Alert archive / Texas / Red Flag Warnings in 2017
Red Flag Warning 3, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Feb 24, 2017, 4:19 AM CST for 10 counties in Texas. It took effect at Feb 24, 2017, 11:00 AM CST. 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
- Feb 24, 2017, 4:19 AM CST (10:19 UTC)
- In effect from
- Feb 24, 2017, 11:00 AM CST
- Expired
- Feb 24, 2017, 5:00 PM CST
- In force
- 6 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Dimmit County, TX, Edwards County, TX, Frio County, TX, Kinney County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 32 km from the middle of the area, began a volume at 10:18 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 00:00Z, 10.3 hours before the alert went out and 87 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
- 3908 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
684 WWUS84 KEWX 241019 RFWEWX URGENT - FIRE WEATHER MESSAGE National Weather Service Austin/San Antonio TX 419 AM CST Fri Feb 24 2017 ...Red Flag Warning is in effect from 11 am through 5 pm CST this afternoon for parts of the Rio Grande Plains and Edwards Plateau due to low humidity with strong northwest to north winds... .Low relative humidity values and strong northwest to north winds behind a dry line and cold front will produce critical fire weather conditions across portions of the Rio Grande Plains and Edwards Plateau late this morning into the afternoon hours. Rapid fire growth and spread will likely occur in cured fuels...such as dry grasses. Winds will initially be out of the northwest at 10 to 15 mph and rapidly increasing around noon at 15 to 20 mph with gusts up to 25 mph this afternoon. Relative humidity values should fall below 20 percent late this morning and remain below those levels until around sunset...but winds should weaken to help decrease fire spread concerns by 5 pm this afternoon. TXZ183>185-202>204-217>219-228-242300- /O.NEW.KEWX.FW.W.0003.170224T1700Z-170224T2300Z/ Val Verde-Edwards-Real-Kinney-Uvalde-Medina-Maverick-Zavala-Frio- Dimmit- 419 AM CST Fri Feb 24 2017 ...Red Flag Warning in effect from 11 am to 5 pm cst this afternoon for low humidity with strong northwest to north winds... The National Weather Service in Austin/San Antonio has issued a Red Flag Warning, which is in effect from 11 AM this morning to 5 PM CST this afternoon. * AFFECTED AREA...Portions of the Rio Grande Plains and Edwards Plateau. * WIND...Winds will initially be out of the northwest at 10 to 15 mph and rapidly increasing at noon today 15 to 20 mph with gusts up to 25 mph this afternoon. * HUMIDITY...Minimum afternoon humidity values ranging from 7 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 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. && $$
Nearby
Red Flag Warnings in Texas, 2017Every red flag warning in 2017
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.