Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 20, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Mar 7, 1998, 12:53 PM CST for Tom Green County, Texas. It was in force for 47 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
- Mar 7, 1998, 12:53 PM CST (18:53 UTC)
- Expired
- Mar 7, 1998, 1:40 PM CST
- In force
- 47 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Tom Green County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 7, 1:36 PM CST | Hail 0.75 | Vancourt, 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 nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 6.9 hours before the alert went out and 175 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
- 498 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 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 Mar 7, 10:12 AM CST, 2 hours 41 minutes earlier.
Area forecast discussion, Mar 7, 10:12 AM CST, 2 hours 41 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 1012 AM CST SAT MAR 7 1998 WILL TWEAK LOCAL POPS INTO THE SLIGHT CHANCE CATEGORY AND DROP TSRA FROM THE FORECAST AS MOST ACTIVITY BEHIND THE DRY PUNCH WILL BE VIRGA PRODUCING SOME SPRINKLES. JUDGING BY THE 65 DEGREE READING AT MAF...WILL INCREASE TEMPS A CATEGORY AT SJT AS SOME BREAKS IN THE CLOUDS ALREADY NOTED OUTSIDE WINDOW AND ON SATELLITE VIS IMAGERY. OTHERWISE...WILL ONLY MAKE COSMETIC CHANGES TO LOCALS. ALTHOUGH RADAR TRENDS SHOW LITTLE ACTIVITY OVER THE NORTHWEST HILL COUNTRY AND SOUTHERN HEARTLAND...THIS AREA IS STILL IN A VERY UNSTABLE ENVIRONMENT...SO SCATTERED CONVECTION APPEARS ON TRACK FOR NOW. 15
In the hours before
Special weather statement, Mar 7, 9:48 AM CST, 3 hours 5 minutes before
TXZ098-099-113-114-127-128-071605- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 948 AM CST SAT MAR 7 1998 ...THE SEVERE THUNDERSTORM WATCH FOR THE EASTERN BIG COUNTRY HAS BEEN CANCELLED... AT 945 AM...SHOWERS AND THUNDERSTORMS HAVE MOVED TO THE EAST OF THE BIG COUNTRY...ENDING THE THREAT OF SEVERE WEATHER. REDEVELOPMENT OF THUNDERSTORMS IS NOT LIKELY IN THE EASTERN BIG COUNTRY THIS MORNING...SO THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. 10
Special weather statement, Mar 7, 9:48 AM CST, 3 hours 5 minutes before
TXZ098-099-113-114-127-128-071605- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 948 AM CST SAT MAR 7 1998 ...THE SEVERE THUNDERSTORM WATCH FOR THE EASTERN BIG COUNTRY HAS BEEN CANCELLED... AT 945 AM...SHOWERS AND THUNDERSTORMS HAVE MOVED TO THE EAST OF THE BIG COUNTRY...ENDING THE THREAT OF SEVERE WEATHER. REDEVELOPMENT OF THUNDERSTORMS IS NOT LIKELY IN THE EASTERN BIG COUNTRY THIS MORNING...SO THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. 10
Local storm report, Mar 7, 12:45 PM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TEXAS
145 PM CDT SAT MAR 07 1998
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0136 PM VANCOURT TX 0.75 INCH HAIL
03/07/98 TOM GREEN DIME SIZE HAIL REPORTED
BY SPOTTERThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 8:03 PM CST | Severe Thunderstorm Warning | SJT | Crockett | 47 min |
| Mar 6, 9:51 PM CST | Severe Thunderstorm Warning | SJT | Crockett | 94 min |
| Mar 6, 9:57 PM CST | Severe Thunderstorm Warning | SJT | Irion | 93 min |
| Mar 7, 1:00 AM CST | Severe Thunderstorm Warning | SJT | Crockett | 35 min |
| Mar 7, 2:44 AM CST | Severe Thunderstorm Warning | SJT | Nolan | 46 min |
| Mar 7, 3:17 AM CST | Severe Thunderstorm Warning | SJT | Taylor | 48 min |
| Mar 7, 8:46 AM CST | Severe Thunderstorm Warning | SJT | Schleicher, Tom Green | 49 min |
| Mar 7, 12:57 PM CST | Severe Thunderstorm Warning | SJT | Crockett | 63 min |
| Mar 7, 1:27 PM CST | Severe Thunderstorm Warning | SJT | Concho | 63 min |
| Mar 7, 1:53 PM CST | Tornado Warning | SJT | Sutton | 77 min |
| Mar 7, 2:14 PM CST | Tornado Warning | SJT | Tom Green | 61 min |
| Mar 7, 2:24 PM CST | Severe Thunderstorm Warning | SJT | Concho | 46 min |
| Mar 7, 2:42 PM CST | Severe Thunderstorm Warning | SJT | Concho | 58 min |
| Mar 7, 2:51 PM CST | Severe Thunderstorm Warning | SJT | Kimble | 74 min |
| Mar 7, 3:20 PM CST | Severe Thunderstorm Warning | SJT | Coleman, McCulloch | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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.