Alert archive / Oklahoma / Tornado Warnings in 1996

Tornado Warning 32, NWS Tulsa, OK

April 28, 1996Osage County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 28, 1996, 1:27 AM CDT for Osage County, Oklahoma. It was in force for 33 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 28, 1996, 1:27 AM CDT (06:27 UTC)
Expired
Apr 28, 1996, 2:00 AM CDT
In force
33 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 06:28 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

TimeReportWhereRemark
Apr 28, 1:45 AM CDTHail 1.25Pawhuska, 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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.5 hours before the alert went out and 181 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 1996-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1118 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1996-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1118 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1297 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
405 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 280629
TORTUL
OKC113-280700-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
127 AM CDT SUN APR 28 1996
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST OKLAHOMA
 
   ...NORTHERN OSAGE COUNTY
 
AT 126 AM WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM WITH A
HISTORY OF PRODUCING TORNADOES AND VERY LARGE HAIL CENTERED 5 MILES
EAST OF SHIDLER...MOVING EAST AT 30 MPH.  RADAR INDICATES THIS STORM
MAY STILL BE PRODUCING A TORNADO.  PERSONIA IS NEAR THE PATH OF THIS
STORM.
 
THIS STORM IS CAPABLE OF PRODUCING HAIL UP TO GOLF BALL SIZE AND
WINDS UP TO 75 MPH.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE IN THE
PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE.
OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE.
STAY AWAY FROM OUTSIDE WALLS AND AVOID WINDOWS.  ABANDON CARS AND
MOBILE HOMES FOR A REINFORCED BUILDING OR GET IN A GROUND DEPRESSION.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 12:25 AM CDTSevere Thunderstorm WarningTSAOsage65 min
Apr 28, 12:56 AM CDTTornado WarningTSAOsage34 min
Apr 28, 1:20 AM CDTSevere Thunderstorm WarningTSAWashington40 min
Apr 28, 1:32 AM CDTSevere Thunderstorm WarningTSANowata43 min
Apr 28, 1:55 AM CDTSevere Thunderstorm WarningTSAWashington35 min
Apr 28, 2:00 AM CDTSevere Thunderstorm WarningTSACraig45 min
Apr 28, 2:04 AM CDTSevere Thunderstorm WarningTSAOsage56 min
Apr 28, 2:16 AM CDTSevere Thunderstorm WarningTSANowata44 min
Apr 28, 2:18 AM CDTSevere Thunderstorm WarningTSAOttawa57 min
Apr 28, 2:40 AM CDTSevere Thunderstorm WarningTSAWashington35 min
Apr 28, 2:46 AM CDTSevere Thunderstorm WarningTSANowata44 min
Apr 28, 3:13 AM CDTSevere Thunderstorm WarningTSACraig47 min
Apr 28, 3:35 AM CDTSevere Thunderstorm WarningTSAOttawa40 min
Apr 28, 4:57 PM CDTSevere Thunderstorm WarningTSAPittsburg33 min
Apr 28, 5:03 PM CDTSevere Thunderstorm WarningTSAMuskogee27 min
Apr 28, 5:21 PM CDTSevere Thunderstorm WarningTSASequoyah54 min
Apr 28, 5:32 PM CDTSevere Thunderstorm WarningTSACherokee28 min
Apr 28, 5:49 PM CDTSevere Thunderstorm WarningTSAAdair41 min
Apr 28, 5:51 PM CDTSevere Thunderstorm WarningTSALeFlore54 min
Apr 28, 6:24 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah51 min
Apr 28, 6:41 PM CDTSevere Thunderstorm WarningTSALeFlore49 min

Nearby

Tornado Warnings in Oklahoma, 1996Every tornado warning in 1996Tornadoes in 1996

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.