Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS Tulsa, OK

April 16, 1990Cherokee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 16, 1990, 10:17 PM CDT for Cherokee County, Oklahoma. It was in force for 58 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 16, 1990, 10:17 PM CDT (03:17 UTC)
Expired
Apr 16, 1990, 11:15 PM CDT
In force
58 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Cherokee 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
Apr 16, 10:20 PM CDTHail 0.75Cherokee, 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

Springfield, MO (KUMN), launched 00:00Z, 3.3 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 1990-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 993 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1990-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 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
993 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1295 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 170319
SVRTUL
OKC021-170415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1017 PM CDT MON APR 16 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN EAST CENTRAL OKLAHOMA
 
   ...CHEROKEE COUNTY
 
AT 1017 PM CDT RADAR INDICATES A SEVERE THUNDERSTORM FROM FORT GIBSON
TO JUST WEST OF PEGGS MOVITNG SOUTHEAST AT 20 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN.  FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:03 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers42 min
Apr 16, 7:22 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee53 min
Apr 16, 7:37 PM CDTSevere Thunderstorm WarningTSATulsa68 min
Apr 16, 7:45 PM CDTSevere Thunderstorm WarningTSANowata, Washington60 min
Apr 16, 7:45 PM CDTSevere Thunderstorm WarningTSAOsage60 min
Apr 16, 7:58 PM CDTSevere Thunderstorm WarningTSALeFlore62 min
Apr 16, 7:59 PM CDTSevere Thunderstorm WarningTSAMayes61 min
Apr 16, 8:10 PM CDTSevere Thunderstorm WarningTSAPittsburg65 min
Apr 16, 8:39 PM CDTSevere Thunderstorm WarningTSACreek, Tulsa66 min
Apr 16, 8:50 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee55 min
Apr 16, 9:00 PM CDTSevere Thunderstorm WarningTSASequoyah60 min
Apr 16, 9:36 PM CDTSevere Thunderstorm WarningTSAWagoner69 min
Apr 16, 9:43 PM CDTSevere Thunderstorm WarningTSACreek, Okmulgee, Tulsa62 min
Apr 16, 9:48 PM CDTSevere Thunderstorm WarningTSAPawnee57 min
Apr 16, 10:02 PM CDTSevere Thunderstorm WarningTSAOsage, Tulsa, Washington58 min
Apr 16, 10:21 PM CDTFlash Flood WarningTSACreek3 hr
Apr 16, 10:43 PM CDTSevere Thunderstorm WarningTSAOkmulgee62 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning 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.