Alert archive / Oklahoma / Red Flag Warnings in 2021
Red Flag Warning 9, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Dec 14, 2021, 3:17 AM CST for 15 counties in Oklahoma; Hardeman County, Texas. It took effect at Dec 15, 2021, 9:00 AM CST. It was in force for 9 hr. 18 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 14, 2021, 3:17 AM CST (09:17 UTC)
- In effect from
- Dec 15, 2021, 9:00 AM CST
- Expired
- Dec 15, 2021, 6:00 PM CST
- In force
- 9 hr
- Issued by
- NWS Norman, OK
Counties Alfalfa County, OK, Beckham County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Hardeman County, TX
The radar
The Altus AFB radar (KFDR), 147 km from the middle of the area, began a volume at 09:16 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 15, 10:10 AM CST | NON-TSTM WND GST 60 | 1 Ssw Cherokee, OK | |
| Dec 15, 10:20 AM CST | NON-TSTM WND GST 58 | 3 Ssw Freedom, OK | |
| Dec 15, 11:27 AM CST | NON-TSTM WND GST 60 | 1 Ssw Gage, OK | ASOS STATION KGAG GAGE. |
| Dec 15, 11:35 AM CST | TSTM WND GST 63 | 2 S Alva, OK | |
| Dec 15, 11:55 AM CST | NON-TSTM WND GST 64 | 2 S Alva, OK | AWOS STATION KAVK ALVA. |
| Dec 15, 12:40 PM CST | NON-TSTM WND GST 60 | 3 Wnw Hopeton, OK | |
| Dec 15, 1:05 PM CST | NON-TSTM WND GST 60 | 1 W Fairview, OK | |
| Dec 15, 1:10 PM CST | NON-TSTM WND GST 58 | 1 Sw Buffalo, OK | |
| Dec 15, 1:35 PM CST | NON-TSTM WND GST 66 | 1 Ssw Gage, OK | ASOS STATION KGAG GAGE. |
| Dec 15, 1:50 PM CST | NON-TSTM WND GST 63 | 13 Nne Camp Houston, OK | MESONET STATION MAYR MAY RANCH. |
| Dec 15, 1:55 PM CST | NON-TSTM WND GST 69 | 1 Sw Buffalo, OK | |
| Dec 15, 2:05 PM CST | NON-TSTM WND GST 58 | 1 Wsw Lahoma, OK | |
| Dec 15, 2:05 PM CST | NON-TSTM WND GST 64 | 3 Ssw Freedom, OK | |
| Dec 15, 2:10 PM CST | NON-TSTM WND GST 58 | 4 Wnw Camargo, OK | |
| Dec 15, 2:10 PM CST | NON-TSTM WND GST 71 | 1 Sw Buffalo, OK | |
| Dec 15, 2:15 PM CST | NON-TSTM WND GST 77 | 1 Sw Buffalo, OK | |
| Dec 15, 2:25 PM CST | NON-TSTM WND GST 66 | 3 Ssw Freedom, OK | |
| Dec 15, 3:05 PM CST | NON-TSTM WND GST 69 | 16 Nne Freedom, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 9.3 hours before the alert went out and 225 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
- 3763 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
077 WWUS84 KOUN 140917 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 317 AM CST Tue Dec 14 2021 ...Very windy, warm, and dry conditions expected Wednesday... .An upper level storm system will move into the Central Plains Wednesday bringing strong southwest winds with it. Many locations may experience wind gusts over 45 mph by Wednesday afternoon, with stronger gusts perhaps exceeding 60 mph across across far northwestern Oklahoma. Well above average temperatures and minimum relative humidity in the mid teens will also be present, resulting in critical to extreme fire weather conditions. OKZ004-142300- /O.UPG.KOUN.FW.A.0007.211215T1500Z-211216T0000Z/ /O.NEW.KOUN.FW.W.0009.211215T1500Z-211216T0000Z/ Harper- 317 AM CST Tue Dec 14 2021 ...RED FLAG WARNING IN EFFECT FROM 9 AM TO 6 PM CST WEDNESDAY FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND DRY FUELS FOR HARPER COUNTY... The National Weather Service in Norman has issued a Red Flag Warning for strong winds, low relative humidity, and dry fuels which is in effect from 9 AM to 6 PM CST Wednesday. * TIMING...Late morning through early evening. * WINDS...Southwest 30 to 40 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Upper 70s. * IMPACTS...Any fires that start in this environment will become very difficult to control. 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, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$ OKZ005-006-009>011-014>016-021-022-033>036-TXZ083-142300- /O.CON.KOUN.FW.A.0007.211215T1500Z-211216T0000Z/ Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey-Custer- Beckham-Washita-Harmon-Greer-Kiowa-Jackson-Hardeman- 317 AM CST Tue Dec 14 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND DRY FUELS FOR WESTERN AND NORTHWESTERN OKLAHOMA AND HARDEMAN COUNTY TEXAS... * TIMING...Late morning through early evening. * WINDS...Southwest 30 to 40 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 18 percent. * TEMPERATURES...Upper 70s. * IMPACTS...Any fires that start in this environment will become very difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ Mahale
3 follow-up statements
016 WWUS84 KOUN 142124 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 324 PM CST Tue Dec 14 2021 ...Very windy, warm, and dry conditions expected Wednesday... .An upper level storm system will move into the Central Plains Wednesday, bringing strong southwest winds with it. Many locations may experience wind gusts over 45 mph by Wednesday afternoon, with stronger gusts perhaps exceeding 60 mph across across far northwestern Oklahoma. Well above average temperatures and minimum relative humidity in the mid teens percent will also be present, resulting in Critical to Extreme fire weather conditions. OKZ004-150530- /O.CON.KOUN.FW.W.0009.211215T1500Z-211216T0000Z/ Harper- 324 PM CST Tue Dec 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 6 PM CST WEDNESDAY FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND DRY FUELS FOR HARPER COUNTY... * TIMING...Late morning through early evening. * WINDS...Southwest 35 to 45 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Mid to upper 70s. * IMPACTS...Any fires that start in this environment will become very difficult to control very quickly. 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, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$ OKZ005-006-009>011-014>016-021-022-033>036-TXZ083-150530- /O.CON.KOUN.FW.A.0007.211215T1500Z-211216T0000Z/ Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey-Custer- Beckham-Washita-Harmon-Greer-Kiowa-Jackson-Hardeman- 324 PM CST Tue Dec 14 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND DRY FUELS FOR WESTERN AND NORTHWESTERN OKLAHOMA AND HARDEMAN COUNTY TEXAS... * TIMING...Late morning through early evening. * WINDS...Southwest 30 to 40 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Mid 70s to lower 80s. * IMPACTS...Any fires that start in this environment will become very difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
494 WWUS84 KOUN 150832 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 232 AM CST Wed Dec 15 2021 ...Very windy, warm, and dry conditions expected today... .An upper level storm system will move into the Central Plains today, bringing strong southwest winds with it. Many locations may experience wind gusts over 45 mph by this afternoon, with stronger gusts perhaps briefly exceeding 70 mph across far northwestern Oklahoma. Well above average temperatures and minimum relative humidity in the low teens will also be present, resulting in Critical to Extreme fire weather conditions. OKZ005-006-009>011-014>016-021-022-033>036-TXZ083-152045- /O.UPG.KOUN.FW.A.0007.211215T1500Z-211216T0000Z/ /O.EXA.KOUN.FW.W.0009.211215T1500Z-211216T0000Z/ Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey-Custer- Beckham-Washita-Harmon-Greer-Kiowa-Jackson-Hardeman- 232 AM CST Wed Dec 15 2021 ...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST THIS EVENING FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES FOR MOST OF WESTERN OKLAHOMA AND HARDEMAN COUNTY TEXAS... * TIMING...Late morning through early evening. * WINDS...Southwest 30 to 40 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 13 percent. * TEMPERATURES...Mid 70s to lower 80s. * IMPACTS...Any fires that start in this environment will become very difficult to control. 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, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$ OKZ004-152045- /O.CON.KOUN.FW.W.0009.211215T1500Z-211216T0000Z/ Harper- 232 AM CST Wed Dec 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST THIS EVENING FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES FOR HARPER COUNTY... * TIMING...Late morning through early evening. * WINDS...Southwest 35 to 45 mph with gusts up to 70 mph. * RELATIVE HUMIDITY...As low as 9 percent. * TEMPERATURES...Mid to upper 70s. * IMPACTS...Any fires that start in this environment will become very difficult to control very quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$
714 WWUS84 KOUN 152123 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 323 PM CST Wed Dec 15 2021 ...Very windy, warm, and dry conditions expected until early evening... .An upper level storm system over the Central Plains today, will continue to bring strong southwest winds with it until after sunset. The strongest gusts will briefly exceed 70 mph across far northwestern Oklahoma. Well above average temperatures and minimum relative humidity in the low teens will also be present, resulting in Critical to Extreme fire weather conditions. These conditions will improve rapidly after sunset. OKZ004>006-009>011-014>016-021-022-033>036-TXZ083-160000- /O.CON.KOUN.FW.W.0009.000000T0000Z-211216T0000Z/ Harper-Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey- Custer-Beckham-Washita-Harmon-Greer-Kiowa-Jackson-Hardeman- 323 PM CST Wed Dec 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING FOR STRONG WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES FOR MOST OF WESTERN OKLAHOMA AND HARDEMAN COUNTY TEXAS... * TIMING...Late morning through early evening. * WINDS...Southwest 35 to 45 mph with gusts up to 70 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Mid 70s to lower 80s. * IMPACTS...Any fires that start in this environment will become extremely difficult to control. 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, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 3:19 AM CST | High Wind Warning | OUN | Alfalfa, Ellis, Harper, Major, Woods, Woodward | 39 hr |
| Dec 14, 8:39 AM CST | Dense Fog Advisory | OUN | Bryan, Carter, Comanche, Cotton, Garvin, Jefferson and 6 more | 2 hr |
| Dec 14, 3:21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.