Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 458, NWS Tulsa, OK

August 26, 1999Creek County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 26, 1999, 8:47 PM CDT for Creek County, Oklahoma. It was in force for 43 min. 2 reports 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: Aug 26, 1999, 8:47 PM CDT (01:47 UTC)
Expired: Aug 26, 1999, 9:30 PM CDT
In force: 43 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Creek County, OK

The radar

The Tulsa radar (KINX), 79 km from the middle of the area, began a volume at 01:50 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
Aug 26, 8:55 PM CDT	Hail 0.88	Bristow, OK
Aug 26, 9:05 PM CDT	Thunderstorm Wind	Bristow, OK	One large tree and several large tree limbs were blown down.

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
Aug 26, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 1.8 hours before the alert went out and 127 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: 1045 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 3330 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 26, 2:45 PM CDT, 6 hours 2 minutes earlier.

Area forecast discussion, Aug 26, 2:45 PM CDT, 6 hours 2 minutes before

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In the hours before

Local storm report, Aug 26, 7:56 PM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
756 PM CDT THU AUG 26 1999

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

0430 PM    8 W CLAREMORE             OK    WIND DAMAGE
08/26/99   ROGERS                          POSSIBLE TORNADO MOBILE
                                           HOME DAMAGED AND WIND
                                           DAMAGE TO ROOF OF BARN

0538 PM    LOCUST GROVE              OK    1 INCH HAIL
08/26/99   MAYES

0603 PM    LEACH                     OK    65 MPH TSTM GUST
08/26/99   DELAWARE

0644 PM    ZENA                      OK    .75 INCH HAIL
08/26/99   DELAWARE

0703 PM    FAIRFAX                   OK    .75 INCH HAIL
08/26/99   OSAGE

0703 PM    FAIRFAX                   OK    WIND DAMAGE
08/26/99   OSAGE                           TREE BLOWN DOWN

Local storm report, Aug 26, 7:56 PM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
756 PM CDT THU AUG 26 1999

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

0430 PM    8 W CLAREMORE             OK    WIND DAMAGE
08/26/99   ROGERS                          POSSIBLE TORNADO MOBILE
                                           HOME DAMAGED AND WIND
                                           DAMAGE TO ROOF OF BARN

0538 PM    LOCUST GROVE              OK    1 INCH HAIL
08/26/99   MAYES

0603 PM    LEACH                     OK    65 MPH TSTM GUST
08/26/99   DELAWARE

0644 PM    ZENA                      OK    .75 INCH HAIL
08/26/99   DELAWARE

0703 PM    FAIRFAX                   OK    .75 INCH HAIL
08/26/99   OSAGE

0703 PM    FAIRFAX                   OK    WIND DAMAGE
08/26/99   OSAGE                           TREE BLOWN DOWN

Local storm report, Aug 26, 8:11 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
811 PM CDT THU AUG 26 1999

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

0740 PM    CHARLESTON                AR    WIND DAMAGE
08/26/99   FRANKLIN                        TREES REPORTED DOWN

Local storm report, Aug 26, 8:11 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
811 PM CDT THU AUG 26 1999

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

0740 PM    CHARLESTON                AR    WIND DAMAGE
08/26/99   FRANKLIN                        TREES REPORTED DOWN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 7:17 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	43 min
Aug 26, 8:00 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	45 min
Aug 26, 9:14 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	46 min
Aug 26, 10:00 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	45 min
Aug 26, 10:38 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	52 min
Aug 26, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	37 min
Aug 26, 11:55 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	50 min
Aug 27, 12:42 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	48 min
Aug 26, 7:32 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	43 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; radar from the NEXRAD Level II archive.