Alert archive / Texas / Tornado Watches in 1998

Tornado Watch 858

October 2, 1998Miller County, Arkansas; Caddo Parish, Louisiana; 50 counties in Texas

The Storm Prediction Center issued this tornado watch at Oct 2, 1998, 8:30 PM CDT for Miller County, Arkansas; Caddo Parish, Louisiana; 50 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Oct 2, 1998, 8:30 PM CDT (01:30 UTC)
Expired
Oct 3, 1998, 2:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 52 counties

Miller County, AR, Caddo Parish, LA, Anderson County, TX, Bosque County, TX, Brown County, TX, Callahan County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Dallas County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Hamilton County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Marion County, TX, Morris County, TX, Navarro County, TX, Palo Pinto County, TX, Panola County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Rusk County, TX, Shackelford County, TX, Shelby County, TX, Smith County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Throckmorton County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 8 km from the middle of the area, began a volume at 01:31 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

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

IssuedProductOfficeCountiesLasted
Oct 2, 8:40 PM CDTSevere Thunderstorm WarningFWDDallas, Tarrant65 min
Oct 2, 8:44 PM CDTSevere Thunderstorm WarningFWDPalo Pinto, Stephens61 min
Oct 2, 9:00 PM CDTFlash Flood WarningFWDCollin, Dallas, Denton, Tarrant3 hr
Oct 2, 9:00 PM CDTFlash Flood WarningFWDDelta, Hopkins, Hunt3 hr
Oct 2, 9:05 PM CDTSevere Thunderstorm WarningFWDParker55 min
Oct 2, 9:11 PM CDTSevere Thunderstorm WarningFWDEastland, Erath64 min
Oct 2, 9:25 PM CDTSevere Thunderstorm WarningSHVFranklin35 min
Oct 2, 9:31 PM CDTSevere Thunderstorm WarningSHVRed River, Titus49 min
Oct 2, 10:02 PM CDTSevere Thunderstorm WarningFWDErath, Palo Pinto58 min
Oct 2, 10:08 PM CDTSevere Thunderstorm WarningFWDHopkins, Hunt, Rains67 min
Oct 2, 10:15 PM CDTSevere Thunderstorm WarningFWDHood, Parker60 min
Oct 2, 10:19 PM CDTSevere Thunderstorm WarningSHVMorris31 min
Oct 2, 10:45 PM CDTSevere Thunderstorm WarningFWDJohnson60 min
Oct 2, 10:45 PM CDTSevere Thunderstorm WarningSHVWood60 min
Oct 2, 11:26 PM CDTSevere Thunderstorm WarningSHVUpshur44 min
Oct 2, 11:52 PM CDTSevere Thunderstorm WarningSHVMarion63 min
Oct 2, 11:58 PM CDTSevere Thunderstorm WarningFWDHood, Somervell62 min
Oct 3, 12:01 AM CDTSevere Thunderstorm WarningSHVHarrison64 min
Oct 3, 12:38 AM CDTSevere Thunderstorm WarningSHVBossier, Caddo47 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.5 hours before the alert went out and 24 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 1998-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2565 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 1998-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.19395878Sfc1 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
2565 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
908 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
329 m²/s²
Significant tornado parameter
4.2
Supercell composite
26.4

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
Oct 3, 3:45 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Clay, Cooke, Denton, Foard and 17 more5 hr

Nearby

Tornado Watches in Texas, 1998Tornado Watches in Arkansas, 1998Tornado Watches in Louisiana, 1998Every tornado 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.