Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 90, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 3, 2002, 4:02 AM CDT for Callahan County, Texas. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 3, 2002, 4:02 AM CDT (09:02 UTC)
- Expired
- May 3, 2002, 4:30 AM CDT
- In force
- 28 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Callahan County, TX
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 9.0 hours before the alert went out and 205 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 925 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KSJT 030902 SVRSJT TXC059-030930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 402 AM CDT FRI MAY 3 2002 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALLAHAN COUNTY IN NORTH CENTRAL TEXAS * UNTIL 430 AM CDT * AT 356 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES WEST OF CROSS PLAINS...OR ABOUT 16 MILES NORTH OF COLEMAN...MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CROSS PLAINS AT 410 AM CDT SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...DAMAGING WINDS...DANGEROUS LIGHTNING...AND VERY HEAVY RAINFALL. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. LAT...LON 3213 9943 3209 9943 3210 9912 3219 9915
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 May 3, 3:10 AM CDT, 52 minutes earlier.
Area forecast discussion, May 3, 3:10 AM CDT, 52 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE SAN ANGELO TX 310 AM CDT FRI MAY 3 2002 AN 850MB JET IS BEGINNING TO DEVELOP OVER THE SOUTHERN COUNTIES. ASSOCIATED SHOWERS AND THUNDERSTORMS ARE DEVELOPING ALONG AND NORTH OF THE 850MB MOISTURE CONVERGENCE LINE. AT 06Z THIS LINE STRETCHED FROM THE WESTERN TIP OF TOM GREEN COUNTY EASTWARD THROUGH RUNNELS AND BROWN COUNTIES. A FEW OF THESE STORMS MAY BECOME SEVERE WITH LARGE HAIL AND STRONG WINDS POSSIBLE. THIS AREA WILL LIFT SLOWLY NORTHEAST EARLY THIS MORNING BEFORE BEING SWEPT TO THE EAST BY AN 850MB TROUGH/DRYLINE MOVING IN FROM THE WEST BY MID MORNING. OTHERWISE...THE REST OF FRIDAY WILL BE DRY WITH TEMPS NEAR NORMAL...WITH DEWPOINTS IN THE LOW 40S TO NEAR 50F ACROSS THE ENTIRE AREA. SATURDAY/SATURDAY NIGHT ANOTHER WAVE OF MOISTURE WILL WORK ITS WAY NORTH ACROSS WEST CENTRAL TEXAS AS A VIGOROUS SHORT WAVE SLIDES NORTHEAST ACROSS THE REGION. THIS WILL HELP TO TRIGGER SCATTERED SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON/EVENING SOUTH AND DURING THE EVENING/OVERNIGHT NORTH. WILL HAVE TO WATCH FOR SEVERE POTENTIAL WITH THESE STORMS...WITH STRONG THETA-E ADVECTION AND GOOD LOW LEVEL CONVERGENCE. LEFT THE EXTENDED AS IS WITH THE MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS MONDAY THROUGH WEDNESDAY FOR ALL AREAS. THE BEST CHANCES WILL BE ALONG THE DRYLINE IN THE BIG COUNTRY DURING THE AFTERNOONS/EARLY EVENINGS...WITH VERY SLIM CHANCES (ISOLATED AT BEST) SOUTH OF THE BIG COUNTRY. WILL BUMP UP HIGHS SLIGHTLY ALL AREAS GIVEN THE 850MB TEMPS INDICATING SLIGHTLY WARMER THAN PREVIOUS RUNS. ABI 084/058/085/064 3034 SJT 086/059/086/067 2032 JCT 088/061/086/068 1032 .SJT...NONE. 24
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 1:46 AM CDT | Severe Thunderstorm Warning | SJT | Runnels | 44 min |
| May 3, 2:24 AM CDT | Severe Thunderstorm Warning | SJT | Coke | 51 min |
| May 3, 2:41 AM CDT | Severe Thunderstorm Warning | SJT | Coleman | 34 min |
| May 3, 3:05 AM CDT | Severe Thunderstorm Warning | SJT | Callahan | 40 min |
| May 3, 3:40 AM CDT | Severe Thunderstorm Warning | SJT | Coleman | 35 min |
| May 3, 4:10 AM CDT | Severe Thunderstorm Warning | SJT | Brown | 35 min |
| May 3, 8:22 AM CDT | Severe Thunderstorm Warning | SJT | San Saba | 23 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.