Alert archive / Oklahoma / Flash Flood Warnings in 1998

Flash Flood Warning 51, NWS Norman, OK

October 31, 1998Kingfisher County, Oklahoma

NWS Norman, OK issued this flash flood warning at Oct 31, 1998, 9:24 PM CST for Kingfisher County, Oklahoma. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 31, 1998, 9:24 PM CST (03:24 UTC)
Expired
Nov 1, 1998, 6:00 AM CST
In force
9 hr
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Kingfisher County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.4 hours before the alert went out and 94 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 1998-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Norman, OK at 00:00Z on 1998-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1212 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
255 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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.

NWS Norman, OK wrote its last area forecast discussion before this flash flood warning went out at Oct 31, 9:00 PM CST, 24 minutes earlier.

Area forecast discussion, Oct 31, 9:00 PM CST, 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
900 PM CST SAT OCT 31 1998

THE SURFACE FRONT STRETCHED FROM TIPTON TO GUTHRIE AT 9 PM. THE
SOUTHERN PART IS MOVING VERY SLOWLY TO THE EAST WITH GUSTY NORTH
WINDS BEHIND IT. THROUGH CENTRAL AND NORTHEAST OK THE FRONT WAS
MOVING VERY LITTLE. A NEW LOW PRESSURE CENTER IS DEVELOPING ALONG
THE FRONT JUST SOUTH OF THE RED RIVER. THIS WILL ENHANCE FLOODING
PROBLEMS IN NORTHERN OK AS LOW LEVEL WINDS INCREASE FROM THE SOUTH
ON THE EAST SIDE OF THE LOW AND TRANSPORT SATURATED AIR OVER THE
FRONTAL SURFACE. ADDITIONALLY, THE UPPER LOW CENTER IS APPROACHING
THE TX PANHANDLE AND THIS MEANS COLDER MID-LEVEL TEMPERATURES WILL
MOVE INTO OKLAHOMA ENHANCING UPWARD LIFT.

A FLOOD WARNING WILL BE ISSUED SHORTLY FOR NORTH CENTRAL OKLAHOMA.
ADDITIONAL 3 TO 4 INCHES OF RAIN IS LIKELY OVERNIGHT WHICH WOULD
CAUSE WIDESPREAD FLOODING IN THAT PART OF THE STATE.

.OUN...
OK...FLOOD WARNING TONIGHT FOR ZONES 6,7,8,12,13,18
FLASH FLOOD WATCH THROUGH SUNDAY FOR ZONES OKZ004>022.
.TX...NONE.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 31, 9:24 PM CSTFlash Flood WarningOUNAlfalfa, Garfield, Grant, Kay, Noble9 hr
Nov 1, 6:23 AM CSTFlash Flood WarningOUNGarfield, Grant, Kay, Noble4 hr

Nearby

Flash Flood Warnings in Oklahoma, 1998Every flash flood warning in 1998

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.