Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 89, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 13, 2018, 7:53 PM CDT for 4 counties in Texas. It was in force for 67 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
- Apr 13, 2018, 7:53 PM CDT (00:53 UTC)
- Expired
- Apr 13, 2018, 9:00 PM CDT
- In force
- 67 min
- Issued by
- NWS Fort Worth, TX
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Hill County, TX, Limestone County, TX, McLennan County, TX, Navarro County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 98 km from the middle of the area, began a volume at 00:53 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 1:20 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.9 hours before the alert went out and 124 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
- 1159 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1818 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
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 Apr 13, 7:11 PM CDT, 42 minutes earlier.
Area forecast discussion, Apr 13, 7:11 PM CDT, 42 minutes before
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</html>Hazardous weather outlook, Apr 13, 2:41 PM CDT, 5 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Fort Worth TX 241 PM CDT Fri Apr 13 2018 TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-141200- 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- 241 PM CDT Fri Apr 13 2018 This Hazardous Weather Outlook is for North and Central Texas. .DAY ONE...This Afternoon and Tonight. Scattered thunderstorms will continue this afternoon and evening along and east of a dryline. This feature will be generally around I-35 and areas east through this evening. Some storms will be severe with very large hail and damaging winds. There will also be a threat for a tornado or two through the evening. Gusty west winds behind the dryline will continue through this evening. There will be a threat for rapidly spreading grass fires west of the dryline. A Red Flag Warning is in effect through late evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. There will be an elevated threat of grass fires west of I-35 on Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed this afternoon and evening. Dunn
In the hours before
Local storm report, Apr 13, 7:29 PM CDT, 24 minutes before
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</html>Local storm report, Apr 13, 7:30 PM CDT, 23 minutes before
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</html>Local storm report, Apr 13, 7:34 PM CDT, 19 minutes before
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</html>Local storm report, Apr 13, 7:38 PM CDT, 15 minutes before
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</html>Local storm report, Apr 13, 7:39 PM CDT, 14 minutes before
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</html>Local storm report, Apr 13, 7:48 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 |
|---|---|---|---|---|
| Apr 13, 7:07 PM CDT | Severe Thunderstorm Warning | FWD | Hill, Limestone, McLennan | 53 min |
| Apr 13, 7:21 PM CDT | Special Weather Statement | FWD | Coryell | 39 min |
| Apr 13, 7:26 PM CDT | Special Weather Statement | FWD | Lampasas | 34 min |
| Apr 13, 7:29 PM CDT | Severe Thunderstorm Warning | FWD | Coryell | 21 min |
| Apr 13, 7:58 PM CDT | Special Weather Statement | FWD | Coryell | 62 min |
| Apr 13, 7:59 PM CDT | Areal Flood Advisory | FWD | Fannin, Lamar | 2 hr |
| Apr 13, 8:42 PM CDT | Severe Thunderstorm Warning | FWD | Freestone, Limestone, Navarro | 63 min |
| Apr 13, 8:55 PM CDT | Severe Thunderstorm Warning | FWD | Henderson, Kaufman, Van Zandt | 65 min |
| Apr 13, 8:58 PM CDT | Severe Thunderstorm Warning | FWD | Bell | 62 min |
| Apr 13, 9:15 PM CDT | Severe Thunderstorm Warning | FWD | Anderson, Freestone, Henderson, Navarro | 45 min |
| Apr 13, 9:26 PM CDT | Special Weather Statement | FWD | Falls, Leon, Milam, Robertson | 79 min |
| Apr 13, 9:38 PM CDT | Severe Thunderstorm Warning | FWD | Henderson, Rains, Van Zandt | 44 min |
| Apr 13, 9:52 PM CDT | Severe Thunderstorm Warning | FWD | Anderson | 42 min |
| Apr 13, 9:55 PM CDT | Special Weather Statement | FWD | Hopkins | 35 min |
| Apr 13, 10:00 PM CDT | Special Weather Statement | FWD | Bell | 45 min |
| Apr 13, 10:23 PM CDT | Severe Thunderstorm Warning | FWD | Milam | 33 min |
| Apr 13, 11:02 PM CDT | Special Weather Statement | FWD | Lamar | 28 min |
| Apr 14, 3:35 AM CDT | Freeze Watch | FWD | Cooke, Grayson, Jack, Montague, Young | 17 hr |
| Apr 14, 3:35 AM CDT | Wind Advisory | FWD | Bell, Bosque, Comanche, Cooke, Coryell, Dallas and 20 more | 15 hr |
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.