Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 87, NWS San Angelo, TX

April 8, 2008Menard County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 8, 2008, 7:25 PM CDT for Menard County, Texas. It was in force for 35 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 8, 2008, 7:25 PM CDT (00:25 UTC)
Expired: Apr 8, 2008, 8:00 PM CDT
In force: 35 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

County Menard County, TX

The radar

The San Angelo radar (KSJT), 83 km from the middle of the area, began a volume at 00:28 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

Del Rio, TX (KDRT), launched 00:00Z, 0.4 hours before the alert went out and 195 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 707 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2246 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 7:00 PM CDT, 25 minutes earlier.

Area forecast discussion, Apr 8, 7:00 PM CDT, 25 minutes before

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Hazardous weather outlook, Apr 8, 2:35 PM CDT, 4 hours 50 minutes before

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In the hours before

Special weather statement, Apr 8, 3:00 PM CDT, 4 hours 25 minutes before

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Special weather statement, Apr 8, 6:37 PM CDT, 48 minutes before

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Special weather statement, Apr 8, 6:58 PM CDT, 27 minutes before

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Special weather statement, Apr 8, 7:10 PM CDT, 15 minutes before

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The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 7:49 PM CDT	Severe Thunderstorm Warning	SJT	Mason, Menard	26 min
Apr 8, 8:17 PM CDT	Severe Thunderstorm Warning	SJT	Mason, Menard	43 min
Apr 8, 9:25 PM CDT	Severe Thunderstorm Warning	SJT	Mason	25 min
Apr 9, 4:16 AM CDT	Fire Weather Watch	SJT	Brown, Callahan, Coke, Coleman, Concho, Crockett and 18 more	25 hr
Apr 9, 2:58 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	32 min
Apr 9, 3:15 PM CDT	Tornado Warning	SJT	Jones, Taylor	45 min
Apr 9, 3:23 PM CDT	Tornado Warning	SJT	Fisher, Nolan	52 min
Apr 9, 3:35 PM CDT	Tornado Warning	SJT	Jones, Taylor	40 min
Apr 9, 3:54 PM CDT	Tornado Warning	SJT	Callahan, Taylor	36 min
Apr 9, 3:57 PM CDT	Tornado Warning	SJT	Jones, Shackelford	48 min
Apr 9, 4:04 PM CDT	Tornado Warning	SJT	Fisher, Jones	26 min
Apr 9, 4:13 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	32 min
Apr 9, 4:44 PM CDT	Tornado Warning	SJT	Shackelford	31 min
Apr 9, 4:57 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Throckmorton	32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.