Alert archive / Oklahoma / Flash Flood Warnings in 1990
Flash Flood Warning 19, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Apr 26, 1990, 12:13 AM CDT for Love County, Oklahoma. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 26, 1990, 12:13 AM CDT (05:13 UTC)
- Expired
- Apr 26, 1990, 3:45 AM CDT
- In force
- 4 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Love 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, 5.2 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 25 J/kg
- Mixed-layer CIN
- -264 J/kg
- Mixed-layer LCL
- 972 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOKC 260515 FFWOKC OKC019-049-063-069-085-095-099-260845- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 1213 AM CDT THU APR 26 1990 THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 345 AM CDT FOR THE FOLLOWING OKLAHOMA LOCATIONS... IN SOUTHEAST OKLAHOMA ...CARTER COUNTY...GARVIN COUNTY...HUGHES COUNTY...JOHNSTON COUNTY ...LOVE COUNTY...MARSHALL COUNTY...MURRAY COUNTY AT 1213 AM RADAR INDICATED A LINE OF STRONG THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL FROM JUST EAST OF SEMINOLE...TO NEAR ADA... TO SPRINGER...TO MARIETTA. THE LINE OF STORMS WAS 20 MILES WIDE AND MOVING EAST AT 5 TO 10 MPH. INDIVIDUAL STORMS WITHIN THE LINE WERE TRACKING NORTHEAST AT 35 MPH. DANGEROUS FLASH FLOODING HAS BEEN REPORTED FROM THE STORMS WITH RAINFALL AMOUNTS AVERAGING 2 TO 4 INCHES WITH SOME LOCALLY HIGHER AMOUNTS POSSIBLE. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, Apr 25, 6:26 PM CDT, 5 hours 47 minutes before
TXZ020-019-260130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 626 PM CDT WED APR 25 1990 THUNDERSTORM WITH HEAVY RAIN AND SOME PEA TO OCCASIONAL MARBLE SIZE HAIL MOVING THROUGH THE CITY. AT 625 PM RADAR SHOWED A THUNDERSTORM IN THE SOUTHERN SECTIONS OF THE CITY MOVING NORTH NORTHEAST AT 30 MPH. SEVERAL REPORTS OF HEAQVY RAIN AND SMALL HAIL HAVE BEEN REPORTED WITH THIS STORM. SOME ADDITIONAL STREET FLOODING MAY OCCUR AS THIS THUNDERSTORM COMPLEX MOVES ACROSS THE CITY. OTHER STORMS EXTENDED FROM NEAR GRAHAM TO HENRIETTA AND IN SOUTHERN JACK COUNTY. HENRIETTA REPORTED PEA SIZE HAIL AT 605 PM. MORE INTENSE STORMS WERE NORTH OF THE DALLAS FORT WORTH METROPLEX. MOVEMENT WAS NORTH NORTHEAST AT 30 MPH. A TORNADO WATCH IS IN EFFECT FOR PARTS OF NORTH CENTRAL TEXAS EAST OF THE LOCAL AREA. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO STRIKE WITH LITTLE ADVANCE NOTICE. BE PREPARED TO TAKE PRECAUTIONS IF S9EVERE WEATHER IS REPORTED.
Special weather statement, Apr 25, 8:07 PM CDT, 4 hours 6 minutes before
TXZ020-260215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 806 PM CDT WED APR 25 1990 A FLASH FLOOD WARNING IS IN EFFECT FOR YOUNG COUNTY UNTIL 1115 PM CDT. AT 8PM CDT THE WICHITA FALLS RADAR SHOWED A 10 TO 15 MILE WIDE LINE OF THUNDERSTORMS GENERALLY ORIENTED NORTH TO SOUTH FROM BETWEEN WICHITA FALLS AND HENRIETTA TO YOUNG COUNTY. MOVEMENT WAS SLIGHTLY EAST OF NORTH AT 30 MPH. THE GRAHAM FIRE DEPARTMENT REPORTED 2.21 INCHES OF RAIN TODAY BUT 1.10 INCHES HAD BEEN OBSERVED IN ABOUT AN HOURS TIME AAROUND 6 PM THIS EVENING. WATER WAS BEGINNING TO BACK-UP ON SOME CITY STREETS. ADDITIONAL THUNDERSTORM ACTIVITY TO THE SOUTH WILL AFFECT THE COUNTY IN THE NEXT SEVERAL HOURS. VARIOUS SIZES OF HAIL WERE REPORTED IN AND NEAR THE HEAVIEST THUNDERSTORMS.
Local storm report, Apr 25, 8:08 PM CDT, 4 hours 5 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
804 PM CDT WED APR 25 1990
...ADDITIONAL REPORTS FROM TUESDAY NIGHT THE 24TH AND WEDNESDAY
MORNING THE 25TH...
TIME(CDT) COUNTY EVENT
1145 PM WOODWARD GOLFBALL HAIL 8SE OF WOODWARD
1202-1217AM WOODWARD DIME SIZE HAIL FELL FOR 15 MINUTES 7N AND
2W OF MOORELAND...ESTIMATED 80 MPH WIND.
100AM WOODS QUARTER SIZE HAIL 5NW OF LOOKOUT
100AM HARPER DIME SIZE HAIL 13N AND 2E OF SELMAN
...ADDITIOANL DETAILS ON THE TORNADO DAMAGE IN SHATTUCK...
1023-1100(APPROXIMATE) ELLIS COUNTY
CONTINUOUS DAMAGE FROM 6 MILES SOUTH OF SHATTUCK ALONG ROUTH 283
NORTHWEST TO 3/4 MILE NORTH OF SHATTUCK. PATH WAS 2 BLOCKS WIDE IN
TOWN. 4 MINOR INJURIES, 1 MAJOR INJURY (PERSON SEEKING SHELTER WAS
HIT BY A CAR).
DAMAGE IN SHATTUCK WAS ESTIMATED BY CIVIL DEFENSE DIRECTOR TO BE
F-2 WITH EMBEDDED F-3. DAMAGE INCLUDED:
10 BUILDINGS DESTROYED(MAINLY BUSINESSES ON MAIN STREET)
17 BUILDINGS WITH MAJOR DAMAGE(MAINLY BUSINESSES)
41 BUILDINGS WITH MINOR DAMAGE(MOSTLY HOMES)
24 BUILDINGS WITH SIGNIFICANT ROOF DAMAGE
6 OUT-BUILDINGS DESTROYED
3 T&RAILER HOMES DESTROYEDLocal storm report, Apr 25, 10:44 PM CDT, 1 hour 29 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 1044 PM CDT WED APR 25 1990 TIME(CDT) COUNTY EVENT 710PM COTTON NICKEL SIZE HAIL AT WALTERS 840PM OKLAHOMA DIME SIZE HAIL 1 MILE SOUTH OF HARRAH
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 7:18 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 42 min |
| Apr 25, 7:41 PM CDT | Severe Thunderstorm Warning | OUN | Grady | 49 min |
| Apr 25, 7:56 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland | 49 min |
| Apr 25, 8:19 PM CDT | Tornado Warning | OUN | Carter | 26 min |
| Apr 25, 8:29 PM CDT | Severe Thunderstorm Warning | OUN | Oklahoma | 46 min |
| Apr 25, 8:45 PM CDT | Tornado Warning | OUN | Carter | 45 min |
| Apr 25, 10:13 PM CDT | Flash Flood Warning | OUN | Garvin, Murray | 2 hr |
| Apr 25, 11:37 PM CDT | Flash Flood Warning | OUN | Pontotoc, Pottawatomie, Seminole | 4 hr |
| Apr 26, 12:13 AM CDT | Flash Flood Warning | OUN | Carter, Johnston, Marshall, Murray | 4 hr |
| Apr 26, 12:13 AM CDT | Flash Flood Warning | OUN | Garvin | 4 hr |
| Apr 26, 12:13 AM CDT | Flash Flood Warning | OUN | Hughes | 4 hr |
| Apr 26, 3:44 AM CDT | Flash Flood Warning | OUN | Carter, Murray, Pontotoc | 3 hr |
| Apr 26, 3:44 AM CDT | Flash Flood Warning | OUN | Love | 3 hr |
| Apr 26, 8:52 AM CDT | Flash Flood Warning | OUN | Carter, Jefferson, Love | 3 hr |
| Apr 26, 8:52 AM CDT | Flash Flood Warning | OUN | Garvin, Murray, Pontotoc | 3 hr |
| Apr 26, 8:52 AM CDT | Flash Flood Warning | OUN | Stephens | 3 hr |
Nearby
Flash Flood Warnings in Oklahoma, 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.