Alert archive / Oklahoma / Flash Flood Warnings in 2012

Flash Flood Warning 20, NWS Tulsa, OK

March 20, 20128 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Mar 20, 2012, 1:59 PM CDT for 8 counties in Oklahoma. It was in force for 8 hr. 3 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: Mar 20, 2012, 1:59 PM CDT (18:59 UTC)
Expired: Mar 20, 2012, 10:00 PM CDT
In force: 8 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Cherokee County, OK, Craig County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Ottawa County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 33 km from the middle of the area, began a volume at 18:59 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
Mar 20, 3:00 PM CDT	HEAVY RAIN 7.16	Langley, OK	NEAR PENSACOLA DAM
Mar 20, 3:25 PM CDT	FLASH FLOOD	5 W Hulbert, OK	STATE HIGHWAY 80 IS CLOSED.
Mar 20, 3:43 PM CDT	FLASH FLOOD	Grove, OK	DELAWARE COUNTY DISTRICT 2 REPORTS 16 ROADS CLOSED DUE TO HIGH WATER BETWEEN JAY AND GROVE. REPORT VIA KOTV WEBSITE.

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 12:00Z, 7.0 hours before the alert went out and 171 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 660 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: -85 m²/s²
0-3 km storm-relative helicity: 439 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.

280 
WGUS54 KTSA 201859
FFWTSA
OKC021-035-041-091-097-101-115-145-210300-
/O.NEW.KTSA.FF.W.0020.120320T1859Z-120321T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
159 PM CDT TUE MAR 20 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  DELAWARE COUNTY IN NORTHEAST OKLAHOMA...
  EASTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA...
  EASTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA...
  MAYES COUNTY IN NORTHEAST OKLAHOMA...
  MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA...
  MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  OTTAWA COUNTY IN NORTHEAST OKLAHOMA...
  WESTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...

* UNTIL 1000 PM CDT

* AT 157 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  MODERATE RAIN ACROSS MUCH OF THE WARNED AREA. WIDESPREAD RAINFALL  
  AMOUNTS OF 3 TO 6 INCHES HAVE ALREADY OCCURRED...WITH SOME LOCAL   
  AMOUNTS OVER 7 INCHES REPORTED. AN ADDITIONAL 1 TO 2 INCHES OF     
  RAIN IS POSSIBLE. SEVERAL ROADS REMAIN UNDER WATER OR              
  CLOSED...ESPECIALLY ACROSS PARTS OF OTTAWA COUNTY.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  EUFAULA...JAY...MIAMI...MUSKOGEE...PRYOR...VINITA...WAGONER...
  ADAIR...AFTON...BERNICE...BERNICE STATE PARK...BIG CABIN...
  BLUEJACKET...BOYNTON...BRAGGS...CHECOTAH...CHEROKEE STATE PARK...
  CHLOETA...CHOUTEAU...CLEORA...COMMERCE...COUNCIL HILL...DISNEY...
  FAIRLAND...FORT GIBSON...GROVE...HANNA...HONEY CREEK STATE PARK...
  HULBERT AND KEEFETON.

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.

LOW WATER CROSSINGS IN HILLY TERRAIN ARE ESPECIALLY DANGEROUS IN
HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND
ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER
TO CARRY VEHICLES AWAY.

&&

LAT...LON 3649 9462 3621 9480 3618 9499 3596 9500
      3532 9536 3533 9540 3527 9552 3515 9598
      3535 9598 3538 9588 3544 9587 3556 9571
      3607 9543 3651 9543 3652 9533 3700 9504
      3700 9462

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 19, 7:10 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	6 hr
Mar 19, 7:16 PM CDT	Tornado Warning	TSA	Haskell, Muskogee	29 min
Mar 19, 7:37 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okmulgee, Pittsburg	23 min
Mar 19, 7:48 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	42 min
Mar 19, 7:56 PM CDT	Tornado Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	34 min
Mar 19, 8:03 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pittsburg, Pushmataha	43 min
Mar 19, 8:21 PM CDT	River Flood Warning	TSA	Choctaw	25 hr
Mar 19, 8:23 PM CDT	River Flood Warning	TSA	Pushmataha	56 hr
Mar 19, 8:29 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Muskogee, Pittsburg, Pushmataha	61 min
Mar 19, 8:32 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	28 min
Mar 19, 8:34 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah	6 hr
Mar 19, 8:51 PM CDT	Tornado Warning	TSA	Adair, Cherokee, Sequoyah	39 min
Mar 19, 9:04 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 2 more	41 min
Mar 19, 9:24 PM CDT	Special Weather Statement	TSA	Delaware	36 min
Mar 19, 9:33 PM CDT	Flash Flood Warning	TSA	Choctaw, Latimer, LeFlore, Pushmataha	6 hr
Mar 19, 9:41 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Haskell, LeFlore, Sequoyah	6 hr
Mar 19, 9:44 PM CDT	Severe Thunderstorm Warning	TSA	Adair, LeFlore, Sequoyah	61 min
Mar 19, 10:54 PM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 2 more	12 hr
Mar 20, 12:49 AM CDT	Areal Flood Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	10 hr
Mar 20, 12:59 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	10 hr
Mar 20, 2:05 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	12 hr
Mar 20, 2:09 AM CDT	Flash Flood Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, Muskogee, Pittsburg and 2 more	12 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Cherokee	24 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Cherokee	12 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	42 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Osage, Tulsa	24 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Tulsa	30 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Adair	24 hr
Mar 20, 3:06 AM CDT	River Flood Warning	TSA	Nowata	18 hr
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	Ottawa	5 days
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	LeFlore	24 hr
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	LeFlore	3 days
Mar 20, 4:50 AM CDT	River Flood Warning	TSA	Muskogee	22 hr
Mar 20, 6:16 AM CDT	Flash Flood Warning	TSA	Craig, Nowata, Rogers, Tulsa, Washington	8 hr
Mar 20, 8:38 AM CDT	River Flood Advisory	TSA	Cherokee, Delaware	22 hr
Mar 20, 8:51 AM CDT	River Flood Warning	TSA	Ottawa	18 hr
Mar 20, 10:54 AM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 2 more	3 hr
Mar 20, 10:57 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	3 hr
Mar 20, 11:02 AM CDT	Areal Flood Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	3 hr
Mar 20, 11:13 AM CDT	River Flood Warning	TSA	Sequoyah	16 hr
Mar 20, 1:51 PM CDT	Flash Flood Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, Muskogee, Pittsburg and 2 more	8 hr
Mar 20, 1:55 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	8 hr
Mar 20, 2:04 PM CDT	Areal Flood Warning	TSA	Craig, Creek, Muskogee, Nowata, Okmulgee, Osage and 4 more	32 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.