Alert archive / Oklahoma / Flash Flood Warnings in 2010

Flash Flood Warning 6, NWS Tulsa, OK

May 19, 2010Rogers County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 19, 2010, 8:50 PM CDT for Rogers County, Wagoner County, Oklahoma. It was in force for 6 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: May 19, 2010, 8:50 PM CDT (01:50 UTC)
Expired: May 20, 2010, 2:45 AM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Rogers County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 17 km from the middle of the area, began a volume at 01:51 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 19, 10:42 PM CDT	FLASH FLOOD	4 Ne Owasso, OK	106TH STREET NORTH EAST OF 161ST EAST AVENUE UNDER 1 FOOT OF WATER
May 19, 11:20 PM CDT	FLASH FLOOD	6 Ne Broken Arrow, OK	TWO TO THREE FEET OF WATER OVER ROADS BETWEEN 31ST AND 51ST STREETS ALONG 257TH EAST AND NEAR 41ST AND 273RD STREETS.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 112 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 1.8 hours before the alert went out and 172 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: 498 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 980 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 224 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

539 
WGUS54 KTSA 200150
FFWTSA
OKC131-145-200745-
/O.NEW.KTSA.FF.W.0006.100520T0150Z-100520T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
850 PM CDT WED MAY 19 2010

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  WESTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 245 AM CDT

* AT 846 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAIN 8 MILES SOUTHWEST OF CATOOSA...MOVING
  NORTHEAST AT 30 MPH. ADDITIONAL LINE OF THUNDERSTORMS WITH HEAVY   
  RAIN WERE LOCATED FROM HOMINY TO SAPULPA MOVING EAST AT 40 MPH.    
  RADAR INDICATES THAT AROUND 1 INCHES OF RAIN HAS ALREADY FALLEN    
  THIS EVENING. ANOTHER 1 TO 3 INCHES WILL BE POSSIBLE THROUGH 
  245 AM CDT.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN          
  INCLUDE...BROKEN ARROW...COWETA...ONETA...PORTER...VERDIGRIS...
  INOLA...CLAREMORE...TIAWAH AND FOYIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3581 9547 3578 9559 3580 9564 3587 9565
      3586 9582 3591 9582 3591 9576 3617 9576
      3617 9582 3640 9582 3640 9580 3643 9579
      3649 9543

$$

1 follow-up statement

031 
WGUS74 KTSA 200246
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
946 PM CDT WED MAY 19 2010

OKC131-145-200745-
/O.CON.KTSA.FF.W.0006.000000T0000Z-100520T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WAGONER OK-ROGERS OK-
946 PM CDT WED MAY 19 2010

... DANGEROUS FLASH FLOODING LIKELY IN SOUTHERN ROGERS AND 
WESTERN WAGONER COUNTIES...

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
SOUTHERN ROGERS AND WESTERN WAGONER COUNTIES...

THROUGH 930 PM CDT...ONE TO THREE INCHES OF RAIN HAS FALLEN ACROSS 
SOUTHERN ROGERS COUNTY AND WESTERN WAGONER COUNTY.  AN ADDITION 
INCH OF RAIN IS LIKELY THROUGH 1030 PM.

THIS EXPECTED TO LEAD TO DANGEROUS FLASH FLOODING IN AND AROUND 
CLAREMORE...INOLA...CATOOSA...WAGONER AND COWETA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3581 9547 3578 9559 3580 9564 3587 9565
      3586 9582 3591 9582 3591 9576 3617 9576
      3617 9582 3640 9582 3640 9580 3643 9579
      3649 9543

$$

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this flash flood warning went out at May 19, 7:00 PM CDT, 1 hour 50 minutes earlier.

Area forecast discussion, May 19, 7:00 PM CDT, 1 hour 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
700 PM CDT WED MAY 19 2010

...MESOSCALE UPDATE...

.DISCUSSION...
MULTIPLE CELLULAR UPDRAFTS WITHIN BROAD ZONE OF FAVORABLE DEEP
LAYER SHEAR HAVE QUICKLY ATTAINED ROTATION...YET STORM MOTIONS
HAVE LARGELY REMAINED CONSISTENT WITH THE MEAN FLOW LIMITING
STRONGER HELICITY INGESTION AND RESULTANT INCREASE IN LOW LEVEL
ROTATIONAL VALUES. THE EXCEPTION HAS BEEN THE TORNADO WARNED STORM
IN CREEK COUNTY AND OBVIOUS LONG TRACK SUPERCELLS WHICH HAVE TRACKED
ACROSS NORTH CENTRAL OKLAHOMA. THE WARM FRONTAL PROGRESSION HAS
LIFTED WELL INTO NORTHEAST OKLAHOMA WITH A MARKED GRADIENT NOTED
IN LFC HEIGHTS RUNNING FROM OSAGE COUNTY TO LE FLORE COUNTY.

CURRENT THINKING IS THAT ANY STORM SOUTH OF THIS LINE WILL BE MOST
LIKELY TO TAP NEARER SURFACE BASED INSTABILITY EVEN POST
SUNSET...HOWEVER CURRENT STORM MOTIONS MAY LIMIT THE RESIDENCE
TIME IN THIS MORE FAVORABLE ENVIRONMENT. SHOULD ANY OF THE PRESENT
MESOCYCLONES STRENGTHEN AND PROMOTE ANY SHIFT EASTWARD OR SLOWING
OF THE STORM MOTION THEN BOTH THE RESIDENCE TIME IN THE FAVORED
ZONE INCREASE ALONG WITH THE INGESTION OF NOTICEABLY HIGHER
HELICITY VALUES.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 PM THURSDAY FOR OKZ054-OKZ055-OKZ056-
     OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-OKZ063-OKZ064-
     OKZ065-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-OKZ071-OKZ072-
     OKZ073-OKZ074-OKZ075-OKZ076.

AR...FLASH FLOOD WATCH UNTIL 7 PM THURSDAY FOR ARZ001-ARZ002-ARZ010-
     ARZ011-ARZ019-ARZ020-ARZ029.

&&

SHORT TERM...07

Hazardous weather outlook, May 19, 8:38 PM CDT, 12 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
838 PM CDT WED MAY 19 2010

ARZ001-002-010-011-019-020-029-OKZ049-053>076-201000-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
838 PM CDT WED MAY 19 2010

...DANGEROUS SEVERE WEATHER ONGOING...

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TONIGHT.
TORNADO.
	RISK...SIGNIFICANT.
	AREA...MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

	AREA AT GREATEST RISK...CORRIDOR FROM TULSA TO FORT SMITH.

SEVERE THUNDERSTORM.
	RISK...CRITICAL.
	AREA...ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

FLASH FLOOD.
	RISK...SIGNIFICANT.
	AREA...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

	AREA AT GREATEST RISK...LOCATIONS ALONG AND NORTH OF
        INTERSTATE 40.

DISCUSSION...
TORNADIC THUNDERSTORMS ARE ONGOING ACROSS PORTIONS OF
EASTERN OKLAHOMA...PRIMARILY NEAR A WARM FRONT WHICH STRETCHES
FROM NEAR HOMINY TO NEAR FORT SMITH.  CONDITIONS REMAIN HIGHLY
FAVORABLE FOR ADDITIONAL TORNADOES ALONG AND SOUTH OF THIS
BOUNDARY...WHILE THE SEVERE WEATHER RISK INCLUDING LARGE HAIL
POTENTIAL INCLUDES ALL OF EASTERN OKLAHOMA AND NORTHWEST
ARKANSAS.

THE SLOW MOVING STORMS WHICH HAVE PASSED OVER MANY OF THE
SAME AREAS WILL RESULT IN AREAS OF FLASH FLOODING.  A FLASH
FLOOD WATCH REMAINS IN EFFECT FOR MUCH OF THE AREA THROUGH
THE OVERNIGHT HOURS...AND ADDITIONAL FLASH FLOOD WARNINGS
MAY BE REQUIRED.  BE ESPECIALLY CAUTIOUS AT NIGHT AS FLOODED
ROADWAYS WILL BE MORE DIFFICULT TO IDENTIFY.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK IS ONGOING...AND
WILL LIKELY CONTINUE INTO THE EARLY MORNING HOURS ON THURSDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
FRIDAY THROUGH TUESDAY...NO HAZARDS.

EXTENDED DISCUSSION...
STRONG TO SEVERE THUNDERSTORMS ARE LIKELY TO BE ONGOING DURING
THE EARLY MORNING HOURS ON THURSDAY...WITH THE STORM COMPLEX
SHIFTING EASTWARD WITH TIME.  ADDITIONAL THUNDERSTORMS MAY DEVELOP
THURSDAY AFTERNOON...AND THESE STORMS WOULD ALSO POSE A SEVERE
WEATHER RISK.  LOCALLY HEAVY RAINS WILL OCCUR WEDNESDAY NIGHT
INTO THURSDAY...AND SHOULD STORMS DEVELOP LATER THURSDAY...THEN
ADDITIONAL RAINS WOULD WORSEN ANY ONGOING FLOOD POTENTIAL.

A MORE STABLE WEATHER PATTERN IS FORECAST TO DEVELOP OVER
THE WEEKEND...AND PERSIST INTO EARLY NEXT WEEK.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Special weather statement, May 19, 6:13 PM CDT, 2 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
613 PM CDT WED MAY 19 2010

OKZ064-065-192345-
CREEK OK-OKFUSKEE OK-
613 PM CDT WED MAY 19 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 645 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHWESTERN CREEK

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN OKFUSKEE

AT 613 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 15 MILES SOUTHWEST
OF MILFAY...MOVING NORTHEAST AT 25 MPH..

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

A TORNADO WATCH IS IN EFFECT UNTIL 10 PM.

LAT...LON 3573 9644 3559 9662 3582 9663 3583 9662
TIME...MOT...LOC 2313Z 216DEG 22KT 3561 9672

Local storm report, May 19, 7:36 PM CDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
736 PM CDT WED MAY 19 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0734 PM     HAIL             6 W MARAMEC             36.24N 96.79W
05/19/2010  E1.00 INCH       PAWNEE             OK   PUBLIC

            HAIL AT THE MCDONALDS ON THE TURNPIKE...HIGHWAY 412

&&

SAA

Local storm report, May 19, 8:04 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
804 PM CDT WED MAY 19 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 PM     TORNADO          DEPEW                   35.80N 96.51W
05/19/2010                   CREEK              OK   EMERGENCY MNGR

            POSSIBLE TWO BRIEF TOUCHDOWNS NEAR DEPEW.

&&

JBM

Local storm report, May 19, 8:22 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
822 PM CDT WED MAY 19 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0816 PM     HAIL             OKTAHA                  35.58N 95.47W
05/19/2010  M1.25 INCH       MUSKOGEE           OK   EMERGENCY MNGR

&&

SFP

Local storm report, May 19, 8:47 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
847 PM CDT WED MAY 19 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND GST     MUSKOGEE                35.75N 95.37W
05/19/2010  E0 MPH           MUSKOGEE           OK   TRAINED SPOTTER

            70 MPH WIND REPORTED ON CHANDLER ROAD IN EASTERN MUSKOGEE

&&

MAT

Local storm report, May 19, 8:47 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT   ...CORRECTED WIND SPEED...
NATIONAL WEATHER SERVICE TULSA OK
847 PM CDT WED MAY 19 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND GST     MUSKOGEE                35.75N 95.37W
05/19/2010  E70 MPH          MUSKOGEE           OK   TRAINED SPOTTER

            70 MPH WIND REPORTED ON CHANDLER ROAD IN EASTERN MUSKOGEE

&&

MAT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 7:01 PM CDT	Tornado Warning	TSA	Creek, Pawnee	44 min
May 19, 7:03 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee, Pittsburg	57 min
May 19, 7:22 PM CDT	Tornado Warning	TSA	Creek, Okmulgee, Tulsa, Wagoner	53 min
May 19, 7:35 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	55 min
May 19, 7:41 PM CDT	Tornado Warning	TSA	Creek, Osage, Pawnee	49 min
May 19, 7:49 PM CDT	Flash Flood Warning	TSA	Creek	6 hr
May 19, 7:51 PM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	84 min
May 19, 7:58 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee, Tulsa	62 min
May 19, 8:01 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Muskogee, Sequoyah, Wagoner	59 min
May 19, 8:10 PM CDT	Tornado Warning	TSA	Creek	50 min
May 19, 8:13 PM CDT	Tornado Warning	TSA	Creek, Muskogee, Okmulgee, Tulsa, Wagoner	47 min
May 19, 8:14 PM CDT	Flash Flood Warning	TSA	Tulsa	6 hr
May 19, 8:24 PM CDT	Tornado Warning	TSA	Creek, Okfuskee	54 min
May 19, 8:30 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	30 min
May 19, 8:47 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Wagoner	58 min
May 19, 8:54 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Muskogee, Okmulgee, Osage, Rogers and 2 more	66 min
May 19, 8:57 PM CDT	Tornado Warning	TSA	Cherokee, Muskogee	18 min
May 19, 8:57 PM CDT	Tornado Warning	TSA	Rogers, Tulsa, Wagoner	48 min
May 19, 9:00 PM CDT	Severe Thunderstorm Warning	TSA	Creek, McIntosh, Okfuskee, Okmulgee, Pittsburg	60 min
May 19, 9:06 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	29 min
May 19, 9:07 PM CDT	Tornado Warning	TSA	McIntosh, Okfuskee, Okmulgee	23 min
May 19, 9:23 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	67 min
May 19, 9:28 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	62 min
May 19, 9:40 PM CDT	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Rogers, Wagoner	50 min
May 19, 9:47 PM CDT	Areal Flood Advisory	TSA	Cherokee, Delaware, Mayes, Muskogee, Rogers, Wagoner	88 min
May 19, 9:47 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Sequoyah and 1 more	58 min
May 19, 9:58 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	45 min
May 19, 10:01 PM CDT	Flash Flood Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Rogers, Wagoner	6 hr
May 19, 10:26 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	64 min
May 19, 10:37 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Sequoyah	53 min
May 19, 10:37 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	53 min
May 19, 10:49 PM CDT	Areal Flood Advisory	TSA	Adair	116 min
May 19, 10:53 PM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee	6 hr
May 19, 11:25 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	35 min
May 19, 11:38 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	67 min
May 19, 11:43 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Sequoyah	62 min
May 19, 11:45 PM CDT	Special Weather Statement	TSA	LeFlore	30 min
May 19, 11:46 PM CDT	Flash Flood Warning	TSA	Adair, Haskell, LeFlore, Sequoyah	6 hr
May 20, 12:20 AM CDT	Special Weather Statement	TSA	Pittsburg	25 min
May 20, 12:24 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	6 hr
May 20, 12:33 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Sequoyah	57 min
May 20, 12:40 AM CDT	Special Weather Statement	TSA	Latimer	35 min
May 20, 1:13 AM CDT	Special Weather Statement	TSA	LeFlore	32 min
May 20, 1:18 AM CDT	Special Weather Statement	TSA	Latimer	27 min
May 20, 1:27 AM CDT	Areal Flood Warning	TSA	Creek	4 hr
May 20, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	45 min
May 20, 2:01 AM CDT	Areal Flood Warning	TSA	Tulsa	4 hr
May 20, 2:16 AM CDT	Special Weather Statement	TSA	Pittsburg	44 min
May 20, 2:17 AM CDT	Special Weather Statement	TSA	LeFlore	43 min
May 20, 2:21 AM CDT	River Flood Warning	TSA	Ottawa	45 hr
May 20, 2:29 AM CDT	Areal Flood Warning	TSA	Rogers, Wagoner	4 hr
May 20, 3:17 AM CDT	River Flood Warning	TSA	Creek	30 hr
May 20, 3:51 AM CDT	Areal Flood Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Rogers, Wagoner	4 hr
May 20, 4:21 AM CDT	Special Weather Statement	TSA	Pittsburg	24 min
May 20, 5:00 AM CDT	Areal Flood Warning	TSA	McIntosh, Muskogee	4 hr
May 20, 5:38 AM CDT	Areal Flood Warning	TSA	Adair, Haskell, LeFlore, Sequoyah	4 hr
May 20, 5:40 AM CDT	Special Weather Statement	TSA	LeFlore	35 min
May 20, 6:26 AM CDT	Areal Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	4 hr
May 20, 7:39 AM CDT	Areal Flood Warning	TSA	Cherokee, Muskogee	4 hr
May 20, 8:19 AM CDT	River Flood Advisory	TSA	Cherokee	19 hr
May 20, 8:28 AM CDT	River Flood Warning	TSA	Ottawa	18 hr
May 20, 8:55 AM CDT	Areal Flood Warning	TSA	McIntosh, Muskogee	4 hr
May 20, 10:25 AM CDT	Areal Flood Warning	TSA	Latimer, LeFlore, Pittsburg, Pushmataha	6 hr
May 20, 11:08 AM CDT	Flash Flood Warning	TSA	Choctaw, Pushmataha	4 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.