Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 134, NWS Tulsa, OK

May 7, 2003LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 7, 2003, 12:01 AM CDT for LeFlore County, Oklahoma. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 7, 2003, 12:01 AM CDT (05:01 UTC)
Expired: May 7, 2003, 12:45 AM CDT
In force: 44 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 47 km from the middle of the area, began a volume at 05:01 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 6, 11:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.0 hours before the alert went out and 222 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2206 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1529 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 14.3

Open this sounding in Storm Lab

The text

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

423 
WUUS54 KTSA 070501
SVRTUL
OKC079-070545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1159 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1245 AM CDT

* AT 1158 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6
  MILES WEST OF FANSHAWE...MOVING NORTHEAST AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...POTEAU...
  FANSHAWE...CAMERON...PANAMA AND POCOLA.

HAIL TO THE SIZE OF NICKELS CAN BE EXPECTED IN THE WARNED AREA. STAY 
INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3504 9506 3488 9497 3509 9445 3530 9445

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 10:55 PM CDT, 1 hour 6 minutes earlier.

Area forecast discussion, May 6, 10:55 PM CDT, 1 hour 6 minutes before

MESOSCALE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
1055 PM CDT TUE MAY 6 2003

WATOR VAPOR IMAGES SHOW A STRONG JET SEGMENT PUNCHING INTO THE
SOUTHERN PLAINS...SO DEEP LAYER SHEAR WILL GRADUALLY INCREASE DURING
THE NIGHT ACROSS THE AREA.  SCATTERED THUNDERSTORMS WILL REMAIN
LIKELY AHEAD OF THE COLD FRONT FROM SOUTHEAST OKLAHOMA INTO WESTERN
ARKANSAS AS THE JET STREAK APPROACHES.

INCREASING SHEAR SUGGESTS THAT A FEW CELLS WILL HAVE SOME SUPERCELL
CHARACTERISTICS...WITH A CONTINUED WIND AND HAIL THREAT.

FORECAST ID= 08

.TSA...
AR...NONE.
OK...NONE.

Hazardous weather outlook, May 6, 9:11 PM CDT, 2 hours 50 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-071100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
911 PM CDT TUE MAY 6 2003

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TONIGHT

SEVERE WEATHER OUTLOOK

THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL CONTINUE THROUGH
MIDNIGHT IN FAR SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.

CURRENT THUNDERSTORM ACTIVITY WILL CONTINUE TO HAVE A WIND AND HAIL
THREAT FOR THE NEXT FEW HOURS.  THIS ACTIVITY WILL SHIFT OUT OF THE
AREA BY MIDNIGHT AND THE THREAT FOR SEVERE WEATHER SHOULD END AT
THAT TIME.

WARNING PROBABILITIES FOR SEVERE THUNDERSTORMS AND TORNADOES CAN BE
FOUND IN THE OUTLOOK SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN
PROBABILITIES REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT
YOUR LOCATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
AN ACTIVE SPRING WEATHER PATTERN WILL CONTINUE INTO THE WEEKEND AS A
SERIES OF DISTURBANCES MOVES ACROSS THE SOUTHERN PLAINS AND A
SURFACE BOUNDARY REMAINS OVER THE AREA. IT APPEARS THE BEST CHANCES
OF SEVERE WEATHER WILL OCCUR WEDNESDAY NIGHT AND THURSDAY...AND
AGAIN ON SATURDAY. A MORE STABLE PATTERN MAY FINALLY TAKE OVER BY
EARLY NEXT WEEK.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON.   A TORNADO
WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS UNTIL 700 PM.  EMERGENCY MANAGEMENT PERSONNEL SHOULD
CONTINUE TO CLOSELY MONITOR THE LATEST WEATHER CONDITIONS...AS
WARNINGS WILL LIKELY BE ISSUED LATER THIS AFTERNOON.

ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA

In the hours before

Local storm report, May 6, 9:12 PM CDT, 2 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0912 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0820 PM    TALIHINA                  OK   1.00 IN HAIL
05/06/03   LE FLORE

0817 PM    CLAYTON                   OK   1.00 IN HAIL
05/06/03   PUSHMATAHA

0810 PM    YANUSH                    OK   0.75 IN HAIL
05/06/03   LATIMER

0805 PM    STANLEY                   OK   0.75 IN HAIL
05/06/03   PUSHMATAHA

0717 PM    PANAMA                    OK   70 MPH TSTORM WIND
05/06/03   LE FLORE                       ESTIMATED WIND BY SPOTTER

0455 PM    OKTAHA                    OK   1.00 IN HAIL
05/06/03   MUSKOGEE

GM

Local storm report, May 6, 10:27 PM CDT, 1 hour 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1027 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0511 PM    3 SE KEEFETON             OK   F0 TORNADO
05/06/03   MUSKOGEE                       BRIEF TOUCHDOWN REPORTED
                                          BY CHASER IN OPEN COUNTRY.

SP

Local storm report, May 6, 10:30 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1030 PM CDT TUE MAY 06 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0725 PM    6 N OZARK                 AR   1.75 IN HAIL
05/06/03   FRANKLIN

SP

Special weather statement, May 6, 10:36 PM CDT, 1 hour 25 minutes before

OKZ075-070415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1036 PM CDT TUE MAY 6 2003

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR LATIMER COUNTY UNTIL 1115
   PM CDT...

AT 1036 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 2 MILES SOUTHEAST OF PANOLA TO 4 MILES SOUTH OF
HIGGINS...MOVING EAST AT 30 MPH.

THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS
TO 40 MPH. THE COMMUNITIES OF WILBURTON...HIGGINS...BENGAL...DAMON
...PANOLA AND RED OAK WILL BE AFFECTED BY THESE STORMS THROUGH 1115
PM CDT.

Special weather statement, May 6, 10:57 PM CDT, 1 hour 4 minutes before

ARZ002-011-070500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1057 PM CDT TUE MAY 6 2003

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR CARROLL AND MADISON
   COUNTIES UNTIL MIDNIGHT CDT...

AT 1057 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 6 MILES EAST OF CONNOR TO 5 MILES SOUTHWEST OF
HINDSVILLE...MOVING EAST AT 25 MPH. THESE STORMS WILL BE CAPABLE OF
PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH.

THE COMMUNITIES OF HARMONY...OSAGE...DRYFORK...METALTON...
RUDD...CONNOR...CABANAL...RULE...HUNTSVILLE...KINGSTON...HINDSVILLE
...FORUM...GEORGETOWN...MARBLE...ALABAM...CLIFTY AND ROCKHOUSE WILL
BE AFFECTED BY THESE STORMS THROUGH MIDNIGHT CDT.

RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE
ISSUED.

Special weather statement, May 6, 11:27 PM CDT, 34 minutes before

ARZ002-010>011-019>020-029-OKZ049-053-072-074>076-071000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1127 PM CDT TUE MAY 6 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH
#279 UNTIL 500 AM CDT WEDNESDAY MORNING FOR THE FOLLOWING AREAS:

IN ARKANSAS THIS WATCH INCLUDES 6 COUNTIES...
IN NORTHWEST ARKANSAS:

CARROLL               CRAWFORD              MADISON
WASHINGTON

IN WEST CENTRAL ARKANSAS:

FRANKLIN              SEBASTIAN

IN OKLAHOMA THIS WATCH INCLUDES 6 COUNTIES...
IN EAST CENTRAL OKLAHOMA:

SEQUOYAH

IN SOUTHEAST OKLAHOMA:

CHOCTAW               HASKELL               LATIMER
LE FLORE              PUSHMATAHA

THIS INCLUDES THE CITIES OF ANTLERS...BERRYVILLE...CEDARVILLE...
CLAYTON...EUREKA SPRINGS...FAYETTEVILLE...FORT SMITH...HUGO...
HUNTSVILLE...MOUNTAINBURG...NATURAL DAM...OZARK...POTEAU...
SALLISAW...SPRINGDALE...STIGLER...VAN BUREN AND WILBURTON.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 7:18 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	57 min
May 6, 7:28 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	77 min
May 6, 8:00 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	75 min
May 6, 8:45 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	45 min
May 6, 9:10 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	80 min
May 6, 10:40 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	65 min
May 6, 11:03 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	57 min
May 6, 11:44 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	61 min
May 7, 12:28 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	62 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2003 Every severe thunderstorm warning 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.