Alert archive / Texas / Special Weather Statements in 2021
Special Weather Statement, NWS Fort Worth, TX
NWS Fort Worth, TX issued this special weather statement at Aug 1, 2021, 5:21 PM CDT for Ellis County, Texas. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2021, 5:21 PM CDT (22:21 UTC)
- Expired
- Aug 1, 2021, 6:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Fort Worth, TX
County Ellis County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 38 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 50 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
- 2139 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1284 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
917
WWUS84 KFWD 012221
SPSFWD
Special Weather Statement
National Weather Service Fort Worth TX
521 PM CDT Sun Aug 1 2021
TXZ119-134-012300-
Ellis TX-Dallas TX-
521 PM CDT Sun Aug 1 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ELLIS AND SOUTHERN
DALLAS COUNTIES UNTIL 600 PM CDT...
At 521 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Duncanville to near Midlothian. Movement was
east at 25 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Dallas, Grand Prairie, Desoto, Cedar Hill, Duncanville, Lancaster,
Waxahachie, Balch Springs, Midlothian, Glenn Heights, Red Oak,
Hutchins, Wilmer, Ovilla, Ferris, Oak Leaf, Cedar Hill State Park and
Pecan Hill.
LAT...LON 3237 9675 3240 9706 3255 9705 3255 9704
3270 9704 3270 9663
TIME...MOT...LOC 2221Z 280DEG 20KT 3266 9692 3247 9698
$$
HernandezThe office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 2:13 PM CDT | Special Weather Statement | FWD | Hopkins | 32 min |
| Aug 1, 2:40 PM CDT | Special Weather Statement | FWD | Hunt | 35 min |
| Aug 1, 3:10 PM CDT | Special Weather Statement | FWD | Tarrant | 35 min |
| Aug 1, 3:27 PM CDT | Severe Thunderstorm Warning | FWD | Tarrant | 33 min |
| Aug 1, 3:34 PM CDT | Severe Thunderstorm Warning | FWD | Hill, Johnson | 38 min |
| Aug 1, 3:46 PM CDT | Special Weather Statement | FWD | Dallas | 29 min |
| Aug 1, 3:50 PM CDT | Severe Thunderstorm Warning | FWD | Dallas, Tarrant | 40 min |
| Aug 1, 4:00 PM CDT | Special Weather Statement | FWD | Mills | 45 min |
| Aug 1, 4:20 PM CDT | Special Weather Statement | FWD | Johnson | 25 min |
| Aug 1, 4:30 PM CDT | Special Weather Statement | FWD | Tarrant | 30 min |
| Aug 1, 4:39 PM CDT | Special Weather Statement | FWD | Parker | 36 min |
| Aug 1, 4:53 PM CDT | Areal Flood Advisory | FWD | Johnson, Tarrant | 3 hr |
| Aug 1, 5:02 PM CDT | Severe Thunderstorm Warning | FWD | Collin, Dallas, Denton | 21 min |
| Aug 1, 5:12 PM CDT | Areal Flood Advisory | FWD | Parker | 3 hr |
| Aug 1, 5:46 PM CDT | Special Weather Statement | FWD | Wise | 29 min |
| Aug 1, 5:55 PM CDT | Severe Thunderstorm Warning | FWD | Denton, Wise | 15 min |
Nearby
Special Weather Statements in Texas, 2021Every special weather statement in 2021
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.