Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 153, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 20, 2018, 10:15 PM CDT for Tarrant County, Texas. It was in force for 45 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
- Jun 20, 2018, 10:15 PM CDT (03:15 UTC)
- Expired
- Jun 20, 2018, 11:00 PM CDT
- In force
- 45 min
- Issued by
- NWS Fort Worth, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Tarrant County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 22 km from the middle of the area, began a volume at 03:14 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 00:00Z, 3.3 hours before the alert went out and 7 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
- 727 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1338 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.6
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 20, 10:09 PM CDT, 6 minutes earlier.
Area forecast discussion, Jun 20, 10:09 PM CDT, 6 minutes before
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Hazardous Weather Outlook...UPDATED National Weather Service Fort Worth TX 715 PM CDT Wed Jun 20 2018 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-220015- Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin- Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas- Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell- Johnson-Ellis-Henderson-Comanche-Mills-Hamilton-Bosque-Hill-Navarro- Freestone-Anderson-Lampasas-Coryell-Bell-McLennan-Falls-Limestone- Leon-Milam-Robertson- 715 PM CDT Wed Jun 20 2018 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...Tonight. Thunderstorms are possible this evening, primarily near and north of I-20/I-30. While severe weather is not anticipated, the strongest storms will be capable of producing strong wind gusts and small hail in addition to brief heavy rainfall. Isolated thunderstorms will then be possible overnight, mainly east of I-35. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorm chances will continue mostly east of Interstate 35 on Thursday. The main hazards will be locally heavy rainfall, gusty winds, and lightning. Thunderstorm complexes moving southeast from Oklahoma may affect parts of North Texas both Friday and Saturday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jun 20, 8:48 PM CDT, 1 hour 27 minutes before
Special Weather Statement National Weather Service Fort Worth TX 848 PM CDT WED JUN 20 2018 TXZ094-210215- Fannin TX- 848 PM CDT WED JUN 20 2018 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL FANNIN COUNTY UNTIL 915 PM CDT... At 846 PM CDT, Doppler radar was tracking a strong thunderstorm over Dodd City, or 7 miles east of Bonham, moving south at 5 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. The core of the storm should remain east of Bonham. LAT...LON 3347 9586 3349 9618 3366 9620 3368 9585 TIME...MOT...LOC 0146Z 350DEG 5KT 3359 9605 25
Special weather statement, Jun 20, 8:59 PM CDT, 1 hour 16 minutes before
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Special Weather Statement
National Weather Service Fort Worth TX
908 PM CDT WED JUN 20 2018
TXZ094-210230-
Fannin TX-
908 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN FANNIN COUNTY UNTIL
930 PM CDT...
At 907 PM CDT, Doppler radar was tracking a strong thunderstorm over
Dodd City, or 7 miles southeast of Bonham, moving south at 10 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
This strong thunderstorm will be near...
Bailey around 930 PM CDT.
The core of the storm will remain southeast of the city of Bonham.
LAT...LON 3360 9586 3341 9586 3340 9590 3336 9625
3361 9615
TIME...MOT...LOC 0207Z 006DEG 9KT 3354 9607
25Special weather statement, Jun 20, 9:17 PM CDT, 58 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
917 PM CDT WED JUN 20 2018
TXZ103-210245-
Denton TX-
917 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR DENTON COUNTY UNTIL 945 PM CDT...
At 915 PM CDT, Doppler radar was tracking strong thunderstorms
within Denton County. Movement was southwest at 20 mph.
Winds in excess of 40 mph will be possible with these storms. At 915
PM CDT, the leading edge of these outflow winds had reached Corinth,
Lake Dallas, and Hackberry.
LAT...LON 3341 9684 3299 9685 3299 9740 3300 9740
3343 9738
TIME...MOT...LOC 0215Z 029DEG 18KT 3315 9712 3313 9703 3314 9694
25Special weather statement, Jun 20, 9:39 PM CDT, 36 minutes before
Special Weather Statement
National Weather Service Fort Worth TX
939 PM CDT WED JUN 20 2018
TXZ103-118-119-210300-
Denton TX-Tarrant TX-Dallas TX-
939 PM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN DENTON...NORTHEASTERN
TARRANT AND NORTHWESTERN DALLAS COUNTIES UNTIL 1000 PM CDT...
At 936 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms in Denton County, moving south at 20 mph.
Pea hail and wind gusts up to 50 mph will be possible with these
storms.
The leading edge of the strong outflow winds have reached New
Fairview, Roanoke, and Carrollton. The strongest winds will impact
northeastern portions of Tarrant County, including Keller,
Southlake, and Grapevine.
LAT...LON 3308 9719 3307 9684 3281 9684 3283 9725
3299 9740 3323 9739
TIME...MOT...LOC 0236Z 009DEG 19KT 3316 9740 3301 9721 3300 9692
25Local storm report, Jun 20, 10:10 PM CDT, 5 minutes before
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</html>The office that day
Everything else NWS Fort Worth, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:13 PM CDT | Special Weather Statement | FWD | Cooke, Grayson | 47 min |
| Jun 20, 7:59 PM CDT | Special Weather Statement | FWD | Fannin | 46 min |
| Jun 20, 8:04 PM CDT | Special Weather Statement | FWD | Cooke, Grayson | 41 min |
| Jun 20, 8:17 PM CDT | Severe Thunderstorm Warning | FWD | Collin, Grayson | 46 min |
| Jun 20, 8:48 PM CDT | Special Weather Statement | FWD | Fannin | 27 min |
| Jun 20, 8:59 PM CDT | Special Weather Statement | FWD | Denton | 31 min |
| Jun 20, 9:08 PM CDT | Special Weather Statement | FWD | Fannin | 22 min |
| Jun 20, 9:17 PM CDT | Special Weather Statement | FWD | Denton | 28 min |
| Jun 20, 9:39 PM CDT | Special Weather Statement | FWD | Denton | 21 min |
| Jun 20, 9:54 PM CDT | Severe Thunderstorm Warning | FWD | Dallas, Denton, Tarrant | 21 min |
| Jun 21, 12:13 AM CDT | Special Weather Statement | FWD | Palo Pinto | 32 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2018Every severe thunderstorm warning in 2018
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.