Alert archive / Texas / Red Flag Warnings in 2011
Red Flag Warning 49, NWS Amarillo, TX
NWS Amarillo, TX issued this red flag warning at Jun 29, 2011, 3:07 PM CDT for 4 counties in Texas; Cimarron County, Texas County, Oklahoma. It was in force for 6 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
- Jun 29, 2011, 3:07 PM CDT (20:07 UTC)
- Expired
- Jun 29, 2011, 9:21 PM CDT
- In force
- 6 hr
- Issued by
- NWS Amarillo, TX
Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Hartley County, TX, Moore County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 124 km from the middle of the area, began a volume at 20:08 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.1 hours before the alert went out and 125 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
- 42 J/kg
- Mixed-layer CIN
- -555 J/kg
- Mixed-layer LCL
- 2728 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -100 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
924 WWUS84 KAMA 292007 RFWAMA URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AMARILLO TX 307 PM CDT WED JUN 29 2011 OKZ001-002-TXZ001-002-006-007-300300- /O.NEW.KAMA.FW.W.0049.110629T2007Z-110630T0300Z/ CIMARRON-TEXAS-DALLAM-SHERMAN-HARTLEY-MOORE- 307 PM CDT WED JUN 29 2011 ...RED FLAG WARNING IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR WESTERN AND CENTRAL OKLAHOMA PANHANDLE AND NORTHWESTERN TEXAS PANHANDLE... THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 10 PM CDT THIS EVENING DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AND NORTHWESTERN TEXAS PANHANDLE. * AFFECTED AREA: IN OKLAHOMA...CIMARRON...TEXAS. IN TEXAS... DALLAM...SHERMAN...HARTLEY...MOORE. * WIND: WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH ARE EXPECTED THROUGH THIS EVENING. * HUMIDITY: RELATIVE HUMIDITY VALUES WILL REMAIN NEAR OR BELOW 15 PERCENT. * TIMING: WINDS SHOULD DIMINISH AND RELATIVE HUMIDITY VALUES SHOULD INCREASE SHORTLY AFTER SUNSET THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... RELATIVE HUMIDITIES OF 15 PERCENT OR LESS...SUSTAINED 20 FOOT WINDS OF 20 MPH OR GREATER...AND AN ELEVATED FIRE DANGER RATING WILL CREATE RED FLAG CONDITIONS. && $$ JOHNSON FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT... HTTP://WWW.SRH.NOAA.GOV/AMA
1 follow-up statement
803 WWUS84 KAMA 300221 RFWAMA URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AMARILLO TX 921 PM CDT WED JUN 29 2011 OKZ001-002-TXZ001-002-006-007-300330- /O.CAN.KAMA.FW.W.0049.000000T0000Z-110630T0300Z/ CIMARRON-TEXAS-DALLAM-SHERMAN-HARTLEY-MOORE- 921 PM CDT WED JUN 29 2011 ...RED FLAG WARNING IS CANCELLED FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AND THE NORTHWESTERN TEXAS PANHANDLE... THE NATIONAL WEATHER SERVICE IN AMARILLO HAS CANCELLED THE RED FLAG WARNING FOR THE WESTERN AND CENTRAL OKLAHOMA PANHANDLE AND THE NORTHWESTERN TEXAS PANHANDLE. * AFFECTED AREA: IN OKLAHOMA...CIMARRON...TEXAS. IN TEXAS... DALLAM...SHERMAN...HARTLEY...MOORE. * REASONING: WIND SPEEDS HAVE DECREASED BELOW 20 MPH AND RELATIVE HUMIDITIES WILL CONTINUE TO INCREASE THIS EVENING. $$ KB FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT... HTTP://WWW.SRH.NOAA.GOV/AMA
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 11:19 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb, Ochiltree | 56 min |
| Jun 28, 9:50 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 55 min |
| Jun 28, 10:38 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 67 min |
Nearby
Red Flag Warnings in Texas, 2011Red Flag Warnings in Oklahoma, 2011Every red flag warning in 2011
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.