An intense thunderstorm developed over the central and southern portions of Huntsville dumping excessive rainfall in a very short period of time. Rainfall amounts over 3 inches were reported via a fairly dense network of automated and manual rain gages in this area.
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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 HUN wrote it up.
An intense thunderstorm developed over the central and southern portions of Huntsville dumping excessive rainfall in a very short period of time. Rainfall amounts over 3 inches were reported via a fairly dense network of automated and manual rain gages in this area. Peak rainfall rates of up to 6 inches per hour were observed during a 20 minute time span. This led to quick runoff and flash flooding in low lying areas of south Huntsville which impacted several residences about one mile south of downtown. Flash flooding was also reported on several busy streets.
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 Huntsville, AL wrote its last area forecast discussion before the first event at Aug 29, 3:37 PM CST, 1 hour 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 437 PM CDT WED AUG 29 2007 .SYNOPSIS... IN THE UPPER LEVELS...A TROUGH CENTERED OVER NE TEXAS AND A RIDGE IN THE NORTHERN GOM WERE PUSHING DEEP MOISTURE NORTHWARD INTO THE TN VALLEY. THE POLAR WESTERLIES WERE CONFINED MOSTLY TO THE NORTHERN HALF OF THE COUNTRY...WITH SLIGHT AMPLIFICATION RESULTING IN A RIDGE/WEST TROUGH/UPR MIDWEST PATTERN. AT/NEAR THE SFC...AN ELONGATED COLD FRONT STRETCHED FROM THE SOUTHERN HIGH PLAINS NORTHEASTWARD TO CENTRAL QUEBEC. SCATTERED TO NUMEROUS CONVECTION HAD DEVELOPED AHEAD OF THE FRONT IN THE WARM HUMID AIRMASS IN THE SOUTHERN PLAINS AND SOUTHEAST. CLOSE TO HOME...TEMPS HAVE REACHED THE LOW 90S IN THE HUNTSVILLE AREA WHERE AMPLE SUNSHINE OCCURRED AS THE MID-LEVEL CLOUD DECK ERODED EARLIER TODAY. HEAVY SHRAS/TSRAS HAVE DEVELOPED ACROSS MUCH OF THE AREA...PARTICULARLY IN WESTERN AND EASTERN PARTS OF OUR FA. ONE RAWS SITE IN EXTREME NW ALABAMA IN LAUDERDALE COUNTY RECORDED 1.96 INCHES OF RAIN IN ONE HOUR THIS AFTN. .SHORT TERM (TODAY THROUGH FRIDAY)... CONVECTIVE ACTIVITY SHOULD BE ONGOING INTO THE EVENING HOURS...ESPECIALLY IN THE EAST AND SOUTH...PER ANALYSIS OF RECENT TRENDS ON RADAR/SAT IMAGERY. STILL...CONVECTION IS NOT ENTIRELY DIURNALLY DRIVEN...DUE TO MID-LEVEL SHORT WAVE SUPPORT. THUS...WE COULD SEE SOME CONVECTION REDEVELOP LATER THIS EVENING AND CONTINUE INTO THE OVERNIGHT HOURS. WESTERN AND SOUTHERN AREAS MAY BE FAVORED SLIGHTLY FOR CONVECTION DURING THE OVERNIGHT...ALTHOUGH THE SHORT WAVE AND ASSOCIATED DYNAMIC FORCING APPEARED BROAD ENOUGH TO WARRANT EVEN SPREADING OF POPS AT THIS TIME. FCST SNDGS CONTINUE TO INDICATE PWATS 2.0 INCHES THROUGH TOMORROW...WITH GENERAL MOIST ADIABATIC PROFILES AND HIGH WET BULB FREEZING LEVELS. SO...EFFICIENT WARM RAIN PRODUCTION LOOKS SET AGAIN FOR TOMORROW. ENVIRONMENTAL WINDS WILL BEGIN TO INCREASE BY THE AFTERNOON HOWEVER...AS A FRONT BACK DOORS INTO THE AREA. SO...CELL MOVEMENT IN ADDITION TO PROPAGATION SHOULD BE EVEN QUICKER THAN TODAY. A FRONTAL PASSAGE INTO THE AREA LATE TOMORROW WILL BEGIN TO SEPARATE US FROM GULF MOISTURE...HOWEVER...SUFFICIENT MOISTURE SHOULD LINGER INTO FRIDAY TO ALLOW FOR SCATTERED CONVECTION IN THE AFTERNOON/EVENING HOURS. BELIEVED THAT THE GFS WAS A LITTLE TOO AGGRESSIVE IN PUSHING LOW-LEVEL MOISTURE OUT OF THE AREA...AS IT WAS SHOWING DAYTIME MIXING DRIVING DEW POINTS INTO THE LOW TO MID 60S FRI AFTN. NAM BUFR SNDGS STILL INDICATE QUITE MOIST CONDITIONS AND THIS IS BACKED UP SOMEWHAT BY THE UKMET WHICH KEEPS SOME MOISTURE IN THE AREA. A LOOK AT CURRENT DEW POINT TRENDS BEHIND THE FRONT IN THE PLAINS SHOWS MOISTURE LAGGING BEHIND THE FRONT A BIT...AND GIVEN THE MAGNITUDE OF DEEP MOISTURE INTRUSION INTO THE SE CONUS...BELIEVE THE DRY AIR WILL FILTER IN MORE SLOWLY THAN WHAT THE GFS SUGGESTS. SO...CHANCE POPS REMAIN FOR FRI. BELIEVE THAT EVEN THOUGH NE/E LOW-LEVEL FLOW WILL CONTINUE INTO THE WEEKEND...WE SHOULD GET SOME RECYCLED MOIST AIR INTO THE REGION FOR SATURDAY. BUT AGAIN...THIS IS RECYCLED AIR WRAPPING AROUND THE OHIO VALLEY RIDGE...SO THE DRYING PROCESS SHOULD BEGIN BUT NOT BEFORE PROVIDING ENOUGH MOISTURE TO ALLOW FOR AT LEAST ISOLATED CONVECTION ON SAT. .LONG TERM(SUNDAY THROUGH WEDNESDAY)... THE OHIO VALLEY/MID-ATLANTIC RIDGE IS EXPECTED TO MAINTAIN CONTROL OVER OUR WEATHER FOR MOST OF THIS PERIOD. SLIGHT CHANCE POPS TO CONTINUE FOR SUN/MON AS DAYTIME HEATING COUPLED WITH LOW-LEVEL MOISTURE MAY ALLOW FOR AT LEAST ISOLATED CONVECTION. N/NE LOW-LEVEL FLOW AROUND THE SOUTHERN FLANK OF THE RIDGE IS EXPECTED TO CONTINUE INTO MID WEEK...THUS EFFECTIVELY KEEPING US ISOLATED FROM DEEPER TROPICAL OR GULF MOISTURE. THE WAY IT LOOKS NOW...GRADUAL INFILTRATION OF DRIER CONTINENTAL AIR AROUND THE BASE OF THE RIDGE AND INTO OUR AREA SHOULD MINIMIZE CHANCES FOR PRECIP BY TUES. THUS...POPS WERE REMOVED FROM TUES ONWARD...AND HIGH TEMPS IN THE LOW 90S LOOK PROBABLE AGAIN. && .PRELIMINARY POINT TEMPS/POPS... HUNTSVILLE 72 86 71 89 / 50 50 30 30 SHOALS 72 87 71 90 / 50 60 30 30 CULLMAN 71 85 70 89 / 50 60 30 40 FAYETTEVILLE 71 84 69 88 / 50 50 30 30 ALBERTVILLE 72 86 70 90 / 50 50 30 40 FORT PAYNE 69 85 68 88 / 50 50 30 40 && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && 03.KDW
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 100 PM CDT WED AUG 29 2007 ALZ001>010-016-TNZ076-096-097-301030- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DE KALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 100 PM CDT WED AUG 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE TENNESSEE VALLEY THIS AFTERNOON AND EVENING. SOME OF THESE STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND WIND GUSTS TO 40 MPH. ALTHOUGH THE STRONGEST STORMS SHOULD TAPER OFF SHORTLY AFTER SUNSET...A FEW SHOWERS AND THUNDERSTORMS MAY PERSIST THROUGH THE OVERNIGHT HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. THIS WETTER PERIOD WILL CONTINUE INTO THURSDAY...WITH SHOWERS AND THUNDERSTORMS DEVELOPING EARLY AND PERSISTING OFF AND ON THROUGHOUT THE DAY. AGAIN...SOME OF THESE STORMS MAY RESULT IN LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND GUSTY WINDS. A WEAK FRONT MOVING THROUGH THE REGION MAY BRING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ON FRIDAY WITH THE ACTIVITY COMING TO AN END FRIDAY EVENING. TYPICAL SUMMERTIME AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE DURING THE FIRST PART OF NEXT WEEK. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. RB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 318 PM CDT WED AUG 29 2007 ALZ008-292100- MARSHALL- 318 PM CDT WED AUG 29 2007 ...SIGNIFICANT WEATHER ALERT FOR SOUTHERN MARSHALL COUNTY UNTIL 400 PM CDT... AT 318 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ARAB...MOVING EAST AT 15 MPH. WINDS UP TO 45 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... ARAB. HYATT. MOUNTAIN VIEW. HIGHWAY 431. ALBERTVILLE. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. BCC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 318 PM CDT WED AUG 29 2007 ALZ008-292100- MARSHALL- 318 PM CDT WED AUG 29 2007 ...SIGNIFICANT WEATHER ALERT FOR MARSHALL COUNTY UNTIL 400 PM CDT... AT 318 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ARAB...MOVING EAST AT 15 MPH. ANOTHER RAPIDLY STRENGTHENING STORM WAS LOCATED NEAR GRANT...MOVING EAST AT 10 MPH. WINDS UP TO 45 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED WITH BOTH OF THESE STORMS. * LOCATIONS IN OR NEAR THE PATH INCLUDE... ARAB. GRANT. COLUMBUS CITY. HIGHWAY 431. ALBERTVILLE. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. IF ON THE WATER ALONG THE SOUTHERN PORTION OF LAKE GUNTERSVILLE...MOVE TO SAFE HARBOR AS SOON AS YOU CAN. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. BCC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 344 PM CDT WED AUG 29 2007 ALZ009-292115- JACKSON- 344 PM CDT WED AUG 29 2007 ...SIGNIFICANT WEATHER ALERT FOR SOUTHERN JACKSON COUNTY UNTIL 415 PM CDT... AT 344 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR WOODVILLE...OR 11 MILES WEST OF SCOTTSBORO...MOVING EAST AT 15 MPH. WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... HIGHWAY 72. LIM ROCK. LARKINSVILLE. SCOTTSBORO. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. BCC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 357 PM CDT WED AUG 29 2007 ALZ010-292130- DE KALB- 357 PM CDT WED AUG 29 2007 ...SIGNIFICANT WEATHER ALERT FOR SOUTHERN DEKALB COUNTY UNTIL 430 PM CDT... AT 354 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM APPROACHING GERALDINE...OR ROUGHLY NEAR THE PAINTER COMMUNITY...MOVING EAST AT 10 MPH. WINDS UP TO 50 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... WHITON. HOPEWELL. GERALDINE. LAKEVIEW. SKIRUM. INTERSTATE 59. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. BCC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 555 PM CDT WED AUG 29 2007 ALZ006-300000- MADISON- 555 PM CDT WED AUG 29 2007 ...SIGNIFICANT WEATHER ALERT FOR MADISON COUNTY UNTIL 7 PM CDT... AT 555 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAZEL GREEN TO OWENS CROSSROADS...OR ALONG A LINE EXTENDING FROM MERIDIANVILLE TO 9 MILES SOUTHEAST OF REDSTONE ARSENAL...MOVING EAST AT 10 MPH. WINDS UP TO 35 MPH...OCCASIONAL LIGHTNING AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS. * LOCATIONS IN OR NEAR THE PATH INCLUDE... FARLEY. MOORES MILL. HADEN. HAMPTON COVE. OWENS CROSSROADS. DEPOSIT. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. TROUTMAN
The Northeast Alabama radar (KHTX), 54 km away, was scanning. The volume nearest the first event began at 23:28 UTC.
3 heavy rain, 2 lightning, 2 flash flood. Local standard time, as filed.
Lightning sparked a small attic fire at a residence. Total damages unknown and time was estimated.
Lightning struck a power substation on Chaney Thompson Road causing a power outage affecting 1900 customers. Lightning also struck a substation in downtown Huntsville affecting 300 customers. Time was estimated.
Intense rainfall was measured at the Spring Branch gage at Johnson Road. One hour rainfall from 6:00 to 7:00 pm was 3.40 inches. 30 minute rainfall from 6:00 to 6:30 pm was 2.41 inches. 20 minute rainfall from 6:15 pm to 6:35 pm was 2.18 inches, averaging 0.55 every 5 minutes during this time frame.
Rainfall of 3.79 inches was measured.
A flash flood brought knee deep water to two homes in a residential community along Auburn Avenue and Stanford Street.
A NASA meteorologist measured 3.90 inches of rainfall.
Flash flooding prompted a section of Balmoral Drive to be blocked off. Flash flooding was reported on several Huntsville streets including Meridian Street, Whitesburg Drive, South Memorial Parkway, and University Drive. Time estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2007Every state in 2007This day in weather historyWarnings in Alabama, August 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: 58222, 58224, 58229, 58237, 58244, 58231, 58245.