Alert archive / Texas / Red Flag Warnings in 2017
Red Flag Warning 2, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this red flag warning at Jan 25, 2017, 3:24 AM CST for 7 counties in Texas. It took effect at Jan 25, 2017, 11:00 AM CST. It was in force for 5 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
- Jan 25, 2017, 3:24 AM CST (09:24 UTC)
- In effect from
- Jan 25, 2017, 11:00 AM CST
- Expired
- Jan 25, 2017, 4:00 PM CST
- In force
- 5 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Dimmit County, TX, Frio County, TX, Kinney County, TX, Maverick County, TX, Medina County, TX, Uvalde County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 60 km from the middle of the area, began a volume at 09:25 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, 9.4 hours before the alert went out and 114 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
- 3380 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
013 WWUS84 KEWX 250924 RFWEWX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 324 AM CST WED JAN 25 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING THROUGH 4 PM CST THIS AFTERNOON FOR PARTS OF THE RIO GRANDE PLAINS IN SOUTH CENTRAL TEXAS DUE TO LOW HUMIDITY WITH STRONG NORTHWEST WINDS... .LOW RELATIVE HUMIDITY VALUES AND GUSTY NORTH TO NORTHWEST WINDS BEHIND A DRY COLD FRONT WILL PRODUCE LOCALLY CRITICAL FIRE WEATHER CONDITIONS ACROSS PORTIONS OF THE RIO GRANDE PLAINS. 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 20 MPH WITH GUSTS TO NEAR 25 MPH THIS MORNING BEFORE BECOMING MORE NORTHERLY AS THEY WEAKEN 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 4 PM THIS AFTERNOON. TXZ202>204-217>219-228-252200- /O.NEW.KEWX.FW.W.0002.170125T1700Z-170125T2200Z/ KINNEY-UVALDE-MEDINA-MAVERICK-ZAVALA-FRIO-DIMMIT- 324 AM CST WED JAN 25 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CST THIS AFTERNOON FOR LOW HUMIDITY WITH STRONG NORTHWEST 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 4 PM CST THIS AFTERNOON. * AFFECTED AREA...PORTIONS OF THE RIO GRANDE PLAINS SOUTH AND WEST OF A LINE FROM DEL RIO TO HONDO TO DILLEY. * WIND...NORTH TO NORTHWEST 10 TO 20 MPH WITH GUSTS NEAR 25 MPH. * HUMIDITY...MINIMUM AFTERNOON HUMIDITY VALUES RANGING FROM 15 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.