Alert archive / Texas / Red Flag Warnings in 2021
Red Flag Warning 11, NWS Amarillo, TX
NWS Amarillo, TX issued this red flag warning at Apr 26, 2021, 2:56 PM CDT for 6 counties in Texas; Cimarron County, Texas County, Oklahoma. It took effect at Apr 27, 2021, 12:00 PM CDT. It was in force for 9 hr. 2 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
- Apr 26, 2021, 2:56 PM CDT (19:56 UTC)
- In effect from
- Apr 27, 2021, 12:00 PM CDT
- Expired
- Apr 27, 2021, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Amarillo, TX
Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Deaf Smith County, TX, Hartley County, TX, Moore County, TX, Oldham County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 101 km from the middle of the area, began a volume at 19:53 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 |
|---|---|---|---|
| Apr 27, 2:35 PM CDT | NON-TSTM WND GST 59 | 1 S Black Mesa Park, OK | OKLAHOMA MESONET STATION KENTON 5 SE. |
| Apr 27, 4:05 PM CDT | NON-TSTM WND GST 59 | 3 Sse Boise City, OK | OKLAHOMA MESONET STATION BOISE CITY. |
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 12:00Z, 7.9 hours before the alert went out and 101 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
- 3630 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
195 WWUS84 KAMA 261956 RFWAMA URGENT - FIRE WEATHER MESSAGE National Weather Service Amarillo TX 256 PM CDT Mon Apr 26 2021 OKZ001-002-TXZ001-002-006-007-011-016-270800- /O.NEW.KAMA.FW.W.0011.210427T1700Z-210428T0200Z/ /O.CON.KAMA.FW.W.0010.000000T0000Z-210427T0300Z/ Cimarron-Texas-Dallam-Sherman-Hartley-Moore-Oldham-Deaf Smith- 256 PM CDT Mon Apr 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN AND CENTRAL TEXAS PANHANDLE AS WELL AS THE OKLAHOMA PANHANDLE... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR WESTERN PORTIONS OF THE COMBINED PANHANDLES... The National Weather Service in Amarillo has issued a Red Flag Warning for strong winds and low relative humidity, which is in effect from noon to 9 PM CDT Tuesday. * Affected Area...In Oklahoma...Cimarron and Texas. In Texas... Dallam...Sherman...Hartley...Moore...Oldham and Deaf Smith. * 20 Foot Winds...Southwest 25 to 35 mph with gusts up to 55 mph. * Relative Humidity...As low as 6 percent. * Red Flag Threat Index...3 to 6 across western portions of the Panhandles. * Timing...Noon through 9 PM CDT. 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 create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. && $$ OKZ003-TXZ003-004-008-009-012>014-017>019-317-270300- /O.CON.KAMA.FW.W.0010.000000T0000Z-210427T0300Z/ Beaver-Hansford-Ochiltree-Hutchinson-Roberts-Potter-Carson-Gray- Randall-Armstrong-Donley-Palo Duro Canyon- 256 PM CDT Mon Apr 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN AND CENTRAL TEXAS PANHANDLE AS WELL AS THE OKLAHOMA PANHANDLE... * Affected Area...In Oklahoma...Beaver. In Texas...Hansford... Ochiltree...Hutchinson...Roberts...Potter...Carson...Gray... Randall...Armstrong...Donley and Palo Duro Canyon. * 20 Foot Winds...Southwest 20 to 30 mph with gusts up to 40 to 45 mph. * Relative Humidity...As low as 5 percent. * Red Flag Threat Index...4 to 7 eastern and central, 6 to 8 in the west. * Timing...Noon through 10 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures will create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. && $$ For more information from the National Weather Service visit... www.weather.gov/ama
4 follow-up statements
039 WWUS84 KAMA 270344 RFWAMA URGENT - FIRE WEATHER MESSAGE National Weather Service Amarillo TX 1044 PM CDT Mon Apr 26 2021 OKZ001-002-TXZ001-002-006-007-011-016-271200- /O.CON.KAMA.FW.W.0011.210427T1700Z-210428T0200Z/ Cimarron-Texas-Dallam-Sherman-Hartley-Moore-Oldham-Deaf Smith- 1044 PM CDT Mon Apr 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY VALUES FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AS WELL AS THE WESTERN TEXAS PANHANDLE... * Affected Area...In Oklahoma...Cimarron and Texas. In Texas... Dallam...Sherman...Hartley...Moore...Oldham and Deaf Smith. * 20 Foot Winds...Southwest 25 to 35 mph with gusts of 50 to 55 mph. * Relative Humidity...As low as 12 to 15 percent. * Red Flag Threat Index...3 to 6. * Timing...Noon through 9 PM CDT. 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 create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. && $$ For more information from the National Weather Service visit... www.weather.gov/ama
204 WWUS84 KAMA 270924 RFWAMA URGENT - FIRE WEATHER MESSAGE National Weather Service Amarillo TX 424 AM CDT Tue Apr 27 2021 OKZ001-002-TXZ001-002-006-007-011-016-272130- /O.CON.KAMA.FW.W.0011.210427T1700Z-210428T0200Z/ Cimarron-Texas-Dallam-Sherman-Hartley-Moore-Oldham-Deaf Smith- 424 AM CDT Tue Apr 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY VALUES FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AS WELL AS THE WESTERN TEXAS PANHANDLE... * Affected Area...In Oklahoma...Cimarron and Texas. In Texas... Dallam...Sherman...Hartley...Moore...Oldham and Deaf Smith. * 20 Foot Winds...Southwest 25 to 35 mph with gusts of 50 to 55 mph. * Relative Humidity...As low as 12 to 15 percent. * Red Flag Threat Index...3 to 5. * Timing...Noon through 9 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures will create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. && $$ For more information from the National Weather Service visit... www.weather.gov/ama
714 WWUS84 KAMA 271959 RFWAMA URGENT - FIRE WEATHER MESSAGE National Weather Service Amarillo TX 259 PM CDT Tue Apr 27 2021 OKZ001-002-TXZ001-002-006-007-011-016-280200- /O.CON.KAMA.FW.W.0011.000000T0000Z-210428T0200Z/ Cimarron-Texas-Dallam-Sherman-Hartley-Moore-Oldham-Deaf Smith- 259 PM CDT Tue Apr 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY VALUES FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AS WELL AS THE WESTERN TEXAS PANHANDLE... * Affected Area...In Oklahoma...Cimarron and Texas. In Texas... Dallam...Sherman...Hartley...Moore...Oldham and Deaf Smith. * 20 Foot Winds...Southwest 25 to 35 mph with gusts up to 55 mph. * Relative Humidity...As low as 12 percent. * Red Flag Threat Index...3 to 4 with isolated 5. * Timing...Noon through 9 PM CDT. 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 create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. && $$ For more information from the National Weather Service visit... www.weather.gov/ama
890 WWUS84 KAMA 280150 RFWAMA URGENT - FIRE WEATHER MESSAGE National Weather Service Amarillo TX 850 PM CDT Tue Apr 27 2021 OKZ001-002-TXZ001-002-006-007-011-016-280300- /O.EXP.KAMA.FW.W.0011.000000T0000Z-210428T0200Z/ Cimarron-Texas-Dallam-Sherman-Hartley-Moore-Oldham-Deaf Smith- 850 PM CDT Tue Apr 27 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY VALUES FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AS WELL AS THE WESTERN TEXAS PANHANDLE... The 20 foot southwesterly winds are diminishing this evening and relative humidity values are increasing after sunset. Therefore, critical fire weather conditions have ended by mid evening. $$ For more information from the National Weather Service visit... www.weather.gov/ama
Nearby
Red Flag Warnings in Texas, 2021Red Flag Warnings in Oklahoma, 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.