Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 185, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 21, 2001, 3:37 PM CDT for Denton County, Texas. It was in force for 53 min. 2 reports 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
- Jun 21, 2001, 3:37 PM CDT (20:37 UTC)
- Expired
- Jun 21, 2001, 4:30 PM CDT
- In force
- 53 min
- Issued by
- NWS Fort Worth, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Denton County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 72 km from the middle of the area, began a volume at 20:38 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 |
|---|---|---|---|
| Jun 21, 4:15 PM CDT | Hail 0.88 | Denton, TX | |
| Jun 21, 4:18 PM CDT | Hail 1.5 | Denton, TX | Occurred in the north part of town. |
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, 8.6 hours before the alert went out and 45 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
- 566 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1284 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 3:25 PM CDT, 12 minutes earlier.
Area forecast discussion, Jun 21, 3:25 PM CDT, 12 minutes before
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</html>In the hours before
Special weather statement, Jun 21, 11:58 AM CDT, 3 hours 39 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-212100- HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS NATIONAL WEATHER SERVICE FORT WORTH TX 1158 AM CDT THU JUN 21 2001 SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON AND TONIGHT AS A COLD FRONT MOVES THROUGH THE REGION. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE. CLOUD TO GROUND LIGHTNING WILL BE THE HAZARDOUS WEATHER THREAT.
Special weather statement, Jun 21, 1:50 PM CDT, 1 hour 47 minutes before
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-212100- HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS...UPDATED NATIONAL WEATHER SERVICE FORT WORTH TX 150 PM CDT THU JUN 21 2001 SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND TONIGHT ALONG TWO BOUNDARIES. ONE BOUNDARY IS AN OUTFLOW BOUNDARY THAT EXTENDED FROM DENTON...TO MINERAL WELLS...TO JUST NORTH OF BROWNWOOD EARLY THIS AFTERNOON. THE OTHER BOUNDARY IS A COLD FRONT THAT EXTENDED FROM EAST CENTRAL OKLAHOMA....TO SOUTH OF WICHITA FALLS. THE FRONT WILL MOVE SOUTHEAST THROUGH THE REGION THIS AFTERNOON AND TONIGHT. THE STORMS ARE NOT EXPECTED TO BECOME SEVERE. CLOUD TO GROUND LIGHTNING AND WIND GUSTS UP TO 40 MPH WILL BE THE HAZARDOUS WEATHER THREAT.
The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 3:17 PM CDT | Severe Thunderstorm Warning | FWD | Grayson | 58 min |
| Jun 21, 3:24 PM CDT | Severe Thunderstorm Warning | FWD | Tarrant | 66 min |
| Jun 21, 3:55 PM CDT | Severe Thunderstorm Warning | FWD | Parker | 50 min |
| Jun 21, 4:09 PM CDT | Severe Thunderstorm Warning | FWD | Fannin | 36 min |
| Jun 21, 4:31 PM CDT | Severe Thunderstorm Warning | FWD | Tarrant | 29 min |
| Jun 21, 4:34 PM CDT | Severe Thunderstorm Warning | FWD | Denton | 41 min |
| Jun 21, 5:25 PM CDT | Severe Thunderstorm Warning | FWD | Hood | 50 min |
| Jun 21, 5:45 PM CDT | Severe Thunderstorm Warning | FWD | Rains, Van Zandt | 45 min |
| Jun 21, 6:45 PM CDT | Severe Thunderstorm Warning | FWD | Erath | 30 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.