Alert archive / Oklahoma / Flash Flood Warnings in 2008

Flash Flood Warning 68, NWS Tulsa, OK

May 7, 20085 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 7, 2008, 2:05 PM CDT for 5 counties in 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 7, 2008, 2:05 PM CDT (19:05 UTC)
Expired: May 7, 2008, 8:00 PM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Craig County, OK, Delaware County, OK, Mayes County, OK, Ottawa County, OK, Rogers County, OK

The radar

The Tulsa radar (KINX), 69 km from the middle of the area, began a volume at 19:08 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 7, 4:00 PM CDT	FLASH FLOOD	Ketchum, OK	SOME STREET FLOODING. ALSO RURAL ROADS NEAR KETCHUM WERE REPORTED UNDER WATER. 3.75 INCHES OF RAIN TODAY.
May 7, 4:15 PM CDT	FLASH FLOOD	3 S Cleora, OK	WATER OVER HIGHWAY 85 SOUTH OF CLEORA. SOME AREAS STILL FLOODED AT 6 PM.

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 115 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

Springfield, MO (KSGF), launched 12:00Z, 7.1 hours before the alert went out and 111 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: 1122 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 553 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 071909
FFWTSA
OKC035-041-097-115-131-080100-
/O.NEW.KTSA.FF.W.0068.080507T1905Z-080508T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
205 PM CDT WED MAY 7 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAIG COUNTY IN NORTHEAST OKLAHOMA
  DELAWARE COUNTY IN NORTHEAST OKLAHOMA
  MAYES COUNTY IN NORTHEAST OKLAHOMA
  OTTAWA COUNTY IN NORTHEAST OKLAHOMA
  EASTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 800 PM CDT

* AT 204 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM 12 MILES
  NORTHWEST OF WHITE OAK TO ROSE...MOVING NORTHEAST AT 25 MPH. RADAR 
  INDICATES THAT WIDESPREAD 1 TO 2 INCHES OF RAIN...WITH AROUND 3    
  INCHES OF RAINFALL IN NORTHERN DELAWARE COUNTY...HAS ALREADY       
  FALLEN. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 800 PM CDT.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...BIG CABIN...PENSACOLA...LEACH...SPAVINAW...LANGLEY...
  VINITA...DISNEY...CHLOETA...KETCHUM...CLEORA...BLUEJACKET...JAY...
  COLCORD...WELCH...AFTON...BERNICE...NARCISSA...GROVE...FAIRLAND...
  MIAMI...COMMERCE...WYANDOTTE...PICHER AND QUAPAW.

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.

EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND
STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING
AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 3700 9463 3698 9460 3641 9461 3629 9458
      3616 9498 3617 9510 3612 9511 3608 9552
      3662 9543 3700 9539 3702 9513
TIME...MOT...LOC 1905Z 239DEG 25KT 3675 9541 3622 9505

$$

1 follow-up statement

000 
WGUS74 KTSA 072026
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
324 PM CDT WED MAY 7 2008

OKC035-041-097-115-131-080100-
/O.CON.KTSA.FF.W.0068.000000T0000Z-080508T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROGERS OK-DELAWARE OK-CRAIG OK-OTTAWA OK-MAYES OK-
324 PM CDT WED MAY 7 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
MAYES...OTTAWA...CRAIG...DELAWARE AND EASTERN ROGERS COUNTIES...

AT 320 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM 7 MILES
NORTHWEST OF WHITE OAK TO SALINA TO 3 MILES NORTH OF COLCORD...MOVING
NORTHEAST AT 25 MPH. RADAR INDICATES THAT 1 TO 2 INCHES OF RAIN HAS 
ALREADY FALLEN ACROSS MUCH OF THE WARNED AREA...WITH 2 TO AROUND 3 
INCHES ACROSS NORTHERN DELAWARE AND NORTHERN MAYES COUNTIES. ANOTHER 
1 TO 2 INCHES WILL BE POSSIBLE THROUGH 800 PM CDT.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
INCLUDE WHITE OAK...BIG CABIN...PENSACOLA...SPAVINAW...VINITA...
LANGLEY...JAY...CHLOETA...DISNEY...KETCHUM...CLEORA...BLUEJACKET...
WELCH...AFTON...BERNICE...NARCISSA...FAIRLAND...GROVE...MIAMI...
COMMERCE...PICHER...WYANDOTTE AND QUAPAW.

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.

EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND
STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING
AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 3700 9463 3698 9460 3641 9461 3629 9458
      3616 9498 3617 9510 3612 9511 3608 9552
      3662 9543 3700 9539 3702 9513
TIME...MOT...LOC 2024Z 228DEG 23KT 3669 9534 3631 9516
          3633 9465

$$

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 7, 10:32 AM CDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 7, 10:32 AM CDT, 3 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1032 AM CDT WED MAY 7 2008

.DISCUSSION...
CONVECTIVE CLUSTER COVERS  MORE THAN TWO THIRDS CWA
AT THIS TIME. MARGINAL SEVERE HAIL THREAT CURRENTLY
IN DOWN-CYCLE. PLENTY MORE TO COME.  AFTERNOON TEMP
LOWERED NORTHWEST HALF CWA DUE TO EXPECTED OVERCAST
TO CONTINUE. CURRENT FLOOD WATCH ALONG & JUST SOUTH
OF OK - KANSAS BORDER MAY NEED TO BE EXPANDED SOUTH
LATER THIS AFTERNOON. SITUATION WILL BE RE-ACCESSED
AFTER THIS ROUND OF CONVECTION. LOCAL GFE GENERATED
SEVERE INDICES TARGET SOUTHEAST OK AND WEST CENTRAL
ARKANSAS..AS MOST VULNERABLE FOR SIGNIFICANT SEVERE
WEATHER LATER THIS AFTERNOON AND EVENING.        GW

&&

.PREV DISCUSSION... /ISSUED 350 AM CDT WED MAY 7 2008/

DISCUSSION...
UPPER LOW CURRENTLY CROSSING INTO FAR WEST TEXAS LOOKS TO BE
MAKING ITS TURN NORTHEASTWARD...AND THE LATEST DATA IS IN GOOD
AGREEMENT ON THE EVENTUAL TRACK ACROSS OKLAHOMA AND INTO SOUTHERN
MISSOURI BY SUNRISE THURSDAY. OVERNIGHT MCS ACTIVITY ACROSS
SOUTHERN KANSAS HAS PLACED AN ILL DEFINED OUTFLOW BOUNDARY INTO
NORTHEAST OKLAHOMA...WHILE THE SYNOPTIC SCALE FRONTAL BOUNDARY
REMAINS FURTHER NORTH ACROSS CENTRAL KANSAS. FURTHER
WEST...CONVECTION CONTINUES TO BLOSSOM WITHIN STRONGLY DIFFLUENT
FLOW AHEAD OF UPPER LOW. THIS REGION OF STRONG FORCING WILL
INTERACT WITH PLUME OF HIGH MOISTURE TO EXPAND PRECIP ACROSS
NORTHEAST OKLAHOMA TODAY. THE FAVORED REGION OF HIGHEST RAINFALL
AMOUNTS NORTH OF THE UPPER LOW TRACK MAY PLACE THE HEAVIER AMOUNTS
JUST NORTH OF THE FORECAST AREA...HOWEVER THE PRESENCE OF THE
MESOSCALE BOUNDARIES CASTS ENOUGH UNCERTAINTY TO WARRANT A FLASH
FLOOD WATCH FOR NORTHERN BORDER COUNTIES.

THE SEVERE POTENTIAL TODAY CONTINUES TO LOOK HIGHEST FOR SOUTHERN
PORTIONS OF THE FORECAST AREA. STEEPENING LAPSE RATES WILL SUPPORT
MORE INTENSE UPDRAFTS WITH STORMS DEVELOPING ALONG SURGING DRYLINE
THIS AFTERNOON FROM SOUTHERN OKLAHOMA THROUGH CENTRAL TEXAS. THE
LARGELY BACKED WIND PROFILES SUGGEST A LIMITED WINDOW EXISTS FOR
DISCRETE STORMS BEFORE CELLULAR INTERACTIONS YIELD BROKEN LINE
SEGMENTS. HOWEVER THE MAGNITUDE OF BOTH THE SHALLOW AND DEEP
LAYERED SHEAR VECTORS WILL SUPPORT EMBEDDED SUPERCELLULAR
POTENTIAL WITH ALL FORMS OF SEVERE WEATHER POSSIBLE.

THE FRONTAL BOUNDARY IN WAKE OF THE UPPER LOW WILL MAKE LIMITED
SOUTHWARD PROGRESS ON THURSDAY...WITH MODELS IN BETTER AGREEMENT
ON A FAST MOVING SHORTWAVE TROUGH PASSING THE AREA THURSDAY NIGHT.
SMALL SCALE MCS IS EXPECTED TO DEVELOP WITHIN THE UPSLOPE FLOW
ALONG THE FRONT RANGE AND TRACK INTO...OR JUST NORTH OF...THE FORECAST
AREA THURSDAY NIGHT THROUGH FRIDAY MORNING.

A BRIEF DRY PERIOD BEFORE A STRONGER WAVE DRAWS THE FRONTAL
BOUNDARY NORTH FRIDAY NIGHT...AND PUSHES IT BACK SOUTHWARD
BY SATURDAY NIGHT. THIS TIMEFRAME WILL BE THE NEXT SHOT AT SHOWERS
AND THUNDERSTORMS...AND CURRENT LOW LEVEL MOISTURE FORECASTS YIELD
IMPRESSIVE INSTABILITY AHEAD OF THIS FRONTAL SURGE. HIGH PRESSURE
AND ASSOCIATED DRY WEATHER LOOK TO PREVAIL SUNDAY INTO
TUESDAY...WHEN THE NEXT SYSTEM IN THE ACTIVE PATTERN BEGINS TO
AFFECT THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   71  57  75  55 / 100  70  10  30
FSM   77  60  76  56 /  90  70  10  10
MLC   74  58  77  57 /  90  30  10  10
BVO   70  57  73  53 / 100  70  10  40
FYV   72  58  71  51 /  90  80  20  20
BYV   72  58  69  50 /  80  80  20  10
MKO   71  58  74  57 / 100  60  10  20
MIO   71  57  70  52 / 100  80  20  40
F10   70  56  76  57 / 100  50  10  20
HHW   77  61  80  59 /  80  30  10  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 AM THURSDAY FOR OKZ054-OKZ055-OKZ056-
     OKZ057-OKZ058.

AR...NONE.
&&

SHORT TERM...21
LONG TERM....05

Hazardous weather outlook, May 7, 1:27 PM CDT, 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
127 PM CDT WED MAY 7 2008

ARZ001-002-010-011-019-020-029-OKZ049-053>076-081000-
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-
100 PM CDT WED MAY 7 2008

...SEVERE STORMS THIS AFTERNOON AND EVENING...ALONG WITH
   POTENTIAL FOR TORNADOES AND FLASH FLOODING...

...THIS COULD BE A MAJOR EVENT...

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

.DAY ONE...TODAY AND TONIGHT.
TORNADO.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...MID TO LATE AFTERNOON OR EARLY EVENING.

	AREA AT GREATEST RISK...SOUTHEAST OKLAHOMA WEST CENTRAL ARKANSAS.

SEVERE THUNDERSTORM.
	RISK...SIGNIFICANT.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. .
	ONSET...MID AFTERNOON.

	AREA AT GREATEST RISK...SOUTHEAST OKLAHOMA WEST CENTRAL ARKANSAS.

FLASH FLOOD.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...FROM STATE HIGHWAY 412 NORTH.

HEAVY RAIN.
	RISK...SIGNIFICANT.
	AREA...NORTHEAST OKLAHOMA.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...AREAS NEAR THE KANSAS BORDER.

DISCUSSION...
SEVERE THUNDERSTORMS WILL DEVELOP THIS AFTERNOON IN SOUTH CENTRAL
OKLAHOMA AND NORTHEAST TEXAS AND EXPAND INTO EASTERN OKLAHOMA AND
ADJACENT ARKANSAS. SOME OF THESE STORMS...ESPECIALLY IN SOUTHEAST
OKLAHOMA AND WEST CENTRAL ARKANSAS WILL BE CAPABLE OF PRODUCING
TORNADOES.

AN UPPER LEVEL LOW WILL MOVE FROM THE SOUTHWEST CORNER OF OKLAHOMA
DIRECTLY THROUGH EASTERN OKLAHOMA THIS EVENING. INSTABILITY AND
SHEAR WILL SUPPORT SUPERCELL DEVELOPMENT...MAINLY WITH AND TO THE
SOUTH OF THE UPPER LOW TRACK.  IN TIME CELLS WILL MERGE AND BECOME
MORE LINEAR...DEVELOPING INTO SQUALL LINES OR SEVERE CELLS EMBEDDED
WITHIN LARGER RAIN AREAS. CONVECTION IS EXPECTED TO STRENGTHEN BY
MID OR LATE AFTERNOON AND CONTINUE WELL INTO THE EVENING
HOURS BEFORE WEAKENING.

IN ADDITION...HEAVY RAIN FROM THIS MORNINGS THUNDERSTORMS...AND
MORE HEAVY RAIN...PRIMARILY NORTH OF THE UPPER LOW TRACK WILL
PRESENT A THREAT OF FLOODING RAIN...PARTICULARLY NORTH OF STATE
HIGHWAY 412.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL BE NEEDED.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...THUNDERSTORM POTENTIAL.
FRIDAY...THUNDERSTORM POTENTIAL.
SATURDAY...SEVERE THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY...NO HAZARDS.
TUESDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
A COLD FRONT ASSOCIATED WITH TODAYS LOW PRESSURE SYSTEM
WILL REMAIN IN OUR AREA THE NEXT FEW DAYS KEEPING THUNDERSTORMS
IN THE FORECAST.  THE BEST CHANCE FOR SEVERE WEATHER WILL BE
LATE SATURDAY OR SATURDAY NIGHT.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.

In the hours before

Special weather statement, May 7, 8:55 AM CDT, 5 hours 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
855 AM CDT WED MAY 7 2008

OKZ062-063-068-071500-
CHEROKEE OK-DELAWARE OK-MAYES OK-
855 AM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1000 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHERN DELAWARE AND SOUTHEASTERN MAYES

IN EAST CENTRAL OKLAHOMA
     NORTHERN CHEROKEE

AT 855 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
NORTH OF LOST CITY...MOVING NORTHEAST AT 35 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...JAY...OAKS...LEACH...TWIN
OAKS...KANSAS...COLCORD...ZENA...HULBERT...LOST CITY...PEGGS AND
ROSE.

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

LAT...LON 3633 9459 3590 9513 3600 9524 3602 9522
      3603 9523 3604 9520 3606 9521 3654 9485
TIME...MOT...LOC 1355Z 221DEG 31KT 3604 9513

Special weather statement, May 7, 9:17 AM CDT, 4 hours 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
917 AM CDT WED MAY 7 2008

OKZ070-071-071500-
MCINTOSH OK-MUSKOGEE OK-
917 AM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1000 AM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     EASTERN MUSKOGEE

IN SOUTHEAST OKLAHOMA
     NORTHEASTERN MCINTOSH

AT 917 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
WARNER...MOVING NORTHEAST AT 30 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...PUMPKIN CENTER...CHECOTAH...
RENTIESVILLE...MUSKOGEE...WARNER...OKTAHA...KEEFETON...SUMMIT...
BRAGGS...FORT GIBSON AND WEBBERS FALLS.

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

LAT...LON 3581 9541 3582 9513 3549 9512 3542 9529
      3547 9558
TIME...MOT...LOC 1417Z 212DEG 28KT 3551 9527

Special weather statement, May 7, 9:44 AM CDT, 4 hours 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
944 AM CDT WED MAY 7 2008

OKZ068-071515-
CHEROKEE OK-
944 AM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1015 AM CDT
FOR THE FOLLOWING COUNTY...

IN EAST CENTRAL OKLAHOMA
     SOUTHERN CHEROKEE

AT 944 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 16
MILES SOUTHWEST OF TAHLEQUAH...MOVING NORTHEAST AT 40 MPH. SOME
LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...TAHLEQUAH AND
ELDON.

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

LAT...LON 3613 9480 3582 9481 3565 9499 3565 9512
      3578 9513
TIME...MOT...LOC 1444Z 219DEG 37KT 3573 9505

Special weather statement, May 7, 10:24 AM CDT, 3 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1024 AM CDT WED MAY 7 2008

OKZ064-071600-
CREEK OK-
1024 AM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1100 AM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHEAST OKLAHOMA
     NORTHERN CREEK

AT 1024 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4
MILES SOUTHEAST OF SHAMROCK...MOVING NORTHEAST AT 35 MPH. SOME
LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...DEPEW...
SHAMROCK AND MANNFORD.

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

LAT...LON 3611 9629 3608 9629 3609 9625 3604 9618
      3578 9649 3587 9664 3592 9664 3617 9637
TIME...MOT...LOC 1524Z 224DEG 34KT 3589 9651

Special weather statement, May 7, 11:18 AM CDT, 2 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1118 AM CDT WED MAY 7 2008

OKZ064>066-070-071700-
CREEK OK-MUSKOGEE OK-OKFUSKEE OK-OKMULGEE OK-
1118 AM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL NOON CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     OKMULGEE AND SOUTHERN CREEK

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN MUSKOGEE AND EASTERN OKFUSKEE

AT 1118 AM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 2 MILES NORTHEAST OF BEARDEN TO 2 MILES SOUTHEAST
OF BRYANT...MOVING NORTHEAST AT 50 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THESE STORMS INCLUDE...OKEMAH...WELEETKA...BEARDEN...
CLEARVIEW...PHAROAH...CASTLE...MASON...OKFUSKEE...OKMULGEE...
HENRYETTA...BRYANT...DEWAR...GRAYSON...SCHULTER...MORRIS...ERAM...
PRESTON...BEGGS...BALD HILL...SLICK...JAMESVILLE AND WILSON.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3577 9555 3555 9578 3555 9583 3550 9583
      3547 9588 3538 9594 3538 9597 3532 9600
      3534 9645 3544 9645 3587 9625
TIME...MOT...LOC 1618Z 210DEG 46KT 3542 9634 3541 9601

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 3:02 AM CDT	River Flood Warning	TSA	Ottawa	5 days
May 7, 3:22 AM CDT	Flash Flood Watch	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Washington	24 hr
May 7, 6:15 AM CDT	Special Weather Statement	TSA	Rogers	45 min
May 7, 6:42 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers	63 min
May 7, 6:50 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	25 min
May 7, 7:07 AM CDT	Severe Thunderstorm Warning	TSA	Delaware, Mayes	53 min
May 7, 7:12 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	48 min
May 7, 7:49 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	56 min
May 7, 8:18 AM CDT	Areal Flood Advisory	TSA	Creek, Mayes, Muskogee, Okmulgee, Osage, Pawnee and 3 more	33 days
May 7, 8:55 AM CDT	Special Weather Statement	TSA	Delaware	65 min
May 7, 9:00 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes	45 min
May 7, 9:17 AM CDT	Special Weather Statement	TSA	Muskogee	43 min
May 7, 9:30 AM CDT	River Flood Warning	TSA	Ottawa	58 hr
May 7, 9:44 AM CDT	Special Weather Statement	TSA	Cherokee	31 min
May 7, 10:24 AM CDT	Special Weather Statement	TSA	Creek	36 min
May 7, 11:18 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	42 min
May 7, 11:19 AM CDT	Areal Flood Advisory	TSA	Cherokee, Creek, Haskell, Latimer, McIntosh, Muskogee and 8 more	33 days
May 7, 12:22 PM CDT	Areal Flood Advisory	TSA	Cherokee, Craig, Creek, Delaware, Mayes, Muskogee and 7 more	37 days
May 7, 12:48 PM CDT	Areal Flood Advisory	TSA	Craig, Creek, Nowata, Okfuskee, Okmulgee, Osage and 3 more	37 days
May 7, 1:14 PM CDT	Areal Flood Advisory	TSA	Cherokee, Craig, Delaware, Mayes, Muskogee, Nowata and 3 more	37 days
May 7, 2:42 PM CDT	River Flood Warning	TSA	Nowata	18 hr
May 7, 4:29 PM CDT	Special Weather Statement	TSA	Creek, Okfuskee	61 min
May 7, 5:31 PM CDT	Special Weather Statement	TSA	Creek	59 min
May 7, 5:48 PM CDT	Special Weather Statement	TSA	Okfuskee	27 min
May 7, 6:14 PM CDT	Severe Thunderstorm Warning	TSA	Creek, McIntosh, Okfuskee, Okmulgee	46 min
May 7, 6:17 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, McIntosh, Pittsburg, Pushmataha	43 min
May 7, 6:23 PM CDT	Severe Thunderstorm Warning	TSA	Creek	67 min
May 7, 6:41 PM CDT	Tornado Warning	TSA	Creek, Okmulgee	64 min
May 7, 6:42 PM CDT	Flash Flood Warning	TSA	Creek, Okfuskee	5 hr
May 7, 6:54 PM CDT	Flash Flood Warning	TSA	Osage, Pawnee	6 hr
May 7, 6:56 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 5 more	64 min
May 7, 6:57 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more	63 min

Nearby

Flash Flood Warnings in Oklahoma, 2008 Every flash flood warning in 2008

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.