Alert archive / Texas / Severe Thunderstorm Watches in 1998

Severe Thunderstorm Watch 63

February 25, 199812 counties in Arkansas; Choctaw County, McCurtain County, Pushmataha County, Oklahoma; 30 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Feb 25, 1998, 9:30 PM CST for 12 counties in Arkansas; Choctaw County, McCurtain County, Pushmataha County, Oklahoma; 30 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 25, 1998, 9:30 PM CST (03:30 UTC)
Expired
Feb 26, 1998, 3:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 45 counties

Clark County, AR, Garland County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Little River County, AR, Miller County, AR, Montgomery County, AR, Pike County, AR, Polk County, AR, Saline County, AR, Sevier County, AR, Choctaw County, OK, McCurtain County, OK, Pushmataha County, OK, Anderson County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Limestone County, TX, Marion County, TX, McLennan County, TX, Morris County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 142 km from the middle of the area, began a volume at 03:34 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 25, 9:30 PM CSTSevere Thunderstorm WarningTSAPushmataha45 min
Feb 25, 9:36 PM CSTSevere Thunderstorm WarningFWDBell, McLennan69 min
Feb 25, 9:43 PM CSTFlash Flood WarningFWDDallas2 hr
Feb 25, 10:38 PM CSTSevere Thunderstorm WarningFWDLimestone, Robertson67 min
Feb 25, 11:13 PM CSTSevere Thunderstorm WarningFWDFreestone, Leon62 min
Feb 25, 11:19 PM CSTSevere Thunderstorm WarningLZKPolk, Scott61 min
Feb 25, 11:43 PM CSTSevere Thunderstorm WarningFWDAnderson62 min
Feb 26, 12:02 AM CSTTornado WarningFWDAnderson43 min
Feb 26, 12:08 AM CSTSevere Thunderstorm WarningSHVCherokee, Smith62 min
Feb 26, 12:18 AM CSTSevere Thunderstorm WarningSHVCamp, Morris, Titus62 min
Feb 26, 12:18 AM CSTSevere Thunderstorm WarningSHVUpshur, Wood62 min
Feb 26, 12:31 AM CSTSevere Thunderstorm WarningSHVGregg49 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVBowie, Cass96 min
Feb 26, 12:39 AM CSTSevere Thunderstorm WarningSHVMarion96 min
Feb 26, 1:26 AM CSTSevere Thunderstorm WarningSHVMiller64 min
Feb 26, 1:39 AM CSTSevere Thunderstorm WarningSHVHempstead61 min
Feb 26, 1:48 AM CSTSevere Thunderstorm WarningLZKPike47 min
Feb 26, 2:37 AM CSTSevere Thunderstorm WarningLZKClark48 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 3.5 hours before the alert went out and 141 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, Fort Worth, TX at 00:00Z on 1998-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1012 joules per kilogram.LCLLFCEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 1998-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939587897117136Sfc1 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
1012 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1199 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 26, 2:15 AM CSTSevere Thunderstorm WatchSPCArkansas, Ashley, Bradley, Calhoun, Clark, Cleveland and 17 more5 hr
Feb 25, 8:30 PM CSTSevere Thunderstorm WatchSPCAtascosa, Bastrop, Bexar, Blanco, Burleson, Caldwell and 19 more6 hr
Feb 25, 9:30 PM CSTTornado WatchSPCAtascosa, Austin, Bastrop, Bee, Bell, Bexar and 31 more6 hr
Feb 26, 12:00 AM CSTSevere Thunderstorm WatchSPCAngelina, Austin, Brazoria, Chambers, Cherokee, Fort Bend and 25 more6 hr
Feb 26, 6:30 AM CSTSevere Thunderstorm WatchSPCChambers, Galveston, Hardin, Jasper, Jefferson, Newton and 3 more6 hr
Feb 26, 5:45 PM CSTSevere Thunderstorm WatchSPCBosque, Brown, Burnet, Comanche, Coryell, Edwards and 23 more4 hr

Nearby

Severe Thunderstorm Watches in Texas, 1998Severe Thunderstorm Watches in Arkansas, 1998Severe Thunderstorm Watches in Oklahoma, 1998Every severe thunderstorm watch in 1998

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.