Alert archive / Oklahoma / Flash Flood Warnings in 2007

Flash Flood Warning 1, NWS Tulsa, OK

October 3, 2007LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Oct 3, 2007, 4:07 AM CDT for LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 3, 2007, 4:07 AM CDT (09:07 UTC)
Expired: Oct 3, 2007, 7:00 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Crawford County, AR, Sebastian County, AR, LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 11 km from the middle of the area, began a volume at 09:09 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.

What was reported inside it

Time	Report	Where	Remark
Oct 3, 4:45 AM CDT	FLASH FLOOD	Fort Smith, AR	WATER OVER ROADS...STALLED CAR.
Oct 3, 4:45 AM CDT	FLASH FLOOD	Van Buren, AR	CAR STALLED...SOME ROAD FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.1 hours before the alert went out and 273 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: 1431 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1527 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 030908
FFWTSA
ARC033-131-OKC079-135-031200-
/O.NEW.KTSA.FF.W.0001.071003T0907Z-071003T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
407 AM CDT WED OCT 3 2007

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA
  SOUTHWESTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
  NORTHEASTERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  NORTHWESTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 700 AM CDT

* AT 402 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAIN 5 MILES SOUTHWEST OF 
ROLAND...MOVING   EAST AT 10 MPH. RADAR INDICATES THAT 3 TO 5 INCHES 
INCHES OF RAIN HAS ALREADY FALLEN. ANOTHER ONE TO TWO NCHES WILL BE 
POSSIBLE THROUGH 600 AM CDT.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...MOFFETT...ARKOMA...FORT SMITH...VAN BUREN AND BARLING.

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.


LAT...LON 3544 9426 3525 9431 3530 9460 3547 9458
TIME...MOT...LOC 0907Z 286DEG 10KT 3539 9457

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 2, 7:55 PM CDT	Special Weather Statement	TSA	Adair, Cherokee, Creek, Delaware, McIntosh, Mayes and 5 more	65 min
Oct 2, 8:56 PM CDT	Special Weather Statement	TSA	Adair, Cherokee, Muskogee	64 min
Oct 2, 8:57 PM CDT	Flash Flood Watch	TSA	Adair, Cherokee, Delaware, Muskogee, Wagoner	7 hr
Oct 2, 9:51 PM CDT	Special Weather Statement	TSA	Adair, Muskogee, Sequoyah	54 min
Oct 2, 10:32 PM CDT	Special Weather Statement	TSA	Sequoyah	43 min
Oct 2, 11:09 PM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	66 min
Oct 3, 4:51 AM CDT	Flash Flood Warning	TSA	Franklin, Sebastian	114 min

Nearby

Flash Flood Warnings in Oklahoma, 2007 Flash Flood Warnings in Arkansas, 2007 Every flash flood warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.