Alert archive / Texas / Red Flag Warnings in 2017

Red Flag Warning 13, NWS Amarillo, TX

March 19, 201711 counties in Texas

NWS Amarillo, TX issued this red flag warning at Mar 19, 2017, 4:26 AM CDT for 11 counties in Texas. It took effect at Mar 19, 2017, 1:00 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
Mar 19, 2017, 4:26 AM CDT (09:26 UTC)
In effect from
Mar 19, 2017, 1:00 PM CDT
Expired
Mar 19, 2017, 8:00 PM CDT
In force
7 hr
Issued by
NWS Amarillo, TX

Counties Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hartley County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 19 km from the middle of the area, began a volume at 09:27 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 9.4 hours before the alert went out and 18 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, Amarillo Airport, TX at 00:00Z on 2017-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 805 joules per kilogram.LCLLFCEL10008507005003002001001 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, Amarillo Airport, TX at 00:00Z on 2017-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 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
805 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
2175 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

128 
WWUS84 KAMA 190926
RFWAMA

URGENT - FIRE WEATHER MESSAGE
National Weather Service Amarillo TX
426 AM CDT Sun Mar 19 2017

TXZ006-011>020-200100-
/O.NEW.KAMA.FW.W.0013.170319T1800Z-170320T0100Z/
Hartley-Oldham-Potter-Carson-Gray-Wheeler-Deaf Smith-Randall-
Armstrong-Donley-Collingsworth-
426 AM CDT Sun Mar 19 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR
SOUTHWESTERN AND SOUTHERN PORTIONS OF THE TEXAS PANHANDLE...

The National Weather Service in Amarillo has issued a Red Flag
Warning for strong winds and low relative humidity...which is in
effect from 1 PM this afternoon to 8 PM CDT this evening.

* Affected Area...In Texas...Hartley...Oldham...Potter...
  Carson... Gray...Wheeler...Deaf Smith...Randall...Armstrong...
  Donley and Collingsworth.

* 20 Foot Winds...southwest around 20 mph with gusts up to 35 
  mph.

* Relative Humidity...as low as 6 percent.

* Timing...this afternoon and early evening. 

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 will
create favorable weather for rapid fire growth and spread. Avoid
activities that promote open flames and sparks.

&&

$$

For more information from the National Weather Service visit...
www.weather.gov/ama

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.