Alert archive / Oklahoma / Flash Flood Warnings in 1986
Flash Flood Warning 39, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Oct 2, 1986, 8:50 PM CDT for Caddo County, Grady County, McClain County, Oklahoma. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Oct 2, 1986, 8:50 PM CDT (01:50 UTC)
- Expired
- Oct 3, 1986, 2:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties
Counties Caddo County, OK, Grady 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 00:00Z, 1.8 hours before the alert went out and 46 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
- 582 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
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, 4:53 PM CDT, 3 hours 57 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.
Special weather statement, Oct 2, 5:52 PM CDT, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
545 PM CDT THU OCT 2 1986
...HOW MUCH HAS IT RAINED THIS WEEK IN OKLAHOMA...
WOULD YOU BELIEVE NEARLY 25 INCHES SINCE SUNDAY MORNING...
BASED UPON DAILY RAINFALL REPORTS FROM AN EXTENSIVE NETWORK OF
COOPERATIVE WEATHER OBSERVERS...THE NATIONAL WEATHER SERVICE HAS
RECORDED TWO BANDS OF EXCESSIVE RAINFALL ACROSS OKLAHOMA THIS WEEK.
THESE REPORTS COVER A PERIOD FROM SUNRISE SUNDAY MORNING THROUGH SUNRISE
THIS THURSDAY MORNING.
THE FIRST BAND OF RAINS IN EXCESS OF 12 INCHES WAS ABOUT 15 MILES WIDE
AND EXTENDED FROM NORTHERN CANADIAN COUNTY SOUTH OF OKARCHE NORTHEAST
ACROSS GUTHRIE TO THE WEST SIDE OF THE KEYSTONE RESERVOIR.
A SECOND BAND OF RAINS IN EXCESS OF ONE FOOT WAS ABOUT 20 MILES WIDE
AND EXTENDED FROM NORTHWESTERN NOBLE COUNTY INTO CENTRAL KAY COUNTY.
THE CITIES OF TONKAWA..BLACKWELL AND NEWKIRK LAY IN THE MIDST OF THIS
SECOND BAND.
AS IF THIS RAIN WERE NOT ENOUGH TO SET RECORDS AND CAUSE WIDESPREAD
FLOODS...TODAY BROUGHT ADDITIONAL RAINS IN EXCESS OF 5 INCHES ACROSS THE
SAME TWO AREAS. BASED UPON RADAR ESTIMATES FROM OKLAHOMA CITY...RAINS OF
5 TO 8 INCHES FELL IN AN AREA 15 MILES WIDE FROM NEAR EL RENO TO BETWEEN
CRESENT AND GUTHRIE TO JUST WEST OF LAKE CARL BLACKWELL. A SECOND AREA
OF 5 INCH RAINS IS NOW ON THE GROUND IN A BAND ACROSS CENTRAL KAY COUNTY
FROM BLACKWELL NORTHEAST TO THE KANSAS BORDER.
THUS..UP TO 5PM THIS AFTERNOON..THE WEST CENTRAL PORTION OF LOGAN COUNTY
BETWEEN CASHION..GUTHRIE..AND CRESENT AND THE NORTH CENTRAL PORTION OF
KAY COUNTY FROM BLACKWELL TO NEWKIRK...HAVE BOTH RECORDED RAINFALLS THAT
APPROACH 25 INCHES IN TOTAL ACCUMULATIONS.
WITH NEARLY A YEARS WORTH OF RAIN ON THE GROUND THIS WEEK AND MORE TO
COME TONIGHT...RESIDENTS OF NORTH CENTRAL OKLAHOMA SHOULD PREPARE FOR
HISTORIC FLOODS TONIGHT.Special weather statement, Oct 2, 5:57 PM CDT, 2 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 550 PM CDT THU OCT 2 1986 ...A TORNADO WATCH IS IN EFFECT FOR WICHITA AND THE COUNTIES TO THE SOUTHWEST AND WEST UNTIL 11 PM... ...A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR MUCH OF THE AREA TONIGHT... AT 545 PM CDT THE WICHITA FALLS RADAR SHOWED NUMEROUS SHOWERS AND VERY STRONG THUNDERSTORMS CONTINUING 40 MILES EITHER SIDE OF A LINE FROM TULSA TO SOUTH OF LUBBOCK. IN THIS PORTION OF NORTH TEXAS...ONLY LIGHT RAIN WAS INDICATED OVER PORTIONS OF EXTREME NORTHWESTERN HARDEMAN COUNTY. HOWEVER A VERY STRONG THUNDERSTORM WAS LOCATED JUST EAST OF CHILDRESS. THIS STORM COULD POSSIBLY MOVE ACROSS EXTREME NORTHWESTERN HARDEMAN C8OUNTY DURING THE NEXT HALF HOUR. MOVMENT OF ALL PRECIPITATION CONTINUED TO THE NORTHEAST AT 30 MPH.
Special weather statement, Oct 2, 6:49 PM CDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 650 PM CDT THU OCT 2 1986 ...A TORNADO WATCH IS IN EFFECT FOR WICHITA AND THE COUNTIES TO THE SOUTHWEST AND WEST UNTIL 11 PM... ...A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR MUCH OF THE AREA TONIGHT... AT 645 PM CDT THE WICHITA FALLS RADAR SHOWED NUMEROUS SHOWERS AND VERY STRONG THUNDERSTORMS BLANKETING MUCH OF WESTERN OKLAHOMA...THE SOUTH EASTERN AND EASTERN TEXAS PANHANDLE ASa WELL AS MUCH OF TEXAS SOUTH PLAINS. MOVEMENT...NORTHEAST AT 30 MPH.
Local storm report, Oct 2, 7:51 PM CDT, 59 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
750 PM CDT THU OCT 2 1986
TIME(CDT) COUNTY REPORT
1010-1020 OKLAHOMA TORNADO OCCURRED IN THE VILLAGE AND NORTHERN
OKLAHOMA CITY
1020 OKLAHOMA 60 TO 65 MPH WINDS IN EDMOND
1114 LOGAN TORNADO TOUCHED DOWN 9 MILES WEST OF GUTHRIE
1629 LOGAN TORNADO 6 MILES WEST OF GUTHRIE
1800 CLEVELAND NICKEL-SIZED HAIL AN:D FUNNEL CLOUD OVER
SOUTHEAST NORMAN
1828 POTTAWATOMIE FUNNEL CLOUD NEAR MCLOUD
1846 LINCOLN FUNNEL 2 MILES WEST OF MEEKERSpecial weather statement, Oct 2, 8:01 PM CDT, 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 800 PM CDT THU OCT 2 1986 ...A TORNADO WATCH IS IN EFFECT FOR WICHITA AND THE COUNTIES TO THE SOUTHWEST AND WEST UNTIL 11 PM... ...A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR MUCH OF THE AREA TONIGHT... AT 755 NO PRECIPTATION WAS OCCURRING IN THIS PORTION OF NORTH TEXAS. HOWEVER...THE WICHITA FALLS RADAR WAS SHOWING NUMEROUS SHOWERS AND SCATTERED STRONG THUNDERSTORMS OCCURRING IN A 50 MILE WIDE AREA FROM TULSA OKLAHOMA TO WELLINGTON IN THE SOUTHEASTERN TEXAS PANHANDLE AND ON SOUTHWEST TO MIDLAND. MOVEMENT TO THE NORTHEAST AT 30 MPH.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 2, 7:03 PM CDT | Flash Flood Warning | OUN | Logan, Oklahoma | 2 hr |
| Oct 2, 8:09 PM CDT | Flash Flood Warning | OUN | Payne | 81 min |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Logan, Noble, Payne | 5 hr |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Canadian, Cleveland, Kingfisher, Oklahoma | 5 hr |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Greer, Harmon, Jackson, Kiowa | 5 hr |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Beckham, Custer, Washita | 5 hr |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Blaine, Dewey, Garfield, Major | 5 hr |
| Oct 2, 8:50 PM CDT | Flash Flood Warning | OUN | Kay | 5 hr |
| Oct 3, 2:15 AM CDT | Flash Flood Warning | OUN | Blaine, Garfield, Kingfisher, Major | 4 hr |
| Oct 3, 2:15 AM CDT | Flash Flood Warning | OUN | Caddo, Canadian, Comanche, Grady, Kiowa | 4 hr |
| Oct 3, 2:15 AM CDT | Flash Flood Warning | OUN | Grant, Kay, Noble | 4 hr |
| Oct 3, 2:15 AM CDT | Flash Flood Warning | OUN | Cotton, Tillman | 4 hr |
| Oct 3, 2:15 AM CDT | Flash Flood Warning | OUN | Logan | 4 hr |
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.