Alert archive / Arkansas / Flash Flood Warnings in 1990

Flash Flood Warning 45, NWS Tulsa, OK

October 8, 1990Polk County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Oct 8, 1990, 11:07 AM CDT for Polk County, Arkansas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Oct 8, 1990, 11:07 AM CDT (16:07 UTC)
Expired
Oct 8, 1990, 2:15 PM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

County Polk County, AR

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

Longview/Gregg, TX (KGGG), launched 12:00Z, 4.1 hours before the alert went out and 240 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, Longview/Gregg, TX at 12:00Z on 1990-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 777 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, Longview/Gregg, TX at 12:00Z on 1990-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
777 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
658 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 081608
FFWFSM
ARC113-081915-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1107 AM CDT MON OCT 8 1990
 
THE NATIONAL WEATHER SERVICE IN FORT SMITH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ARKANSAS
 
   ...POLK COUNTY
 
..HEAVY RAIN MOVING BACK INTO POLK COUNTY ARKANSAS. MANY STREETS IN
MENA ARKANSAS IN POLK COUNTY ARE WATER COVERED AND DANGEROUS. MANY
SMALL STREAMS ARE BANKFULL AND ABOVE.DUE TO THE HEAVY RAIN BEGINNING
AGAIN FLOODING WILL OCCUR OVER MANY AREAS OF POLK COUNTY FOR THE
NEXT FEW HOURS.
 
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Oct 8, 6:00 AM CDT, 5 hours 7 minutes before
OKZ007-008-012-013-081145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
600 AM CDT MON OCT 8 1990

        ...GET READY FOR A COOL AND DAMP DAY...

A RATHER COOL AND DAMP DAY WILL START THE WEEK IN NORTHEAST
OKLAHOMA AND SURROUNDING AREAS. A SHALLOW LAYER OF COLD AIR NEAR
THE SURFACE WILL CAUSE THE COOL TEMPERATURES WHILE VERY MOIST AIR
ABOVE THE SURFACE WILL CAUSE CLOUDS AND OCCASIONAL PRECIPITATION.
LIGHT TO MODERATE RAIN WILL LIKELY FALL FOR MOST OF TODAY AND
LAST THROUGH TONIGHT. A STRONG UPPER LEVEL STORM SYSTEM TO THE
WEST OF THE AREA WILL MOVE EAST AND BRING THE THREAT OF A FEW
THUNDERSTORMS BOTH TODAY AND TONIGHT.

HIGH TEMPERATURES TODAY IN NORTHEAST OKLAHOMA WILL LIKELY REMAIN IN
THE 50S IN MOST AREAS WITH NORTH WINDS AROUND 15 MPH. IF YOU PLAN
TO BE OUTDOORS TODAY...REMEMBER TO DRESS APPROPRIATELY AND TAKE ALONG
YOUR UMBRELLA. THE RAIN IS EXPECTED TO CONTINUE THROUGH TUESDAY
MORNING WITH CONTINUED COOL TEMPERATURES AND STRONG NORTH WINDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 12:32 AM CDTFlash Flood WarningTSAPolk3 hr
Oct 8, 3:29 AM CDTFlash Flood WarningTSAPolk3 hr
Oct 8, 6:29 AM CDTFlash Flood WarningTSAPolk2 hr

Nearby

Flash Flood Warnings in Arkansas, 1990Every 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.