Alert archive / Texas / Special Weather Statements in 2017
Special Weather Statement, NWS Fort Worth, TX
NWS Fort Worth, TX issued this special weather statement at Aug 4, 2017, 6:21 PM CDT for Fannin 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 4, 2017, 6:21 PM CDT (23:21 UTC)
- Expired
- Aug 4, 2017, 7:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Fort Worth, TX
County Fannin County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 136 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 116 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
- 910 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1087 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
781
WWUS84 KFWD 042321
SPSFWD
Special Weather Statement
National Weather Service Fort Worth TX
621 PM CDT FRI AUG 4 2017
TXZ094-050000-
Fannin TX-
621 PM CDT FRI AUG 4 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN FANNIN COUNTY UNTIL
700 PM CDT...
At 621 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ector, or 9 miles southwest of Bonham, moving south at 10 mph.
Half inch hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Bonham, Leonard, Whitewright, Ector, Bailey and Trenton.
LAT...LON 3338 9612 3334 9638 3344 9639 3347 9639
3348 9638 3357 9638 3360 9618
TIME...MOT...LOC 2321Z 351DEG 8KT 3349 9628
$$
CarlawThe office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 3:51 PM CDT | Special Weather Statement | FWD | Grayson | 39 min |
| Aug 4, 4:51 PM CDT | Special Weather Statement | FWD | Collin | 39 min |
| Aug 4, 5:30 PM CDT | Special Weather Statement | FWD | Collin | 30 min |
| Aug 4, 6:00 PM CDT | Special Weather Statement | FWD | Dallas | 45 min |
Nearby
Special Weather Statements in Texas, 2017Every special weather statement in 2017
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.