Alert archive / Texas / Red Flag Warnings in 2021

Red Flag Warning 2, NWS San Angelo, TX

April 9, 202114 counties in Texas

NWS San Angelo, TX issued this red flag warning at Apr 9, 2021, 4:00 AM CDT for 14 counties in Texas. It took effect at Apr 9, 2021, 12:00 PM CDT. It was in force for 7 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
Apr 9, 2021, 4:00 AM CDT (09:00 UTC)
In effect from
Apr 9, 2021, 12:00 PM CDT
Expired
Apr 9, 2021, 7:00 PM CDT
In force
7 hr
Issued by
NWS San Angelo, TX

Counties Coke County, TX, Concho County, TX, Crockett County, TX, Fisher County, TX, Irion County, TX, Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Nolan County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 19 km from the middle of the area, began a volume at 09:03 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

Midland Regional, TX (KMAF), launched 00:00Z, 9.0 hours before the alert went out and 193 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.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2021-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2021-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4838 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

586 
WWUS84 KSJT 090900
RFWSJT

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Angelo TX
400 AM CDT Fri Apr 9 2021

...Near Critical to Critical Fire Weather Conditions Today...

.Warm, dry and windy conditions are expected this afternoon and
early evening across the Concho Valley, Edwards Plateau and 
western portions of the Big Country. These conditions, combined 
with dry fuels, will result in Near Critical to Critical Fire 
Weather concerns.

TXZ064-065-071>073-076>078-154-168>170-091700-
/O.UPG.KSJT.FW.A.0001.210409T1700Z-210410T0000Z/
/O.NEW.KSJT.FW.W.0002.210409T1700Z-210410T0000Z/
Sterling-Coke-Irion-Tom Green-Concho-Crockett-Schleicher-Sutton-
McCulloch-Menard-Kimble-Mason-
400 AM CDT Fri Apr 9 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING FOR WARM, DRY, AND WINDY CONDITIONS FOR FIRE WEATHER 
ZONES 064, 065, 071, 072, 073, 076, 077, 078, 154, 168, 169, AND 
170...

The National Weather Service in San Angelo has issued a Red Flag
Warning, which is in effect from noon today to 7 PM CDT this
evening. The Fire Weather Watch is no longer in effect. 

* Wind...West winds 15 to 20 mph, with higher gusts expected

* Humidity...5 to 10 percent

* Fuels...Dry

* Impacts...ANY FIRES THAT DEVELOP CAN SPREAD RAPIDLY. OUTDOOR 
  BURNING IS DISCOURAGED.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now or will occur shortly. A combination of
strong winds, low humidity and dry fuels will contribute to
extreme fire behavior.

&&

$$

TXZ049-054-091700-
/O.NEW.KSJT.FW.W.0002.210409T1700Z-210410T0000Z/
Fisher-Nolan-
400 AM CDT Fri Apr 9 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING FOR WARM, DRY, AND WINDY CONDITIONS FOR FIRE WEATHER 
ZONES 049 AND 054...

The National Weather Service in San Angelo has issued a Red Flag
Warning, which is in effect from noon today to 7 PM CDT this
evening. 

* AFFECTED AREA...Fire weather zones 049 and 054.

* WIND...West winds 15 to 20 mph, with higher gusts expected

* HUMIDITY...5 to 10 percent

* Fuels...Dry

* IMPACTS...ANY FIRES THAT DEVELOP CAN SPREAD RAPIDLY. OUTDOOR
  BURNING IS DISCOURAGED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now or will occur shortly. A combination of
strong winds, low humidity and dry fuels will contribute to
extreme fire behavior.

&&

$$
1 follow-up statement
106 
WWUS84 KSJT 091258
RFWSJT

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Angelo TX
758 AM CDT Fri Apr 9 2021

...Near Critical to Critical Fire Weather Conditions Today...

.Warm, dry and windy conditions are expected this afternoon and
early evening across the Concho Valley, Edwards Plateau and
western portions of the Big Country. These conditions, combined
with dry fuels, will result in Near Critical to Critical Fire
Weather conditions.

TXZ049-054-064-065-071>073-076>078-154-168>170-100000-
/O.CON.KSJT.FW.W.0002.210409T1700Z-210410T0000Z/
Fisher-Nolan-Sterling-Coke-Irion-Tom Green-Concho-Crockett-
Schleicher-Sutton-McCulloch-Menard-Kimble-Mason-
758 AM CDT Fri Apr 9 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT
THIS EVENING FOR THE CONCHO VALLEY, NORTHERN EDWARDS PLATEAU, AND
WESTERN PORTIONS OF THE BIG COUNTRY FOR 20 FOOT WINDS OF 20 MPH 
OR MORE...RELATIVE HUMIDITIES OF 15 PERCENT OR LESS AND A HIGH 
FIRE DANGER...

* Wind...West winds 15 to 20 mph, with higher gusts expected

* Humidity...5 to 10 percent

* Fuels...Dry

* Impacts...ANY FIRES THAT DEVELOP CAN SPREAD RAPIDLY. OUTDOOR 
  BURNING IS DISCOURAGED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now or will occur shortly. A combination of
strong winds, low humidity and dry fuels will contribute to
extreme fire behavior.

&&

$$

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.