Alert archive / Oklahoma / Flash Flood Warnings in 1997

Flash Flood Warning 21, NWS Tulsa, OK

July 10, 1997Muskogee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jul 10, 1997, 12:02 PM CDT for Muskogee County, Oklahoma. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 1997, 12:02 PM CDT (17:02 UTC)
Expired: Jul 10, 1997, 2:00 PM CDT
In force: 118 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Muskogee County, OK

The radar

The Tulsa radar (KINX), 64 km from the middle of the area, began a volume at 17:06 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 12:00Z, 5.0 hours before the alert went out and 188 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: 1951 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUL 101704
FFWTUL
OKC101-101900-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1202 PM CDT THU JUL 10 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  200 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OKLAHOMA
 
   ...NORTHEASTERN MUSKOGEE COUNTY
 
DURING THE MORNING HEAVY RAINS HAVE FALLEN OVER PORTIONS OF
MUSKOGEE COUNTY...ESPECIALLY FROM THE CITY OF MUSKOGEE TO
WEBBERS FALLS. IN THESE AREAS A TOTAL OF 3 TO 4 INCHES HAS
OCCURRED AND RAIN CONTINUES TO FALL IN MUCH OF THIS AREA.
 
WHILE THE RAIN MAY TEND TO DIMINISH BY 1PM THE RAIN THAT HAS ALREADY
FALLEN WILL CONTINUE TO RUNOFF WITH THE ADDITIONAL RAIN EARLY
THIS AFTERNOON AGGRAVATING THE SITUATION.  IN ADDITION NEW
THUNDERSTORM ACTIVITY MAY REDEVELOP IN THE AREA BY MID AFTERNOON AND
THIS COULD MAKE THE SITUATION WORST.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS LIKELY OR HAS BEEN
REPORTED.  STAY ALERT AND WATCH FOR RAPIDLY RISING WATER.
REMEMBER...IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO THE
NEAREST STREAM...CREEK OR RIVER WHICH CAN BECOME A KILLER DURING
PERIODS OF HEAVY RAIN.
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT DRIVE YOUR
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY.  THE WATER
MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY.  IF YOUR
VEHICLE GETS CAUGHT IN RISING WATER...ABANDONED IT QUICKLY.  THEN
MOVE TO HIGHER GROUND.
 P

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 2:26 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	49 min

Nearby

Flash Flood Warnings in Oklahoma, 1997 Every flash flood warning in 1997

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.