Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 188, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Jul 12, 2002, 5:40 PM CDT for Dallas County, Rockwall County, Texas. It was in force for 50 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
- Jul 12, 2002, 5:40 PM CDT (22:40 UTC)
- Expired
- Jul 12, 2002, 6:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Fort Worth, TX
- Area
- Counties, with a storm outline in the text
Counties Dallas County, TX, Rockwall County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 72 km from the middle of the area, began a volume at 22:43 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 |
|---|---|---|---|
| Jul 12, 5:45 PM CDT | Hail 0.75 | Garland, TX | Occurred at the intesection of Interstate 30 and Zion 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
Fort Worth, TX (KFWD), launched 12:00Z, 10.7 hours before the alert went out and 65 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
- 1489 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 1207 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 5:15 PM CDT, 25 minutes earlier.
Area forecast discussion, Jul 12, 5:15 PM CDT, 25 minutes before
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</html>In the hours before
Special weather statement, Jul 12, 12:09 PM CDT, 5 hours 31 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-122100- HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 1209 PM CDT FRI JUL 12 2002 THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS ALL OF NORTH TEXAS THIS AFTERNOON AND TONIGHT. THE GREATEST THREAT WILL BE FROM DAMAGING DOWNBURST WINDS...VERY HEAVY RAIN...AND MARGINALLY SEVERE HAIL. MOIST AND UNSTABLE AIR WILL REMAIN OVER NORTH TEXAS THROUGH TONIGHT. SEVERAL OUTFLOW BOUNDARIES LEFT OVER FROM THUNDERSTORMS LAST NIGHT WILL PROVIDE A FOCUS FOR AFTERNOON THUNDERSTORM DEVELOPMENT. THE MOST NUMEROUS THUNDERSTORMS ARE ANTICIPATED NEAR AN EASTLAND...WACO...TO CENTERVILLE LINE. IN ADDITION...THUNDERSTORMS DEVELOPING NEAR A COLD FRONT IN OKLAHOMA THIS AFTERNOON WILL CONTINUE MOVING SOUTHWARD. THESE STORMS ARE EXPECTED TO REACH THE RED RIVER THIS EVENING AND AFFECT MUCH OF NORTH TEXAS OVERNIGHT. THE MAJORITY OF THE THUNDERSTORMS WILL PRODUCE PERIODS OF MODERATE TO HEAVY RAIN AND CLOUD TO GROUND LIGHTNING. HOWEVER...A FEW STORMS COULD BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WIND GUSTS AND MARGINALLY SEVERE HAIL. THE SLOW MOVEMENT OF THE STORMS WILL ALSO BRING A THREAT OF LOCALIZED FLOODING...ESPECIALLY IN URBAN AREAS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD PREPARE FOR POSSIBLE ACTIVATION BETWEEN 2 AND 6 PM...ESPECIALLY ALONG AND EAST OF AN EASTLAND...WACO...TO CENTERVILLE LINE. ADDITIONAL SPOTTER ACTIVATION MAY BE NECESSARY AFTER SUNSET...MAINLY NORTH OF INTERSTATE 20.
Special weather statement, Jul 12, 12:09 PM CDT, 5 hours 31 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-122100- HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 1209 PM CDT FRI JUL 12 2002 THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS ALL OF NORTH TEXAS THIS AFTERNOON AND TONIGHT. THE GREATEST THREAT WILL BE FROM DAMAGING DOWNBURST WINDS...VERY HEAVY RAIN...AND MARGINALLY SEVERE HAIL. MOIST AND UNSTABLE AIR WILL REMAIN OVER NORTH TEXAS THROUGH TONIGHT. SEVERAL OUTFLOW BOUNDARIES LEFT OVER FROM THUNDERSTORMS LAST NIGHT WILL PROVIDE A FOCUS FOR AFTERNOON THUNDERSTORM DEVELOPMENT. THE MOST NUMEROUS THUNDERSTORMS ARE ANTICIPATED NEAR AN EASTLAND...WACO...TO CENTERVILLE LINE. IN ADDITION...THUNDERSTORMS DEVELOPING NEAR A COLD FRONT IN OKLAHOMA THIS AFTERNOON WILL CONTINUE MOVING SOUTHWARD. THESE STORMS ARE EXPECTED TO REACH THE RED RIVER THIS EVENING AND AFFECT MUCH OF NORTH TEXAS OVERNIGHT. THE MAJORITY OF THE THUNDERSTORMS WILL PRODUCE PERIODS OF MODERATE TO HEAVY RAIN AND CLOUD TO GROUND LIGHTNING. HOWEVER...A FEW STORMS COULD BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WIND GUSTS AND MARGINALLY SEVERE HAIL. THE SLOW MOVEMENT OF THE STORMS WILL ALSO BRING A THREAT OF LOCALIZED FLOODING...ESPECIALLY IN URBAN AREAS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD PREPARE FOR POSSIBLE ACTIVATION BETWEEN 2 AND 6 PM...ESPECIALLY NEAR AND SOUTH OF AN EASTLAND...WACO...TO CENTERVILLE LINE. ADDITIONAL SPOTTER ACTIVATION MAY BE NECESSARY AFTER SUNSET...MAINLY NORTH OF INTERSTATE 20.
Special weather statement, Jul 12, 3:30 PM CDT, 2 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 330 PM CDT FRI JUL 12 2002 THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS ALL OF NORTH TEXAS THIS EVENING AND OVERNIGHT. THE GREATEST THREAT WILL BE FROM DAMAGING DOWNBURST WINDS...VERY HEAVY RAIN...AND MARGINALLY SEVERE HAIL. THE FIRST AREA OF CONCERN IS ALONG AND SOUTH OF A JACKSBORO...TO CANTON LINE THROUGH LATE EVENING. SCATTERED TO NUMEROUS AFTERNOON THUNDERSTORMS WILL BE ON GOING AT LATE AFTERNOON... AND WILL CONTINUE THROUGH 9 OR 10 PM THIS EVENING. SOME OF THESE STORMS MAY BECOME MARGINALLY SEVERE DURING THEY LIFE CYCLE DUE AN UNSTABLE AIR MASS AND STRONG AFTERNOON HEATING. THE SECOND AREA OF CONCERN IS BETWEEN THE RED RIVER AND THE INTERSTATE 20 CORRIDOR. A THUNDERSTORM COMPLEX OVER SOUTH OKLAHOMA AT MID AFTERNOON WILL CONTINUE MOVING SOUTH AND MOVE ACROSS THE RED RIVER BEFORE 6 PM. THESE STORMS MAY SPREAD INTO THE METROPLEX BY 8 PM. IF THESE STORMS HOLD TOGETHER OVERNIGHT... THEY MAY MOVE INTO THE SOUTHERN HALF OF NORTH TEXAS AFTER 10 PM. THE MAJORITY OF THE THUNDERSTORMS WILL PRODUCE PERIODS OF MODERATE TO HEAVY RAIN AS WELL AS FREQUENT CLOUD TO GROUND LIGHTNING. HOWEVER...A FEW STORMS COULD BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WIND GUSTS AND MARGINALLY SEVERE HAIL. THE SLOW MOVEMENT OF SOME STORMS WILL ALSO BRING A THREAT OF LOCALIZED FLOODING... ESPECIALLY IN URBAN AREAS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD PREPARE FOR POSSIBLE ACTIVATION BETWEEN 4 AND 8 PM.
Special weather statement, Jul 12, 3:30 PM CDT, 2 hours 10 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-131000- HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS...CORRECTED FOR UGC CODING NATIONAL WEATHER SERVICE FORT WORTH TX 330 PM CDT FRI JUL 12 2002 THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS ALL OF NORTH TEXAS THIS EVENING AND OVERNIGHT. THE GREATEST THREAT WILL BE FROM DAMAGING DOWNBURST WINDS...VERY HEAVY RAIN...AND MARGINALLY SEVERE HAIL. THE FIRST AREA OF CONCERN IS ALONG AND SOUTH OF A JACKSBORO...TO CANTON LINE THROUGH LATE EVENING. SCATTERED TO NUMEROUS AFTERNOON THUNDERSTORMS WILL BE ON GOING AT LATE AFTERNOON... AND WILL CONTINUE THROUGH 9 OR 10 PM THIS EVENING. SOME OF THESE STORMS MAY BECOME MARGINALLY SEVERE DURING THEY LIFE CYCLE DUE AN UNSTABLE AIR MASS AND STRONG AFTERNOON HEATING. THE SECOND AREA OF CONCERN IS BETWEEN THE RED RIVER AND THE INTERSTATE 20 CORRIDOR. A THUNDERSTORM COMPLEX OVER SOUTH OKLAHOMA AT MID AFTERNOON WILL CONTINUE MOVING SOUTH AND MOVE ACROSS THE RED RIVER BEFORE 6 PM. THESE STORMS MAY SPREAD INTO THE METROPLEX BY 8 PM. IF THESE STORMS HOLD TOGETHER OVERNIGHT... THEY MAY MOVE INTO THE SOUTHERN HALF OF NORTH TEXAS AFTER 10 PM. THE MAJORITY OF THE THUNDERSTORMS WILL PRODUCE PERIODS OF MODERATE TO HEAVY RAIN AS WELL AS FREQUENT CLOUD TO GROUND LIGHTNING. HOWEVER...A FEW STORMS COULD BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WIND GUSTS AND MARGINALLY SEVERE HAIL. THE SLOW MOVEMENT OF SOME STORMS WILL ALSO BRING A THREAT OF LOCALIZED FLOODING... ESPECIALLY IN URBAN AREAS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTERS SHOULD PREPARE FOR POSSIBLE ACTIVATION BETWEEN 4 AND 8 PM.
Local storm report, Jul 12, 4:51 PM CDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
451 PM CDT FRI JUL 12 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0335 PM 5 S GRANBURY TX WIND DAMAGE
07/12/02 HOOD REPORTED BY LAW
ENFORCEMENT OFFICIAL.
THUNDERSTORM WINDS BLEW
OVER A CHURCH STEEPLE
AND DOWNED SEVERAL TREES.The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 4:04 PM CDT | Severe Thunderstorm Warning | FWD | Hill, Navarro | 41 min |
| Jul 12, 4:36 PM CDT | Severe Thunderstorm Warning | FWD | Wise | 39 min |
| Jul 12, 4:51 PM CDT | Severe Thunderstorm Warning | FWD | Henderson, Navarro | 39 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; radar from the NEXRAD Level II archive.