Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 37, NWS Fort Worth, TX
NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 27, 2018, 10:18 PM CDT for Somervell County, Texas. It was in force for 27 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
- Mar 27, 2018, 10:18 PM CDT (03:18 UTC)
- Expired
- Mar 27, 2018, 10:45 PM CDT
- In force
- 27 min
- Issued by
- NWS Fort Worth, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Somervell County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 59 km from the middle of the area, began a volume at 03:18 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
Shreveport, LA (KBAD), launched 00:00Z, 3.3 hours before the alert went out and 379 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
- 171 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1231 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 112 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 Mar 27, 3:47 PM CDT, 6 hours 31 minutes earlier.
Area forecast discussion, Mar 27, 3:47 PM CDT, 6 hours 31 minutes before
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</html>Hazardous weather outlook, Mar 27, 3:48 PM CDT, 6 hours 30 minutes before
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</head>
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<main class="wrap">
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 |
|---|---|---|---|---|
| Mar 27, 8:58 PM CDT | Severe Thunderstorm Warning | FWD | Comanche | 47 min |
| Mar 27, 9:34 PM CDT | Special Weather Statement | FWD | Erath | 26 min |
| Mar 27, 10:09 PM CDT | Special Weather Statement | FWD | Somervell | 36 min |
| Mar 27, 10:29 PM CDT | Severe Thunderstorm Warning | FWD | Hood, Johnson | 61 min |
| Mar 27, 11:06 PM CDT | Special Weather Statement | FWD | Tarrant | 39 min |
| Mar 28, 7:07 AM CDT | Special Weather Statement | FWD | Freestone, Limestone, Navarro, Robertson | 38 min |
| Mar 28, 9:59 AM CDT | River Flood Warning | FWD | Henderson, Navarro | 5 days |
| Mar 28, 11:45 AM CDT | Areal Flood Advisory | FWD | Milam, Robertson | 3 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.