Alert archive / Oklahoma / Flash Flood Warnings in 1986

Flash Flood Warning 32, NWS Norman, OK

October 2, 1986Cleveland County, McClain County, Oklahoma

NWS Norman, OK issued this flash flood warning at Oct 2, 1986, 5:35 PM CDT for Cleveland County, McClain County, Oklahoma. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Oct 2, 1986, 5:35 PM CDT (22:35 UTC)
Expired
Oct 2, 1986, 7:30 PM CDT
In force
115 min
Issued by
NWS Norman, OK
Area
Whole counties

Counties Cleveland County, OK, McClain 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

Ok Cty/Will Rgrs, OK (KOKC), launched 12:00Z, 10.6 hours before the alert went out and 38 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, Ok Cty/Will Rgrs, OK at 12:00Z on 1986-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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, Ok Cty/Will Rgrs, OK at 12:00Z on 1986-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.19395878Sfc1 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
44 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
1213 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 2, 1:52 PM CDT, 3 hours 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
150 PM CDT THU OCT 2 1986

A THUNDERSTORM HAS INTENSIFIED DURING THE PAST 30 MINUTES OVER
EXTREME NORTHWESTERN CANADIAN COUNTY. AT 145 PM CDT THE STORM WAS
CENTERED 5 MILES NORTHEAST OF GEARY AND WAS MOVING TOWARD THE
NORTHEAST AT 30 MILES PER HOUR. THE THUNDERSTORM IS CAPABLE OF
PRODUCING RAINFALL RATES OF 4 INCHES PER HOUR ALONG WITH SOME
VERY SMALL HAIL. PERSONS IN THE DOVER AND HENNESSEY AREA ARE
NEAR THE PROJECTED PATH OF THIS STORM AND SHOULD TAKE NECESSARY
PRECAUTIONS.

WITH THE NEARLY SATURATED ENVIRONMENT OF THE THUNDERSTORM...THERE
WILL BE MANY LOW-HANGING CLOUDS AND POSSIBLY SOME FUNNEL CLOUDS
WITH THIS STORM. THE ATMOSPHERIC CONDITIONS ARE NOT FAVORABLE FOR
THE FORMATION OF STRONG TORNADOES...ALTHOUGH A WEAK TORNADO COULD
OCCUR. THESE WEAK TORNADOES DEVELOP WITH LITTLE ADVANCE INDICATION
ON RADAR. STAY TUNED TO NOAA WEATHER RADIO OR TO COMMERCIAL RADIO OR
TELEVISION FOR LATER UPDATES.
Local storm report, Oct 2, 3:49 PM CDT, 1 hour 46 minutes before
DELAYED STORM REPORT FROM OCTOBER 1 1986
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
350 PM CDT THU OCT 2 1986

TIME(CDT)  COUNTY      REPORT

2020       HARMON      3/4 INCH HAIL 15 MILES NORTH OF 'HOLLIS
2020       BECKHAM     3/4 INCH HAIL NEAR ERICK
2210       WOODWARD    GOLFBALL-SIZED HAIL 6 MILES SOUTHEAST OF
                       WOODWARD
Special weather statement, Oct 2, 3:51 PM CDT, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
350 PM CDT THU OCT 2 1986

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES OF
NORTH CENTRAL TEXAS UNTIL 11 PM CDT...BAYLOR...FOARD...HARDEMAN...
KNOX...WICHITA...AND WILBARGER...

AT 345 PM THE WICHITA FALLS RADAR SHOWED NUMEROUS SHOWERS AND
SCATTERED VERY HEAVY THUNDERSTORMS OCCURRING 40 MILES EITHER SIDE
OF A LINE FROM TULSA OKLAHOMA TO LUBBOCK TEXAS.

THE ONLY PRECIPITATION OCCURRING IN THIS PORTION OF NORTH TEXAS
WAS SCATTERED ACROSS NORTHERN PORTIONS OF HARDEMAN COUNTY. THIS
PRECIPITATION WAS ONLY LIGHT IN INTENSITY..

HOWEVER THE POTENTIAL FOR SEVERE WEATHER EXISTS ACROSS THIS PORTION
OF NORTH TEXAS FOR TONIGHT AND RESIDENTS ARE URGED TO STAY TUNED
TO NOAA WEATHER OR COMMERICAL TV OR RADIO FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

ADDITIONAL STATEMENTS WILL BE ISSUED THROUGHOUT THE EVENING.
Special weather statement, Oct 2, 4:53 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
450 PM CDT THU OCT 2 1986

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES OF
NORTH CENTRAL TEXAS UNTIL 11 PM CDT...BAYLOR...FOARD...HARDEMAN...
KNOX...WICHITA...AND WILBARGER...

...A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR THAT PORTION OF NORTH TEXAS
ALONG AND NORTHWEST OF A LINE FROM MONTAGUE TO ABILENE.

AT 445 PM CDT THE WICHITA FALLS RADAR SHOWED NUMEROUS SHOWERS AND
VERY STRONG THUNDERSTORMS OCCURRING 40 MILES EITHER SIDE OF A LINE
FROM LUBBOCK TEXAS TO TULSA OKLAHOMA.

NO PRECIPTITATION WAS OCCURRING IN THIS PORTION OF NORTH TEXAS...HOWEVER
VERY STRONG THUNDERSTORMS WERE OCCURRING TO THE SOUTHWEST OF CHrILDRESS.
THIS ACTIVITY COULD POSSIBLY MOVE INTO WESTERN AND NORTHWESTERN PORTIONS
OF HARDEMAN COUNTY DURING THE NEXT HOUR.

MOVEMENT OF ALL PRECIPITATION TO THE NORTHEAST AT 30 MPH.

ADDITIONAL STATEMENTS WILL BE ISSUED THROUGHOUT THE EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 8:00 PM CDTTornado WarningOUNHarmon40 min
Oct 1, 8:04 PM CDTSevere Thunderstorm WarningOUNBeckham56 min
Oct 1, 8:18 PM CDTTornado WarningOUNBeckham27 min
Oct 1, 8:37 PM CDTTornado WarningOUNBeckham, Greer38 min
Oct 1, 9:06 PM CDTTornado WarningOUNGreer34 min
Oct 1, 9:27 PM CDTTornado WarningOUNCuster, Washita33 min
Oct 1, 9:48 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward47 min
Oct 1, 9:59 PM CDTTornado WarningOUNKiowa, Washita41 min
Oct 2, 9:04 AM CDTFlash Flood WarningOUNCanadian, Logan, Oklahoma116 min
Oct 2, 9:04 AM CDTFlash Flood WarningOUNCleveland116 min
Oct 2, 10:16 AM CDTTornado WarningOUNLogan, Oklahoma59 min
Oct 2, 10:29 AM CDTFlash Flood WarningOUNKingfisher2 hr
Oct 2, 10:36 AM CDTFlash Flood WarningOUNGrady54 min
Oct 2, 11:08 AM CDTTornado WarningOUNLogan, Payne37 min
Oct 2, 11:27 AM CDTFlash Flood WarningOUNGarfield93 min
Oct 2, 1:31 PM CDTFlash Flood WarningOUNCanadian, Kingfisher119 min
Oct 2, 1:51 PM CDTFlash Flood WarningOUNKay, Noble2 hr
Oct 2, 2:49 PM CDTFlash Flood WarningOUNLogan, Oklahoma3 hr
Oct 2, 3:28 PM CDTFlash Flood WarningOUNCanadian, Kingfisher3 hr
Oct 2, 4:12 PM CDTTornado WarningOUNLogan33 min
Oct 2, 4:27 PM CDTFlash Flood WarningOUNGrady93 min
Oct 2, 5:03 PM CDTTornado WarningOUNLogan32 min
Oct 2, 5:35 PM CDTTornado WarningOUNCleveland, McClain30 min
Oct 2, 6:05 PM CDTSevere Thunderstorm WarningOUNLincoln, Pottawatomie40 min
Oct 2, 6:28 PM CDTTornado WarningOUNLincoln, Pottawatomie32 min

Nearby

Flash Flood Warnings in Oklahoma, 1986Every flash flood warning in 1986

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.