Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 102, NWS Tulsa, OK

May 6, 2002Muskogee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 2002, 2:51 AM CDT for Muskogee County, Oklahoma. It was in force for 39 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 6, 2002, 2:51 AM CDT (07:51 UTC)
Expired: May 6, 2002, 3:30 AM CDT
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Muskogee County, OK

The radar

The Tulsa radar (KINX), 51 km from the middle of the area, began a volume at 07:51 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, 1:30 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.9 hours before the alert went out and 182 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: 1804 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 897 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 060751
SVRTUL
OKC101-060830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
251 AM CDT MON MAY 6 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 330 AM CDT

* AT 251 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8
  MILES WEST OF BOYNTON...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MUSKOGEE...
  KEEFETON...BOYNTON...BRAGGS...TAFT...FORT GIBSON AND HASKELL.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 65 MPH CAN BE EXPECTED IN 
THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM 
HAS PASSED.

LAT...LON 3584 9571 3558 9573 3557 9515 3579 9515

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 5, 11:50 PM CDT, 3 hours 1 minute earlier.

Area forecast discussion, May 5, 11:50 PM CDT, 3 hours 1 minute before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1150 PM CDT SUN MAY 5 2002

JUST SENT A QUICK UPDATE TO REMOVE TORNADO WATCH FROM OSAGE AND
PAWNEE COUNTIES.  GIVEN CURRENT PRECIPITATION TRENDS...NO OTHER
CHANGES MADE AT THIS TIME.

HOWIESON
FCSTID = 44

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

In the hours before

Local storm report, May 6, 12:22 AM CDT, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1222 AM CDT MON MAY 6 2002

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

1125 PM    FORAKER                   OK   60 MPH TSTM WIND GUST
05/05/02   OSAGE                          MESONET

Local storm report, May 6, 1:12 AM CDT, 1 hour 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
112 AM CDT MON MAY 6 2002

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

1235 AM    WYNONA                    OK   65 MPH TSTM WIND GUST
05/06/02   OSAGE                          MESONET

Local storm report, May 6, 1:26 AM CDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
126 AM CDT MON MAY 6 2002

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

0110 AM    DEWEY                     OK   WIND DAMAGE
05/06/02   WASHINGTON                     TREES DAMAGED POWER LINES
                                          DOWN REPORTED BY EMERGENCY
                                          MGMT

Local storm report, May 6, 1:57 AM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
157 AM CDT MON MAY 6 2002

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

0125 AM    3 SE DELAWARE             OK   79 MPH TSTM WIND GUST
05/06/02   NOWATA                         MESONET

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 10:33 PM CDT	Severe Thunderstorm Warning	TSA	Osage	42 min
May 5, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Washington	45 min
May 5, 11:08 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	52 min
May 5, 11:11 PM CDT	Severe Thunderstorm Warning	TSA	Osage	49 min
May 5, 11:27 PM CDT	Severe Thunderstorm Warning	TSA	Rogers	48 min
May 6, 12:28 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	47 min
May 6, 1:52 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	53 min
May 6, 2:09 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	51 min
May 6, 2:38 AM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	52 min
May 6, 2:39 AM CDT	Severe Thunderstorm Warning	TSA	Delaware	36 min
May 6, 2:47 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee	43 min
May 6, 3:01 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	44 min
May 6, 3:20 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee	55 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2002 Every severe thunderstorm warning in 2002

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.