Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 549, NWS Tulsa, OK

November 22, 1999Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Nov 22, 1999, 11:56 PM CST for Sequoyah County, Oklahoma. It was in force for 49 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: Nov 22, 1999, 11:56 PM CST (05:56 UTC)
Expired: Nov 23, 1999, 12:45 AM CST
In force: 49 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Sequoyah County, OK

What was reported inside it

Time	Report	Where	Remark
Nov 22, 11:56 PM CST	Thunderstorm Wind	Muldrow, OK	Signs and fences were blown down at a truck stop along I-40 south of Muldrow.

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
Nov 22, 9:30 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.9 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: 300 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Nov 22, 10:20 PM CST, 1 hour 36 minutes earlier.

Area forecast discussion, Nov 22, 10:20 PM CST, 1 hour 36 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1020 PM CST MON NOV 22 1999

JUST UPDATED TO ACCOUNT FOR THE NEW SVR TSTM WATCH GOOD TIL 3 AM
CST.  NEW 00Z ETA DOES NOT CHANGE THE THINKING LAID OUT IN THE 830
PM AFD.  DRY MID-LEVEL PUNCH AND VEERING UPPER LEVEL WINDS CONTINUE
TO PROVIDE MORE FAVORABLE CONDITIONS FOR BOW ECHOES...WHILE SLOWLY
ACCELERATING THE LINE OF STORMS TO THE EAST.  THE TORNADO THREAT
APPEARS VERY SMALL AT THIS POINT.  SECONDARY SURFACE LOW OVER NRN TX
WILL MAINTAIN THE SRN EXTENT OF THE TSTMS THROUGH THE NIGHT.  ENTIRE
AREA SHOULD CLEAR THE ERN EDGE OF THE CWA JUST BEFORE SUNRISE.  THE
SEVERE THREAT WILL DIMINISH OVERNIGHT BUT NEVER QUITE GO AWAY.

IN THE SECOND PERIOD...LOWERED POPS A CATEGORY ARND TUL SINCE
ACTIVITY SHOULD BE WELL EAST BY THAT TIME.

WILL BE ISSUING SEVERAL UPDATES DURING THE NEXT FEW HOURS AS WE HACK
AWAY AT THE BACK END OF THE WATCH.

FCSTID = 22

.TUL...
AR...SEVERE THUNDERSTORM WATCH UNTIL 300 AM CST TUESDAY FOR ZONES
ARZ001>002...ARZ010>011...ARZ019>020...ARZ029.

OK...SEVERE THUNDERSTORM WATCH UNTIL 300 AM CST TUESDAY FOR ZONES
OKZ057>058...OKZ061>063...OKZ066>076.

In the hours before

Local storm report, Nov 22, 8:35 PM CST, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
835 PM CST MON NOV 22 1999

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

0620 PM    5 SW OKEMAH               OK    1.75 INCH HAIL
11/22/99   OKFUSKEE                        REPORT RECEIVED FROM
                                           WSFO OUN

0625 PM    COLLINSVILLE              OK    TORNADO
11/22/99   TULSA                           SPOTTERS REPORTED A
                                           TORNADO ON THE GROUND
                                           NEAR 146TH STREET AND
                                           HIGHWAY 75 MOVING
                                           NORTHEAST.

0710 PM    TULSA                     OK    60 MPH TSTM GUST
11/22/99   TULSA                           SPOTTERS REPORTED 60 TO
                                           70 KNOT WINDS ON 71ST
                                           STREET BETWEEN HIGHWAY
                                           169 AND MINGO.

0725 PM    OKMULGEE                  OK    .75 INCH HAIL
11/22/99   OKMULGEE

0730 PM    CATOOSA                   OK    TORNADO
11/22/99   ROGERS                          SPOTTERS REPORTED
                                           POWER LINES SNAPPED
                                           WEST OF CATOOSA.

0734 PM    BALD HILL                 OK    1 INCH HAIL
11/22/99   OKMULGEE

0738 PM    TULSA                     OK    TORNADO
11/22/99   TULSA                           SPOTTERS REPORTED AT
                                           LEAST 8 POWER LINE
                                           POLES DOWN NEAR 11TH
                                           STREET SOUTH AND 193RD
                                           STREET...AND LARGE
                                           TREES DOWN AT 121ST AND
                                           MINGO.

0744 PM    CATOOSA                   OK    TORNADO
11/22/99   ROGERS                          SPOTTERS REPORTED
                                           TRUCKS AND CARS
                                           OVERTURNED IN CENTER OF
                                           MEDIAN.

0803 PM    SAVANNA                   OK    .75 INCH HAIL
11/22/99   PITTSBURG                       SPOTTERS REPORTED DIME
                                           SIZE HAIL.

Special weather statement, Nov 22, 11:27 PM CST, 29 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 22, 6:12 PM CST	Tornado Warning	TSA	Tulsa	33 min
Nov 22, 6:14 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	46 min
Nov 22, 6:22 PM CST	Tornado Warning	TSA	Rogers	38 min
Nov 22, 6:24 PM CST	Severe Thunderstorm Warning	TSA	Pushmataha	51 min
Nov 22, 6:24 PM CST	Tornado Warning	TSA	Washington	36 min
Nov 22, 6:31 PM CST	Tornado Warning	TSA	Nowata	29 min
Nov 22, 6:38 PM CST	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	52 min
Nov 22, 6:38 PM CST	Severe Thunderstorm Warning	TSA	Tulsa	52 min
Nov 22, 6:47 PM CST	Tornado Warning	TSA	Okfuskee, Okmulgee	28 min
Nov 22, 7:02 PM CST	Severe Thunderstorm Warning	TSA	Rogers	43 min
Nov 22, 7:14 PM CST	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Wagoner	46 min
Nov 22, 7:14 PM CST	Severe Thunderstorm Warning	TSA	Pushmataha	31 min
Nov 22, 7:20 PM CST	Tornado Warning	TSA	Okmulgee	25 min
Nov 22, 7:23 PM CST	Tornado Warning	TSA	Pushmataha	37 min
Nov 22, 7:25 PM CST	Tornado Warning	TSA	Rogers, Tulsa, Wagoner	35 min
Nov 22, 7:40 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	35 min
Nov 22, 7:47 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	43 min
Nov 22, 7:49 PM CST	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	41 min
Nov 22, 7:56 PM CST	Severe Thunderstorm Warning	TSA	Craig, Mayes	49 min
Nov 22, 7:58 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Rogers, Tulsa	47 min
Nov 22, 7:58 PM CST	Severe Thunderstorm Warning	TSA	Creek, Osage	47 min
Nov 22, 8:09 PM CST	Severe Thunderstorm Warning	TSA	Craig, Ottawa	51 min
Nov 22, 8:22 PM CST	Severe Thunderstorm Warning	TSA	Rogers	23 min
Nov 22, 8:22 PM CST	Tornado Warning	TSA	Rogers	23 min
Nov 22, 8:32 PM CST	Severe Thunderstorm Warning	TSA	McIntosh, Okfuskee, Okmulgee	43 min
Nov 22, 8:32 PM CST	Severe Thunderstorm Warning	TSA	Mayes, Muskogee, Rogers, Tulsa, Wagoner	43 min
Nov 22, 8:32 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	43 min
Nov 22, 8:36 PM CST	Tornado Warning	TSA	Mayes	24 min
Nov 22, 9:01 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	59 min
Nov 22, 9:04 PM CST	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Wagoner	41 min
Nov 22, 9:04 PM CST	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	41 min
Nov 22, 9:14 PM CST	Severe Thunderstorm Warning	TSA	McIntosh	61 min
Nov 22, 9:44 PM CST	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	46 min
Nov 22, 9:52 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	53 min
Nov 22, 9:57 PM CST	Severe Thunderstorm Warning	TSA	Muskogee	48 min
Nov 22, 10:00 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Wagoner	45 min
Nov 22, 10:24 PM CST	Severe Thunderstorm Warning	TSA	Cherokee	51 min
Nov 22, 10:30 PM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	30 min
Nov 22, 10:43 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Latimer	62 min
Nov 22, 11:11 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Sequoyah	49 min
Nov 22, 11:37 PM CST	Severe Thunderstorm Warning	TSA	Adair	53 min
Nov 23, 12:05 AM CST	Severe Thunderstorm Warning	TSA	Washington	55 min
Nov 23, 12:18 AM CST	Severe Thunderstorm Warning	TSA	Benton	42 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1999 Every severe thunderstorm warning in 1999

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.