Alert archive / Oklahoma / Flash Flood Warnings in 2010

Flash Flood Warning 21, NWS Tulsa, OK

June 28, 2010Pittsburg County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 28, 2010, 4:36 AM CDT for Pittsburg County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2010, 4:36 AM CDT (09:36 UTC)
Expired: Jun 28, 2010, 7:30 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

County Pittsburg County, OK

The radar

The Norman radar (KTLX), 149 km from the middle of the area, began a volume at 09:38 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, 9.6 hours before the alert went out and 153 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: 1395 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1795 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 55 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.

255 
WGUS54 KTSA 280936
FFWTSA
OKC121-281230-
/O.NEW.KTSA.FF.W.0021.100628T0936Z-100628T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
436 AM CDT MON JUN 28 2010

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 730 AM CDT

* AT 432 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM 3 MILES
  SOUTH OF HARTSHORNE TO 4 MILES SOUTHEAST OF ASHLAND...MOVING       
  SOUTHEAST AT 5 MPH. RADAR INDICATES THAT 2 TO 3 INCHES OF RAIN     
  HAS ALREADY FALLEN OVER SOUTHERN PITTSBURG COUNTY...WITH AMOUNTS   
  UP TO 5 INCHES ESTIMATED BETWEEN DOW AND BLANCO. ANOTHER 1 TO 2    
  INCHES WILL BE POSSIBLE THROUGH 730 AM CDT.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...BLANCO AND KIOWA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
MUCH WATER IS ON THE ROADS. IT ONLY TAKES TWO FEET OF RUSHING WATER
TO CARRY AWAY MOST SPORT UTILITY VEHICLES AND PICKUPS. MOTORISTS
SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. TAKE A DIFFERENT
ROUTE TO REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES.

&&

LAT...LON 3459 9588 3460 9589 3468 9589 3468 9608
      3470 9610 3486 9609 3496 9551 3460 9552
      3459 9567

$$

1 follow-up statement

709 
WGUS74 KTSA 281220
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
720 AM CDT MON JUN 28 2010

OKC121-281230-
/O.EXP.KTSA.FF.W.0021.000000T0000Z-100628T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PITTSBURG OK-
720 AM CDT MON JUN 28 2010

...THE FLASH FLOOD WARNING FOR SOUTHERN PITTSBURG COUNTY EXPIRES AT
730 AM CDT...

THE HEAVY RAINFALL HAS ENDED ACROSS THE WARNED AREA...THEREFORE THE
FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE.

TO REPORT PREVIOUS FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
TULSA.

LAT...LON 3459 9588 3460 9589 3468 9589 3468 9608
      3470 9610 3486 9609 3496 9551 3460 9552
      3459 9567

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 7:19 PM CDT	Special Weather Statement	TSA	Rogers	26 min
Jun 27, 8:38 PM CDT	Special Weather Statement	TSA	Pittsburg	37 min
Jun 27, 10:19 PM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Sequoyah	3 hr
Jun 28, 1:57 AM CDT	Areal Flood Advisory	TSA	Latimer, LeFlore, Pittsburg	3 hr
Jun 28, 5:24 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Okfuskee and 3 more	3 hr

Nearby

Flash Flood Warnings in Oklahoma, 2010 Every flash flood warning in 2010

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.