Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 96, NWS San Angelo, TX

April 30, 2000Runnels County, Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 30, 2000, 8:28 PM CDT for Runnels County, Tom Green County, Texas. It was in force for 62 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 30, 2000, 8:28 PM CDT (01:28 UTC)
Expired: Apr 30, 2000, 9:30 PM CDT
In force: 62 min
Issued by: NWS San Angelo, TX
Area: Whole counties

Counties Runnels County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 38 km from the middle of the area, began a volume at 01:31 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.

What was reported inside it

Time	Report	Where	Remark
Apr 30, 9:05 PM CDT	Hail 0.75	Christoval, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 30, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.5 hours before the alert went out and 191 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: 5297 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KSJT 010132 COR
SVRSJT
TXC399-451-010230-

BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING...CORRECTION TO TEXT
NATIONAL WEATHER SERVICE SAN ANGELO TX
828 PM CDT SUN APR 30 2000

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RUNNELS COUNTY IN WEST CENTRAL TEXAS
  TOM GREEN COUNTY IN WEST CENTRAL TEXAS

* UNTIL 930 PM CDT

* AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTH OF ORIENT...OR ABOUT 9 MILES     
  NORTHEAST OF SAN ANGELO...MOVING NORTHEAST AT 45 MPH. ADDITIONAL 
  THUNDERSTORMS ARE DEVELOPING RAPIDLY SOUTHWEST TO TANKERSLY AND    
  MAY IMPACT SAN ANGELO BETWEEN 830 PM AND 9 PM.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MILES AT 840 PM CDT
  BALLINGER AT 900 PM CDT
  CREWS AT 920 PM CDT

HAILSTONES AS LARGE AS GOLFBALLS ARE LIKELY WITH THIS STORM. MOVE TO AN 
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND STAY AWAY 
FROM WINDOWS.

TEW

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 30, 7:06 PM CDT, 1 hour 22 minutes earlier.

Area forecast discussion, Apr 30, 7:06 PM CDT, 1 hour 22 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
706 PM CDT SUN APR 30 2000

...TORNADO WATCH IS IN EFFECT FOR HASKELL AND THROCKMORTON COUNTIES UNTIL
1000PM...

HAVE UPDATED ZONES TO REFLECT TORNADO WATCH EXTENSION FOR THROCKMORTON AND
HASKELL COUNTIES.

.SJT...NONE.

15
N

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:43 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	47 min
Apr 30, 7:59 PM CDT	Severe Thunderstorm Warning	SJT	Coleman	76 min
Apr 30, 8:31 PM CDT	Tornado Warning	SJT	Coleman	44 min
Apr 30, 8:43 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	32 min
Apr 30, 8:51 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	59 min
Apr 30, 9:04 PM CDT	Tornado Warning	SJT	Brown	41 min
Apr 30, 9:14 PM CDT	Severe Thunderstorm Warning	SJT	Coleman	61 min
Apr 30, 9:17 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher	73 min
Apr 30, 9:45 PM CDT	Severe Thunderstorm Warning	SJT	Brown	45 min
Apr 30, 11:20 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	40 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000 Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.