Alert archive / Oklahoma / Flash Flood Warnings in 2002

Flash Flood Warning 30, NWS Tulsa, OK

May 8, 2002Osage County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 8, 2002, 11:15 PM CDT for Osage County, Oklahoma. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 8, 2002, 11:15 PM CDT (04:15 UTC)
Expired: May 9, 2002, 3:00 AM CDT
In force: 4 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 04:18 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, 4.3 hours before the alert went out and 181 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: 3758 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 901 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 232 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 5.8
Supercell composite: 21.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 090415
FFWTUL
OKC113-090800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1114 PM CDT WED MAY 8 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  OSAGE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 300 AM CDT

* AT 1114 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 7 MILES NORTHEAST OF OKESA TO 9        
  MILES SOUTHWEST OF FAIRFAX...MOVING SLOWLY SOUTHEAST. RADAR        
  INDICATES THAT 2 TO 3 INCHES OF RAIN HAS ALREADY FALLEN OVER THE   
  WARNED AREA. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 300 AM 
  CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE PAWHUSKA...SHIDLER...AVANT...WYNONA...FAIRFAX...
  BARNSDALL...BURBANK...OKESA...PEARSONIA...BIGHEART...FORAKER AND
  HULAH.

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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

$$

MANNING

LAT...LON 3694 9603 3687 9659 3663 9708 3641 9658
          3649 9602

1 follow-up statement

000 
WGUS74 KTSA 090554
FFSTUL
OKC113-090800-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1252 AM CDT THU MAY 9 2002

...FLASH FLOOD WARNING CONTINUES FOR OSAGE COUNTY UNTIL 300 AM CDT...

AT 1252 AM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH VERY
HEAVY RAIN 7 MILES SOUTHWEST OF SKIATOOK...MOVING EAST AT 25 MPH.

RADAR INDICATES THAT 2 TO 3 INCHES OF RAIN HAS ALREADY FALLEN OVER 
THE WARNED AREA. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 300 
AM CDT...ESPECIALLY ACROSS SOUTHEASTERN OSAGE COUNTY.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
INCLUDE HOMINY...AVANT...WOLCO AND SKIATOOK.

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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3645 9657 3621 9622 3619 9601 3656 9602

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 9:33 PM CDT	Severe Thunderstorm Warning	TSA	Osage	57 min
May 8, 10:04 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	56 min
May 8, 10:26 PM CDT	Severe Thunderstorm Warning	TSA	Osage	64 min
May 8, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	60 min
May 8, 11:23 PM CDT	Severe Thunderstorm Warning	TSA	Washington	52 min
May 8, 11:27 PM CDT	Severe Thunderstorm Warning	TSA	Osage	93 min
May 8, 11:40 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	65 min
May 8, 11:50 PM CDT	Severe Thunderstorm Warning	TSA	Rogers	55 min
May 9, 12:00 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	60 min
May 9, 12:14 AM CDT	Severe Thunderstorm Warning	TSA	Washington	46 min
May 9, 12:20 AM CDT	Severe Thunderstorm Warning	TSA	Craig	55 min
May 9, 12:29 AM CDT	Severe Thunderstorm Warning	TSA	Tulsa	61 min
May 9, 12:32 AM CDT	Severe Thunderstorm Warning	TSA	Osage	43 min
May 9, 12:44 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Creek	61 min
May 9, 1:06 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	54 min
May 9, 1:12 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	63 min
May 9, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	Okmulgee, Tulsa, Wagoner	45 min
May 9, 2:09 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee, Wagoner	51 min
May 9, 2:49 AM CDT	Tornado Warning	TSA	Muskogee	41 min
May 9, 3:03 AM CDT	Tornado Warning	TSA	Sequoyah	57 min
May 9, 3:05 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	40 min
May 9, 3:23 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	67 min

Nearby

Flash Flood Warnings in Oklahoma, 2002 Every flash flood warning in 2002

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.