Alert archive / Texas / Red Flag Warnings in 2021
Red Flag Warning 3, NWS Brownsville, TX
NWS Brownsville, TX issued this red flag warning at Oct 26, 2021, 3:05 PM CDT for 8 counties in Texas. It took effect at Oct 27, 2021, 10:00 AM CDT. It was in force for 9 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
- Oct 26, 2021, 3:05 PM CDT (20:05 UTC)
- In effect from
- Oct 27, 2021, 10:00 AM CDT
- Expired
- Oct 27, 2021, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Brownsville, TX
Counties Brooks County, TX, Cameron County, TX, Hidalgo County, TX, Jim Hogg County, TX, Kenedy County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX
The radar
The Brownsville radar (KBRO), 118 km from the middle of the area, began a volume at 20:06 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
Brownsville Intl, TX (KBRO), launched 12:00Z, 8.1 hours before the alert went out and 120 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
- 1090 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
The text
As transmitted.
511 WWUS84 KBRO 262005 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 305 PM CDT Tue Oct 26 2021 ...Rapid Growth and Spread of Wildfires Expected on Wednesday.... .A dry, cold front will move through Deep South Texas late Wednesday morning. Strong north to northwest winds will develop behind the front as relative humidity percentages drop into the teens by evening Wednesday. Rapid spread and growth of any wildfire that are sparked can be expected with very dry and abundant fuels. Drought conditions are ongoing or worsening across Zapata, Jim Hogg, and Starr counties. TXZ248>257-351-353-270415- /O.UPG.KBRO.FW.A.0003.211027T1500Z-211028T0300Z/ /O.NEW.KBRO.FW.W.0003.211027T1500Z-211028T0000Z/ Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo- Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron- Coastal Kenedy-Northern Hidalgo- 305 PM CDT Tue Oct 26 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM CDT WEDNESDAY FOR LOW HUMIDITY AND STRONG NORTHERLY WINDS FOR FIRE WEATHER ZONES 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353... The National Weather Service in Brownsville has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM CDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353. * WIND...Northwest 15 to 25 mph gusts near 35 mph. * HUMIDITY...10 to 20 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
2 follow-up statements
583 WWUS84 KBRO 270751 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 251 AM CDT Wed Oct 27 2021 ...Rapid Growth and Spread of Wildfires Expected on Wednesday.... .A dry cold front will move through Deep South Texas late this morning. Strong north to northwest winds will develop behind the front as relative humidity percentages drop into the teens by this afternoon. Rapid spread and growth of any wildfires that are sparked can be expected with very dry and abundant fuels. Drought conditions are ongoing or worsening across Zapata, Jim Hogg, and Starr counties. TXZ248>257-351-353-271800- /O.CON.KBRO.FW.W.0003.211027T1500Z-211028T0000Z/ Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo- Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron- Coastal Kenedy-Northern Hidalgo- 251 AM CDT Wed Oct 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING FOR LOW HUMIDITY AND STRONG NORTHERLY WINDS FOR FIRE WEATHER ZONES 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353... * AFFECTED AREA...Fire weather zones 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353. * WIND...Northwest 15 to 25 mph gusts near 35 mph. * HUMIDITY...10 to 20 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
621 WWUS84 KBRO 271657 RFWBRO URGENT - FIRE WEATHER MESSAGE National Weather Service Brownsville TX 1157 AM CDT Wed Oct 27 2021 ...Rapid Growth and Spread of Wildfires Expected This Afternoon.... .Strong north to northwest winds will persist behind this morning's cold front as relative humidity percentages drop into the teens by this afternoon. Rapid spread and growth of any wildfires that are sparked can be expected with very dry and abundant fuels. Drought conditions are ongoing or worsening for Zapata, Jim Hogg, and Starr counties. TXZ248>257-351-353-280000- /O.CON.KBRO.FW.W.0003.000000T0000Z-211028T0000Z/ Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo- Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron- Coastal Kenedy-Northern Hidalgo- 1157 AM CDT Wed Oct 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR STRONG NORTHERLY WINDS AND LOW RELATIVE HUMIDITY VALUES FOR FIRE WEATHER ZONES 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353... * AFFECTED AREA...Fire weather zones 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 351, AND 353. * TIMING...Now through 7 PM this evening. * WIND...Northwest 15 to 25 mph gusts near 35 mph. * HUMIDITY...10 to 20 percent this afternoon. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means critical fire weather conditions are occurring now...or will shortly. In general...these conditions include sustained 20 foot winds of 25 MPH or greater...humidity ranging from below 25 percent in Zapata County to below 45 percent along the coast...each lasting for 2 hours or longer... and cured fuels. Humidity below 25 percent in most areas will trigger fire danger at lower wind speeds. Detailed decision tables are found at HTTP://WEATHER.GOV/RGV/?N=MAPCOLORS#FIRE. && $$
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 3:34 AM CDT | Small Craft Advisory | BRO | 4 days |
Nearby
Red 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.