Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 120, NWS Tulsa, OK

April 23, 2000McIntosh County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 23, 2000, 6:02 PM CDT for McIntosh County, Oklahoma. It was in force for 58 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 23, 2000, 6:02 PM CDT (23:02 UTC)
Expired: Apr 23, 2000, 7:00 PM CDT
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 23:06 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.

What was reported inside it

Time	Report	Where	Remark
Apr 23, 6:11 PM CDT	Hail 1	Salem, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 23, 1:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.0 hours before the alert went out and 158 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: 76 J/kg
Mixed-layer CIN: -265 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 340 m²/s²
0-3 km storm-relative helicity: 352 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

304 
WUUS54 KTSA 232304
SVRTUL
OKC091-240000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
602 PM CDT SUN APR 23 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 700 PM CDT

* AT 602 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR HENRYETTA...MOVING SOUTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...STIDHAM...
VIVIAN AND RAIFORD.

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

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.

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

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 Apr 23, 3:45 PM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Apr 23, 3:45 PM CDT, 2 hours 17 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
345 PM CDT SUN APR 23 2000

VERY IMPRESSIVE STORMS ON RADAR THIS AFTERNOON WITH TORNADO THREAT
CONTINUING IN THE SOUTHEAST PART OF THE AREA.  THREAT WILL BE
SHIFTING OFF TO THE EAST AND SOUTHEAST OF THE AREA THRU THE EARLY
EVENING HOURS AS UPPER SYSTEM MOVING ACROSS THE AREA TRANSLATES ON
EASTWARD.  MEANWHILE...OVER NORTHEAST OK SEVERE WEATHER ALSO ONGOING
LATE THIS AFTERNOON ASSOCIATED WITH COLD POOL ALOFT AND THREAT OF
HAIL.  ALSO HEAVY RAIN THREAT WITH STORMS UNDER THE UPPER LOW IN
NORTHEAST OK.  LOSS OF DAYTIME HEATING IN A FEW HOURS SHOULD WEAKEN
STORMS IN THIS AREA...SO THREAT OF SEVERE WX SHOULD DIMINISH OR SHIFT
OUT OF THE AREA DURING THE EARLY EVENING HOURS.

ONCE THIS SYSTEM MOVES OFF TO THE EAST THIS EVENING SHOULD SEE
GENERAL NORTHWEST FLOW ALOFT FOR A FEW DAYS AND QUIET WEATHER.  WEAK
IMPULSE WILL BRUSH BY TO THE NORTH LATE MONDAY OR EARLY TUESDAY..BUT
EXPECT ANY ASSOCIATED PRECIP TO ALSO STAY TO THE NORTH.  TEMPS OVER
THE NEXT SEVERAL DAYS LOOK RATHER SEASONAL WITH NEXT MAJOR SYSTEM TO
AFFECT THE AREA STILL JUST BEYOND THIS FORECAST.

FCSTID = 4
TUL   52  72  48  73 /  30   0   0  10
FSM   54  72  46  74 /  30   0   0  10
MLC   53  72  48  75 /  30   0   0  10
BVO   50  70  43  71 /  30   0   0  10
FYV   50  68  42  70 /  30   0   0  10
BYV   50  68  42  70 /  30   0   0  10
MIO   50  69  43  71 /  30   0   0  10
MKO   53  72  48  73 /  30   0   0  10
F10   53  72  48  73 /  30   0   0  10
HHW   55  74  52  78 /  30   0   0  10

.TUL...
AR...NONE.
OK...NONE.

In the hours before

Local storm report, Apr 23, 2:20 PM CDT, 3 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
220 PM CDT SUN APR 23 2000

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

0154 PM    MC ALESTER                OK    .88 INCH HAIL
04/23/00   PITTSBURG                       OHP REPORT

0200 PM    TULSA                     OK    .75 INCH HAIL
04/23/00   TULSA                           PUBLIC REPORT.  HAIL AT
                                           15TH AND LEWIS IN TULSA.

0200 PM    MC ALESTER                OK    TORNADO
04/23/00   PITTSBURG                       LAW ENFORCEMENT
                                           REPORTED TORNADO ON
                                           GROUND JUST EAST OF
                                           MCALESTER.

Local storm report, Apr 23, 3:54 PM CDT, 2 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
354 PM CDT SUN APR 23 2000

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

0225 PM    HARTSHORNE                OK    WIND DAMAGE
04/23/00   PITTSBURG                       *** 1 INJ ***
                                           MOBILE HOME OVERTURNED.
                                           ROOFS DAMAGED.  1 MINOR
                                           INJURY OF PERSON IN
                                           CAR.  REPORT FROM
                                           EMERGENCY MANAGEMENT.

0241 PM    TUSKAHOMA                 OK    .88 INCH HAIL
04/23/00   PUSHMATAHA                      COOP OBSERVER REPORT.

0245 PM    2 S WILBURTON             OK    WIND DAMAGE
04/23/00   LATIMER                         TREES DOWN.  SPOTTER
                                           REPORT.

0255 PM    FROGVILLE                 OK    1 INCH HAIL
04/23/00   CHOCTAW                         EMERGENCY MANAGEMENT
                                           REPORT.

DRM

Local storm report, Apr 23, 4:25 PM CDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
425 PM CDT SUN APR 23 2000

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

0405 PM    1 E DEWEY                 OK    .75 INCH HAIL
04/23/00   WASHINGTON                      SPOTTER REPORT.

0405 PM    BUNCH                     OK    1 INCH HAIL
04/23/00   ADAIR                           LAW ENFORCEMENT REPORT.

X0415 PM    KEEFETON                  OK    .75 INCH HAIL
04/23/00   MUSKOGEE                        EMERGENCY MANAGEMENT
                                           REPORT.

DRM

Local storm report, Apr 23, 5:05 PM CDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
505 PM CDT SUN APR 23 2000

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

0455 PM    6 E CHECOTAH              OK    1 INCH HAIL
04/23/00   MCINTOSH                        EMERGENCY MANAGEMENT
                                           REPORT.

0457 PM    4 E CHECOTAH              OK    1.75 INCH HAIL
04/23/00   MCINTOSH                        EMERGENCY MANAGEMENT
                                           REPORT.

Local storm report, Apr 23, 5:42 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
542 PM CDT SUN APR 23 2000

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

0450 PM    WELTY                     OK    .75 INCH HAIL
04/23/00   OKFUSKEE                        EMERGENCY MANAGEMENT
                                           REPORT.

0515 PM    1 E CENTRALIA             OK    .75 INCH HAIL
04/23/00   CRAIG                           EMERGENCY MANAGEMENT
                                           REPORT.

0515 PM    OKFUSKEE                  OK    .75 INCH HAIL
04/23/00   OKFUSKEE                        EMERGENCY MANAGEMENT
                                           REPORT.

0527 PM    TULSA                     OK    .75 INCH HAIL
04/23/00   TULSA                           61ST AND LEWIS IN
                                           TULSA.  PUBLIC REPORT.

Local storm report, Apr 23, 5:49 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
549 PM CDT SUN APR 23 2000

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

0545 PM    OKMULGEE                  OK    1 INCH HAIL
04/23/00   OKMULGEE                        SPOTTER REPORT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 1:13 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	47 min
Apr 23, 1:32 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	43 min
Apr 23, 1:56 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	49 min
Apr 23, 2:00 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	45 min
Apr 23, 2:10 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg	35 min
Apr 23, 2:13 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	47 min
Apr 23, 2:15 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	45 min
Apr 23, 2:22 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	38 min
Apr 23, 2:23 PM CDT	Tornado Warning	TSA	Pushmataha	37 min
Apr 23, 2:38 PM CDT	Tornado Warning	TSA	Latimer	52 min
Apr 23, 2:40 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	50 min
Apr 23, 2:44 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	61 min
Apr 23, 2:57 PM CDT	Tornado Warning	TSA	Pushmataha	48 min
Apr 23, 3:04 PM CDT	Tornado Warning	TSA	LeFlore	56 min
Apr 23, 3:28 PM CDT	Tornado Warning	TSA	Latimer	32 min
Apr 23, 3:29 PM CDT	Severe Thunderstorm Warning	TSA	Osage	61 min
Apr 23, 3:42 PM CDT	Tornado Warning	TSA	Pushmataha	48 min
Apr 23, 3:55 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	50 min
Apr 23, 4:02 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	58 min
Apr 23, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	42 min
Apr 23, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	57 min
Apr 23, 4:26 PM CDT	Severe Thunderstorm Warning	TSA	Osage	64 min
Apr 23, 4:40 PM CDT	Severe Thunderstorm Warning	TSA	Craig	50 min
Apr 23, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee	48 min
Apr 23, 4:45 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	45 min
Apr 23, 4:50 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers, Tulsa, Washington	40 min
Apr 23, 4:57 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	63 min
Apr 23, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	50 min
Apr 23, 5:26 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	49 min
Apr 23, 5:33 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	57 min
Apr 23, 5:36 PM CDT	Severe Thunderstorm Warning	TSA	Creek	39 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.