Alert archive / Oklahoma / Flash Flood Warnings in 1988

Flash Flood Warning 6, NWS Norman, OK

June 2, 1988Johnston County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 2, 1988, 4:52 PM CDT for Johnston County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 2, 1988, 4:52 PM CDT (21:52 UTC)
Expired: Jun 2, 1988, 8:00 PM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Whole counties

County Johnston 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, 9.9 hours before the alert went out and 148 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: 1223 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1168 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

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, Jun 2, 1:01 PM CDT, 3 hours 51 minutes before

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
100 PM CDT THU JUN 02 1988

...REFER TO SEVERE THUNDERSTORM WATCH 190 IN EFFECT UNTIL 8 PM...

OTHERWISE...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS FOR MUCH
OF SOUTHERN AND EASTERN OKLAHOMA...TO THE SOUTHEAST OF A LINE FROM
ALTUS TO CLINTON TO STILLWATER TO GROVE. THIS MODERATE RISK AREA
INCLUDES THE OKLAHOMA CITY AND TULSA METROPOLITAN AREAS. THERE IS A
SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF NORTHERN OKLAHOMA
...TO THE EAST OF A CLINTON TO ALVA LINE...AND TO THE NORTH OF THE
CLINTON TO STILLWATER TO GROVE LINE.

EARLY THIS AFTERNOON...AN UPPER LEVEL STORM SYSTEM IS CENTERED NEAR
CONCORDIA KANSAS. AT THE SURFACE...A LOW PRESSURE AREA IS LOCATED IN
NORTH CENTRAL KANSAS WITH A WEAK COLD FRONT EXTENDING SOUTHWARD FROM THE
LOW NEAR A WICHITA KS...OKLAHOMA CITY...WICHITA FALLS TX LINE.

THE ATMOSPHERE OVER OKLAHOMA IS VERY UNSTABLE THIS AFTERNOON. LOW LEVEL
MOISTURE IS PLENTIFUL...AND DAYTIME HEATING IS HELPING TO CONTINUE
DESTABLIZING THE ATMOSPHERE. THE UPPER LEVEL STORM SYSTEM OVER KANSAS
HAS CHANGED ITS DIRECTION OF MOVEMENT AND IS NOW MOVING SOUTHWARD
TOWARD OKLAHOMA. THUNDERSTORMS WILL INCREASE IN INTENSITY AND
COVERAGE DURING THE AFTERNOON HOURS. THE MOST UNSTABLE AIR CAN BE FOUND
IN THE MODERATE RISK AREA...ALLOWING THE DEVELOPMENT OF SEVERE
THUNDERSTORMS THIS AFTERNOON AND TONIGHT.

THE MAIN SEVERE WEATHER THREAT THIS AFTERNOON AND TONIGHT WILL BE HAIL.
THE THUNDERSTORMS WILL MOVE RATHER SLOWLY...AND SOME LOCATIONS MAY ALSO
RECEIVE HEAVY RAINFALL.

CIVIL DEFENSE AND SPOTTER NETWORKS IN THE SEVERE WEATHER RISK AREAS
SHOULD BE PREPARED FOR QUICK ACTIVATION THIS IAFTERNOON AND EVENING.

Special weather statement, Jun 2, 1:09 PM CDT, 3 hours 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
115 PM CDT THU JUN 2 1988

...A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR PERSONS IN JACK
AND YOUNG COUNTIES YNTIL 130 PM CDT...

AN ISOLATED BUT MASSIVE THUNDERSTORM WAS IN PROGRESS BETWEEN GRAHAM
AND JACKSBORO TEXAS. IT WAS MOVING/BUILDING EAST AT 10 MPH.

COPIOUS QUANITIES OF PEA SIZE HAIL WAS REPORTED IN THE GRAMAH AREA
AROUND 1PM CDT. THIS WAS ACCOMPANIED BY VERY HEAVY RAIN AND FREQUENT
LIGHTNING.

THE STRONGEST PORTION OF THIS THUNDERSTORM WAS NOW IN WESTERN JACK
COUNTY MOVING TOWARD JACKSBORO.

BE ALERT TO FUTURE RANDOM THUNDERSTORM DEVELOPMENT LATTER THIS
AFTERNOON ACROSS THIS SECTION OF NORTH CENTRAL TEXAS.

Special weather statement, Jun 2, 1:42 PM CDT, 3 hours 10 minutes before

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Local storm report, Jun 2, 3:02 PM CDT, 1 hour 50 minutes before

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Local storm report, Jun 2, 3:48 PM CDT, 1 hour 4 minutes before

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Local storm report, Jun 2, 4:39 PM CDT, 13 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 2, 1:21 PM CDT	Tornado Warning	OUN	Noble	54 min
Jun 2, 1:32 PM CDT	Severe Thunderstorm Warning	OUN	Choctaw	43 min
Jun 2, 1:51 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	54 min
Jun 2, 2:03 PM CDT	Severe Thunderstorm Warning	OUN	Johnston, Murray	42 min
Jun 2, 2:15 PM CDT	Severe Thunderstorm Warning	OUN	Choctaw	45 min
Jun 2, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Payne	66 min
Jun 2, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Oklahoma	66 min
Jun 2, 2:53 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	67 min
Jun 2, 3:21 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Choctaw, Johnston, Pushmataha	69 min
Jun 2, 3:26 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Pottawatomie	64 min
Jun 2, 4:03 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Oklahoma	57 min
Jun 2, 4:20 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	55 min
Jun 2, 4:40 PM CDT	Severe Thunderstorm Warning	OUN	Bryan, Johnston, Marshall	65 min
Jun 2, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Pontotoc	65 min
Jun 2, 5:20 PM CDT	Severe Thunderstorm Warning	OUN	Johnston, Pontotoc	40 min
Jun 2, 5:26 PM CDT	Severe Thunderstorm Warning	OUN	Carter	49 min

Nearby

Flash Flood Warnings in Oklahoma, 1988 Every flash flood warning in 1988

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.