Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 273, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Dec 23, 2002, 5:08 PM CST for Mason County, Texas. It was in force for 52 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
- Dec 23, 2002, 5:08 PM CST (23:08 UTC)
- Expired
- Dec 23, 2002, 6:00 PM CST
- In force
- 52 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Mason County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 23, 5:15 PM CST | Hail 0.75 | Mason, TX | Hail covered the ground and caused automobiles to slide off the road. |
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
Del Rio, TX (KDRT), launched 12:00Z, 11.1 hours before the alert went out and 216 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
- 122 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 662 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Dec 23, 3:15 PM CST, 1 hour 53 minutes earlier.
Area forecast discussion, Dec 23, 3:15 PM CST, 1 hour 53 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 315 PM CST MON DEC 23 2002 RECEIVED REPORT OF 20 MINUTES OF PEA SIZE HAIL IN ROCHELLE. WITH RADAR INDICATING A FEW STRONGER STORMS STILL LINGERING IN THE SOUTHEAST...UPDATED TO ADD MENTION OF A FEW SEVERE STORMS IN THE SOUTHEAST COUNTIES. WITH THE ELEVATED INSTABILITY EXPECTED TO CONTINUE TO MOVE OFF TO THE SOUTH AND EAST...EXPECT TO UPDATE LATER THIS EVENING TO REMOVE MENTION OF ANY SEVERE STORMS. 24 BELOW IS MAIN AFTERNOON DISCUSSION. --------------------------------------------------------------------- THE WATER VAPOR LOOP INDICATED UPPER LEVEL LOW WAS IN EAST CENTRAL ARIZONA...LIFTING NORTHEAST THIS AFTERNOON. A DRY SLOT WAS OVER WEST CENTRAL TEXAS...WITH A SHORTWAVE NEARING FAR WEST TEXAS AND THE BIG BEND AT 1 PM. SKIES CLEARED TEMPORARILY IN JUNCTION AT NOON TO ALLOW THE TEMPERATURE TO SHOOT TO 70 DEGREES...OTHERWISE TEMPERATURES WERE IN THE UPPER 30S IN THE BIG COUNTRY AND 40S ELSEWHERE. THE COLD FRONT PUSHED THROUGH JUNCTION AROUND 1230 PM AND TEMPERATURES FELL BACK TO 61 DEGREES. THE INFRARED SHOWED THE FRONT FROM SOUTHEAST SAN SABA COUNTY TO SOUTHERN KIMBLE COUNTY...PUSHING SOUTHEAST. WEST CENTRAL TEXAS WILL BE BETWEEN THE TWO BIGGEST WEATHER MAKERS. THE MOIST UNSTABLE AIR NEAR THE COLD FRONT MAY PRODUCE A SEVERE THUNDERSTORM OR TWO IN SOUTHEASTERN SECTION THIS EVENING. WITH FRONT PUSHING SOUTHEAST HOWEVER...CHANCES WILL DECREASE THIS EVENING. DAY ONE SEVERE WEATHER OUTLOOK HAS A MODERATE RISK OF STORM EAST OF A JUNCTION TO SAN SABA LINE. THE SECOND WEATHER MAKER...THE SHORTWAVE OVER THE BIG BEND...WILL MOVE NORTHEAST OVER WEST CENTRAL TEXAS THIS EVENING. WILL GO WITH LIKELY POPS OVER THE N EDWARDS PLATEAU...CONCHO VALLEY AND BIG COUNTRY TONIGHT BECAUSE OF THIS FEATURE...THOUGH RAIN AMOUNTS WILL BE 1 OR 2 HUNDREDTHS OF AN INCH. AVN MODEL INDICATED THE 540 THICKNESS LINE TO FALL ALONG INTERSTATE 20 AT 06Z (MIDNIGHT) AND SOUTH TO A OZONA TO BROWNWOOD LINE AT 12Z. MODEL SOUNDINGS INDICATED A CHANGE OVER FROM RAIN TO SNOW ACROSS HASKELL AND THROCKMORTON THIS EVENING...AND PERHAPS THE ABILENE AND INTERSTATE 20 AREA AROUND MIDNIGHT. MAIN PROBLEM WITH ALL OF THIS? GETTING MEASURABLE SNOW AMOUNTS MOISTURE IS QUITE SHALLOW...ESPECIALLY AFTER MIDNIGHT. THUS MAINLY SNOW FLURRIES...THOUGH CAN NOT RULE OUT ONE OR TWO PLACES RECEIVING LIGHT ACCUMULATIONS OF LESS THAN 1 INCH. AVN SHOWS A SECONDARY SHORTWAVE MOVING THROUGH THE REGION BETWEEN 3 AM AND 9 AM TUESDAY MORNING. MOISTURE IS MORE SHALLOW AT THIS TIME...SO THINK FLURRIES MORE LIKELY OVER THE CONCHO VALLEY AND BIG COUNTRY. TUESDAY NIGHT...UPPER TROUGH MOVES ACROSS...WITH SKIES CLEARING. WITH WINDS BECOMING LIGHT...SHOULD SEE TEMPERATURES IN THE MID 20S ACROSS THE REGION. CHRISTMAS...JUST PARTLY CLOUDY WITH TEMPERATURES REBOUNDING WITH THE SUN. A WEAK SHORTWAVE MAY PUSH THROUGH THE RED RIVER WEDNESDAY NIGHT...ALLOWING THE SKIES TO CLOUD UP OVER THE BIG COUNTRY. POTENTIAL EXISTS FOR A FLURRY OR TWO BUT WONT MENTION IT THE ZONES. THURSDAY INTO MONDAY....WARMING TREND EXTENDS THROUGH SATURDAY. MAY SEE SOME HIGH CLOUDS MOVING WITH APPROACH A STRONG UPPER TROUGH SUNDAY...AND A COLD FRONT SUNDAY NIGHT. AT THIS POINT THE FRONT LOOKS DRY. ABI 029/036/023/048 6200 SJT 032/040/025/052 6200 JCT 035/042/024/053 4200 .SJT...NONE. 04
Hazardous weather outlook, Dec 23, 2:15 PM CST, 2 hours 53 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-242000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 215 PM CST MON DEC 23 2002 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS. .DAY ONE...MOST OF THE WEATHER ASSOCIATED WITH THE UPPER LEVEL STORM SYSTEM IS IMPACTING AREAS NORTH AND EAST OF WEST CENTRAL TEXAS. VERY LIGHT RAIN OR DRIZZLE IS ABOUT ALL THAT WE WILL SEE THROUGH THE EVENING HOURS. ANOTHER UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE AREA TONIGHT AND EARLY TUESDAY MORNING. WHILE LIMITED ON MOISTURE THERE MAY BE A FEW LIGHT SNOW SHOWERS OF FLURRIES ALONG THE I-20 CORRIDOR. .DAYS TWO THROUGH SEVEN...SKIES WILL CLEAR AND WE WILL SEE SEASONAL TEMPERATURES. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 5:33 PM CST | Severe Thunderstorm Warning | SJT | San Saba | 57 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.