Alert archive / Texas / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 710
The Storm Prediction Center issued this severe thunderstorm watch at Jul 9, 2003, 11:10 PM CDT for 5 counties in Oklahoma; 6 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2003, 11:10 PM CDT (04:10 UTC)
- Expired
- Jul 10, 2003, 2:00 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
Counties Beckham County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Roger Mills County, OK, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Foard County, TX, Hardeman County, TX, Wheeler County, TX
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 11:20 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 55 min |
| Jul 9, 11:40 PM CDT | Severe Thunderstorm Warning | AMA | Wheeler | 50 min |
| Jul 9, 11:46 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 29 min |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 4.2 hours before the alert went out and 171 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.
- Mixed-layer CAPE
- 1003 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 2685 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 100409
SEL0
SPC WW 100410
OKZ000-TXZ000-100700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 710
NWS STORM PREDICTION CENTER NORMAN OK
1110 PM CDT WED JUL 9 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
FAR WESTERN OKLAHOMA
THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1110 PM
UNTIL 200 AM CDT.
HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 35 STATUTE MILES
EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF CLINTON
OKLAHOMA TO 45 MILES SOUTH SOUTHEAST OF CHILDRESS TEXAS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 706...WW 707...WW 708...WW
709...
DISCUSSION...STRONG WRN OK SUPERCELL HAS BEEN PRODUCING HIGH
WINDS/HAIL AND...GIVEN AREA WIND PROFILES...MAY CONTINUE TO
MOVE/DEVELOP SSW ALONG INSTABILITY GRADIENT INTO NW TX/THE FAR ERN
PANHANDLE REGION.
AVIATION...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 500. MEAN STORM
MOTION VECTOR 00530.
...CORFIDI
354,0990 334,0992 334,1003 354,1001
WWUS20 KWNS 100409
SEL0
SPC WW 100410
OKZ000-TXZ000-100700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 710
NWS STORM PREDICTION CENTER NORMAN OK
1110 PM CDT WED JUL 9 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
FAR WESTERN OKLAHOMA
THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1110 PM
UNTIL 200 AM CDT.
HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 35 STATUTE MILES
EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF CLINTON
OKLAHOMA TO 45 MILES SOUTH SOUTHEAST OF CHILDRESS TEXAS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 706...WW 707...WW 708...WW
709...
DISCUSSION...STRONG WRN OK SUPERCELL HAS BEEN PRODUCING HIGH
WINDS/HAIL AND...GIVEN AREA WIND PROFILES...MAY CONTINUE TO
MOVE/DEVELOP SSW ALONG INSTABILITY GRADIENT INTO NW TX/THE FAR ERN
PANHANDLE REGION.
AVIATION...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 500. MEAN STORM
MOTION VECTOR 00530.
...CORFIDI
354,0990 334,0992 334,1003 354,1001SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 8:50 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Caddo, Canadian, Cherokee, Cleveland and 38 more | 5 hr |
| Jul 9, 8:56 PM CDT | Mesoscale Discussion | SPC | Ottawa | 94 min |
| Jul 9, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Craig, Kay, Nowata, Osage, Ottawa, Washington | 6 hr |
| Jul 9, 11:22 PM CDT | Mesoscale Discussion | SPC | Adair, Caddo, Canadian, Cherokee, Cleveland, Creek and 26 more | 53 min |
Nearby
Severe Thunderstorm Watches in Texas, 2003Severe Thunderstorm Watches in Oklahoma, 2003Every severe thunderstorm 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.