Alert archive / Texas / Red Flag Warnings in 2018
Red Flag Warning 1, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Mar 18, 2018, 2:55 PM CDT for 27 counties in Texas. It took effect at Mar 19, 2018, 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
- Mar 18, 2018, 2:55 PM CDT (19:55 UTC)
- In effect from
- Mar 19, 2018, 10:00 AM CDT
- Expired
- Mar 19, 2018, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Austin/San Antonio, TX
All 27 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 86 km from the middle of the area, began a volume at 19:54 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
Del Rio, TX (KDLF), launched 12:00Z, 7.9 hours before the alert went out and 190 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
- 7 J/kg
- Mixed-layer CIN
- -361 J/kg
- Mixed-layer LCL
- 2218 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- -80 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
199 WWUS84 KEWX 181955 RFWEWX URGENT - FIRE WEATHER MESSAGE National Weather Service Austin/San Antonio TX 255 PM CDT Sun Mar 18 2018 ...Critical Fire Weather Conditions Expected on Monday Morning Through Monday Evening across the western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions... Dry, gusty, and warm conditions will prevail on Monday behind a Pacific cold front. Relative humidity values will fall to very low values of 5 to 20 percent Monday afternoon. At the same time, northwest winds are forecast to be around 10 to 20 mph with occasional gusts to 25 to 30 mph. This will result in critical fire weather conditions for the western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions, especially when combined with ongoing drought conditions and dry fuels. The most likely areas to experience critical fire weather conditions will be near a Burnet to Hondo to Carrizo Springs line and west to the Rio Grande. Near critical to critical fire weather conditions are also expected in the eastern Hill Country, Austin and San Antonio metro areas, and portions of the Coastal Plains. The Red Flag Warning may need to be expanded farther east if confidence increases in wind speeds to trend higher. TXZ171-172-183>190-202>204-217>219-228-190400- /O.UPG.KEWX.FW.A.0001.180319T1500Z-180320T0000Z/ /O.NEW.KEWX.FW.W.0001.180319T1500Z-180320T0000Z/ Llano-Burnet-Val Verde-Edwards-Real-Kerr-Bandera-Gillespie- Kendall-Blanco-Kinney-Uvalde-Medina-Maverick-Zavala-Frio-Dimmit- 255 PM CDT Sun Mar 18 2018 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM CDT MONDAY FOR VERY DRY CONDITIONS AND GUSTY WINDS... The National Weather Service in Austin/San Antonio has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM CDT Monday. The Fire Weather Watch is no longer in effect. *AFFECTED AREA...Western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 10 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. 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 can contribute to extreme fire behavior. && $$ TXZ173-191>194-205>209-220-221-223-190400- /O.NEW.KEWX.FW.A.0002.180319T1500Z-180320T0000Z/ Williamson-Hays-Travis-Bastrop-Lee-Bexar-Comal-Guadalupe-Caldwell- Fayette-Atascosa-Wilson-Gonzales- 255 PM CDT Sun Mar 18 2018 ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... The National Weather Service in Austin/San Antonio has issued a Fire Weather Watch, which is in effect from Monday morning through Monday evening. * AFFECTED AREA...Eastern Hill Country, Austin and San Antonio Metro Areas, and portions of the Coastal Plains. * WIND...Northwest 10 to 15 mph with gusts to 25 mph. * HUMIDITY...10 to 20 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$
4 follow-up statements
412 WWUS84 KEWX 190139 RFWEWX URGENT - FIRE WEATHER MESSAGE National Weather Service Austin/San Antonio TX 839 PM CDT Sun Mar 18 2018 ...Critical Fire Weather Conditions Expected on Monday Morning Through Monday Evening across the western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions... Dry, gusty, and warm conditions will prevail on Monday behind a Pacific cold front. Relative humidity values will fall to very low values of 5 to 20 percent Monday afternoon. At the same time, northwest winds are forecast to be around 10 to 20 mph with occasional gusts to 25 to 30 mph. This will result in critical fire weather conditions for the western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions, especially when combined with ongoing drought conditions and dry fuels. The most likely areas to experience critical fire weather conditions will be near a Burnet to Hondo to Carrizo Springs line and west to the Rio Grande. Near critical to critical fire weather conditions are also expected in the eastern Hill Country, Austin and San Antonio metro areas, and portions of the Coastal Plains. The Red Flag Warning may need to be expanded farther east if confidence increases in wind speeds to trend higher. TXZ171-172-183>190-202>204-217>219-228-191200- /O.CON.KEWX.FW.W.0001.180319T1500Z-180320T0000Z/ Llano-Burnet-Val Verde-Edwards-Real-Kerr-Bandera-Gillespie- Kendall-Blanco-Kinney-Uvalde-Medina-Maverick-Zavala-Frio-Dimmit- 839 PM CDT Sun Mar 18 2018 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT MONDAY FOR VERY DRY CONDITIONS AND GUSTY WINDS... * AFFECTED AREA...Western Hill Country, Edwards Plateau, Rio Grande Plains, and Winter Garden regions. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 10 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. 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 can contribute to extreme fire behavior. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. && $$ TXZ173-191>194-205>209-220-221-223-191200- /O.CON.KEWX.FW.A.0002.180319T1500Z-180320T0000Z/ Williamson-Hays-Travis-Bastrop-Lee-Bexar-Comal-Guadalupe-Caldwell- Fayette-Atascosa-Wilson-Gonzales- 839 PM CDT Sun Mar 18 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... * AFFECTED AREA...Eastern Hill Country, Austin and San Antonio Metro Areas, and portions of the Coastal Plains. * WIND...Northwest 10 to 15 mph with gusts to 25 mph. * HUMIDITY...10 to 20 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. Listen for later forecasts and possible Red Flag Warnings && $$
374 WWUS84 KEWX 191044 RFWEWX URGENT - FIRE WEATHER MESSAGE National Weather Service Austin/San Antonio TX 544 AM CDT Mon Mar 19 2018 ...Red Flag Warning for Critical Fire Weather Conditions is in effect from 10 AM this morning until 7 PM this evening for counties along and west of the Interstate 35 corridor due to dry, warm and breezy conditions... Dry, gusty, and warm conditions are in store across the region today. Relative humidity values will fall to very low values of 5 to 15 percent this afternoon. At the same time, northwest winds are forecast to be around 10 to 20 mph with occasional gusts to 25 to 30 mph. This will result in critical fire weather conditions for counties along and west of the Interstate 35 corridor. The gusty winds are expected to subside around sunset. However, another cold front will move through tonight, shifting winds to a more northerly direction and keeping wind speeds elevated tonight. TXZ193-194-207>209-220-221-223-191145- /O.CAN.KEWX.FW.A.0002.180319T1500Z-180320T0000Z/ Bastrop-Lee-Guadalupe-Caldwell-Fayette-Atascosa-Wilson-Gonzales- 544 AM CDT Mon Mar 19 2018 ...FIRE WEATHER WATCH... The National Weather Service in Austin/San Antonio has cancelled the Fire Weather Watch. Counties east of the Interstate 35 corridor will see dry and breezy conditions this afternoon. However, conditions are not expected to reach critical thresholds. Residents are still urged to use caution today, especially involving any activities that may generate sparks. $$ TXZ173-191-192-205-206-200000- /O.UPG.KEWX.FW.A.0002.180319T1500Z-180320T0000Z/ /O.EXA.KEWX.FW.W.0001.180319T1500Z-180320T0000Z/ Williamson-Hays-Travis-Bexar-Comal- 544 AM CDT Mon Mar 19 2018 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... The National Weather Service in Austin/San Antonio has issued a Red Flag Warning, which is in effect from 10 AM this morning to 7 PM CDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Counties along and west of the Interstate 35 corridor. * WIND...Northwest 10 to 15 mph with gusts to 25 mph. * HUMIDITY...10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. Listen for later forecasts and possible Red Flag Warnings && PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ TXZ171-172-183>190-202>204-217>219-228-200000- /O.CON.KEWX.FW.W.0001.180319T1500Z-180320T0000Z/ Llano-Burnet-Val Verde-Edwards-Real-Kerr-Bandera-Gillespie- Kendall-Blanco-Kinney-Uvalde-Medina-Maverick-Zavala-Frio-Dimmit- 544 AM CDT Mon Mar 19 2018 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... * AFFECTED AREA...Counties along and west of the Interstate 35 corridor. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. 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 can contribute to extreme fire behavior. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. && $$
945 WWUS84 KEWX 191643 AAA RFWEWX URGENT - FIRE WEATHER MESSAGE...UPDATED National Weather Service Austin/San Antonio TX 1143 AM CDT Mon Mar 19 2018 ...Red Flag Warning for Critical Fire Weather Conditions is in effect now until 7 PM this evening for counties along and west of the Interstate 35 corridor due to dry, warm and breezy conditions... Dry, gusty winds, and warm conditions are in store across the region today. Relative humidity values will fall to very low values of 5 to 15 percent this afternoon. At the same time, northwest winds are forecast to be around 10 to 20 mph with occasional gusts to 25 to 30 mph. This will result in critical fire weather conditions for counties along and west of the Interstate 35 corridor. The gusty winds are expected to subside around sunset. However, another cold front will move through tonight, shifting winds to a more northerly direction and keeping wind speeds elevated overnight. TXZ171>173-183>192-202>206-217>219-228-200000- /O.CON.KEWX.FW.W.0001.000000T0000Z-180320T0000Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Kinney-Uvalde-Medina-Bexar- Comal-Maverick-Zavala-Frio-Dimmit- 1143 AM CDT Mon Mar 19 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... * AFFECTED AREA...Counties along and west of the Interstate 35 corridor. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. 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 can contribute to extreme fire behavior. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. && $$ Allen
561 WWUS84 KEWX 191853 AAA RFWEWX URGENT - FIRE WEATHER MESSAGE...UPDATED National Weather Service Austin/San Antonio TX 153 PM CDT Mon Mar 19 2018 ...Red Flag Warning for Critical Fire Weather Conditions is in effect now until 7 PM this evening for many portions of South- Central Texas... Low humidity, gusty winds, and warm conditions are in store across the region today. Relative humidity values will fall to very low values of 5 to 15 percent this afternoon. At the same time, northwest winds are forecast to be around 10 to 20 mph with occasional gusts to 20 to 30 mph. This will result in critical fire weather conditions. The gusty winds are expected to subside around sunset with improving conditions thereafter. TXZ193-207-208-220-221-200000- /O.EXA.KEWX.FW.W.0001.000000T0000Z-180320T0000Z/ Bastrop-Guadalupe-Caldwell-Atascosa-Wilson- 153 PM CDT Mon Mar 19 2018 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... The National Weather Service in Austin/San Antonio has issued a Red Flag Warning, which is in effect until 7 PM CDT this evening. * AFFECTED AREA...Counties along and west of the Interstate 35 corridor. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. 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 can contribute to extreme fire behavior. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. && $$ TXZ171>173-183>192-202>206-217>219-228-200000- /O.CON.KEWX.FW.W.0001.000000T0000Z-180320T0000Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Kinney-Uvalde-Medina-Bexar- Comal-Maverick-Zavala-Frio-Dimmit- 153 PM CDT Mon Mar 19 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR VERY DRY CONDITIONS AND GUSTY WINDS... * AFFECTED AREA...Counties along and west of the Interstate 35 corridor. * WIND...Northwest 15 to 20 mph with gusts to 30 mph. * HUMIDITY...5 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is strongly discouraged. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Outdoor burning is not recommended. Avoid outdoor activities that could inadvertently cause wildfires. Report wildfires quickly to the nearest fire department or law enforcement office. && $$ Allen
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:03 PM CDT | Special Weather Statement | EWX | Caldwell | 27 min |
| Mar 17, 7:26 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 49 min |
| Mar 17, 7:53 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 52 min |
| Mar 17, 8:42 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 33 min |
| Mar 17, 9:12 PM CDT | Special Weather Statement | EWX | Williamson | 48 min |
| Mar 17, 9:31 PM CDT | Special Weather Statement | EWX | Lee | 44 min |
| Mar 18, 2:55 PM CDT | Fire Weather Watch | EWX | Atascosa, Bastrop, Bexar, Caldwell, Comal, Fayette and 7 more | 15 hr |
| Mar 18, 4:02 PM CDT | Special Weather Statement | EWX | Lee | 43 min |
| Mar 18, 4:42 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 18 min |
| Mar 18, 5:29 PM CDT | Special Weather Statement | EWX | Lee | 46 min |
| Mar 18, 5:36 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 39 min |
| Mar 18, 5:53 PM CDT | Special Weather Statement | EWX | Lee | 52 min |
| Mar 18, 5:55 PM CDT | Special Weather Statement | EWX | Gonzales | 50 min |
| Mar 18, 6:03 PM CDT | Special Weather Statement | EWX | Bexar | 42 min |
| Mar 18, 6:07 PM CDT | Special Weather Statement | EWX | Gonzales | 53 min |
| Mar 18, 6:15 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Fayette, Gonzales | 45 min |
| Mar 18, 6:16 PM CDT | Special Weather Statement | EWX | Williamson | 29 min |
| Mar 18, 6:18 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Gonzales, Lavaca | 42 min |
| Mar 18, 6:22 PM CDT | Special Weather Statement | EWX | DeWitt | 38 min |
| Mar 18, 6:41 PM CDT | Special Weather Statement | EWX | DeWitt, Karnes | 49 min |
| Mar 18, 6:48 PM CDT | Special Weather Statement | EWX | Guadalupe | 42 min |
| Mar 18, 6:53 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Fayette, Lee | 52 min |
Nearby
Red Flag Warnings in Texas, 2018Every red flag warning in 2018
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.