Forecast Discussions mentioning any of "HRRR" "RAP" "RUC13" "RUC" "RR" received at GSD on 01/17/24


Area Forecast Discussion
National Weather Service Burlington VT
1028 PM EST Tue Jan 16 2024 .SYNOPSIS... A widespread powdery snow will quickly taper off this evening, leading to a mainly dry but cold night. Another lake effect snow event in northern New York will impact southern St. Lawrence County at times tomorrow through tomorrow night, but it will not be as prolific as the previous one. Following quiet and seasonably cold weather on Thursday, expect a punch of bitter cold Friday through Sunday morning. Moderating temperatures will follow early next week. && .NEAR TERM /THROUGH WEDNESDAY NIGHT/... 1020 PM UPDATE... Steady snowfall associated with the winter storm has come to an end as the 994mb surface low lifts eastward into the Bay of Fundy. So have let the Winter Weather Advisories expire as scheduled. As of this writing, we have 6.0 inches of snow here at BTV. In general, widespread 4-6 inches fell across the Champlain Valley with the jackpot area being Rutland county into central VT, which received 7-10 inches of snow. Snow to liquid ratios are closer to 20 to 1 so a nice fluffy, relatively low impact snow event to make it look more like winter across North Country. There remains areas of slick travel so be sure to take it easy out there. Otherwise, forecast remains largely on track. Nighttime microphysics satellite imagery shows partial clearing developing as weak high pressure builds in from the west. With a fresh snow cover on the ground and 925mb temperatures around -12C, expect temperatures to dip into the single digits once clouds scatter and winds slacken. PREVIOUS DISCUSSION... Our widespread snowfall is ongoing with reports of 2 to 5" so far trickling in, with snowfall rates this afternoon near an inch at times. Locally heavier amounts of snow based on quasi- stationary mesoscale banding oriented over much of Vermont (except for northwestern areas) have likely panned out, so there should be many happy snow lovers out there. RAP analysis at 3 PM showed a 1002 millibar surface low pressure near Martha`s Vineyard while mid-level frontogenesis continued to promote snow back across our region. As a strong upper level shortwave impinges from the west and the low pressure system continues to push northeastward, the back end of snow will quickly push eastward this evening. However, increasing low level northerly flow could help maintain accumulating snow linger a bit longer in the northern Champlain Valley this evening. Overall, without rapid deepening of the low or arriving of strong high pressure from the west, we won`t see too much wind overnight behind the storm. As such, not much upslope snow potential. That being said, favorable fetch off of Lake Ontario has already gotten the lake effect snow machine going again, and that will be our main story through the rest of the near term period. No real change to the thinking from the previous forecast in which it will be rather localized event, focused near and south of Route 3 in northern New York. A Lake Effect Snow Warning is now in effect for southeastern St. Lawrence County for 7 AM Wednesday through 1 AM Thursday where storm totals could approach a foot during the event. Ingredients are favorable for a good extent of a lake-parallel band, but it will tend to waver over time as low level flow modifies with subtle changes in the fast mid-level flow. The height of the event looks to be in the latter part of the day tomorrow, and then the band overnight will sink south of St. Lawrence County. During the height of the event, some snow showers may extend across much of northern New York into the high terrain of northern Vermont with light accumulations expected. Winds tomorrow actually should increase relative to tonight with more of a gradient wind develops with broad low pressure to our north and high pressure to our south. Southwesterly winds again, like on Monday, will be fairly dry aside from the lake moisture, so a mix of sun and clouds is expected for much of the day in central and southern portions of Vermont. Temperatures will be much like today, mainly in the upper teens to low 20s for highs. Both tonight and tomorrow night will be seasonably cold, with potential for near or below zero readings in the typical coldest spots in the Adirondacks && .SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/... As of 341 PM EST Tuesday...Relatively quiet conditions are expected for Thursday. Lapse rates between 7 and 8.5 deg C/km in the sfc to 850 mb range could support some widely scattered convective afternoon snow showers, though deep moisture is lacking and thus limits potential snow chances. Best chance for some afternoon snow showers will be in the Adirondacks, east of Lake Ontario due to locally enhanced low moisture. However, generally zonal west-to- east flow will keep any organized Lake Effect snow bands shunted to our south and thus not expecting any accumulating snow in our area beyond a dusting. Temperatures will top out in the 20s during the afternoon and drop into the single digits Thursday night/Friday morning. && .LONG TERM /FRIDAY THROUGH TUESDAY/... As of 341 PM EST Tuesday...Beginning of the long term forecast period will feature a brief but intense cold spell as troughing over the eastern US strengthens, with increasingly negative height anomalies Friday going into Saturday. Arctic air mass will be somewhat modified by the time it drops into our forecast area, but still cold enough that much of our forecast area will see the coldest temperatures of the season thus far early this weekend. Friday will be dry but cold, with temperatures struggling to rise above the mid to upper teens. Friday night/Saturday morning will be the coldest night of the stretch as the modified arctic air moves into the region. Low temperatures a few degrees either side of zero look reasonable with 6-12 mph winds and resultant wind chills 5 to 15 below throughout the area. In addition to the shot of cold air, expect some widely scattered light snow showers Saturday as a front pushes through, though accumulations would generally be minimal due to lack of moisture and cloud temperatures too cold to support dendrites. Temperatures will only warm to 5-12 degrees above zero during the day Saturday, but some increasing wind gusts during the daylight hours will keep bitter cold conditions in place. Wind chills will remain below zero areawide during the day on Saturday. Coldest wind chills Saturday morning through Sunday morning will be over the northern Adirondacks (10 to 15 below) and across the higher summits of the Greens and Adirondacks (20 to 30 below zero). Anyone heading outside this weekend, especially anyone headed to the mountains, should prepare accordingly for the dangerous wind chills. Sunday will be a transition day with building heights marking a significant pattern change toward positive upper-level height anomalies and warmer conditions to start next week. Temperatures will still be cold Sunday (highs only in the teens), and especially cold overnight in eastern Vermont (near 0) where the coldest air mass will still be in place. Areas west of the Greens will start to see subtle warm air advection Sunday night, with lows generally around 10 deg F expected. Look for temperatures to return to near/above normal by Monday as high pressure shifts to our east and return southwesterly flow develops. There are several chances for showers early next week as several boundaries move through the area, but no impactful weather is expected through Tuesday. && .AVIATION /03Z WEDNESDAY THROUGH SUNDAY/... Through 00Z Thursday... The steady snow is currently exiting the region from west to east, and it should be out of the region by midnight. Visibilities are improving from IFR as the steady snow ends so all terminals should be MVFR or VFR by then. Some lingering light snow showers could keep visibilities at MVFR for a time this evening into the early overnight hours, but all terminals should improve to VFR by the pre dawn hours. Ceilings have also been rising rapidly after the steady snow ends so they should be VFR across the region by midnight. Winds are generally calm or northwesterly and that should continue for most of the night. However, winds switch to the southwest during the day tomorrow and increase, with gusts up in the 15-20 KT range possible, especially at MSS. VFR conditions should persist throughout the day tomorrow, except at SLK where some lake effect snow showers could bring visibilities down from time to time in the afternoon. Outlook... Wednesday Night: VFR. Slight chance SHSN. Thursday: VFR. NO SIG WX. Thursday Night: VFR. NO SIG WX. Friday: VFR. Slight chance SN. Friday Night: VFR. NO SIG WX. Saturday: Mainly VFR, with local MVFR possible. Slight chance SHSN. Saturday Night: VFR. NO SIG WX. Sunday: VFR. NO SIG WX. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...Lake Effect Snow Warning from 7 AM Wednesday to 1 AM EST Thursday for NYZ029. Winter Weather Advisory from 7 AM Wednesday to 1 AM EST Thursday for NYZ087. && $$ SYNOPSIS...Kutikoff NEAR TERM...Chai/Kutikoff SHORT TERM...Duell LONG TERM...Duell AVIATION...Myskowski
Area Forecast Discussion
National Weather Service Austin/San Antonio TX
625 PM CST Tue Jan 16 2024 ...New AVIATION... .SHORT TERM... (Tonight through Wednesday night) Issued at 1259 PM CST Tue Jan 16 2024 Key points: -A Wind Chill Advisory and a Hard Freeze Warning are in effect through 10am Wednesday. Although winds tonight will be minimal and wind chills will be much closer to the ambient temperatures, those temps will tank quickly this evening with Wednesday morning lows in the teens for most locations. A few spots could dip into the single digits briefly. Although not every location will see wind chills fall below 10 degrees, it will likely be the coldest night since Feb 2021 for most spots and so we`ll continue the headlines as-is. -Continue to protect people, pipes, pets, and plants from this dangerous cold. Discussion: Midday RAP analysis indicates a 1034mb surface high currently centered near the Red River Valley, and it is forecast to drift southward this evening. This will keep clear skies overhead and allow winds to decouple over much of our region except perhaps near the Rio Grande where weak southeasterlies will establish late tonight. After daytime highs rising above freezing in many areas today, we`ll quickly cool this evening. Dew points currently in the single digits won`t rise much, maybe 2-5 more degrees, so this will keep the floor for lows depressed. Expecting they will likely be in the low to mid teens for most of our populated areas, with localized areas perhaps dipping to 8 or 9 degrees briefly. Along the Rio Grande, expect lows in the upper teens to low 20s. Southerly winds will continue to develop through the day Wednesday as the surface high shifts off to the east and a weak lee low develops well off to our northwest. We`ll definitely see the streak of freezing temperatures end for those areas that don`t quite get there today, and most locations should rise into the 40s. Near 50 for some spots in our far SW counties! A gradual increase in surface moisture will follow tomorrow evening into the overnight, but probably not fast enough to preclude another night of freezing temperatures in some of our western and northwestern areas, and potentially for some locations near and just east of I-35 as well. && .LONG TERM... (Thursday through Tuesday) Issued at 1259 PM CST Tue Jan 16 2024 The next cold front will push through South Central Texas Thursday evening, but not before we manage to warm-up rather quickly, with highs in the mid to upper 60s and lower 70s. A stark contrast between Wednesday morning and Thursday afternoon, with nearly 50-60 degree temperatures differences within a 36 hour period. As winds turn northeasterly Thursday night, colder air will filter in from the north. Winds will pick up quickly shortly before sunrise Friday as a reinforcing shot of cold air pushes in from the north. That will likely result in wind chills in the 10s and 20s on Friday morning. Due to an increased pressure gradient from the reinforcing shot of cold air Friday, the afternoon is expected to be quite breezy and may be close to advisory levels. Expect sustained winds of 15-25 mph, gusting to 30-35 mph at times. This will make it feel rather cold throughout the day as high temperatures struggle to get out of the 40s for the northern half of the CWA. By the time we get into the weekend, 500mb flow should start to turn more zonal and then increasingly southwesterly by the end of the weekend. On Saturday, a large storm system will make landfall on the West Coast and start moving westward into the intermountain west. Meanwhile, back here in South Central Texas, temperatures will struggle to rebound on Saturday but we should start to see a steady warmup beginning on Sunday afternoon and continuing into the start of next week. At the same time, we should start to see a bit more high cloud cover as the subtropical jet starts ushering in more mid- level moisture ahead of deepening trough over the Four Corners on Sunday. Ensemble guidance along the the latest 12Z NBM indicate PWATS will approach 1-3 sigma above the mean Monday and Tuesday, and the overall signal for a heavier rain event continues to increase for the Monday-Tuesday time frame. Most guidance indicates we have a rather decent shot at several inches of precip, but for now we will temper our expectations somewhat. The latest NBM guidance for KAUS indicates a 38% chance for >2" of precip on Monday, and up to a 33% chance for >2" on Tuesday as well. The one thing will will need to watch is for any arctic air to linger longer than currently forecast. If that were to happen, there would be an outside shot at some wintry precip mixing in Monday morning, but as it stands right now, temperatures should be above freezing and all precip should fall as liquid. Monday and Tuesday afternoon should warm into the 60s, which is much closer to seasonal normals. && .AVIATION... (00Z TAFS) Issued at 616 PM CST Tue Jan 16 2024 VFR conditions are expected at area TAF sites through the current forecast period. Winds will drop off considerably around 00Z, then generally remain light and variable along I-35 overnight, with south winds returning mid to late morning Wednesday. For DRT, light northwest winds continue this evening, with light easterly winds overnight. Southeast winds return by mid morning. Only high clouds are anticipated through the forecast period. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 13 45 34 68 / 0 0 0 0 Austin Bergstrom Intl Airport 11 45 30 68 / 0 0 0 0 New Braunfels Muni Airport 12 46 31 70 / 0 0 0 0 Burnet Muni Airport 11 44 32 65 / 0 0 0 0 Del Rio Intl Airport 20 50 31 73 / 0 0 0 0 Georgetown Muni Airport 11 45 32 67 / 0 0 0 0 Hondo Muni Airport 13 47 29 72 / 0 0 0 0 San Marcos Muni Airport 10 46 30 69 / 0 0 0 0 La Grange - Fayette Regional 11 46 35 65 / 0 0 0 0 San Antonio Intl Airport 14 45 33 69 / 0 0 0 0 Stinson Muni Airport 14 47 32 70 / 0 0 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... Hard Freeze Warning until 10 AM CST Wednesday for Atascosa-Bandera- Bastrop-Bexar-Blanco-Burnet-Caldwell-Comal-De Witt-Dimmit-Edwards- Fayette-Frio-Gillespie-Gonzales-Guadalupe-Hays-Karnes-Kendall-Kerr- Kinney-Lavaca-Lee-Llano-Maverick-Medina-Real-Travis-Uvalde-Val Verde-Williamson-Wilson-Zavala. Wind Chill Advisory until 10 AM CST Wednesday for Atascosa-Bandera- Bastrop-Bexar-Blanco-Burnet-Caldwell-Comal-De Witt-Dimmit-Edwards- Fayette-Frio-Gillespie-Gonzales-Guadalupe-Hays-Karnes-Kendall-Kerr- Kinney-Lavaca-Lee-Llano-Maverick-Medina-Real-Travis-Uvalde-Val Verde-Williamson-Wilson-Zavala. && $$ Short-Term...Platt Long-Term...17 Aviation...Platt
Area Forecast Discussion
National Weather Service Green Bay WI
500 PM CST Tue Jan 16 2024 Updated aviation portion for 00Z TAF issuance .KEY MESSAGES... - A prolonged period of arctic air will continue to bring very cold wind chills each night into early morning through the weekend. Additional wind chill headlines are possible at times during this period. - Cold air will increase the potential for ice jams, potentially leading to localized flooding. - The deep freeze will come to an end early next week as a milder airmass makes its way south across the Midwest. Watching potential for a mixed precip and dense fog event early next week given rising temperatures. && .DISCUSSION... Issued at 213 PM CST Tue Jan 16 2024 Short Term...Tonight and Wednesday The latest RAP analysis and satellite/radar imagery show Arctic high pressure centered over the southern Plains and low pressure over far northern Manitoba and Ontario. Very cold temps with brisk WSW winds continue early this afternoon with widespread wind chills between 15 and 20 below zero. Cloud cover is streaming in from the northwest ahead of shortwave energy north of International Falls and over central Manitoba. Scattered flurries and light snow are noted upstream as well. Forecast concerns revolve around the bitter cold wind chills and light snow chances. Clouds and light snow chances: The moderately strong shortwave over Manitoba will swing southeast and across northern Wisconsin and the Upper Peninsula tonight. While models have been terrible depicting cloud cover in this arctic airmass, arrival of stronger forcing and upper motion should result in more in the way of cloud cover tonight. Low level saturation will remain difficult to achieve, but perhaps ceilings will become low enough for some flurries over far northern WI and will leave in the forecast. Any flurries should be departing by 6 am Wed, and thinking skies will return to mostly clear to partly cloudy for most of Wednesday despite higher layer RH depicted in the guidance. Temps, wind chills, and hazards: Due to more cloud cover tonight, warmer air temps and wind chills are expected. Wind chills are forecast to hold relatively steady in the 15 to 25 below range for most of the area. This falls into the "close enough" category to reissue the Wind Chill Advisory starting at 6 pm this evening and ending at 9 am Wednesday. Temps will moderate slightly on Wednesday with highs ranging from 5 to 12 degrees across the region. Ice Jam Potential: Recent precip falling into the rivers combined with the Arctic airmass sticking around this week will keep ice jam a possibility. Experimental freeze-up ice jam potential forecasts has the available sites on the Wisconsin, Oconto, and Menominee at medium or high potential. Hydrographs showing a few spots likely already experiencing some minor jamming the past couple of days and this could continue as the rivers fully freeze up. Will continue to highlight the threat in the HWO, Weather Story, and social media. Long Term...Wednesday Night Through Tuesday Temperatures... Below normal temperatures and dangerously cold wind chills continue to be the main focus of the extended forecast period. High temperatures are only expected to reach into the tens above zero into the end of the week with wind chills remaining in the teens to 20s below zero during this time. Coldest wind chills are expected during the late night into early morning hours each day. Additional wind chill headlines are likely through the end of the work week. The deep freeze is expected to come to an end early next week as a milder airmass makes its way south across the Midwest. Precipitation... A calmer pattern looks to set up for the majority of the extended following last week`s active weather. Some light snow and flurries are possible mostly in northern Wisconsin and Door county Thursday into Friday as a shallow and transient piece of upper-level energy clips the upper Midwest on Wednesday. Some lake enhancement will be possible as winds veer to northwesterly over Lake Superior and a cold air advection regime sets up across much of the Great Lakes region. Next chances for light to moderate snow arrive to the forecast area Friday to Saturday as a trough digs south into the upper Mississippi Valley. Most models aren`t currently picking up on any significant snow accumulation, but the presence of an inverted surface trough hovering over Lake Michigan and pre-conditioned northerly flow originating from Lake Superior warrants keeping an eye on as additional models come in range. If this situation were to pan out, highest snow amounts would likely be across northern Wisconsin and in Manitowoc county where the inverted trough axis points. Chances for mixed precip will also be likely to begin next week as temperatures warm up across the region. There is still considerable disagreement between models about timing and expanse of precip this far out in the forecast, but temperature profiles currently support mixed precip as prevailing southwesterly winds advect warmer air up into the region. && .AVIATION...for 00Z TAF Issuance Issued at 500 PM CST Tue Jan 16 2024 VFR conditions are expected in most areas through Wednesday, with middle and high clouds at times. Lake effect clouds and snow showers generated over the bay will produce IFR conditions at times over the northern part of the Door Peninsula, especially at K2P2. Scattered to broken clouds with bases between 2000 and 3000 feet are also possible north of a RRL to IMT line. && .GRB WATCHES/WARNINGS/ADVISORIES... Wind Chill Advisory until 9 AM CST Wednesday for WIZ005-010>013- 018>022-030-031-035>040-045-048>050-073-074. && $$ DISCUSSION.....MPC/Goodin AVIATION.......RDM
Area Forecast Discussion
National Weather Service Portland OR
131 PM PST Tue Jan 16 2024 .SYNOPSIS...An approaching frontal system will bring widespread freezing rain to inland areas below roughly 1500 ft, snow across the high Cascades, and rain elsewhere. An Ice Storm Warning remains in effect for much of the region through this evening and into Wednesday morning. For midweek on, expect a return to climatological conditions with milder temperatures and rain into the extended. && .DISCUSSION...TONIGHT THROUGH MONDAY...Satellite and radar as of 1 PM shows an area of low pressure near 43N/130W sending a stratus shield northeast with a few hundredths of an inch of precipitation accumulating in SW Oregon. Temperatures across SW Washington, NW Oregon remain in the mid to 20s. The warm sector will overrun the cold pool that currently sits in the interior lowlands and freezing rain with start accumulating in the coming hours. Ice accumulations will increase the closer one gets to the Columbia River Gorge which is the source of the cold air drainage and the area in which the cold pool is deepest. The current Ice Storm Warnings remain in place throughout the region for significant ice accumulations. The freezing rain will start in the southern Willamette Valley but according to the HRRR the depth of the cold air in this area is fairly shallow. Near Creswell it`s only 1200 ft and 1600 ft near Eugene. It won`t take long for the warm southwesterly flow to scour out the cold air but there will still be a few hours of freezing rain so ice accumulations in that zone which reaches as far north as Albany will see a range of 0.05 to 0.25" of ice with the higher amounts to the north. This will be the trend areawide, the closer you get to the source i.e. the Gorge, the greater the ice accumulations. The cold pool will scour out and once a site climbs above freezing it will remain above freezing and freezing rain will transition to rain. The exception will be sheltered pockets on the east side of the Coast Range around Lees Camp and Timber. The cold air will be trapped and ice accumulations will persist into the overnight hours. The Greater Portland/Vancouver metro will see ice accumulations between 0.25-0.50" of ice through late Tuesday night, early Wednesday morning. The Columbia River Gorge will hold onto mixed precipitation through Wednesday and into parts of Thursday as the next system quickly approaches which will maintain east winds through the Gorge. In the Cascades snow levels will sit around 4500 feet and accumulations between 10-20 inches from Tuesday through Wednesday night is likely. Strong winds across the crest will reduce visibility at times. Daytime highs on Wednesday will push into the mid/upper 40s in the Valley and 50s by the coast. Snow levels will be rising as well, pushing up to near 6000 feet. While the Gorge continues to see wintry precipitation due to cold air staying in place, most lowland areas will just see rain. Beyond Wednesday and into early next week, expect a return to climatological temperatures with multiple rounds of precipitation from an active NE Pacific. Persistent southwesterly flow will maintain higher snow levels producing primarily rain across much of the Cascades. -BMuhlestein && .AVIATION...00Z TAFs: Precipitation on track with (most) models. HRRR, RAP simulated radar seems best at this time. Not a whole lot of changes to the forecast at this point with associated warm front lifting northward across region tonight. Will see CIGS lowering to lower VFR in the afternoon into early evening, with widespread MVFR and pockets of IFR CIGS Tue night into early Wed morning. Precipitation continues to move northward, already across Lane County with that moving northward reaching by 00Z Wed. With cold air in lowlands, this will fall mainly as freezing rain though may see a mix of sleet and snow initially. As warm air spreads into the region from south to north tonight, will see threat of freezing rain end, generally at KEUG around 03Z Wed, KSLE around 06Z, and KPDX around 12Z Wed. However, lighter offshore flow (east winds) maintains cold air, with freezing rain likely lasting well into Wed am near and in Columbia River Gorge. PDX AND APPROACHES...Warm front approaches from the south, will see CIGS lower to low VFR later today, with generally MVFR after 04Z Wed. IFR not out of the question after 12Z Wed with HREF probabilities and model soundings indicating such. Precipitation expected around 00Z mainly as freezing rain with possibly a mix of sleet or snow to start. The brunt of the ice accumulation expected from 00Z-06Z with 0.15 to 0.20 inch, then up to 0.10 06-12Z Wed. Fortunately will be slowly rising temperatures overnight. Appears will rise above 32 deg F 10-12Z Wed /mh /Rockey && .MARINE...Low pres over the north Pac will push a warm front northward across the coastal waters tonight. Winds will pick up behind the front as the low approaches the coast, with gusts to 35 kt on the waters to south of Cape Falcon. As such, will maintain Gale Warning on the coastal waters from Cape Falcon southward. To the north, gusts not as strong, so will maintain Small Craft Advisory in that area. Seas will come up a bit with the winds, generally to 10 to 14 ft. Trailing cold front will push onshore on Wed. Next system arrives on Thu, with another warm front lifting northward across the region, with the trailing cold front arriving on Fri. Gradients not quite a potent, and seem to be more favoring east to southeast flow. So, potential of gales not quite as favorable with such a pattern. Still, winds likely 20 to 25 kt. with seas gradually building back to the mid-teens. Active weather continues into the weekend with system following similar track to recent systems. /mh && .PQR WATCHES/WARNINGS/ADVISORIES... OR...Ice Storm Warning from 2 PM this afternoon to 4 AM PST Wednesday for Central Willamette Valley-Coast Range of Northwest Oregon-Greater Portland Metro Area. Ice Storm Warning until 10 PM PST this evening for Central Coast Range of Western Oregon-South Willamette Valley. Ice Storm Warning from 4 PM this afternoon to 4 AM PST Wednesday for Lower Columbia. Wind Advisory until 7 PM PST this evening for Greater Portland Metro Area. Winter Weather Advisory from 1 PM this afternoon to 10 PM PST Wednesday for Cascades in Lane County-Northern Oregon Cascades. Ice Storm Warning from 4 PM this afternoon to 10 AM PST Wednesday for Central Columbia River Gorge-Upper Hood River Valley-Western Columbia River Gorge. WA...Ice Storm Warning from 2 PM this afternoon to 4 AM PST Wednesday for Greater Vancouver Area. Ice Storm Warning from 4 PM this afternoon to 4 AM PST Wednesday for I-5 Corridor in Cowlitz County. Ice Storm Warning from 4 PM this afternoon to 10 AM PST Wednesday for Central Columbia River Gorge-South Washington Cascade Foothills-South Washington Cascades-Western Columbia River Gorge. Winter Weather Advisory from 4 PM this afternoon to 4 AM PST Wednesday for Willapa Hills. PZ...Small Craft Advisory until 7 AM PST Wednesday for Coastal waters from Cape Shoalwater WA to Cape Falcon OR out 10 NM- Columbia River Bar. Gale Warning until 7 AM PST Wednesday for Coastal waters from Cape Foulweather OR to Florence OR out 10 NM.Coastal waters from Cape Foulweather OR to Florence OR from 10 to 60 NM. Small Craft Advisory until 7 AM PST Wednesday for Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM. && && $$ www.weather.gov/portland Interact with us via social media: www.facebook.com/NWSPortland www.twitter.com/NWSPortland