Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 155, NWS Tulsa, OK

April 26, 1999Pittsburg County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 26, 1999, 6:34 PM CDT for Pittsburg County, Oklahoma. It was in force for 41 min. 3 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: Apr 26, 1999, 6:34 PM CDT (23:34 UTC)
Expired: Apr 26, 1999, 7:15 PM CDT
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Pittsburg County, OK

What was reported inside it

Time	Report	Where
Apr 26, 7:00 PM CDT	Hail 0.75	Ashland, OK
Apr 26, 7:13 PM CDT	Hail 0.88	Kiowa, OK
Apr 26, 7:25 PM CDT	Hail 0.88	Mc Alester, 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 26, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.6 hours before the alert went out and 154 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: 518 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Apr 26, 3:24 PM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Apr 26, 3:24 PM CDT, 3 hours 10 minutes before

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In the hours before

Local storm report, Apr 26, 4:21 PM CDT, 2 hours 13 minutes before

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Local storm report, Apr 26, 4:21 PM CDT, 2 hours 13 minutes before

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Local storm report, Apr 26, 4:48 PM CDT, 1 hour 46 minutes before

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Local storm report, Apr 26, 4:48 PM CDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
448 PM CDT MON APR 26 1999

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

1255 PM    VINITA                    OK    FLOOD
04/26/99   CRAIG                           SEVERAL RURAL ROADS
                                           SOUTH OF VINITA CLOSED
                                           DUE TO HIGH WATER

Local storm report, Apr 26, 5:35 PM CDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
535 PM CDT MON APR 26 1999

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

0200 PM    COUNTY WIDE               OK    FLOOD
04/26/99   CRAIG                           COUNTY ROADS THROUGHOUT
                                           CRAIG COUNTY CLOSED DUE
                                           TOP HIGH WATER.

0200 PM    BIG CABIN                 OK    FLOOD
04/26/99   CRAIG                           HIGHWAY 69 NORTH OF BIG
                                           CABIN HAD WATER
                                           COVERING ROAD.

0200 PM    MIAMI                     OK    FLOOD
04/26/99   OTTAWA                          NUMEROUS ROADS IN THE
                                           CITY OF MIAMI CLOSED
                                           DUE TO HIGH WATER.

Local storm report, Apr 26, 5:35 PM CDT, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
535 PM CDT MON APR 26 1999

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

0200 PM    COUNTY WIDE               OK    FLOOD
04/26/99   CRAIG                           COUNTY ROADS THROUGHOUT
                                           CRAIG COUNTY CLOSED DUE
                                           TOP HIGH WATER.

0200 PM    BIG CABIN                 OK    FLOOD
04/26/99   CRAIG                           HIGHWAY 69 NORTH OF BIG
                                           CABIN HAD WATER
                                           COVERING ROAD.

0200 PM    MIAMI                     OK    FLOOD
04/26/99   OTTAWA                          NUMEROUS ROADS IN THE
                                           CITY OF MIAMI CLOSED
                                           DUE TO HIGH WATER.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:21 AM CDT	Severe Thunderstorm Warning	TSA	Creek	24 min
Apr 26, 9:45 AM CDT	Flash Flood Warning	TSA	Creek, McIntosh, Okfuskee, Okmulgee, Tulsa	4 hr
Apr 26, 9:45 AM CDT	Flash Flood Warning	TSA	Pittsburg	4 hr
Apr 26, 11:27 AM CDT	Flash Flood Warning	TSA	Craig, Mayes, Nowata, Rogers, Wagoner, Washington	3 hr
Apr 26, 11:27 AM CDT	Flash Flood Warning	TSA	Osage	3 hr
Apr 26, 11:27 AM CDT	Flash Flood Warning	TSA	Muskogee	3 hr
Apr 26, 11:57 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	48 min
Apr 26, 12:33 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	42 min
Apr 26, 1:49 PM CDT	Flash Flood Warning	TSA	Craig, Ottawa	116 min
Apr 26, 1:05 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	40 min
Apr 26, 1:15 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	30 min
Apr 26, 1:44 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Madison	31 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.