Alert archive / Oklahoma / Flash Flood Warnings in 2001

Flash Flood Warning 22, NWS Tulsa, OK

June 14, 2001Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 14, 2001, 3:08 PM CDT for Nowata County, Washington County, Oklahoma. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 14, 2001, 3:08 PM CDT (20:08 UTC)
Expired: Jun 14, 2001, 6:00 PM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Nowata County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 20:09 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
Jun 14, 4:25 PM CDT	Flash Flood	Bartlesville, OK	Heavy thunderstorm rains caused water to flow over several roads.
Jun 14, 4:40 PM CDT	Flash Flood	Lenapah, OK	Heavy thunderstorm rains caused street flooding in Lenapah.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 8.1 hours before the alert went out and 154 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: 2808 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 262 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 13.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 142008
FFWTSA
OKC105-147-142300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
308 PM CDT THU JUN 14 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  NOWATA COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 600 PM CDT

* AT 308 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 11 MILES EAST OF LENAPAH TO 9 MILES
  SOUTHWEST OF RAMONA...MOVING SLOWLY NORTHEAST AT 10 MPH.

  RADAR INDICATES THAT 2 TO 3 INCHES OF RAIN HAS ALREADY FALLEN
  OVER THE WARNED AREA. ANOTHER 1 TO 2 INCHES OF RAINFALL WILL BE
  POSSIBLE THROUGH 600 PM CDT. THIS WILL BE SUFFICIENT TO CAUSE FLASH
  FLOODING.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE COPAN...DEWEY...OCHELATA...RAMONA...BARTLESVILLE...
  WATOVA...WANN...LENAPAH...DELAWARE AND NOWATA.

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.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND.

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.

$$t

DRM

LAT...LON 3700 9599 3642 9601 3668 9545 3701 9541

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 11:31 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	44 min
Jun 14, 11:36 AM CDT	Severe Thunderstorm Warning	TSA	Osage	39 min
Jun 14, 4:09 PM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee	3 hr
Jun 14, 4:15 PM CDT	Flash Flood Warning	TSA	Creek, Tulsa	4 hr
Jun 14, 6:30 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	45 min

Nearby

Flash Flood Warnings in Oklahoma, 2001 Every flash flood warning in 2001

Sources

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