Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 37, NWS San Angelo, TX

May 31, 1999Throckmorton County, Texas

NWS San Angelo, TX issued this flash flood warning at May 31, 1999, 9:50 PM CDT for Throckmorton 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: May 31, 1999, 9:50 PM CDT (02:50 UTC)
Expired: Jun 1, 1999, 12:50 AM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Whole counties

County Throckmorton County, TX

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.8 hours before the alert went out and 282 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: 1985 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1255 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at May 31, 9:02 PM CDT, 48 minutes earlier.

Area forecast discussion, May 31, 9:02 PM CDT, 48 minutes before

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In the hours before

Local storm report, May 31, 6:00 PM CDT, 3 hours 50 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
600 PM CDT MON MAY 31 1999

TIME(CDT)  .....CITY LOCATION.....   STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0545 PM    10 S THROCKMORTON         TX   0.75 INCH HAIL
05/31/99   THROCKMORTON

Local storm report, May 31, 6:48 PM CDT, 3 hours 2 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
648 PM CDT MON MAY 31 1999

TIME(CDT)  .....CITY LOCATION.....   STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0605 PM    15 S THROCKMORTON         TX   0.88 SIZE HAIL
05/31/99   THROCKMORTON

0638 PM    17 S THROCKMORTON         TX   2.75 INCH HAIL
05/31/99   THROCKMORTON                   BROKE CAR WINDSHIELD

Local storm report, May 31, 6:48 PM CDT, 3 hours 2 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
648 PM CDT MON MAY 31 1999

TIME(CDT)  .....CITY LOCATION.....   STATE...EVENT/REMARKS...
           ....COUNTY LOCATION....

0605 PM    15 S THROCKMORTON         TX   0.88 SIZE HAIL
05/31/99   THROCKMORTON

0638 PM    17 S THROCKMORTON         TX   2.75 INCH HAIL
05/31/99   THROCKMORTON                   BROKE CAR WINDSHIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 7:07 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	63 min
May 31, 7:13 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	62 min
May 31, 7:34 PM CDT	Severe Thunderstorm Warning	SJT	Coke	66 min
May 31, 7:36 PM CDT	Tornado Warning	SJT	Sterling	64 min
May 31, 7:54 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	96 min
May 31, 8:20 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	65 min
May 31, 8:35 PM CDT	Severe Thunderstorm Warning	SJT	Taylor	65 min
May 31, 8:40 PM CDT	Severe Thunderstorm Warning	SJT	Throckmorton	65 min
May 31, 8:40 PM CDT	Severe Thunderstorm Warning	SJT	Fisher	50 min
May 31, 9:01 PM CDT	Severe Thunderstorm Warning	SJT	Jones	49 min
May 31, 9:10 PM CDT	Severe Thunderstorm Warning	SJT	Jones	60 min
May 31, 9:20 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	65 min
May 31, 9:45 PM CDT	Severe Thunderstorm Warning	SJT	Throckmorton	65 min
May 31, 10:42 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	93 min

Nearby

Flash Flood Warnings in Texas, 1999 Every flash flood warning in 1999

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.