Alert archive / Oklahoma / Flash Flood Warnings in 1992
Flash Flood Warning 3, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Apr 16, 1992, 7:57 PM CDT for Grady County, Oklahoma. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1992, 7:57 PM CDT (00:57 UTC)
- Expired
- Apr 16, 1992, 11:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Grady County, OK
The radar
The Norman radar (KTLX), 65 km from the middle of the area, began a volume at 01:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.0 hours before the alert went out and 49 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
- 475 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 85 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 170058 FFWOKC OKC051-170400- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 757 PM CDT THU APR 16 1992 THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM CDT FOR THE FOLLOWING OKLAHOMA LOCATIONS... IN CENTRAL OKLAHOMA ...GRADY COUNTY AT 756 PM CDT DOPPLER RADAR INDICATED CONTINUING HEAVY RAIN OVER SOUTHERN AND CENTRAL SECTIONS OF GRADY COUNTY WITH MORE STORMS TO THE SOUTHWEST LIKELY TO MOVE OVER GRADY COUNTY DURING THE NEXT SEVERAL HOURS. NUMEROUS REPORTS OF CARS WASHED OFF ROADWAYS AND WATER UP TO CAR-WINDOW LEVEL HAVE BEEN RECEIVED. 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 16, 4:44 PM CDT, 3 hours 13 minutes before
TXZ019-020-162245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 445 PM CDT THU APR 16 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CDT FOR COTTON COUNTY OF SOUTHERN OKLAHOMA...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR HARDEMAN AND FOARD COUNTIES OF NORTH TEXAS UNTIL 900 PM CDT... AT 440 PM WICHITA FALLS RADAR CONTINUED TO INDICATE THUNDERSTORMS GENERALLY ALONG OR NORTH OF A CHILDRESS...LAWTON AND WEWOKA OKLAHOMA. MOVEMENT OF INDIVIDUAL STORMS WAS TOWARDS THE EAST NORTHEAST AT 10 MPH. THE LINE OF THUNDERSTORMS HAS SHOWED LITTLE MOVEMENT TOWARDS THE SOUTH. THE STRONGEST THUNDERSTORMS WERE NOTED WEST AND NORTH OF CHILDRESS... NEAR HOBART AND CHICKASHA. A LARGE AREA OF RAIN AND ISOLATED THUNDERSTORMS HAS PERSISTED BETWEEN ABILINE AND STEPHENSVILLE FOR MUCH OF THE DAY. THIS SECTION NORTH CENTRAL TEXAS MAY SEE THUNDERSTORMS DEVELOP LATTER TONIGHT.
Local storm report, Apr 16, 5:09 PM CDT, 2 hours 48 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
507 PM CDT THU APR 16 1992
TIME(CDT) COUNTY REPORT
315 PM GRADY DIME SIZE HAIL AT NINNEKAH HIGH SCHOOL.
345 PM GREER ONE INCH HAIL 1 1/2 S OF MANGUM.
410 PM GRADY HALF DOLLAR SIZE HAIL IN CHICKASHA.
417 PM LINCOLN DIME SIZE HAIL IN JACKTOWN.
428 PM GRADY DIME SIZE HAIL IN CHICKASHA.
430 PM KIOWA DIME SIZE HAIL 2 N AND 3/4 E OF
COOPERTON.
434 PM GRADY GOLFBALL SIZE HAIL IN CHICKASHA.
DIME TO NICKEL SIZE HAIL 2-3 INCHES
DEEP.
503 PM GRADY 2-3 FEET OF WATER ACROSS SEVERAL STREETS
IN CHICKASHA.Local storm report, Apr 16, 5:17 PM CDT, 2 hours 40 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 516 PM CDT THU APR 16 1992 TIME(CDT) COUNTY REPORT 428 PM OKLAHOMA NICKEL SIZE HAIL IN DEL CITY.
Special weather statement, Apr 16, 5:41 PM CDT, 2 hours 16 minutes before
TXZ019-020-162340- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 540 PM CDT THU APR 16 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CDT FOR COTTON COUNTY OF SOUTHERN OKLAHOMA...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR HARDEMAN AND FOARD COUNTIES OF NORTH TEXAS UNTIL 900 PM CDT... AT 535 PM...THE WICHITA FALLS RADAR SHOWED A SEVERE THUNDERSTORM MOVING THRU THE CHILDRESS VICINITY. THIS THUNDERSTORM HAS PRODUCED LARGE HAIL TO ONE AND ONE-HALF INCH IN DIAMETER AT THE CHILDRESS AIRPORT. THIS THUNDERSTORM WILL MOVE INTO WESTERN HARDEMAN COUNTY WITHIN THE HOUR. A SEVERE THUNDERSTORM WARNING WILL LIKELY BE NEEDED. ELSEWHERE...THUNDERSTORMS CONTINUE GENERALL^Y ALONG AND NORTH OF A ALTUS...LAWTON OKLAHOMA LINE. THIS AREA OF THUNDERSTORMS WAS MOVING SLOWLY TOWARDS THE SOUTHEAST WHILE INDIVIDUAL THUNDERSTORMS MOVE TOWARDS THE EAST NORTHEAST.
Local storm report, Apr 16, 6:20 PM CDT, 1 hour 37 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
618 PM CDT THU APR 16 1992
TIME(CDT) COUNTY REPORT
500 PM CADDO DIME SIZE HAIL 4.5 MILES SE OF VERDEN.
503 PM GRADY 2 TO 3 FEET OF WATER ACROSS SEVERAL STREETS
IN CHICKASHA.
545 PM JACKSON UP TO HALF DOLLAR SIZE HAIL 3.25 MILES NW
OF ALTUS.
551 PM COMANCHE HAIL APPROACHING GOLFBALL SIZE 7 MILES
NORTH OF LAWTON.
555 PM COMANCHE ONE INCH TO GOLF BALL SIZE HAIL NEAR ELGIN.
555 PM JACKSON 1 AND 1/2 INCH HAIL IN ALTUS.
600 PM JACKSON HAIL DRIFTING 3 TO 11 INCES DEEP, MAINLY
HALF DOLLAR TO 1 AND 1/2 INCHES IN ALTUS.
600 PM COMANCHE 1-2 FEET OF WATER ACROSS HE BAILEY TURNPIKE
IN PLACES N OF LAWTON. ALSO... HAIL UP TO
GOLF BALL SIZE ACCUMULATING ON ROADWAYS.
614 PM COMANCHE GOLF BALL SIZE HAIL IN SE LAWTON.Local storm report, Apr 16, 6:40 PM CDT, 1 hour 17 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
637 PM CDT THU APR 16 1992
TIME(CDT) COUNTY REPORT
623 PM COMANCHE QUARTER SIZE HAIL IN W LAWTON.
626 PM [ COMANCHE 2 FEET OF WATER COVERING STREETS IN
DOWNTOWN LAWTON.
636 PM COMANCHE QUARTER SIZE HAIL IN LAWTON.The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 7:29 PM CDT | Severe Thunderstorm Warning | OUN | Jackson | 46 min |
| Apr 16, 7:36 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, McClain | 54 min |
| Apr 16, 8:13 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland | 32 min |
| Apr 16, 8:32 PM CDT | Severe Thunderstorm Warning | OUN | McClain | 28 min |
| Apr 16, 8:45 PM CDT | Severe Thunderstorm Warning | OUN | Cleveland | 30 min |
Nearby
Flash Flood Warnings in Oklahoma, 1992Every flash flood warning in 1992
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; radar from the NEXRAD Level II archive.