Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 104, NWS Tulsa, OK

May 6, 2002Cherokee County, Muskogee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 2002, 3:20 AM CDT for Cherokee County, Muskogee County, Oklahoma. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 6, 2002, 3:20 AM CDT (08:20 UTC)
Expired: May 6, 2002, 4:15 AM CDT
In force: 55 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Cherokee County, OK, Muskogee County, OK

The radar

The Tulsa radar (KINX), 57 km from the middle of the area, began a volume at 08:22 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.

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

Springfield, MO (KSGF), launched 00:00Z, 8.3 hours before the alert went out and 178 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: 303 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1379 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 060820
SVRTUL
OKC021-101-060915-

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA
  EASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 415 AM CDT

* AT 320 AM CDT...SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WINDS UP
  TO 65 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES            
  NORTHWEST OF HULBERT TO FORT GIBSON TO 2 MILES WEST OF OKTAHA...   
  MOVING NORTHEAST AT 50 MPH.

* SOME LOCATIONS AFFECTED INCLUDE... OAKS...TAHLEQUAH...COOKSON...
  HULBERT...ELDON...PEGGS...SCRAPER...MUSKOGEE...OKTAHA...KEEFETON...
  BRAGGS...FORT GIBSON AND WEBBERS FALLS.

DAMAGING WINDS ARE LIKELY WITH THESE STORMS...MOVE TO A SAFE PLACE
NOW. MOBILE HOMES AND VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO HIGH
WINDS AND MAY BE OVERTURNED.

$$

LAT...LON 3618 9511 3607 9519 3558 9550 3547 9513
          3564 9511 3566 9480 3618 9482

MANNING

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, 3:05 AM CDT, 15 minutes earlier.

Area forecast discussion, May 6, 3:05 AM CDT, 15 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
305 AM CDT MON MAY 6 2002

STRONG TO SEVERE THUNDERSTORMS MOVING ACROSS THE NORTHEAST OKLAHOMA
AND EXTREME NORTHWEST ARKANSAS THIS MORNING...PRETTY MUCH AS THE
5/5/00Z AVN HAD ADVERTISED. THIS CONVECTION SHOULD CLEAR THE
FORECAST AREA BY MID-MORNING. THE REMAINDER OF THE DAY WILL BE
WARM...HUMID AND WINDY...ESPECIALLY ACROSS THE NORTHERN PART OF THE
FORECAST AREA. THE AREA WILL BE TOO CAPPED WITH NO SIG FOCUSING
MECHANISM FOR THUNDERSTORMS TO DEVELOP ACRS THE FA. THUNDERSTORMS
WILL TRY TO DEVELOP AGAIN THIS AFTERNOON ALONG THE DRY LINE ACROSS
WESTERN OKLAHOMA. I DO NOT EXPECT THIS ACTIVITY TO MAKE IT THIS FAR
EAST TONIGHT. HOWEVER...AN MCS WILL MOST LIKELY DEVELOP ACRS CENTRAL
KS AND MO AND MAY SLIDE ACROSS EXTREME NORTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS TUESDAY MORNING AS IT DECAYS.

MADE NO CHANGES TO THE CURRENT EXTENDED FCST.

FCSTID = 10
TUL   85  70  85  71 /  20  10  10  10
FSM   85  70  86  68 /  20  10  10  10
MLC   87  69  86  70 /  20  10  10  10
BVO   85  70  84  72 /  20  10  10  10
FYV   82  66  79  66 /  20  20  10  10
BYV   80  68  81  68 /  20  30  10  10
MIO   83  68  85  70 /  20  20  10  10
MKO   85  70  86  70 /  20  10  10  10
F10   86  69  86  70 /  20  10  10  10
HHW   88  68  87  69 /  20   0  10  10

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

In the hours before

Local storm report, May 6, 12:22 AM CDT, 2 hours 58 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, 2 hours 8 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 54 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, 1 hour 23 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

Special weather statement, May 6, 3:20 AM CDT, 0 minutes before

OKZ057-058-060>071-061200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
320 AM CDT MON MAY 6 2002

...SEVERE THUNDERSTORM WATCH #236 HAS BEEN CANCELLED FROM THE
FOLLOWING COUNTIES...

IN EASTERN OKLAHOMA:
  OTTAWA          CRAIG           ROGERS          TULSA
  CREEK           OKMULGEE        OKFUSKEE

...SEVERE THUNDERSTORM WATCH #236 REMAINS IN EFFECT UNTIL 700 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA THIS WATCH INCLUDES:
  DELAWARE        MAYES           ADAIR           WAGONER

IN EAST CENTRAL OKLAHOMA THIS WATCH INCLUDES:
  CHEROKEE        MUSKOGEE

IN SOUTHEAST OKLAHOMA THIS WATCH INCLUDES:
  MCINTOSH

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, 2:51 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee	39 min
May 6, 3:01 AM CDT	Severe Thunderstorm Warning	TSA	Wagoner	44 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.