Alert archive / Oklahoma / Flash Flood Warnings in 2012

Flash Flood Warning 27, NWS Tulsa, OK

May 1, 20124 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 1, 2012, 1:53 AM CDT for 4 counties in Oklahoma. It was in force for 5 hr. 1 report 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: May 1, 2012, 1:53 AM CDT (06:53 UTC)
Expired: May 1, 2012, 7:00 AM CDT
In force: 5 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Craig County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK

The radar

The Tulsa radar (KINX), 70 km from the middle of the area, began a volume at 06:53 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
May 1, 2:52 AM CDT	FLASH FLOOD	9 W Hollow, OK	WATER COVERING HIGHWAY 10 WHERE BRUSH CREEK CROSSES UNDER THE HIGHWAY ABOUT 1 MILE EAST OF THE NOWATA COUNTY LINE. HIGHWAY HAS BEEN CLOSED.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.9 hours before the alert went out and 124 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: 202 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 142 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.

371 
WGUS54 KTSA 010653
FFWTSA
OKC035-105-115-131-011200-
/O.NEW.KTSA.FF.W.0027.120501T0653Z-120501T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
153 AM CDT TUE MAY 1 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAIG COUNTY IN NORTHEAST OKLAHOMA...
  NORTHEASTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA...
  NOWATA COUNTY IN NORTHEAST OKLAHOMA...
  WESTERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 700 AM CDT

* AT 149 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. TWO TO FOUR 
INCHES OF RAINFALL HAS ALREADY OCCURRED...MAINLY OVER NORTHERN CRAIG 
COUNTY AND NORTHWEST OTTAWA COUNTY...WITH AN ADDITIONAL ONE TO TWO 
INCHES POSSIBLE. MUCH OF THE RUNOFF WILL MOVE INTO BIG CABIN CREEK 
AND LITTLE CABIN CREEK...AND DRAIN SOUTH PAST VINITA. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  NOWATA...VINITA...BIG CABIN...BLUEJACKET...CHELSEA...DELAWARE...
  KETCHUM...LENAPAH...NEW ALLUWE...SOUTH COFFEYVILLE...WATOVA...WELCH
  AND WHITE OAK.

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. 
REMEMBER...MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN 
WATER BEGINS RISING.

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

&&

LAT...LON 3667 9497 3667 9500 3651 9500 3652 9566
      3700 9574 3700 9491

$$

2 follow-up statements

936 
WGUS74 KTSA 010816
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
316 AM CDT TUE MAY 1 2012

OKC035-105-115-131-011200-
/O.CON.KTSA.FF.W.0027.000000T0000Z-120501T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAIG OK-NOWATA OK-OTTAWA OK-ROGERS OK-
316 AM CDT TUE MAY 1 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN ROGERS...
WESTERN OTTAWA...NOWATA AND CRAIG COUNTIES UNTIL 700 AM CDT...

AT 309 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE HEAVY RAINFALL HAD ENDED ACROSS THE WARNED AREA. ALTHOUGH LITTLE 
ADDITIONAL RAINFALL IS EXPECTED...RADAR ESTIMATES 2 TO 5 INCHES OF 
RAIN HAS ALREADY FALLEN OVERNIGHT. THIS IS IN ADDITION TO THE 4 TO 6 
INCHES OF RAIN THAT FELL EARLIER ON MONDAY.  

WIDESPREAD FLOODING IS OCCURRING. HIGHWAY 10 HAS BEEN CLOSED NEAR 
THE NOWATA COUNTY LINE. MANY COUNTY ROADS ARE FLOODED OVER THE 
NORTHERN PART OF CRAIG COUNTY. FLOODING HAS BEEN REPORTED ALONG 
SEVERAL CREEKS AND STREAMS IN THE NORTHERN PORTION OF CRAIG 
COUNTY...WITH WATER RESCUES OCCURRING. 

THIS IS A VERY DANGEROUS SITUATION.  

RUNOFF FROM THIS EXCESSIVE RAINFALL HAS CAUSED FLASH FLOODING.  
LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...NOWATA... 
VINITA...AFTON...BIG CABIN...BLUEJACKET...CHELSEA... 
DELAWARE...KETCHUM...LENAPAH...NEW ALLUWE...SOUTH COFFEYVILLE... 
WATOVA...WELCH AND WHITE OAK.

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 FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO 
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

&&

LAT...LON 3667 9497 3667 9500 3651 9500 3652 9566
      3700 9574 3700 9491

$$

242 
WGUS74 KTSA 011056
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
556 AM CDT TUE MAY 1 2012

OKC131-011102-
/O.CAN.KTSA.FF.W.0027.000000T0000Z-120501T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROGERS OK-
556 AM CDT TUE MAY 1 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHEASTERN ROGERS
COUNTY IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3700 9491 3667 9497 3667 9500 3651 9501
      3652 9533 3660 9533 3660 9567 3700 9574

$$

OKC035-105-115-011200-
/O.CON.KTSA.FF.W.0027.000000T0000Z-120501T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAIG OK-NOWATA OK-OTTAWA OK-
556 AM CDT TUE MAY 1 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN OTTAWA...NOWATA
AND CRAIG COUNTIES UNTIL 700 AM CDT...

AT 547 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RUNOFF FROM THE HEAVY RAINS HAVE LEFT MANY COUNTY ROADS IMPASSABLE 
OVER NORTHERN PORTIONS OF CRAIG...NOWATA...AND FAR NORTHWEST OTTAWA 
COUNTIES. SINCE EARLY MONDAY...BETWEEN 5 AND 10 INCHES OF RAIN HAS 
FALLEN OVER PORTIONS OF NORTHERN CRAIG COUNTY AND ADJACENT PORTIONS 
OF FAR SOUTHERN KANSAS. 

HIGHWAY 10 WEST OF HOLLOW...NEAR THE NOWATA COUNTY LINE...IS UNDER 
WATER AND CLOSED. 

LITTLE CABIN CREEK AND BIG CABIN CREEK HAVE RISEN RAPIDLY DURING THE 
NIGHT. BIG CABIN CREEK SOUTH OF VINITA HAS RISEN 8 FEET OVERNIGHT. 

BIG CREEK NEAR CHILDERS...IN EASTERN NOWATA COUNTY...HAS RISEN 10 
FEET OVER NIGHT. BIG CREEK DRAINS AREAS IN NORTHWEST CRAIG 
COUNTY...WHERE HIGHWAY 10 WAS FLOODED. 

SIGNIFICANT FLOODING WAS REPORTED AROUND WELCH DURING THE NIGHT. 

THIS FLASH FLOOD WARNING WILL LIKELY BE EXTENDED WITH AN AREAL FLOOD 
WARNING. 

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.

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

&&

LAT...LON 3700 9491 3667 9497 3667 9500 3651 9501
      3652 9533 3660 9533 3660 9567 3700 9574

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:03 PM CDT	Special Weather Statement	TSA	Nowata	27 min
Apr 30, 7:08 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	52 min
Apr 30, 7:18 PM CDT	Special Weather Statement	TSA	Muskogee	42 min
Apr 30, 7:54 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	66 min
Apr 30, 8:02 PM CDT	Tornado Warning	TSA	Nowata	43 min
Apr 30, 8:21 PM CDT	Tornado Warning	TSA	Nowata	39 min
Apr 30, 8:37 PM CDT	Tornado Warning	TSA	Nowata	23 min
Apr 30, 8:53 PM CDT	Tornado Warning	TSA	Craig, Nowata	37 min
Apr 30, 8:58 PM CDT	Flash Flood Warning	TSA	Craig, Nowata	3 hr
Apr 30, 9:01 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	44 min
Apr 30, 9:08 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	67 min
Apr 30, 9:29 PM CDT	Severe Thunderstorm Warning	TSA	Craig	15 min
Apr 30, 9:43 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	62 min
Apr 30, 9:58 PM CDT	Tornado Warning	TSA	Craig	32 min
Apr 30, 10:28 PM CDT	Severe Thunderstorm Warning	TSA	Craig	62 min
Apr 30, 10:34 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	71 min
Apr 30, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Craig	60 min
Apr 30, 11:03 PM CDT	Tornado Warning	TSA	Osage, Pawnee	42 min
Apr 30, 11:11 PM CDT	Flash Flood Warning	TSA	Osage, Pawnee	4 hr
Apr 30, 11:23 PM CDT	Tornado Warning	TSA	Osage, Pawnee	37 min
Apr 30, 11:42 PM CDT	Special Weather Statement	TSA	Creek	48 min
Apr 30, 11:42 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	63 min
Apr 30, 11:51 PM CDT	Flash Flood Warning	TSA	Craig, Nowata	3 hr
Apr 30, 11:58 PM CDT	Severe Thunderstorm Warning	TSA	Craig	32 min
May 1, 12:19 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Tulsa, Washington	56 min
May 1, 12:26 AM CDT	Special Weather Statement	TSA	Tulsa	49 min
May 1, 12:47 AM CDT	Tornado Warning	TSA	Nowata	9 min
May 1, 12:49 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Washington	56 min
May 1, 12:56 AM CDT	Special Weather Statement	TSA	Okfuskee	49 min
May 1, 12:59 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers	76 min
May 1, 1:17 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner	58 min
May 1, 1:38 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	37 min
May 1, 1:52 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes	53 min
May 1, 2:10 AM CDT	Special Weather Statement	TSA	Cherokee, McIntosh, Muskogee	50 min
May 1, 2:21 AM CDT	Special Weather Statement	TSA	Pittsburg	39 min
May 1, 2:30 AM CDT	Special Weather Statement	TSA	Creek, Tulsa, Wagoner	45 min
May 1, 2:33 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	27 min
May 1, 2:56 AM CDT	Special Weather Statement	TSA	Adair	49 min
May 1, 3:02 AM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	43 min
May 1, 3:28 AM CDT	Severe Thunderstorm Warning	TSA	Adair	47 min
May 1, 3:30 AM CDT	Special Weather Statement	TSA	Latimer, LeFlore	45 min
May 1, 6:35 AM CDT	Areal Flood Warning	TSA	Craig, Nowata, Ottawa	10 hr
May 1, 8:33 AM CDT	River Flood Warning	TSA	Ottawa	25 hr
May 1, 4:28 PM CDT	Areal Flood Warning	TSA	Craig, Nowata, Osage, Ottawa, Washington	24 hr

Nearby

Flash Flood Warnings in Oklahoma, 2012 Every flash flood warning in 2012

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.