Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 172, NWS Tulsa, OK

May 9, 2000Delaware County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 2000, 3:02 AM CDT for Delaware County, Oklahoma. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 9, 2000, 3:02 AM CDT (08:02 UTC)
Expired: May 9, 2000, 3:45 AM CDT
In force: 43 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Delaware County, OK

The radar

The Tulsa radar (KINX), 75 km from the middle of the area, began a volume at 08:02 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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.0 hours before the alert went out and 102 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: 1344 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1790 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 090803
SVRTUL
OKC041-090845-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
302 AM CDT TUE MAY 9 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DELAWARE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 345 AM CDT

* AT 302 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTHWEST OF JAY...MOVING SOUTHEAST AT
  25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CHLOETA 
...COLCORD AND JAY

STORM SPOTTERS REPORTED DIME-SIZED HAIL NEAR KETCHUM WITH THIS STORM.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.

CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 3661 9495 3644 9504 3615 9454 3661 9462

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 9, 12:12 AM CDT, 2 hours 50 minutes earlier.

Area forecast discussion, May 9, 12:12 AM CDT, 2 hours 50 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1210 PM CDT MON MAY 8 2000

UPDATED ZONES AGAIN TO UPDATE HEADLINES AND LOWER POPS SOUTH OF FFA
AREA.  MOST OF RAINFALL WILL BE CONFINED TO THE NORTHERN HALF OF THE
FFA...BUT AM NOT CONFIDENT ENOUGH TO CANCEL THE SOUTHERN HALF OF THE
WATCH AREA AT THIS TIME GIVEN THE CURRENT STATE OF FLOODING IN THOSE
AREAS.

FCSTID = 19

.TUL...
AR...NONE.
OK...FLASH FLOOD WATCH FOR MONDAY NIGHT FOR ZONES OKZ054>064...
OKZ067.

In the hours before

Local storm report, May 8, 11:39 PM CDT, 3 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
831 PM CDT MON MAY 08 2000

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

0820 PM    FORAKER                   OK    .88 INCH HAIL
05/08/00   OSAGE

0825 PM    PEARSONIA                 OK    .88 INCH HAIL
05/08/00   OSAGE

Local storm report, May 8, 11:40 PM CDT, 3 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
905 PM CDT MON MAY 08 2000

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

0858 PM    BARTLESVILLE              OK    .88 INCH HAIL
05/08/00   WASHINGTON

0859 PM    COPAN                     OK    .75 INCH HAIL
05/08/00   WASHINGTON

0903 PM    COPAN                     OK    1 INCH HAIL
05/08/00   WASHINGTON

Local storm report, May 8, 11:44 PM CDT, 3 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1144 PM CDT MON MAY 08 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....
t
1111 PM    PAWHUSKA                  OK    1.25 INCH HAIL
05/08/00   OSAGE

Local storm report, May 8, 11:52 PM CDT, 3 hours 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1152 PM CDT MON MAY 8 2000

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

1128 PM    BARTLESVILLE              OK    4.5 INCH HAIL
05/08/00   WASHINGTON                      NUMEROUS REPORTS HAIL
                                           UP TO SOFTBALL SIZE
                                           1128 TO 1133 PM
(

Special weather statement, May 9, 12:00 AM CDT, 3 hours 2 minutes before

OKZ054>062-064>067-090600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1200 AM CDT TUE MAY 9 2000

...TORNADO WATCH NUMBER 246 EXPIRED...

TORNADO WATCH NUMBER 246 FOR PARTS OF EASTERN OKLAHOMA HAS
EXPIRED.

SEVERE THUNDERSTORMS WILL CONTINUE IN FAR NORTHEAST OKLAHOMA IN THE
COUNTIES THAT BORDER KANSAS AND A SEVERE THUNDERSTORM WATCH HAS
BEEN ISSUED FOR THESE AREAS UNTIL 6AM.

SEE SHORT TERM FORECASTS FROM THIS OFFICE FOR DETAILS CONCERNING THE
THUNDERSTORMS.

STAY TUNED TO THIS STATION FOR FURTHER INFORMATION FROM THE
NATIONAL WEATHER SERVICE.

Local storm report, May 9, 12:16 AM CDT, 2 hours 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1216 AM CDT TUE MAY 09 2000

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

1154 PM    NOWATA                    OK    .75 INCH HAIL
05/08/00   NOWATA

1155 PM    LENAPAH                   OK    FLOOD
05/08/00   NOWATA                          WATER COVERING NUMEROUS
                                           ROADS IN AND AROUND
                                           LENEPAH

1158 PM    DEWEY                     OK    FLOOD
05/08/00   WASHINGTON                      WATER 2-3 INCHES DEEP
                                           IN BULLDOGGER APTS IN.
                                           DEWEY AND WATER OVER
                                           NUMEROUS STREETS IN
                                           DEWEY AND BARTLESVILLE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:31 PM CDT	Severe Thunderstorm Warning	TSA	Osage	59 min
May 8, 8:25 PM CDT	Severe Thunderstorm Warning	TSA	Osage	65 min
May 8, 8:40 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Washington	65 min
May 8, 8:42 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	48 min
May 8, 8:50 PM CDT	Tornado Warning	TSA	Nowata, Washington	25 min
May 8, 8:50 PM CDT	Tornado Warning	TSA	Osage	25 min
May 8, 9:29 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	61 min
May 8, 9:34 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	56 min
May 8, 9:51 PM CDT	Severe Thunderstorm Warning	TSA	Osage	54 min
May 8, 10:46 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	59 min
May 8, 11:13 PM CDT	Severe Thunderstorm Warning	TSA	Washington	47 min
May 8, 11:29 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	61 min
May 8, 11:45 PM CDT	Severe Thunderstorm Warning	TSA	Osage	60 min
May 8, 11:56 PM CDT	Severe Thunderstorm Warning	TSA	Washington	49 min
May 8, 11:58 PM CDT	Severe Thunderstorm Warning	TSA	Craig	62 min
May 9, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	45 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000 Every severe thunderstorm warning in 2000

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.