1 flood, 1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Aug 7, 2:00 PM CST, 3 hours earlier.
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE AUG 7 2001 SCT TSTMS CONTINUE THIS AFTERNOON OVER NW ARK. EXPECT SHOWER/TSTM ACTIVITY TO DRIFT WEST INTO PORTIONS OF EASTERN OKLAHOMA...BEFORE DISSIPATING AROUND MID EVENING WITH LOSS OF HEATING. SLOW WARMING TREND THE NEXT COUPLE OF DAYS A SOUTHERLY SFC WINDS INCREASE ACROSS THE AREA. REMNANTS OF BARRY WILL CONTINUE DRIFTING SLOWLY NNW AND HAVE MINIMAL IMPACT ON FA. WILL CONTINUE TO SEE SCT AFTERNOON STORMS ON WED...AGAIN MAINLY OVER NW ARK. LOWS WEDNESDAY NIGHT WILL BE A FEW DEGREES WARMER WITH SOUTHERLY WINDS IN THE 5 TO 10 MPH RANGE OVERNIGHT. HOT CONDITIONS RETURN ON THU AS LOW LEVEL FLOW VEERS TO THE SOUTHWEST WITH 850 TEMPS WARMING 5-6 DEGREES C BY THU AFTERNOON. PRECIP CHANCES WILL ALSO DECREASE AS LEVEL MOISTURE BEGINS TO SHIFT EAST. COULD SEE A FEW ISOLATED TSTMS OVER THE HIGH TERRAIN OVER EASTERN OK/NW ARK...BUT COVERAGE APPEARS TO BE TOO MINIMAL TO CARRY IN ZONES ATTM. AVN APPEARS TO BE TOO AGGRESSIVE IN MOVING COLD FRONT/PRECIP INTO INTO NORTHEAST OK/NW ARK THU NIGHT. UPPER LEVEL FLOW SUGGEST A SLOWER MOVEMENT ON FRONT AND WILL THEREFORE GO WITH THE SLOWER/DRIER EXTENDED ETA SOLUTION. EXPECT COLD FRONT TO MOVE INTO NORTHERN ZONES DURING THE DAY FRI WITH LOW CHANCE POPS INTO SAT AS FRONT STALLS OVER SOUTHEAST OK/NW ARK BY SAT. FCSTID = 12 TUL 76 96 80 101 / 10 0 0 0 FSM 74 95 77 98 / 30 20 10 10 MLC 75 95 78 100 / 20 10 0 0 BVO 72 97 76 102 / 10 0 0 0 FYV 71 90 73 95 / 30 20 10 10 BYV 71 90 73 95 / 30 20 10 10 MIO 73 95 75 100 / 10 0 0 0 MKO 76 95 78 100 / 20 10 0 0 F10 76 96 78 101 / 10 0 0 0 HHW 75 95 78 100 / 10 0 0 0 .TSA... AR...NONE. OK...NONE.
ARZ001-002-010-011-019-020-029-OKZ049-053>076-081100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 1200 PM CDT TUE AUG 7 2001 THE PERSISTENT RIDGE OF HIGH PRESSURE ALOFT OVER THE CENTRAL PART OF THE U.S. WILL CONTINUE TO WEAKEN AND MOVE TO THE NORTH. LOW PRESSURE OVER FAR WESTERN TENNESSEE WHICH IS ASSOCIATED WITH THE REMNANTS OF TROPICAL STORM BARRY WILL CONTINUE TO SLOWLY MOVE NORTHWEST. ENOUGH MOISTURE WILL BE PRESENT ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS FOR WIDELY SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP ACROSS THE ENTIRE AREA...THOUGH AREAL COVERAGE WILL BE MORE CONCENTRATED ACROSS NORTHWEST ARKANSAS AND FAR EASTERN OKLAHOMA. ANY SHOWERS AND THUNDERSTORMS THAT DEVELOP WILL BE SHORT LIVED...BUT WHERE THEY OCCUR...DANGEROUS LIGHTNING AND HEAVY DOWNPOURS CAN BE EXPECTED. AN OZONE ALERT HAS ALSO BEEN ISSUED FOR THE TULSA METROPOLITAN AREA FOR TODAY. PLEASE REFER TO THE PUBLIC INFORMATION STATEMENT /OKCPNSTUL/ ISSUED AT 600 AM FOR MORE INFORMATION. DETAILED FORECASTS AS WELL AS A GRAPHICAL VERSION OF THIS OUTLOOK CAN BE FOUND AT: WWW.SRH.NOAA.GOV/TULSA
The Tulsa radar (KINX), 73 km away, was scanning. The volume nearest the first event began at 23:03 UTC.
1 flood, 1 lightning. Local standard time, as filed.
Street flooding resulted from three and a half inches of rain which fell from thunderstorms in the Grove area.
Lightning struck a house in Grove. The resulting fire destroyed the house.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2001Every state in 2001This day in weather historyWarnings in Oklahoma, August 2001
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: 5265088, 5265089.