Alert archive / Texas / Red Flag Warnings in 2009

Red Flag Warning 19, NWS Amarillo, TX

April 3, 200912 counties in Texas

NWS Amarillo, TX issued this red flag warning at Apr 3, 2009, 4:41 AM CDT for 12 counties in Texas. It took effect at Apr 3, 2009, 12:00 PM 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: Apr 3, 2009, 4:41 AM CDT (09:41 UTC)
In effect from: Apr 3, 2009, 12:00 PM CDT
Expired: Apr 3, 2009, 9:00 PM CDT
In force: 9 hr
Issued by: NWS Amarillo, TX

Counties Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Oldham County, TX, Potter County, TX, Randall County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 9.7 hours before the alert went out and 390 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 6059 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this red flag warning went out at Apr 2, 11:35 PM CDT, 5 hours 6 minutes earlier.

Area forecast discussion, Apr 2, 11:35 PM CDT, 5 hours 6 minutes before

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Hazardous weather outlook, Apr 2, 2:58 PM CDT, 13 hours 43 minutes before

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In the hours before

Local storm report, Apr 3, 1:10 AM CDT, 3 hours 31 minutes before

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The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 4:41 AM CDT	Fire Weather Watch	AMA	Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more	23 hr
Apr 3, 4:47 AM CDT	High Wind Watch	AMA	Armstrong, Carson, Dallam, Deaf Smith, Hansford, Hartley and 6 more	22 hr
Apr 3, 10:36 AM CDT	Wind Advisory	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 6 more	5 hr

Nearby

Red Flag Warnings in Texas, 2009 Every red flag warning in 2009

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.