Alert archive / Oklahoma / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Mar 29, 2021, 3:48 AM CDT for 30 counties in Oklahoma; 5 counties in Texas. It took effect at Mar 29, 2021, 11:00 AM CDT. It was in force for 9 hr. 4 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
- Mar 29, 2021, 3:48 AM CDT (08:48 UTC)
- In effect from
- Mar 29, 2021, 11:00 AM CDT
- Expired
- Mar 29, 2021, 8:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Norman, OK
All 35 counties
Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wilbarger County, TX
The radar
The Norman radar (KTLX), 126 km from the middle of the area, began a volume at 08:52 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 |
|---|---|---|---|
| Mar 29, 11:30 AM CDT | NON-TSTM WND GST 57 | 16 Nne Freedom, OK | |
| Mar 29, 1:35 PM CDT | NON-TSTM WND GST 62 | 13 Nne Camp Houston, OK | FREEDOM SITE. |
| Mar 29, 3:50 PM CDT | NON-TSTM WND GST 58 | 16 Nne Freedom, OK | |
| Mar 29, 4:15 PM CDT | NON-TSTM WND GST 60 | 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
Norman, OK (KOUN), launched 00:00Z, 8.8 hours before the alert went out and 118 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
- 2695 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
224 WWUS84 KOUN 290848 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 348 AM CDT Mon Mar 29 2021 OKZ004>022-033>036-291700- /O.UPG.KOUN.FW.A.0002.210329T1600Z-210330T0100Z/ /O.NEW.KOUN.FW.W.0003.210329T1600Z-210330T0100Z/ Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Harmon-Greer-Kiowa-Jackson- 348 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR WARM, WINDY AND DRY CONDITIONS FOR NORTHERN, WESTERN AND PORTIONS OF CENTRAL OKLAHOMA, AND PORTIONS OF WESTERN NORTH TEXAS... The National Weather Service in Norman has issued a Red Flag Warning for warm temperatures, strong winds and low humidity, which is in effect from 11 AM this morning to 8 PM CDT this evening. The Fire Weather Watch is no longer in effect. * TIMING...From 11 AM to 8 PM. * WINDS...South 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Minimum humidity between 13 to 20 percent in western Oklahoma and western north Texas, and between 20 and 25 percent across central and north central Oklahoma. * TEMPERATURES...High temperatures between 75 and 84. * IMPACTS...Any fires that start in this environment will be 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. && $$ OKZ023>027-037-038-TXZ083>085-087-088-291700- /O.NEW.KOUN.FW.W.0003.210329T1600Z-210330T0100Z/ Caddo-Canadian-Oklahoma-Lincoln-Grady-Tillman-Comanche-Hardeman- Foard-Wilbarger-Knox-Baylor- 348 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING FOR WARM, WINDY AND DRY CONDITIONS FOR NORTHERN, WESTERN AND PORTIONS OF CENTRAL OKLAHOMA, AND PORTIONS OF WESTERN NORTH TEXAS... The National Weather Service in Norman has issued a Red Flag Warning for warm temperatures, strong winds and low humidity, which is in effect from 11 AM this morning to 8 PM CDT this evening. * TIMING...From 11 AM to 8 PM. * WINDS...South 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Minimum humidity between 13 to 20 percent in western Oklahoma and western north Texas, and between 20 and 25 percent across central and north central Oklahoma. * TEMPERATURES...High temperatures between 75 and 84. * IMPACTS...Any fires that start in this environment will be very difficult to control. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. && $$ ..speg.
2 follow-up statements
177 WWUS84 KOUN 291647 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 1147 AM CDT Mon Mar 29 2021 OKZ004>027-033>038-TXZ083>085-087-088-300100- /O.CON.KOUN.FW.W.0003.000000T0000Z-210330T0100Z/ Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-Harmon- Greer-Kiowa-Jackson-Tillman-Comanche-Hardeman-Foard-Wilbarger- Knox-Baylor- 1147 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR WARM, WINDY AND DRY CONDITIONS FOR NORTHERN, WESTERN AND PORTIONS OF CENTRAL OKLAHOMA, AND PORTIONS OF WESTERN NORTH TEXAS... * TIMING...Through 8 PM. * WINDS...South 25 to 35 mph with gusts of 40 to 55 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Up to 84. * IMPACTS...Any fires that start in this environment will be 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. && $$
950 WWUS84 KOUN 300053 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 753 PM CDT Mon Mar 29 2021 OKZ004>027-033>038-TXZ083>085-087-088-300200- /O.EXP.KOUN.FW.W.0003.000000T0000Z-210330T0100Z/ Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-Harmon- Greer-Kiowa-Jackson-Tillman-Comanche-Hardeman-Foard-Wilbarger- Knox-Baylor- 753 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING... Although breezy south winds will remain present this evening, relative humidity will increase above 20 percent area wide very soon. Therefore, the Red Flag Warning will be allowed to expire. $$
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.