Forecast Discussions mentioning any of
"HRRR" "RAP" "RUC13" "RUC" "RR" received at GSD on 12/13/19
AREA FORECAST DISCUSSION
National Weather Service Albany NY
656 PM EST Thu Dec 12 2019
High pressure will shift east of the area tonight into
Friday, with clouds increasing. A few light showers may begin
on Friday, but most of the rain is expected Friday night into
Saturday along with mild temperatures. A strong cold front will
cross the region Saturday night into Sunday. It will turn colder
and windy behind the front, with showers diminishing.
.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
As of 630 PM, not much change as thin canopy of ci/cs was
streaming across the night sky. Temperatures not changing too
much but will become quite diversified between where skies clear
periodically. Light southerly winds will prevail and additional
details can be found below...
Prev Disc, strong 1040 mb high pressure remains centered over
southern New England, resulting in tranquil but chilly
conditions locally. There are areas of high cirrus over the area
and off to the west. Main forecast challenge for tonight will
be cloud cover and temperatures. Return flow begins to develop
as the high shifts east, but sheltered areas (mainly lower
elevations not located in north/south valleys) still have the
potential to decouple under the influence of the departing high.
This potential will also depend on the degree of cloud cover.
Will hedge slightly colder than the NBM for lows, closer to MOS
guidance, anticipating the possibility of a quick drop in temps
after sunset in areas where clearing in the cloud deck develops.
The temps may tend to stabilize or rise a bit in north/south
valleys overnight where a southerly wind develops.
.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
Friday into Friday night, low-level jet forcing will increase
ahead of a trough digging into the Southeast US. This will allow
for an increase in deep-layer moisture, with PWAT values
increasing to 0.75-1.00 inches by late Friday night. The
increase in LLJ forcing and deep moisture will be gradual on
Friday, so much of the day may end up being dry, especially from
the Capital District north. There is some possibility of
drizzle/freezing drizzle as forecast soundings show low-level
saturation with dry air aloft, mainly at higher elevations.
Will continue to monitor, but confidence is not high enough for
a winter weather headline at this point. A persistent southerly
flow will boost temperatures back near/slightly above normal
despite the clouds.
Friday night, the low-level jet forcing will be maximized over
the region, but the best moisture convergence/moisture plume
will be pointed just to our east. Still, this will likely be the
period where the steadiest rainfall will occur. We will also be
favorably positioned under the equatorward entrance region of a
strong upper jet. Temps will continue to rise overnight and
should go above freezing everywhere. 925 mb winds go easterly
around 25-35 kt, so gusty winds are expected over and just to
the lee of the higher terrain of western New England and the
On Saturday, the surface low will track directly through the
forecast area from south to north. With the best moisture
convergence tracking east of the area and models depicting a
midlevel dry slot, we could see the precip become more showery
or end for a time. Temps should be quite mild in the 40s to
lower 50s. The low deepens quickly as it moves north of the
area, likely around 975 mb around the Gaspe Peninsula by 12Z
Sunday (a 24-drop of around 20 mb). Windy conditions will
quickly develop over the local area on the southern periphery of
the circulation, with cold advection changing rain showers to
snow showers over the terrain. The snow could be rather
persistent across the western Adirondacks with a combination of
deformation and upslope forcing. Rain showers will diminish
with time Saturday night into Sunday, ending first in the
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
The storm will begin to lift northeastward into New England and
eastern Canada during Sunday night. Moist, cyclonic northwesterly
flow will remain in place, especially across the Adirondacks and
Mohawk Valley, which will result in scattered snow showers (some
lake-enhanced). Drier weather will reach the Capital District and
points south and east.
Any lake-effect or lake-enhanced snow showers will gradually come to
an end on Monday as upper-level ridging and surface high pressure
builds overhead. Highs Monday will range from the low to mid-30s
across the Hudson Valley and Litchfield Hills to the 20s elsewhere.
Dry weather will be short-lived as the next upper-level trough and
surface low develops across the Ohio and Tennessee valleys later
Monday through Tuesday. There remain small differences with the
track of this system with the 12z GFS tracking the low to our north
and west and the 12z ECMWF with a track to our south and east. A
storm track north and west would likely result in precipitation
starting as snow, then changing to sleet, freezing rain and, in some
places, plain rain. A storm track to the south and east would bring
mostly snow (with perhaps a wintry mix across the mid-Hudson Valley
and Litchfield Hills). We will continue to run with a blended
approach, with a south and east track the more likely solution at
In the wake of this system, colder air returns ahead of another
arctic front, set to sweep across the region later Wednesday into
Thursday. A west to southwesterly flow ahead of this front will lead
to the development of lake-effect snow showers and squalls,
generally impacting the Adirondacks and Mohawk Valley. Some of these
snow showers could reach parts of the Hudson Valley. Yet
another system could move across the Great Lakes on Thursday
with additional light snow. Highs Wednesday and Thursday will
generally be in the 20s across the forecast area.
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
VFR conditions should prevail tonight with a light wind. Some
differences remain among the near-term models when
precipitation arrives on Friday. The NAM is most aggressive
bringing in precipitation to at least KPOU and possibly KPSF in
the 12z-18z range with the HRRR not too far behind. Those
probabilities increase during Friday afternoon as we will
include a PROB30 at this time. Temperature profiles are cold
enough for mixed precipitation if the NAM proves correct with
the onset. So we have continued with VCSH at the later stages
of the TAF period with PROB30 during the afternoon hours.
Friday Night: High Operational Impact. Definite RA.
Saturday: High Operational Impact. Definite RA.
Saturday Night: High Operational Impact. Breezy Likely SHRA.
Sunday: Low Operational Impact. Breezy NO SIG WX.
Sunday Night: Low Operational Impact. Breezy NO SIG WX.
Monday: No Operational Impact. NO SIG WX.
Monday Night: Moderate Operational Impact. Likely SN.
Tuesday: Moderate Operational Impact. Likely SN.
Dry weather will continue through tonight. The next storm
system will be moving from the south for Friday into the
weekend. Although some lighter showers are possible on Friday,
they should be inconsequential. The steadiest rainfall looks to
occur for late Friday night into Saturday morning. Rainfall
will taper to showers and may change to snow showers for the
high terrain for Saturday night into Sunday.
Total rainfall with this system appears to be about 0.75 to
1.25 inches, with some locally higher totals possible across the
high terrain. This will allow rivers and streams to once again
rise. Milder temperatures returning with the rainfall may allow
for some additional runoff due to snow melt as well.
At this time, MMEFS suggest that most rivers should remain
within their banks. There is a low probability of some flooding
mainly in the western New England basins and along the Hoosic
Behind this system, colder and drier weather will return for
Monday. The next system could approach by Tuesday, but
precipitation is mainly expected to be snow with that system.
Area Forecast Discussion
National Weather Service North Platte NE
552 PM CST Thu Dec 12 2019
Issued at 319 PM CST Thu Dec 12 2019
H5 analysis from this morning had low pressure over
northern Quebec. A trough of low pressure extended west of this
feature into western portions of the NW Territories of Canada. south
of this feature, low amplitude flow extended across the CONUS this
morning. Within this flow, a shortwave trough extended from
eastern South Dakota into the Texas Panhandle. Upstream of this
feature, a shortwave trough extended from central Washington
state, south into western Oregon. Current satellite imagery has a
broad shield of mid and high clouds extending from the west coast
into the central and northern plains this afternoon. Skies were
partly to mostly cloudy across western and north central Nebraska
this afternoon. Temperatures as of 2 PM CST, ranged from 29 at
O`Neill to 50 at Thedford and Imperial.
.SHORT TERM...(This evening through Friday night)
Issued at 319 PM CST Thu Dec 12 2019
Still quite a lot of uncertainty with the near term precipitation
forecast over the next 12 to 36 hours. In the period a tandem of
disturbances will approach the area leading to a chance for
precipitation tonight, then again Friday afternoon/Friday night.
For tonight, a weak upper level disturbance will lift across
northern Wyoming into swrn South Dakota this evening, traversing
South Dakota and Nebraska overnight. In advance of this feature
modest lift is present, however, moisture is seriously lacking.
Was concerned about some freezing drizzle potential with this
disturbance, but forecast soundings taken over northern Nebraska
tonight indicate ice in the cloud layer which would lead to rain
or a mix of sleet/snow. Thermally the layer just off the surface
tonight is just above freezing so there is support for a mixture
of pcpn after midnight. Looking at the short range HRRR and
NAM12, there is support for precipitation particularly in the
northeastern forecast area overnight, as well as in the
northwestern forecast area. However, moisture appears to be
lacking in the NW so a dry forecast will continue. In the
northeast, left the slight chance pops in place for a mixture of
sleet/snow. Forecast QPF`s are minimal and no impacts are
expected. On Friday a second shortwave will approach from the
west. At the same time, a northern stream trough will drop south
into North Dakota. This will force a cold front through the
forecast area Friday night. Ahead of the front, mid level lift
will increase across northern Nebraska Friday afternoon as the
shortwave approaches from the west. The 12z HRRR and 12z GFS soln
generates light precipitation from northwestern Nebraska into
central Nebraska Friday afternoon. QPF`s in association with this
feature were running as high as a couple of tenths of an inch per
the 12z NAM12 soln. Prefer the much drier GFS and HRRR solns as
there will be some dry air to overcome in the lowest 10000 FT AGL.
Given the thermal profile per fcst soundings, ptype will be rain
with a quick changeover to snow. As was the case yesterday, there
are some decent model disagreements between the drier GFS, HRRR
camp and wetter NAM12 camp. With this in mind, forecast confidence
for Friday continues to be low to moderate at best.
.LONG TERM...(Saturday through Thursday)
Issued at 319 PM CST Thu Dec 12 2019
Beginning Saturday, a stronger lead shortwave, in association
with a west coast trough of low pressure, will migrate over the
northern Rockies, entering the Nebraska Panhandle midday Saturday.
Strong mid level frontogenesis will spread east of the panhandle
Saturday afternoon into the evening hours leading to the
development of light snow from the western Sandhills into portions
of central and SW Nebraska. Initialized the QPF forecast with WPC
guidance since the NBM was completely dry during the period.
Found the WPC guidance more plausible given the decent model
agreement between the NAM12, GFS and ECMWF soln for
Saturday/Saturday night. That being said, a swath of 1 to 2 inches
of snow is forecast from the eastern panhandle into portions of
central and SW Nebraska. On Sunday into Monday, the west coast
trough will migrate across the Four Corners, emerging onto the srn
plains. Strong mid level lift will spread east from Colorado into
Kansas and northern Missouri by Monday. This will leave the
forecast area mainly dry beyond Sunday with the exception of some
minor chances for snow in the far southern forecast area. Beyond
Sunday, a dry forecast is expected. We will see a glancing blow of
arctic air for Tuesday, followed by a gradual warming into next
.AVIATION...(For the 00Z TAFS through 00Z Friday evening)
Issued at 547 PM CST Thu Dec 12 2019
Scattered mid and high clouds will persist across western and
north central Neb. tonight. VFR conditions will rule. Winds will
become light from the west. A weather system will cross the area
Friday. This could bring some scattered light precipitation.
Otherwise VFR should generally prevail. Some chance that MVFR
could develop across northern Neb. Friday afternoon as ceilings
Area Forecast Discussion
National Weather Service Marquette MI
738 PM EST Thu Dec 12 2019
Issued at 738 PM EST THU DEC 12 2019
System snow has ended this evening so any remaining winter weather
headlines were cancelled.
.SHORT TERM...(This evening through Friday)
Issued at 338 PM EST THU DEC 12 2019
Radar shows a tale of two cities (er, halves of the U.P., anyway)
this afternoon. Out west, the back edge of precip is rapidly
approaching, about 1-2 hours quicker than most models have it. Cut
back on POPs and QPF to account for this drying trend, but may not
have gone far enough. Suffice it to say, the best of the show is
over now for areas west of a Marquette to Iron Mountain line, with
only about an inch of additional snowfall expected in more sporadic
showers than a persistent steady or heavy snow.
Conversely, heavy snow continues more or less east of US-41, though
with a dry patch in Menominee County. This heavier snow is falling
where, per SPC mesoanalysis, fgen in the 850-700 mb layer is
collocated with slightly negative EPV in the same layer. Couple that
with lake enhancement off of Lake Michigan with SE flow under 850 mb
temps around -8 C atop around 45 F lake surface temps, and all the
ingredients are there for heavy snow to continue over the east for
the next several hours. Leaned towards the HRRR for QPF but did not
go as high as it was advertising, instead more or less straddled
between it and the multi-model median. This gives about 3-4" of snow
still to come, with storm totals for the event probably approaching
if not exceeding 10" for Manistique to Seney and Newberry. Briefly
contemplated a last-minute upgrade to warning for Luce and northern
Schoolcraft but decided it wasn`t really worth it at this point with
the event more than half way over with. Instead, will just increase
amounts and wording in the advisory text.
Once the area of low pressure responsible for this snow moves out,
weak high pressure moves in keeping winds light and out of the NE.
With just marginally cold enough air for lake-effect precip, this
means some light scattered lake-effect snow showers will continue
over the NE wind snow belts of Marquette and Baraga counties and the
Keweenaw. But given lake-based instability looks very marginal and
the wind so weak, this ends up being more of a soupy low cloud
effect than snow effect. In turn, that should keep lows tonight a
bit warmer than they might otherwise be with fresh snow and light
winds, since there will be effectively no breaks in the cloud deck
for any good radiational cooling. Lows are expected to be mainly in
the teens west and around 20 east and along the lakeshores. Some
model blends were suggesting that this precip could mix with
freezing drizzle, but because all of the model profiles I saw in
these areas saturated to at least -10 C, decided to keep precip as
all snow showers.
By tomorrow afternoon, the next mid-level short wave will be fast
approaching in mostly zonal flow with very broad cyclonic curvature.
At the surface, a broad area of surface low pressure will develop
over the Mississippi Valley and then lifting NE towards Lake
Michigan. Modest 700 mb Q-vector convergence and with the better
isentropic lift showing up on the 295 K surface (up around 550-600
mb) will lead to a north-south oriented band of snow moving into
Gogebic County late in the day Friday. Most of this snow will hold
off until Friday night, however, so see the long-term discussion for
.LONG TERM...(Friday night through Thursday)
Issued at 440 PM EST THU DEC 12 2019
Pattern has deamplified and become more zonally oriented across the
Lower 48 as Pacific flow has cut thru a ridge along the West Coast,
leaving a strong positive height anomaly centered just n of AK. Over
the coming days, heights will generally fall across the Lower 48
btwn ridge developing/shifting toward the W Coast and a positive
height anomaly developing/lifting across far eastern Canada. Result
will be broad troffing across the Lower 48 this weekend. The western
ridge will then briefly link up with the positive anomaly n of AK
early next week, forcing sharper trof amplification into the Great
Lakes. A mid-level low originating over northern Greenland will be
settling over n central Canada this weekend, and the early week trof
amplification will then send a portion of this mid-level low and
associated arctic air mass toward the Upper Lakes. Thus, after
moderation toward normal temps into the weekend, conditions will
trend colder early next week with an arctic air mass arriving in the
Tue/Wed time frame. Farther down the line, medium range guidance has
been trending toward trof amplification just off the West Coast,
suggesting a warmer period/possibly above normal temps arriving
across the Upper Lakes during the weekend before or leading into
Christmas. As for pcpn, nothing especially noteworthy is in the
offing over the next 7 days. Falling heights across the Lower 48
will lead to a couple of more important systems passing well s and e
of the area thru the weekend into early next week. For Upper MI, a
couple of shortwaves will pass across the area, bringing some -sn.
With the colder air following the second wave on Sat, LES may result
in snowfall approaching advy criteria for a few areas near Lake
Superior, but otherwise, not anticipating anything notable. Arrival
of arctic air Tue may bring a brief period of heavier LES with
lighter LES lingering into Wed. A shortwave may be dropping se
across the area heading into Thu to bring another period of -sn.
Beginning Fri night, a weak shortwave will swing across the fcst
area with better forcing lifting ene across western Upper MI. Only
looks like a dusting to an inch of snow given the relatively brief,
weak forcing. Exception will be over the w where better forcing may
yield an inch or two. Light e to ne wind may provide some weak lake
enhancement for the Keweenaw as well. In addition, fcst soundings
suggest some potential for moisture to fail to reach at least
-10C at times, so can`t totally rule out some patchy -fzdz.
Sat into Sun, a shortwave trof is fcst to swing across northern
Ontario and Upper MI. There could be a little -sn associated with
this feature on Sat, and similar to Fri night, fcst soundings
suggest some patchy -fzdz is not out of the question. More important
aspect of the shortwave passage will be winds becoming nnw with an
influx of colder air which will drop 850mb temps from roughly around
-10C late Sat morning to around -18C by 12z Sun. Convergence zone
owing to the winds becoming nnw may be accompanied by a burst of hvy
lake enhanced snow as typically occurs, especially into the far
western fcst area where models show much sharper convergence.
Otherwise, nnw flow LES take over into Sat night. Inversions will
fall to 5-6kft with the DGZ becoming well positioned in the lake
induced convective layer. As a result, should be able to fluff up at
least a few inches of snow Sat night into Sun morning in the NNW
wind snow belts, potentially a marginal advy type snowfall where LES
is most persistent. Would be a low impact snowfall based on likely
high snow-to-water ratios. From w to e, low-level winds will back w
to wsw Sun/Sun night, shifting lingering LES northward with time.
Last of the LES should shift out of Upper MI by late Sun night.
A weak shortwave will pass on Mon with veering winds bringing light
LES back to the nw fcst area. This will be followed by the next
shortwave dropping se from the n central Canada mid-level low Tue
morning. Arctic air will surge into the area with this wave,
bringing blustery conditions and nw flow LES for Tue. Temps will
likely fall thru the day as 850mb temps fall toward the mid -20s C.
There is uncertainty heading thru Wed/Thu on how fast the cold air
begins to exit, and this is dependent on the timing of the next
shortwave tracking ese thru western Canada to the Great Lakes. For
now, it appears winds should begin to back Tue night/Wed morning,
shifting nw-se oriented LES to the n and ne. Approaching shortwave
will then probably bring a period of -sn to the area at some point
.AVIATION...(For the 00Z TAFS through 00Z Friday evening)
Issued at 637 PM EST THU DEC 12 2019
Light system snow ending this evening. Even after snow ends this
evening, lake-effect clouds and scattered light snow showers continue
through the night and into tomorrow. With moist onshore/upslope
flow and very little wind for mixing, the result will be prolonged
lower cigs. Very likely there will be a long period of IFR cig at
SAW. Kept CMX and IWD MVFR for now but would not be surprised to
see them end up with IFR cigs at times as well.
.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 338 PM EST THU DEC 12 2019
E to NE winds 20 kts east and 25 kts west continue tonight. Next
period of stronger winds up to 30 kts looks to be late Friday night
into Saturday morning over the western half of the lake, becoming N
and spreading across the lake during the day on Saturday. Winds
should subside back to around 20 kts on Sunday. After that the next
period to watch is late Tuesday, when another blast of arctic air
drops south across the lake bringing with it NW winds approaching
gale force and freezing spray that could end up being heavy.
Area Forecast Discussion
National Weather Service Tallahassee FL
931 PM EST Thu Dec 12 2019
.NEAR TERM [Through Tonight]...
Complex scenario evolving across the area this evening. An large
area of showers with thunderstorms is moving across Southeast
Alabama. This is all within in an area of modest isentropic
ascent. After this area of ascent passes to the NE of the region,
the area may be in a bit of a lull until additional forcing
catches up ahead of a developing surface low pressure area.
Surface pressures have been gradually falling in the Gulf waters
south of the mouth of the Mississippi River, so the low pressure
area the models have been showing developing may be getting
As far as the severe potential, with the surface warm frontal
boundary still well south of the coast, expect storms through the
night to remain elevated with no severe threat. Toward daybreak,
as this warm front lifts closer to the coast, there may be a non-
zero threat evolving along the Southeast Florida Big Bend coast
Based on the last few runs of the HRRR and other guidance, will
keep the PoP forecast as currently depicted in the grids with no
big changes planned to the current forecast.
.PREV DISCUSSION [707 PM EST]...
.SHORT TERM [Tonight Through Saturday]...
Surface low pressure over the central northern Gulf of Mexico should
soon take shape as a very progressive upper level shortwave trough
currently over New Mexico provides upper level divergence across the
region. Friday as the low develops off our waters, a weak warm
front associated with the surface low pressure system will lift
northward through the area. Instability is expected to slightly
increase across extreme coastal regions, where there may be enough
time for the warm sector to modify the environment for a few severe
thunderstorms to develop. This is of course all dependent on the
overall strength and intensity of pressure falls across the region.
Currently most global models barely have a closed low as it enters
our region, which leads to less confidence in warm moist air
penetrating into inland areas beyond our coastal counties and marine
zones. That being said, SPC has outlined much of our eastern region
in a marginal risk for severe thunderstorms, citing that isolated
damaging wind gusts, and a brief tornado are possible threats in
this area. The threat of thunderstorms and heavy rain is expected
to start in our western areas along the panhandle Friday morning,
and last through Friday evening, meanwhile our eastern areas should
expect the aforementioned threats to start Friday Afternoon and last
through the night into Saturday morning. A widespread 1-2 inches
of rain is possible, with localized areas possibly seeing up to 3
inches of rain.
.LONG TERM [Saturday Night Through Thursday]...
In the long term period, a brief dry period from Saturday through
Monday morning is likely before the next low pressure system impacts
the region. The aforementioned low pressure system is expected to
track through the Tennessee valley on Monday and Tuesday. The main
impacts from this system across our region will be in the form of a
cold front that arrives Monday evening. It is currently too soon to
determine whether there will be a severe thunderstorm threat;
however, current model guidance has a decent chance for moderate
rain to envelop the region compared to previous cold fronts this
winter season. Cooler temperatures are expected behind the front
with highs in the mid 50s expected for next Wednesday.
[Through 00Z Saturday]
MVFR cigs will deteriorate into IFR and LIFR cigs tonight across
the entire region. Vsbys will also lower overnight especially for
TLH and VLD (some vsbys may drop below the forecast at times), and
showers will continue to spread across the area. IFR and LIFR
conditions will persist throughout the day tomorrow, before a
round of thunderstorms makes its way from west to east during the
afternoon hours. Expect these thunderstorms to mainly impact ECP,
TLH, and VLD where instability will be highest.
Strong easterly to northeasterly winds will continue today as a
strong surface high pressure system remains in place across the
Mid-Atlantic states today. A small craft advisory will remain in
place today through friday morning. Seas are expected to remain
2-3 feet in the near shore waters, and 6-7 feet in the offshore
waters through Friday morning. A gulf low is expected to impact
the waters tomorrow, which will bring the potential for severe
thunderstorms over the water that may produce strong gusts up to
55 knots at times.
A storm system will move through the region on Friday bringing
widespread rains. Low dispersion indices are expected throughout
the day on Friday. In the wake of the storm system, drier air
will move in for the weekend, but red flag conditions are not
expected. The next storm system will approach the region on
Monday night into Tuesday.
Over the next two days, the Tri-State region will generally see
1-2 inches of rain. Some areas especially along the coast may get
close to 3 inches of rain. Much of the area remains in moderate
drought conditions. Even with the totals the area will likely
experience, there are no flooding or river flooding concerns at
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @NWSTallahassee.
.PRELIMINARY POINT TEMPS/POPS...
Tallahassee 52 67 53 69 44 / 80 90 50 10 0
Panama City 53 68 55 67 50 / 90 90 40 10 0
Dothan 47 60 50 63 42 / 90 80 40 10 0
Albany 47 59 52 64 43 / 90 80 60 10 0
Valdosta 52 64 55 67 43 / 80 80 70 20 0
Cross City 59 72 58 71 46 / 60 80 70 20 0
Apalachicola 57 69 56 67 50 / 80 90 60 10 0
FL...High Rip Current Risk until 10 PM EST this evening for Coastal
GM...Small Craft Advisory until 1 AM EST /midnight CST/ Friday for
Coastal Waters From Ochlockonee River to Apalachicola Fl
out to 20 Nm-Coastal waters from Mexico Beach to
Apalachicola FL out 20 NM-Coastal waters from Mexico Beach
to Okaloosa Walton County Line FL out 20 NM-Waters from
Suwannee River to Apalachicola FL from 20 to 60 NM-Waters
from Apalachicola to Mexico Beach FL from 20 to 60 NM-
Waters from Mexico Beach to Okaloosa Walton County Line FL
from 20 to 60 NM.