Alert archive / Texas / Flash Flood Warnings in 2009

Flash Flood Warning 18, NWS Fort Worth, TX

April 29, 2009Cooke County, Montague County, Texas

NWS Fort Worth, TX issued this flash flood warning at Apr 29, 2009, 5:33 PM CDT for Cooke County, Montague County, Texas. It was in force for 3 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 29, 2009, 5:33 PM CDT (22:33 UTC)
Expired: Apr 29, 2009, 8:30 PM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Flood severity: None

Counties Cooke County, TX, Montague County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 122 km from the middle of the area, began a volume at 22:36 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

Fort Worth, TX (KFWD), launched 12:00Z, 10.6 hours before the alert went out and 93 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: 1229 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 462 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.4

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Fort Worth, TX wrote its last area forecast discussion before this flash flood warning went out at Apr 29, 2:56 PM CDT, 2 hours 37 minutes earlier.

Area forecast discussion, Apr 29, 2:56 PM CDT, 2 hours 37 minutes before

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Hazardous weather outlook, Apr 29, 3:24 PM CDT, 2 hours 9 minutes before

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In the hours before

Local storm report, Apr 29, 3:23 PM CDT, 2 hours 10 minutes before

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Local storm report, Apr 29, 4:24 PM CDT, 1 hour 9 minutes before

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Local storm report, Apr 29, 4:32 PM CDT, 1 hour 1 minute before

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Local storm report, Apr 29, 5:11 PM CDT, 22 minutes before

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Local storm report, Apr 29, 5:12 PM CDT, 21 minutes before

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Local storm report, Apr 29, 5:26 PM CDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:01 PM CDT	Areal Flood Warning	FWD	Freestone	4 hr
Apr 28, 7:17 PM CDT	Areal Flood Warning	FWD	Robertson	3 hr
Apr 29, 8:43 AM CDT	River Flood Warning	FWD	Anderson, Freestone, Leon	37 hr
Apr 29, 9:26 AM CDT	Special Weather Statement	FWD	Montague	34 min
Apr 29, 10:10 AM CDT	Special Weather Statement	FWD	Montague	35 min
Apr 29, 10:17 AM CDT	Severe Thunderstorm Warning	FWD	Montague	73 min
Apr 29, 11:09 AM CDT	Flash Flood Warning	FWD	Montague	3 hr
Apr 29, 11:25 AM CDT	Special Weather Statement	FWD	Grayson	35 min
Apr 29, 11:40 AM CDT	Special Weather Statement	FWD	Cooke	20 min
Apr 29, 11:57 AM CDT	Flash Flood Warning	FWD	Cooke	3 hr
Apr 29, 12:18 PM CDT	Special Weather Statement	FWD	Grayson	27 min
Apr 29, 12:21 PM CDT	Special Weather Statement	FWD	Wise	24 min
Apr 29, 12:24 PM CDT	Flash Flood Warning	FWD	Grayson	3 hr
Apr 29, 1:23 PM CDT	Special Weather Statement	FWD	Fannin, Lamar	67 min
Apr 29, 1:47 PM CDT	Areal Flood Advisory	FWD	Fannin, Lamar	3 hr
Apr 29, 2:12 PM CDT	Areal Flood Advisory	FWD	Montague	3 hr
Apr 29, 2:35 PM CDT	Severe Thunderstorm Warning	FWD	Montague	55 min
Apr 29, 2:50 PM CDT	Flash Flood Warning	FWD	Cooke, Montague	3 hr
Apr 29, 3:00 PM CDT	Flash Flood Warning	FWD	Fannin, Grayson	6 hr
Apr 29, 3:09 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Wise	66 min
Apr 29, 3:29 PM CDT	Severe Thunderstorm Warning	FWD	Young	61 min
Apr 29, 3:53 PM CDT	Areal Flood Advisory	FWD	Hopkins, Hunt	3 hr
Apr 29, 4:28 PM CDT	Severe Thunderstorm Warning	FWD	Jack	62 min
Apr 29, 5:48 PM CDT	Areal Flood Advisory	FWD	Jack, Wise	3 hr
Apr 29, 6:05 PM CDT	Areal Flood Advisory	FWD	Collin, Denton	3 hr
Apr 29, 6:10 PM CDT	River Flood Warning	FWD	Cooke	14 hr
Apr 29, 6:28 PM CDT	Special Weather Statement	FWD	Montague	32 min
Apr 29, 6:30 PM CDT	Severe Thunderstorm Warning	FWD	Montague	33 min

Nearby

Flash Flood Warnings in Texas, 2009 Every flash flood 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; radar from the NEXRAD Level II archive.