Alert archive / Texas / Tornado Warnings in 1991

Tornado Warning 18, NWS Fort Worth, TX

April 13, 1991Hill County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 13, 1991, 12:02 AM CDT for Hill County, Texas. It was in force for 43 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 13, 1991, 12:02 AM CDT (05:02 UTC)
Expired: Apr 13, 1991, 12:45 AM CDT
In force: 43 min
Issued by: NWS Fort Worth, TX
Area: Whole counties

County Hill County, TX

What was reported inside it

Time	Report	Where	Remark
Apr 13, 12:09 AM CDT	Hail 1.75	Hill, 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

Stephenville/Cla, TX (KSEP), launched 00:00Z, 5.0 hours before the alert went out and 95 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: 2952 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1539 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 8.7

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 12, 7:14 PM CDT, 4 hours 48 minutes before

TXZ031-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WACO TX
712 PM CDT FRI APR 12 1991

...TORNADO WATCH IN EFFECT UNTIL 1000 PM CDT FOR BELL...BOSQUE...CORYELL
...HILL AND MCLENNAN COUNTIES...

AT 709 PM CDT A LARGE SEVERE THUNDERSTORM WITH VERY HEAVY RAINS...STRONG
DAMAGING WINDS AND HAIL WAS OVER JOHNSON COUNTY. IT WAS MOVING EAST AT 10
MILES AN HOUR.

ALTHOUGH NO SEVERE WEATHER WAS NOTED OVER CENTRAL TEXAS RESIDENTS SHOULD
BE ON THE LOOKOUT FOR THUNDERSTORMS LATER THIS EVENING AND TONIGHT. SOME
OF THE STORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN...STRONG GUSTY
WINDS...DANGEROUS LIGHTNING AND LARGE HAIL.  TORNADOES WILL ALSO BE
POSSIBLE.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE
WARNINGS.                                               05

Special weather statement, Apr 12, 8:15 PM CDT, 3 hours 47 minutes before

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Special weather statement, Apr 12, 10:10 PM CDT, 1 hour 52 minutes before

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Local storm report, Apr 12, 10:11 PM CDT, 1 hour 51 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 12, 7:34 PM CDT	Flash Flood Warning	FWD	Johnson	3 hr
Apr 12, 7:43 PM CDT	Tornado Warning	FWD	Johnson	47 min
Apr 12, 8:30 PM CDT	Tornado Warning	FWD	Johnson	60 min
Apr 12, 9:10 PM CDT	Tornado Warning	FWD	Hill	65 min
Apr 12, 9:30 PM CDT	Tornado Warning	FWD	Johnson	45 min
Apr 12, 10:15 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	45 min
Apr 12, 10:16 PM CDT	Tornado Warning	FWD	Hill	59 min
Apr 12, 10:27 PM CDT	Flash Flood Warning	FWD	Johnson	3 hr
Apr 12, 11:04 PM CDT	Flash Flood Warning	FWD	Hill	4 hr
Apr 13, 12:16 AM CDT	Flash Flood Warning	FWD	Ellis	59 min
Apr 13, 9:04 AM CDT	Flash Flood Warning	FWD	Johnson, Somervell	4 hr
Apr 13, 9:04 AM CDT	Flash Flood Warning	FWD	Hamilton	4 hr
Apr 13, 9:17 AM CDT	Flash Flood Warning	FWD	Dallas, Tarrant	4 hr
Apr 13, 10:32 AM CDT	Flash Flood Warning	FWD	Ellis	2 hr
Apr 13, 10:59 AM CDT	Flash Flood Warning	FWD	Bell, Coryell, McLennan	3 hr
Apr 13, 11:05 AM CDT	Flash Flood Warning	FWD	Hunt, Rockwall	3 hr
Apr 13, 11:56 AM CDT	Severe Thunderstorm Warning	FWD	Bell	64 min
Apr 13, 12:16 PM CDT	Severe Thunderstorm Warning	FWD	Ellis	31 min
Apr 13, 12:18 PM CDT	Flash Flood Warning	FWD	Falls, Limestone	3 hr
Apr 13, 1:04 PM CDT	Flash Flood Warning	FWD	Bell, Coryell, Falls, Hill, Limestone, McLennan	3 hr
Apr 13, 1:06 PM CDT	Tornado Warning	FWD	Red River	54 min
Apr 13, 4:47 PM CDT	Severe Thunderstorm Warning	FWD	Brazos, Robertson	58 min
Apr 13, 5:23 PM CDT	Severe Thunderstorm Warning	FWD	Leon, Madison	52 min
Apr 13, 6:03 PM CDT	Severe Thunderstorm Warning	FWD	Brazos	57 min
Apr 13, 6:58 PM CDT	Severe Thunderstorm Warning	FWD	Brazos	62 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.