Alert archive / Texas / Tornado Watches in 1998

Tornado Watch 438

May 26, 19986 counties in New Mexico; 28 counties in Texas

The Storm Prediction Center issued this tornado watch at May 26, 1998, 4:15 PM MDT for 6 counties in New Mexico; 28 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 26, 1998, 4:15 PM MDT (22:15 UTC)
Expired
May 26, 1998, 9:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center
All 34 counties

Chaves County, NM, De Baca County, NM, Guadalupe County, NM, Lea County, NM, Roosevelt County, NM, San Miguel County, NM, Andrews County, TX, Bailey County, TX, Borden County, TX, Cochran County, TX, Coke County, TX, Concho County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Glasscock County, TX, Hockley County, TX, Howard County, TX, Irion County, TX, Kimble County, TX, Lynn County, TX, Martin County, TX, Menard County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Terry County, TX, Tom Green County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 111 km from the middle of the area, began a volume at 22:15 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

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

IssuedProductOfficeCountiesLasted
May 26, 4:18 PM MDTFlash Flood WarningMAFAndrews3 hr
May 26, 4:24 PM MDTSevere Thunderstorm WarningMAFAndrews61 min
May 26, 4:26 PM MDTSevere Thunderstorm WarningSJTTom Green64 min
May 26, 4:37 PM MDTTornado WarningSJTTom Green63 min
May 26, 4:48 PM MDTTornado WarningABQRoosevelt47 min
May 26, 4:49 PM MDTTornado WarningMAFAndrews51 min
May 26, 4:49 PM MDTSevere Thunderstorm WarningSJTCoke51 min
May 26, 4:57 PM MDTSevere Thunderstorm WarningMAFEctor63 min
May 26, 5:19 PM MDTFlash Flood WarningSJTCoke, Tom Green3 hr
May 26, 5:35 PM MDTSevere Thunderstorm WarningMAFMartin65 min
May 26, 5:38 PM MDTSevere Thunderstorm WarningMAFLea62 min
May 26, 5:39 PM MDTSevere Thunderstorm WarningMAFAndrews51 min
May 26, 5:39 PM MDTTornado WarningSJTTom Green61 min
May 26, 5:54 PM MDTSevere Thunderstorm WarningMAFEctor61 min
May 26, 5:57 PM MDTTornado WarningSJTTom Green63 min
May 26, 6:06 PM MDTSevere Thunderstorm WarningSJTCoke64 min
May 26, 6:07 PM MDTTornado WarningABQRoosevelt48 min
May 26, 6:07 PM MDTSevere Thunderstorm WarningMAFHoward63 min
May 26, 6:36 PM MDTSevere Thunderstorm WarningMAFMartin64 min
May 26, 6:39 PM MDTSevere Thunderstorm WarningSJTSterling61 min
May 26, 6:42 PM MDTSevere Thunderstorm WarningSJTRunnels63 min
May 26, 6:49 PM MDTSevere Thunderstorm WarningMAFEctor, Midland61 min
May 26, 7:00 PM MDTTornado WarningSJTTom Green60 min
May 26, 7:06 PM MDTFlash Flood WarningSJTRunnels3 hr
May 26, 7:08 PM MDTSevere Thunderstorm WarningMAFHoward47 min
May 26, 7:15 PM MDTTornado WarningSJTConcho, Tom Green80 min
May 26, 7:19 PM MDTSevere Thunderstorm WarningSJTTom Green91 min
May 26, 7:21 PM MDTFlash Flood WarningMAFAndrews2 hr
May 26, 7:30 PM MDTSevere Thunderstorm WarningSJTSterling65 min
May 26, 7:40 PM MDTSevere Thunderstorm WarningSJTMitchell80 min
May 26, 7:45 PM MDTSevere Thunderstorm WarningSJTRunnels65 min
May 26, 7:50 PM MDTSevere Thunderstorm WarningMAFGlasscock65 min
May 26, 7:50 PM MDTFlash Flood WarningSJTMitchell, Sterling3 hr
May 26, 7:56 PM MDTSevere Thunderstorm WarningMAFHoward64 min
May 26, 8:01 PM MDTSevere Thunderstorm WarningABQChaves39 min
May 26, 8:05 PM MDTFlash Flood WarningSJTConcho, Runnels, Tom Green4 hr
May 26, 8:28 PM MDTTornado WarningSJTConcho, Runnels, Tom Green62 min
May 26, 8:31 PM MDTSevere Thunderstorm WarningSJTSterling64 min
May 26, 8:33 PM MDTFlash Flood WarningMAFGlasscock3 hr
May 26, 8:42 PM MDTSevere Thunderstorm WarningABQChaves48 min
May 26, 8:51 PM MDTSevere Thunderstorm WarningSJTIrion, Tom Green79 min
May 26, 8:57 PM MDTSevere Thunderstorm WarningMAFGlasscock63 min

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.3 hours before the alert went out and 172 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 12:00Z on 1998-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2480 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, Midland Regional, TX at 12:00Z on 1998-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 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
2480 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
561 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

829 
WWUS9 KMKC 262157
SEL8  
MKC WW 262157
TXZ000-NMZ000-270300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 438
STORM PREDICTION CENTER NORMAN OK
457 PM CDT TUE MAY 26 1998

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   WEST TEXAS                              
   EAST CENTRAL NEW MEXICO                         

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 515 PM UNTIL 1000
PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 110 MILES NORTH NORTHWEST OF ROSWELL NEW
MEXICO TO 20 MILES NORTHEAST OF JUNCTION TEXAS.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 430...WW 431...WW
432...WW 433...WW 434...WW 435...WW 436...WW 437...

DISCUSSION...EXTREME INSTABLITY /SURFACE-BASED CAPE TO 5000
J/KG/...COUPLED WITH VEERING WIND PROFILES AND UPLSOPE FLOW IN
VICINITY OF BOUNDARIES LEFTOVER FROM YESTERDAY...LIKELY TO RESULT
IN SCATTERED SLOW-MOVING SUPERCELLS WITH VERY LARGE HAIL/DAMAGING
WINDS AND ISOLATED TORNADOES.    

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. 
MEAN STORM MOTION VECTOR 27020.


...CORFIDI

354,1051 314,0993 294,0993 334,1051

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 2:45 PM MDTTornado WatchSPCChaves, Eddy, Lea6 hr
May 25, 8:00 PM MDTSevere Thunderstorm WatchSPCArcher, Baylor, Bosque, Brown, Callahan, Childress and 37 more6 hr
May 25, 11:00 PM MDTSevere Thunderstorm WatchSPCAndrews, Coke, Crane, Crockett, Ector, Glasscock and 14 more6 hr
May 26, 1:45 AM MDTSevere Thunderstorm WatchSPCBrown, Burnet, Callahan, Coleman, Comanche, Concho and 14 more5 hr
May 26, 12:30 PM MDTSevere Thunderstorm WatchSPCCass, Gregg, Harrison, Marion, Morris, Nacogdoches and 5 more6 hr

Nearby

Tornado Watches in Texas, 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; radar from the NEXRAD Level II archive.