1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 1 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 Norman, OK wrote its last area forecast discussion before the first event at Aug 9, 2:10 PM CST, 5 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 310 PM CDT THU AUG 9 2001 ALTHOUGH IT IS CLEAR THAT COLD FRONT WILL MAKE IT INTO NORTH/NORTHWEST SECTIONS OF OKLAHOMA THIS EVENING AND OVERNIGHT...IT IS NOT SO CLEAR WHERE THE FRONT WILL END UP 24 TO 48 HOURS FROM NOW. MODELS HAVE CONSISTENTLY SLOWED PROGRESS AND/OR LIMITED THE LATITUDINAL SURGE THE PAST SEVERAL RUNS. BEING EARLY AUGUST...AND WITHOUT ANY SIGNIFICANT MID-UPPER LEVEL SUPPORT...FORECAST WILL BE BASED ON A MORE PESSIMISTIC OUTLOOK ON FRONTAL PROGRESS. STILL BELIEVE THAT FRONT WILL MAKE IT INTO SOUTHERN PORTIONS OF THE FORECAST AREA BY LATE FRIDAY...BUT WHETHER IT CONTINUES SOUTH...STALLS...OR BEGINS TO RETREAT FRIDAY NIGHT THROUGH SATURDAY IS STILL VERY MUCH UP IN THE AIR...SO TO SPEAK. DRIVING FORCE LATE FRIDAY THROUGH SATURDAY WILL BE CONVECTIVE COLD POOLS...IF THEY MATERIALIZE. ATMOSPHERE REMAINS RELATIVELY UNCAPPED...MOISTURE IS AVAILABLE...AND FRONTAL SURFACE WILL BE A SOURCE OF LIFT. ALSO... WEAK/PESKY CUTOFFS OVER NEW MEXICO AND COLORADO CONTINUE TO WEAKEN AND ARE BROUGHT OUT BY MODELS FRIDAY AFTERNOON THROUGH SATURDAY. THIS WILL PROVIDE MORE...BUT STILL RELATIVELY WEAK...LARGE SCALE FORCING ACROSS THE AREA. WILL SHOW INCREASE IN POPS FRIDAY NIGHT NORTH OF BOUNDARY FOR THIS REASON. CHANCE POPS WILL CONTINUE SATURDAY MOST AREAS. THINK MOST AREAS WILL RECEIVE SOME RAINFALL...JUST A MATTER OF TIMING. FOR THE EXTENDED PERIODS...LATEST MRF INDICATES WHAT I CONSIDER A MAJOR CHANGE TO PREVIOUS RUNS. LATEST DATA INDICATES A MUCH COOLER PERIOD THAN ALREADY FORECAST. THE MRF IS FALLING MORE IN LINE WITH THE ECMWF ON MAJOR FEATURES...BUT STILL TOO COOL AROUND THESE PARTS. THEREFORE...ONLY CHANGE IN THE EXTENDED PERIODS WILL BE TO REMOVE POPS FROM MUCH OF THE AREA FOR THE EARLY WEEK PERIOD...BUT WILL KEEP TEMPS PRETTY MUCH AS THEY ARE. FCSTID = 11 PRELIMINARY CCF NUMBERS... OKC 74 93 70 89 / 30 40 60 40 HBR 73 93 69 90 / 40 40 60 40 SPS 76 100 74 94 / 30 30 40 40 GAG 66 85 62 88 / 70 40 60 40 PNC 70 88 66 88 / 60 40 60 30 DUA 76 100 73 93 / 20 30 40 40 .OUN... OK...NONE. TX...NONE.
The national radar mosaic for the moment the first event began.
1 lightning. Local standard time, as filed.
Lightning struck a transformer, causing a power outage to approximately 800 residents.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2001Every state in 2001This day in weather historyWarnings in Texas, 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: 5260246.