Alert archive / Texas / Tornado Warnings in 1991

Tornado Warning 8, NWS Fort Worth, TX

April 11, 1991Ellis County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 11, 1991, 9:03 PM CDT for Ellis County, Texas. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 11, 1991, 9:03 PM CDT (02:03 UTC)
Expired: Apr 11, 1991, 9:45 PM CDT
In force: 42 min
Issued by: NWS Fort Worth, TX
Area: Whole counties

County Ellis County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 11, 9:10 PM CDT	Thunderstorm Wind 52	Ellis, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 2.1 hours before the alert went out and 206 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: 633 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 266 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

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

In the hours before

Special weather statement, Apr 11, 5:48 PM CDT, 3 hours 15 minutes before

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Special weather statement, Apr 11, 6:14 PM CDT, 2 hours 49 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 11, 7:00 PM CDT	Severe Thunderstorm Warning	FWD	McLennan	45 min
Apr 11, 7:20 PM CDT	Severe Thunderstorm Warning	FWD	Montague	25 min
Apr 11, 7:24 PM CDT	Severe Thunderstorm Warning	FWD	Hill	66 min
Apr 11, 8:18 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Navarro	57 min
Apr 11, 8:35 PM CDT	Severe Thunderstorm Warning	FWD	Denton	55 min
Apr 11, 8:44 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	46 min
Apr 11, 8:55 PM CDT	Severe Thunderstorm Warning	FWD	Hood	50 min
Apr 11, 9:01 PM CDT	Severe Thunderstorm Warning	FWD	Cooke	44 min
Apr 11, 9:40 PM CDT	Severe Thunderstorm Warning	FWD	Dallas	65 min
Apr 11, 9:43 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	62 min
Apr 11, 9:52 PM CDT	Severe Thunderstorm Warning	FWD	Grayson	58 min
Apr 11, 10:01 PM CDT	Flash Flood Warning	FWD	Denton	119 min
Apr 11, 10:24 PM CDT	Flash Flood Warning	FWD	Tarrant	2 hr
Apr 12, 12:04 AM CDT	Flash Flood Warning	FWD	Collin	116 min
Apr 12, 3:42 PM CDT	Severe Thunderstorm Warning	FWD	Erath	63 min
Apr 12, 4:21 PM CDT	Severe Thunderstorm Warning	FWD	Hood	69 min
Apr 12, 4:35 PM CDT	Tornado Warning	FWD	Hood	55 min
Apr 12, 5:26 PM CDT	Tornado Warning	FWD	Hood, Somervell	49 min
Apr 12, 5:49 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	56 min
Apr 12, 6:19 PM CDT	Tornado Warning	FWD	Johnson, Somervell	41 min
Apr 12, 6:53 PM CDT	Tornado Warning	FWD	Johnson	52 min

Nearby

Tornado Warnings in Texas, 1991 Every tornado warning in 1991 Tornadoes in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.