Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 57

April 8, 2004Lea County, New Mexico; 5 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 8, 2004, 6:40 PM MDT for Lea County, New Mexico; 5 counties in Texas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 8, 2004, 6:40 PM MDT (00:40 UTC)
Expired
Apr 8, 2004, 11:00 PM MDT
In force
4 hr
Issued by
the Storm Prediction Center

Counties Lea County, NM, Cochran County, TX, Gaines County, TX, Hockley County, TX, Terry County, TX, Yoakum County, TX

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 8, 6:56 PM MDTSevere Thunderstorm WarningLUBCochran, Yoakum64 min
Apr 8, 7:15 PM MDTSevere Thunderstorm WarningMAFLea45 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.7 hours before the alert went out and 133 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-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2004-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 846 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2004-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
846 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1631 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 8, 6:19 PM MDTMesoscale DiscussionSPCEddy, Lea, Roosevelt26 min
Apr 8, 7:42 PM MDTMesoscale DiscussionSPCLea63 min
Apr 8, 9:18 PM MDTMesoscale DiscussionSPCLea57 min
Apr 9, 3:20 PM MDTMesoscale DiscussionSPCHarding, Quay, Union115 min
Apr 9, 2:32 PM MDTMesoscale DiscussionSPCCollin, Cooke, Denton, Fannin, Grayson, Lamar88 min
Apr 9, 4:49 PM MDTMesoscale DiscussionSPCBrown, Burnet, Callahan, Coleman, Comanche, Concho and 17 more86 min

Nearby

Severe Thunderstorm Watches in Texas, 2004Severe Thunderstorm Watches in New Mexico, 2004Every severe thunderstorm watch in 2004

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.