Alert archive / Oklahoma / Tornado Warnings in 1990

Tornado Warning 8, NWS Tulsa, OK

May 16, 1990Osage County, Washington County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 16, 1990, 12:30 AM CDT for Osage County, Washington County, Oklahoma. It was in force for 45 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
May 16, 1990, 12:30 AM CDT (05:30 UTC)
Expired
May 16, 1990, 1:15 AM CDT
In force
45 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Osage County, OK, Washington County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 16, 12:35 AM CDTHail 0.88Osage, OK
May 16, 12:45 AM CDTHail 0.88Washington, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.5 hours before the alert went out and 197 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 1990-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2163 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1990-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 square meters per square second.1939587897117Sfc1 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
2163 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1065 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
1.9
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 160530
TORTUL
OKC113-147-160615-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1230 AM CDT WED MAY 16 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...SOUTHERN OSAGE COUNTY...SOUTHERN WASHINGTON COUNTY
 
AT 1228 AM THE TULSA WEATHER RADAR INDICATED A POSSIBLE TORNADO NEAR
BARNSDALL MOVING TO THE EAST AT 35 MPH. THIS TORNADO WILL PASS NEAR
AVANT AND RAMONA.
 
WATCH FOR SIGNS OF DEVELOPING STORMS.  LARGE HAILSTONES AND UNUSUALLY
LOW SWIRLING CLOUDS ARE MANY TIMES SEEN NEAR DEVELOPING TORNADOES.
STRONG DAMAGING WINDS AND TORNADOES OFTEN PRODUCE A LOUD ROARING
SOUND THAT CAN BE HEARD IN THE VICINITY OF STORMS. FREQUENT AND
DANGEROUS LIGHTNING OCCURS WITH MOST SEVERE THUNDERSTORMS.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE IN THE
PATH OF THIS TORNADO MOVE TO zA 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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:52 PM CDTSevere Thunderstorm WarningTSAPawnee53 min
May 15, 8:08 PM CDTTornado WarningTSAPawnee37 min
May 15, 8:37 PM CDTSevere Thunderstorm WarningTSACreek53 min
May 15, 8:48 PM CDTSevere Thunderstorm WarningTSAPawnee42 min
May 15, 9:07 PM CDTTornado WarningTSACreek53 min
May 15, 9:32 PM CDTSevere Thunderstorm WarningTSAOsage43 min
May 15, 9:43 PM CDTSevere Thunderstorm WarningTSATulsa47 min
May 15, 10:07 PM CDTTornado WarningTSATulsa38 min
May 15, 10:10 PM CDTSevere Thunderstorm WarningTSAOsage65 min
May 15, 10:16 PM CDTSevere Thunderstorm WarningTSAWagoner44 min
May 15, 10:42 PM CDTSevere Thunderstorm WarningTSATulsa, Washington48 min
May 15, 10:57 PM CDTSevere Thunderstorm WarningTSAPawnee48 min
May 15, 11:09 PM CDTSevere Thunderstorm WarningTSARogers51 min
May 15, 11:09 PM CDTSevere Thunderstorm WarningTSAOsage51 min
May 15, 11:33 PM CDTSevere Thunderstorm WarningTSAMayes42 min
May 15, 11:47 PM CDTSevere Thunderstorm WarningTSARogers, Washington43 min
May 15, 11:58 PM CDTSevere Thunderstorm WarningTSAOsage47 min
May 16, 12:12 AM CDTSevere Thunderstorm WarningTSADelaware48 min
May 16, 12:24 AM CDTSevere Thunderstorm WarningTSACraig51 min
May 16, 2:07 PM CDTSevere Thunderstorm WarningTSANowata53 min
May 16, 2:39 PM CDTSevere Thunderstorm WarningTSACraig51 min
May 16, 2:56 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers64 min
May 16, 3:54 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee, Wagoner51 min
May 16, 4:02 PM CDTSevere Thunderstorm WarningTSACherokee, Delaware, Mayes58 min
May 16, 4:27 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg48 min
May 16, 4:47 PM CDTSevere Thunderstorm WarningTSACherokee43 min
May 16, 5:20 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Pittsburg40 min
May 16, 5:33 PM CDTSevere Thunderstorm WarningTSAAdair27 min
May 16, 5:45 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah60 min
May 16, 6:00 PM CDTSevere Thunderstorm WarningTSALatimer30 min

Nearby

Tornado Warnings in Oklahoma, 1990Every tornado warning in 1990Tornadoes in 1990

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.