HRRR-TLE GRIB-2 Fields Updated 10/10/2017 by T Alcott / ESRL GSD Note: Record numbers change frequently, since not every field is available at every hour (e.g., PQPF at hour 0) Example below is for a 6-hour forecast ## HEAVY RAINFALL # # Neighborhood probabilities (chance of occurrence within 40-km) # 1-h accumulation > 0.5, 1.0, 2.0 in # 3-h accumulation > 0.5, 1.0, 2.0, 3.0 in # 6-h accumulation > 0.5, 1.0, 2.0, 3.0, 6.0 in # 1:0:d=2016072600:APCP:surface:5-6 hour acc fcst:prob >12.7 2:2143509:d=2016072600:APCP:surface:5-6 hour acc fcst:prob >25.4 3:4287018:d=2016072600:APCP:surface:5-6 hour acc fcst:prob >50.8 4:6430527:d=2016072600:APCP:surface:3-6 hour acc fcst:prob >12.7 5:8574036:d=2016072600:APCP:surface:3-6 hour acc fcst:prob >25.4 6:10717545:d=2016072600:APCP:surface:3-6 hour acc fcst:prob >50.8 7:12861054:d=2016072600:APCP:surface:3-6 hour acc fcst:prob >76.2 8:15004563:d=2016072600:APCP:surface:0-6 hour acc fcst:prob >12.7 9:17148072:d=2016072600:APCP:surface:0-6 hour acc fcst:prob >25.4 10:19291581:d=2016072600:APCP:surface:0-6 hour acc fcst:prob >50.8 11:21435090:d=2016072600:APCP:surface:0-6 hour acc fcst:prob >76.2 12:23578599:d=2016072600:APCP:surface:0-6 hour acc fcst:prob >152.4 # # # Probability of 6-h QPF exceeding Atlas-14 recurrence intervals # (coded as "flash flood runoff" due to lack of a standard GRIB-2 field name) # # Neighborhood probabilities (chance of occurrence within 40-km) # 6-h accumulation > 1, 2, 5, 10, 25, 50, 100 y recurrence intervals 16:4257223:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >1 17:4532037:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >2 18:4802939:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >5 19:5066780:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >10 20:5326064:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >25 21:5578744:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >50 22:5830093:d=2017101012:FFLDRO:surface:0-6 hour acc fcst:prob >100 # # # Probability of heavy 1-h rainfall on saturated soil (>95% soil moisture in 0-1cm layer) # # Neighborhood probabilities (chance of occurrence within 40-km) # 1-h accumulation > 0.5, 1.0, 2.0 in 13:3470450:d=2017101012:SSRUN:surface:5-6 hour acc fcst:prob >12.7 14:3744381:d=2017101012:SSRUN:surface:5-6 hour acc fcst:prob >25.4 15:4006167:d=2017101012:SSRUN:surface:5-6 hour acc fcst:prob >50.8 ## WINTER WEATHER HAZARDS # # Explicit snowfall using HRRR microphysics and LSM scheme # # Neighborhood probabilities (chance of occurrence within 40-km) # 1-h accumulation > 0.5, 1.0, 2.0 in # 6-h accumulation > 1.0, 2.0, 3.0, 4.0, 6.0 in # 12-h accumulation > 1.0, 3.0, 6.0, 12.0 in 23:6232467:d=2017101012:ASNOW:surface:11-12 hour acc fcst:prob >0.0127 24:6491976:d=2017101012:ASNOW:surface:11-12 hour acc fcst:prob >0.0254 25:6747662:d=2017101012:ASNOW:surface:11-12 hour acc fcst:prob >0.0508 26:6991810:d=2017101012:ASNOW:surface:11-12 hour acc fcst:prob >0.0762 27:7230180:d=2017101012:ASNOW:surface:6-12 hour acc fcst:prob >0.0254 28:7496777:d=2017101012:ASNOW:surface:6-12 hour acc fcst:prob >0.0508 29:7754848:d=2017101012:ASNOW:surface:6-12 hour acc fcst:prob >0.0762 30:7998112:d=2017101012:ASNOW:surface:6-12 hour acc fcst:prob >0.1016 31:8236482:d=2017101012:ASNOW:surface:6-12 hour acc fcst:prob >0.1524 32:8474852:d=2017101012:ASNOW:surface:0-12 hour acc fcst:prob >0.0254 33:8720986:d=2017101012:ASNOW:surface:0-12 hour acc fcst:prob >0.0762 34:8961966:d=2017101012:ASNOW:surface:0-12 hour acc fcst:prob >0.1524 35:9200336:d=2017101012:ASNOW:surface:0-12 hour acc fcst:prob >0.3048 # # # Blizzard conditions # # Neighborhood probabilities (chance of occurrence within 40-km) # of >1.0 in/h snowfall, <0.25 mi visibility, frequent gusts >35mph 36:9438706:d=2017101012:SALBD:surface:12 hour fcst:prob >0 # # # Freezing rain # Neighborhood probabilities (chance of occurrence within 40-km) # 6-h accumulation > 0.01, 0.1, 0.25, 0.5 in 37:9677052:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=1 parm=225:surface:6-12 hour acc fcst:prob >0.254 38:9937432:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=1 parm=225:surface:6-12 hour acc fcst:prob >2.54 39:10179422:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=1 parm=225:surface:6-12 hour acc fcst:prob >6.35 40:10417792:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=1 parm=225:surface:6-12 hour acc fcst:prob >12.7 ## SEVERE WEATHER HAZARDS # # Probability of a thunderstorm within 40 km, at valid time ### // currently unavailable // 45:12155623:d=2017101012:TSTM:surface:12 hour fcst: # # Probability of Severe Thunderstorm in last 4 hours # Neighborhood probabilities (chance of occurrence within 40-km) # wind > 50 kt, 65 kt 46:12393956:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=19 parm=199:surface:8-12 hour ave fcst:prob >0 47:12636519:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=19 parm=202:surface:8-12 hour ave fcst:prob >0 # hail > 1 in, 2 in 48:12874889:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=19 parm=198:surface:8-12 hour ave fcst:prob >0 49:13122335:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=19 parm=201:surface:8-12 hour ave fcst:prob >0 # tornado 50:13360705:d=2017101012:var discipline=0 center=59 local_table=1 parmcat=19 parm=197:surface:8-12 hour ave fcst:prob >0 ## FIRE WEATHER # # Probability of fire weather conditions # Neighborhood probabilities (chance of occurrence within 40-km) # Critical: RH <25%, soil moisture <25%, wind gusts >20kt 41:10656162:d=2017101012:FIREOLK:surface:12 hour fcst:prob >=14 <15 # Severe: RH <15%, soil moisture <15%, wind gusts >25kt 42:11035100:d=2017101012:FIREOLK:surface:12 hour fcst:prob >=16 <17 # Extreme: RH <10%, soil moisture <10%, wind gusts >30kt 43:11303856:d=2017101012:FIREOLK:surface:12 hour fcst:prob >=18 <19 # # Probability of significant (>60deg) wind shift with speeds >20kt # Neighborhood probabilities (chance of occurrence within 40-km) 44:11542202:d=2017101012:WDIR:10 m above ground:12 hour fcst:prob >=60 <10 ## AVIATION HAZARDS # # Point probability of visibility < 5, 3, 1 miles at valid time 28:42657738:d=2016072600:VIS:surface:6 hour fcst:prob <8047 29:48611505:d=2016072600:VIS:surface:6 hour fcst:prob <4828 30:54565272:d=2016072600:VIS:surface:6 hour fcst:prob <1609 # # Probability of IFR flight rules at valid time # (coded as probability of flight rules >1, due to lack of an available table for parm 205) 31:60519039:d=2016072600:var discipline=0 center=59 local_table=1 parmcat=19 parm=205:surface:6 hour fcst:prob >1 # # Probability of ceiling < 3000, 1000, 500 feet at valid time 32:66472806:d=2016072600:HGT:local level type 215 0:6 hour fcst:prob <915 33:72426573:d=2016072600:HGT:local level type 215 0:6 hour fcst:prob <305 34:78380340:d=2016072600:HGT:local level type 215 0:6 hour fcst:prob <152 # # Probability of echo top height > 25, 30, 35, 40k feet at valid time 35:84334107:d=2016072600:RETOP:surface:6 hour fcst:prob >7622 36:90287874:d=2016072600:RETOP:surface:6 hour fcst:prob >9146 37:96241641:d=2016072600:RETOP:surface:6 hour fcst:prob >10671 38:102195408:d=2016072600:RETOP:surface:6 hour fcst:prob >12195 # # VIP (VIL category, not actual VIL) at valid time # Probability of category >= 1, 2, 3, 4, 5 39:108149175:d=2016072600:VIL:surface:6 hour fcst:prob >=1 <99 40:114102942:d=2016072600:VIL:surface:6 hour fcst:prob >=2 <99 41:120056709:d=2016072600:VIL:surface:6 hour fcst:prob >=3 <99 42:126010476:d=2016072600:VIL:surface:6 hour fcst:prob >=4 <99 43:131964243:d=2016072600:VIL:surface:6 hour fcst:prob >=5 <99