Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 10, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 29, 2007, 9:21 AM CDT for Jack County, Young County, Texas. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 29, 2007, 9:21 AM CDT (14:21 UTC)
- Expired
- Mar 29, 2007, 9:54 AM CDT
- In force
- 33 min
- Issued by
- NWS Fort Worth, TX
- Area
- Counties, with a storm outline in the text
Counties Jack County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 107 km from the middle of the area, began a volume at 14:23 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.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 2.4 hours before the alert went out and 114 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
- 447 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 674 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 425 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Mar 29, 7:13 AM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, Mar 29, 7:13 AM CDT, 2 hours 8 minutes before
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</html>Hazardous weather outlook, Mar 29, 3:30 AM CDT, 5 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 330 AM CDT THU MAR 29 2007 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-301000- ANDERSON-BELL-BOSQUE-COLLIN-COMANCHE-COOKE-CORYELL-DALLAS-DELTA- DENTON-EASTLAND-ELLIS-ERATH-FALLS-FANNIN-FREESTONE-GRAYSON-HAMILTON- HENDERSON-HILL-HOOD-HOPKINS-HUNT-JACK-JOHNSON-KAUFMAN-LAMAR-LAMPASAS- LEON-LIMESTONE-MCLENNAN-MILAM-MILLS-MONTAGUE-NAVARRO-PALO PINTO- PARKER-RAINS-ROBERTSON-ROCKWALL-SOMERVELL-STEPHENS-TARRANT-VAN ZANDT- WISE-YOUNG- 330 AM CDT THU MAR 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS. .DAY ONE... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND THIS EVENING ACROSS THE WESTERN TWO THIRDS OF NORTH TEXAS...GENERALLY WEST OF A PARIS...CORSICANA...TO CAMERON LINE. A POWERFUL UPPER LEVEL DISTURBANCE WILL REMAIN NEAR THE 4 CORNERS TODAY WHILE ABUNDANT LOW LEVEL MOISTURE REMAINS IN PLACE AHEAD OF AN APPROACHING DRY LINE. INITIALLY...THUNDERSTORMS WILL REACH THE EXTREME WESTERN PORTIONS OF NORTH TEXAS THIS MORNING AS A BROKEN SQUALL LINE APPROACHES FROM WEST TEXAS. THE SQUALL LINE IS EXPECTED TO WEAKEN AS MOVES INTO NORTH TEXAS. HOWEVER...A FEW SEVERE STORMS WITH DAMAGING DOWNBURST WINDS AND PENNY SIZE HAIL WILL BE POSSIBLE. THUNDERSTORM CHANCES WILL INCREASE THIS AFTERNOON AND TONIGHT AS THE DRY LINE REACHES THE EXTREME WESTERN PORTIONS OF NORTH TEXAS AND STORMS MOVE NORTHEAST ACROSS THE AREA. THE MAIN HAZARDS WILL BE DAMAGING DOWNBURST WINDS AND LARGE HAIL. HOWEVER...A TORNADO OR TWO CANT BE RULED OUT...ESPECIALLY WEST OF A JACKSBORO...GLEN ROSE...TO GATESVILLE LINE. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE THIS AFTERNOON AND TONIGHT MAINLY WEST OF INTERSTATE 35. .DAYS TWO THROUGH SEVEN... THE POTENTIAL FOR SEVERE THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL WILL CONTINUE ACROSS MOST OF NORTH TEXAS FRIDAY AS LARGE SCALE ASCENT REMAINS IN PLACE. THE BEST CHANCE OF STORMS WILL BE FRIDAY NIGHT AND EARLY SATURDAY MORNING WHEN A COLD FRONT MOVES ACROSS THE REGION. DAMAGING DOWNBURST WINDS AND LARGE HAIL WILL BE THE MAIN HAZARDS. HOWEVER...ISOLATED TORNADOES CANT BE RULED OUT. ADDITIONAL RAINFALL AMOUNTS BETWEEN ONE AND TWO INCHES OVER ALREADY SATURATED SOIL WILL INCREASE THE RISK OF FLASH FLOODING. STORMS WILL QUICKLY END FOR WEST TO EAST SATURDAY MORNING. ANOTHER UPPER LEVEL DISTURBANCE AND COLD FRONT WILL BRING A SLIGHT CHANCE OF THUNDERSTORMS TUESDAY AND WEDNESDAY OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... LIMITED SPOTTER ACTIVATION MAY BE REQUESTED BEFORE NOON WEST OF A BOWIE...GRANBURY...GATESVILLE LINE. SPOTTER ACTIVATION IS POSSIBLE FOR LOCATIONS ALONG AND WEST OF INTERSTATE 35 BY 4 PM.
In the hours before
Special weather statement, Mar 29, 8:57 AM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FORT WORTH TX 857 AM CDT THU MAR 29 2007 TXZ100-101-115-291500- JACK TX-YOUNG TX-STEPHENS TX- 857 AM CDT THU MAR 29 2007 ...SIGNIFICANT WEATHER ADVISORY FOR... SOUTHERN JACK COUNTY NORTHEASTERN STEPHENS COUNTY EASTERN YOUNG COUNTY AT 857 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 17 MILES SOUTH OF GRAHAM...MOVING NORTHEAST AT 35 MPH. CITIES IN THE PATH OF THIS STORM INCLUDE BRYSON...GRAHAM AND JACKSBORO. FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL TO AN INCH PER HOUR...PEA-SIZED HAIL...AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS STORM. IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED. LAT...LON 3285 9877 3276 9859 3321 9805 3343 9857
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 8:57 AM CDT | Special Weather Statement | FWD | Jack | 63 min |
| Mar 29, 10:12 AM CDT | Flash Flood Watch | FWD | Anderson, Bell, Bosque, Collin, Comanche, Cooke and 40 more | 44 hr |
| Mar 29, 10:21 AM CDT | Special Weather Statement | FWD | Montague | 24 min |
| Mar 29, 11:13 AM CDT | Special Weather Statement | FWD | Jack, Palo Pinto | 32 min |
| Mar 29, 11:30 AM CDT | Severe Thunderstorm Warning | FWD | Jack, Palo Pinto | 60 min |
| Mar 29, 11:40 AM CDT | Special Weather Statement | FWD | Eastland | 35 min |
| Mar 29, 12:04 PM CDT | Special Weather Statement | FWD | Mills | 26 min |
| Mar 29, 12:14 PM CDT | Special Weather Statement | FWD | Wise | 31 min |
| Mar 29, 12:18 PM CDT | Special Weather Statement | FWD | Erath | 57 min |
| Mar 29, 12:22 PM CDT | Special Weather Statement | FWD | Palo Pinto, Parker | 53 min |
| Mar 29, 12:53 PM CDT | Special Weather Statement | FWD | Mills | 37 min |
| Mar 29, 1:57 PM CDT | Special Weather Statement | FWD | Montague | 33 min |
| Mar 29, 2:01 PM CDT | Special Weather Statement | FWD | Hamilton | 44 min |
| Mar 29, 2:07 PM CDT | Special Weather Statement | FWD | Parker | 23 min |
| Mar 29, 2:34 PM CDT | Special Weather Statement | FWD | Hamilton | 26 min |
| Mar 29, 2:40 PM CDT | Special Weather Statement | FWD | Parker | 35 min |
| Mar 29, 3:09 PM CDT | Special Weather Statement | FWD | Wise | 36 min |
| Mar 29, 4:02 PM CDT | Special Weather Statement | FWD | Hill | 28 min |
| Mar 29, 4:11 PM CDT | Special Weather Statement | FWD | McLennan | 34 min |
| Mar 29, 4:40 PM CDT | Flash Flood Warning | FWD | Bosque, Hill | 3 hr |
| Mar 29, 4:50 PM CDT | Special Weather Statement | FWD | Hill, Limestone, McLennan | 25 min |
| Mar 29, 5:15 PM CDT | Special Weather Statement | FWD | Freestone, Hill, Limestone, McLennan, Navarro | 30 min |
| Mar 29, 5:24 PM CDT | Special Weather Statement | FWD | Collin, Dallas, Denton, Ellis, Johnson, Tarrant | 96 min |
| Mar 29, 5:30 PM CDT | Special Weather Statement | FWD | Collin, Dallas, Denton, Ellis, Johnson, Tarrant | 90 min |
| Mar 29, 5:52 PM CDT | Special Weather Statement | FWD | Navarro | 23 min |
| Mar 29, 5:57 PM CDT | Special Weather Statement | FWD | Ellis | 33 min |
| Mar 29, 6:19 PM CDT | Severe Thunderstorm Warning | FWD | Navarro | 56 min |
| Mar 29, 6:43 PM CDT | Flash Flood Warning | FWD | Ellis | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007
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; radar from the NEXRAD Level II archive.