Alert archive / Texas / Tornado Watches in 1998

Tornado Watch 311

May 8, 1998Union County, New Mexico; 10 counties in Oklahoma; 25 counties in Texas

The Storm Prediction Center issued this tornado watch at May 8, 1998, 2:00 PM MDT for Union County, New Mexico; 10 counties in Oklahoma; 25 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 8, 1998, 2:00 PM MDT (20:00 UTC)
Expired
May 8, 1998, 7:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center
All 36 counties

Union County, NM, Beaver County, OK, Beckham County, OK, Cimarron County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Roger Mills County, OK, Texas County, OK, Tillman County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 8, 2:15 PM MDTSevere Thunderstorm WarningAMAHartley60 min
May 8, 2:46 PM MDTSevere Thunderstorm WarningAMADallam64 min
May 8, 3:02 PM MDTSevere Thunderstorm WarningLUBSwisher33 min
May 8, 3:13 PM MDTTornado WarningLUBBriscoe, Floyd32 min
May 8, 3:40 PM MDTSevere Thunderstorm WarningAMACimarron65 min
May 8, 3:45 PM MDTTornado WarningLUBBriscoe, Hall50 min
May 8, 4:05 PM MDTSevere Thunderstorm WarningAMACollingsworth, Donley65 min
May 8, 4:17 PM MDTSevere Thunderstorm WarningLUBHall48 min
May 8, 6:57 PM MDTSevere Thunderstorm WarningOUNBeckham, Greer, Kiowa18 min

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.0 hours before the alert went out and 98 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, Amarillo Airport, TX at 12:00Z on 1998-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Amarillo Airport, TX at 12:00Z on 1998-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1677 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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
May 8, 12:15 PM MDTTornado WatchSPCCotton7 hr

Nearby

Tornado Watches in Texas, 1998Tornado Watches in Oklahoma, 1998Tornado Watches in New Mexico, 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.