Alert archive / Oklahoma / Flash Flood Warnings in 1990

Flash Flood Warning 2, NWS Tulsa, OK

April 16, 1990Creek County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 16, 1990, 10:21 PM CDT for Creek County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Apr 16, 1990, 10:21 PM CDT (03:21 UTC)
Expired: Apr 17, 1990, 1:30 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

County Creek County, OK

The radar

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

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.4 hours before the alert went out and 120 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: 2818 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1378 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 170323
FFWTUL
OKC037-170630-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1021 PM CDT MON APR 16 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  130 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...EASTERN CREEK COUNTY
 
AT 10 20 PM CDT RADAR INDICATES RAINFALL AMOUNTS OF 3 TO 4 INCHES
HAS FALLEN ACROSS PORTIONS OF EASTERN CREEK COUNTY.
 
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT DRIVE YOUR
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY.  THE WATER
MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY.  IF YOUR
VEHICLE GETS CAUGHT IN RISING WATER...ABANDONED _IT QUICKLY.  THEN
MOVE TO HIGHER GROUND.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 7:03 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	42 min
Apr 16, 7:22 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	53 min
Apr 16, 7:37 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	68 min
Apr 16, 7:45 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	60 min
Apr 16, 7:45 PM CDT	Severe Thunderstorm Warning	TSA	Osage	60 min
Apr 16, 7:58 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	62 min
Apr 16, 7:59 PM CDT	Severe Thunderstorm Warning	TSA	Mayes	61 min
Apr 16, 8:10 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	65 min
Apr 16, 8:39 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	66 min
Apr 16, 8:50 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	55 min
Apr 16, 9:00 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	60 min
Apr 16, 9:36 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	69 min
Apr 16, 9:43 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	62 min
Apr 16, 9:48 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	57 min
Apr 16, 10:02 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Tulsa, Washington	58 min
Apr 16, 10:17 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	58 min
Apr 16, 10:43 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	62 min

Nearby

Flash Flood Warnings in Oklahoma, 1990 Every flash flood 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; the sounding from the Mesonet's radiosonde archive.