Alert archive / Texas / Tornado Watches in 2003

Tornado Watch 596

June 26, 200310 counties in Texas

The Storm Prediction Center issued this tornado watch at Jun 26, 2003, 1:35 PM CDT for 10 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 26, 2003, 1:35 PM CDT (18:35 UTC)
Expired
Jun 26, 2003, 7:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Brewster County, TX, Crockett County, TX, Culberson County, TX, Jeff Davis County, TX, Pecos County, TX, Presidio County, TX, Reeves County, TX, Terrell County, TX, Val Verde County, TX, Ward County, TX

The radar

The Midland/Odessa radar (KMAF), 158 km from the middle of the area, began a volume at 18:36 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

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

IssuedProductOfficeCountiesLasted
Jun 26, 2:10 PM CDTSevere Thunderstorm WarningMAFJeff Davis80 min
Jun 26, 3:02 PM CDTSevere Thunderstorm WarningMAFTerrell73 min
Jun 26, 3:14 PM CDTSevere Thunderstorm WarningMAFJeff Davis61 min
Jun 26, 3:30 PM CDTFlash Flood WarningMAFJeff Davis3 hr

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 12:00Z, 6.6 hours before the alert went out and 158 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 2003-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1017 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2003-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 square meters per square second.1939Sfc1 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
1017 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 261833
SEL6  
SPC WW 261835
TXZ000-270000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 596 
NWS STORM PREDICTION CENTER NORMAN OK 
135 PM CDT THU JUN 26 2003

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

       SOUTHWEST TEXAS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 135 PM UNTIL
700 PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 50 MILES SOUTH OF GUADALUPE PASS TEXAS TO 35
MILES NORTH NORTHEAST OF DEL RIO 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 595...


DISCUSSION...A FEW SUPERCELLS WITH VERY LARGE HAIL/LOCALLY DAMAGING
WIND AND A COUPLE TORNADOES POSSIBLE IN WW AREA THIS
AFTERNOON...WHERE VERY MOIST LOW LEVEL UPSLOPE FLOW WILL CONVERGE
WITH SWD-MOVING COLD FRONT BENEATH WEAK NW FLOW ALOFT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 35015.


...CORFIDI

320,1044 304,1004 285,1004 301,1044 

WWUS20 KWNS 261833
SEL6  
SPC WW 261835
TXZ000-270000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 596 
NWS STORM PREDICTION CENTER NORMAN OK 
135 PM CDT THU JUN 26 2003

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

       SOUTHWEST TEXAS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 135 PM UNTIL
700 PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 50 MILES SOUTH OF GUADALUPE PASS TEXAS TO 35
MILES NORTH NORTHEAST OF DEL RIO 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 595...


DISCUSSION...A FEW SUPERCELLS WITH VERY LARGE HAIL/LOCALLY DAMAGING
WIND AND A COUPLE TORNADOES POSSIBLE IN WW AREA THIS
AFTERNOON...WHERE VERY MOIST LOW LEVEL UPSLOPE FLOW WILL CONVERGE
WITH SWD-MOVING COLD FRONT BENEATH WEAK NW FLOW ALOFT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 35015.


...CORFIDI

320,1044 304,1004 285,1004 301,1044

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 3:30 AM CDTMesoscale DiscussionSPCBailey, Cochran, Crosby, Dickens, Floyd, Garza and 4 more2 hr
Jun 26, 1:07 PM CDTMesoscale DiscussionSPCCrane, Crockett, Culberson, Loving, Pecos, Reeves and 4 more2 hr
Jun 26, 3:50 PM CDTMesoscale DiscussionSPCBrewster, Crane, Crockett, Culberson, Edwards, Jeff Davis and 9 more55 min

Nearby

Tornado Watches in Texas, 2003Every tornado watch in 2003

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.