Heavy rain caused the Verdigris River to flood near Lenapah.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TSA wrote it up.
Heavy rain caused the Verdigris River to flood near Lenapah.
The local office's own words before the first event, 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 the first event at May 7, 7:57 PM CST, 1 hour 3 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
857 PM CDT MON MAY 7 2007
.DISCUSSION...
HAVE ADJUSTED POPS AND QPF LOOKING AT THE CURRENT TRENDS.
BIGGEST CONCERN IS STILL HEAVY RAIN POTENTIAL IF THE
THUNDERSTORM CLUSTER DEVELOPS A BOUNDARY
AS IT MOVES INTO SOUTHEAST OKLAHOMA OVER THE NEXT FEW HOURS.
NO SIGNIFICANT CHANGES TO TEMPERATURES AT THIS TIME.
UPDATE OUT SHORTLY.
&&
.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 PM TUESDAY FOR OKZ054-OKZ055-OKZ056-
OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-OKZ063-OKZ064-
OKZ065-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-OKZ071-OKZ072-
OKZ073-OKZ074-OKZ075.
AR...NONE.
&&
SHORT TERM...23
LONG TERM....15HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE TULSA OK
735 PM CDT MON MAY 7 2007
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-
735 PM CDT MON MAY 7 2007
THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.
...TORNADO WATCH 255 IN EFFECT FOR PARTS OF SOUTHEAST OKLAHOMA
UNTIL 3 AM...
.DAY ONE...LATE AFTERNOON AND TONIGHT.
TORNADO.
RISK...ELEVATED.
AREA...SOUTHEAST OKLAHOMA.
ONSET...THIS EVENING.
SEVERE THUNDERSTORM.
RISK...ELEVATED.
AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET...TONIGHT.
AREA AT GREATEST RISK...EASTERN OKLAHOMA
FLASH FLOOD.
RISK...ELEVATED.
AREA...EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET...TONIGHT.
AREA AT GREATEST RISK...EASTERN OKLAHOMA.
HEAVY RAIN.
RISK...SIGNIFICANT.
AREA...EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET...TONIGHT.
AREA AT GREATEST RISK...EASTERN OKLAHOMA AND WEST CENTRAL AND
NORTHWEST ARKANSAS.
DISCUSSION...
STORMS HAVE BEGUN TO DEVELOP ACROSS PARTS OF NORTHEAST TEXAS ALONG A
NEARLY STATIONARY BOUNDARY. GIVEN THE AMPLE MOISTURE IN PLACE...LIFT
IN THE VICINITY OF THE BOUNDARY AND LOCALLY ENHANCED SHEAR AND
HELICITY...STORMS WILL HAVE THE POTENTIAL TO BECOME SUPERCELLULAR IN
NATURE. STRONG ROTATING UPDRAFTS CAPABLE OF PRODUCING TORNADOES AND
LARGE HAIL WITH ANY STORM ACROSS SOUTHEAST OKLAHOMA THIS EVENING.
ELSEWHERE...MUCH OF AREA HAS CAUGHT A BREAK FROM THE RECENT SHOWER
AND THUNDERSTORM ACTIVITY THAT BROUGHT HEAVY RAIN AND FLOODING TO
PARTS OF THE REGION...AS RAINFALL AMOUNTS OF 2 TO 4 INCHES HAVE BEEN
COMMON ACROSS NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS. ANOTHER
COMPLEX OF STORMS IS LIKELY TO FORM TO THE SOUTHWEST TONIGHT AND
MOVE NORTHEAST ACROSS PARTS OF EASTERN OKLAHOMA AND NORTHWEST
ARKANSAS LATE TONIGHT. WHILE MARGINALLY SEVERE WIND AND HAIL WILL BE
POSSIBLE...THE BIGGER THREAT WILL BE HEAVY RAIN AND FLASH FLOODING
AS THE ADDITIONAL RAIN FALLS OVER ALREADY SATURATED GROUND. THE
EXACT LOCATION OF THE HEAVIEST RAINFALL WHERE THE MAIN SURFACE
BOUNDARY SETS UP TONIGHT. IN ANY CASE...MUCH OF EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS MAY SEE AN ADDITIONAL 1 TO 2 INCHES OF
RAINFALL...WITH AROUND 4 INCHES POSSIBLE IN THE VICINITY OF THE
SURFACE BOUNDARY.
SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...SPOTTER
ACTIVATION LIKELY WILL BE NEEDED OVER SOUTHEAST OKLAHOMA THIS
EVENING. EMERGENCY MANAGERS AREAWIDE SHOULD ALSO CONTINUE TO MONITOR
LATER FORECASTS CONCERNING FLASH FLOOD POTENTIAL OVER THE REST OF
THE AREA LATER TONIGHT.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
TUESDAY...THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
WEDNESDAY THROUGH SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
EXTENDED DISCUSSION...
A COMPLEX OF STORMS WITH HEAVY RAINFALL WILL PERSIST INTO THE
MORNING HOURS BEFORE MOVING OUT OF THE AREA BY AFTERNOON. FLOODING
OF LOW LYING AREAS WILL LIKELY PERSIST THROUGH A GOOD PART OF
TUESDAY EVEN AFTER THE RAINFALL ENDS.
THE UPPER LEVEL STORM SYSTEM TO OUR WEST WILL BE VERY SLOW TO
MOVE EAST SO THUNDERSTORM CHANCES WILL PERSIST THROUGH SATURDAY.
HEAVY RAIN AND FLASH FLOODING WILL BE THE GREATEST THREAT WITH A
LESSER THREAT OF SEVERE WEATHER.
EMERGENCY MANAGEMENT PLANNING STATEMENT...
REMAIN ALERT TO THE POTENTIAL FOR FLASH FLOODING AND SEVERE
WEATHER.
WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Verdigris River near Lenapah rose above its flood stage of 30 feet at 10 pm CDT on May 7. It crested at 32.07 feet at 5 pm on May 8 before falling below its flood stage at 11 pm May 9. While in flood, the river caused Highway 10 east of Lenapah to be closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2007Every state in 2007This day in weather historyWarnings in Oklahoma, May 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 36972.