Alert archive / Oklahoma / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Jan 14, 2021, 2:33 PM CST for 7 counties in Oklahoma; Hardeman County, Wichita County, Wilbarger County, Texas. It took effect at Jan 15, 2021, 6:00 AM CST. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 14, 2021, 2:33 PM CST (20:33 UTC)
- In effect from
- Jan 15, 2021, 6:00 AM CST
- Expired
- Jan 15, 2021, 6:00 PM CST
- In force
- 12 hr
- Issued by
- NWS Norman, OK
Counties Comanche County, OK, Cotton County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Hardeman County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 19 km from the middle of the area, began a volume at 20:39 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 8.6 hours before the alert went out and 177 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2862 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
560 WWUS84 KOUN 142033 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 233 PM CST Thu Jan 14 2021 ...RED FLAG WARNING FRIDAY... .Very strong winds and low humidity will result in the potential for dangerous grass fires during the day Friday, despite recent rain/snowfall and relatively cool conditions. OKZ033>038-044-TXZ083-085-086-151115- /O.NEW.KOUN.FW.W.0001.210115T1200Z-210116T0000Z/ Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Cotton-Hardeman- Wilbarger-Wichita- 233 PM CST Thu Jan 14 2021 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 6 PM CST FRIDAY FOR BREEZY WINDS AND LOW RELATIVE HUMIDITY FOR PARTS OF SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS... The National Weather Service in Norman has issued a Red Flag Warning for breezy winds and low relative humidity, which is in effect from 6 AM to 6 PM CST Friday. * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The strong winds and dry conditions will cause difficulty in controlling fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds and low relative humidity will contribute to the potential for extreme fire behavior. && $$
4 follow-up statements
781 WWUS84 KOUN 150940 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 340 AM CST Fri Jan 15 2021 ...RED FLAG WARNING FRIDAY... .Very strong winds and low humidity will result in the potential for dangerous grass fires during the day Friday, despite recent rain/snowfall and relatively cool conditions. OKZ033>038-044-TXZ083-085-086-151745- /O.CON.KOUN.FW.W.0001.210115T1200Z-210116T0000Z/ Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Cotton-Hardeman- Wilbarger-Wichita- 340 AM CST Fri Jan 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR DRY AND WINDY WEATHER FOR PORTIONS OF SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS... * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The strong winds and dry conditions will cause difficulty in controlling fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds and low relative humidity will contribute to the potential for extreme fire behavior. && $$
944 WWUS84 KOUN 151621 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 1021 AM CST Fri Jan 15 2021 ...RED FLAG WARNING FRIDAY... .Very strong winds and low humidity will result in the potential for dangerous grass fires during the day Friday, despite recent precipitation and relatively cool conditions. OKZ033>038-044-TXZ083-085-086-160000- /O.CON.KOUN.FW.W.0001.000000T0000Z-210116T0000Z/ Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Cotton-Hardeman- Wilbarger-Wichita- 1021 AM CST Fri Jan 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR DRY AND WINDY WEATHER FOR PORTIONS OF SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS... * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The strong winds and dry conditions will cause difficulty in controlling fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds and low relative humidity will contribute to the potential for extreme fire behavior. && $$
199 WWUS84 KOUN 152026 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 226 PM CST Fri Jan 15 2021 ...RED FLAG WARNING FRIDAY... .Very strong winds and low humidity will result in the potential for dangerous grass fires during the day Friday, despite recent precipitation and relatively cool conditions. OKZ033>038-044-TXZ083-085-086-160000- /O.CON.KOUN.FW.W.0001.000000T0000Z-210116T0000Z/ Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Cotton-Hardeman- Wilbarger-Wichita- 226 PM CST Fri Jan 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR DRY AND WINDY WEATHER FOR PORTIONS OF SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS... * WINDS...Northwest 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...The strong winds and dry conditions will cause difficulty in controlling fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds and low relative humidity will contribute to the potential for extreme fire behavior. && $$
773 WWUS84 KOUN 160002 AAA RFWOUN URGENT - FIRE WEATHER MESSAGE...UPDATED National Weather Service Norman OK 602 PM CST Fri Jan 15 2021 OKZ033>038-044-TXZ083-085-086-160115- /O.EXP.KOUN.FW.W.0001.000000T0000Z-210116T0000Z/ Harmon-Greer-Kiowa-Jackson-Tillman-Comanche-Cotton-Hardeman- Wilbarger-Wichita- 602 PM CST Fri Jan 15 2021 ...RED FLAG WARNING FOR ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS IN SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS EXPIRED AT 6 PM CST THIS EVENING... Winds have decreased, minimizing fire weather concerns. $$
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 14, 3:00 PM CST | High Wind Watch | OUN | Beckham, Custer, Dewey, Greer, Harmon, Jackson and 3 more | 13 hr |
| Jan 14, 3:00 PM CST | High Wind Warning | OUN | Ellis, Harper, Woods, Woodward | 27 hr |
| Jan 14, 3:00 PM CST | Wind Advisory | OUN | Alfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 38 more | 27 hr |
Nearby
Red Flag Warnings in Oklahoma, 2021Red Flag Warnings in Texas, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.