An area of low pressure in central Mississippi moved north into western Tennessee, bringing an associated warm front into north Alabama during the early morning hours of the 23rd. A tropical air mass combined with strong low level wind shear and weak instability to produce several low-topped convective showers and a few thunderstorms during the overnight hours.
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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 area of low pressure in central Mississippi moved north into western Tennessee, bringing an associated warm front into north Alabama during the early morning hours of the 23rd.
A tropical air mass combined with strong low level wind shear and weak instability to produce several low-topped convective showers and a few thunderstorms during the overnight hours. One of these low-topped thunderstorms tracked through southwest through eastern DeKalb County, and exhibited miniature supercell characteristics, including a moderate low level mesocyclone. This and another nearby storm produced two tracks of sporadic wind damage to trees in the county. Of note, this particular cell produced little or no cloud to ground lightning activity.
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 Oct 22, 8:53 PM CST, 3 hours 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 953 PM CDT MON OCT 22 2007 .UPDATE... PLAN ON RAISING OVERNIGHT LOW TEMPERATURES INTO THE 65-70F RANGE... AND MAKING THE MENTION FOR ISOLATED RATHER THAN SCATTERED T-STORMS. NO OTHER CHANGES ARE PLANNED AT THIS TIME. && .UPDATE... SOME RELIEF OF THE EXCEPTIONAL DROUGHT IS IN THE WORKS ACROSS THIS REGION TONIGHT AND TOMORROW. A NORTH AMERICAN/NORTHERN HEMISPHERE VIEW FROM ABOVE INDICATED A PLUME OF MOISTURE EXTENDING FROM THE SW GULF OF MEXICO TO SOUTHERN MISSISSIPPI...WITH COLDER CLOUD TOPS MOVING ACROSS WESTERN ALABAMA. THUNDERSTORMS WITHIN THIS MOISTURE PLUME VIA CLOUD-TO-GROUND LIGHTNING PLOTS WERE AFFECTING AREAS FROM THE MISSISSIPPI DELTA TO NORTH OF MOBILE. EVEN THOUGH IT IS PAST THE MIDDLE OF OCTOBER...9 PM TEMPERATURES ACROSS THE TENNESSEE VALLEY WERE UNUSUALLY WARM IN THE LOWER 70S AT ALL LOCATIONS. OUTPUT FROM THE 23/0000Z NAM INDICATED UPGLIDE OF THIS MOISTURE IN THE 300K RANGE APPROACHING THE THE REGION FROM THE SSW. RADAR RETURNS INDICATED SOME MID-LEVEL ENHANCEMENT OF RETURNS OF THE SHOWERS APPROACHING FROM THE SW. THUS WILL MAINTAIN 100 PERCENT CHANCES OF RAIN GOING FOR THE OVERNIGHT. STABILITY NUMBERS... K-INDEXES FROM THE NGM/NAM WERE ABOVE 35...WITH NEAR ZERO LIFTED INDEXES FROM THE NAM (THE NGM A BIT MORE UNSTABLE). WITH A MORE WIDESPREAD CHARACTER OF THE RAIN...HAVE REDUCED THUNDER CHANCES TO ISOLATED. DESPITE THE DROUGHT...AM SOMEWHAT CONCERNED ABOUT RUNOFF PROBLEMS FOR THE OVERNIGHT. PORTION OF NW ALABAMA...WITH MUSCLE SHOALS THROUGH 7 PM REPORTED 2.75 INCHES OF RAIN...WITH SOME +3 INCH TOTALS NOTED NEARBY. THE RAIN CAME IN ON/OFF AGAIN PERIODS...GIVING IT TIME TO SOAK IN. SHOWERS APPROACHING FROM THE SW SHOULD HAVE A SIMILAR CHARACTER. PONDING OF WATER IN LOW LYING AREAS IS A POSSIBILITY... HOWEVER WIDESPREAD FLOODING IS NOT ANTICIPATED. WILL HOLD ON ON A FLASH FLOOD OR FLOOD AT AT THIS TIME. UPDATED GRIDS HAVE BEEN SENT. TEXT PRODUCTS WILL BE SENT SHORTLY. RSB && .PREV DISCUSSION... LATEST MODEL RUNS CONTINUE THE TREND FOR NOT PROVIDING MUCH CONSENSUS WITH THE DEVELOPING WX PATTERN. THUS FAR...LIGHT TO MOD SHRA HAVE FALLEN ACROSS MUCH OF THE TN VALLEY ALTHOUGH WITH THE EXCEPTION OF EXTREME NW AL...MOST AREAS HAVE MEASURED LESS THAN A 1/4 IN. GULF MOISTURE THOUGH CONTINUES TO STREAM NWD INTO THE AREA AND WITH THE UPPER LOW OVER THE S PLAINS CONTINUING TO DEEPEN... STILL EXPECT THE PRECIP TO BECOME MORE ENHANCED LATER TONIGHT ESP WHEN EMBEDDED WAVES ALOFT BEGIN TO BREAK AWAY FROM THE MAIN LOW AND MOVE ACROSS THE REGION. ASSOCIATED COLD FRONT IS ALSO LAGGING TO THE WEST NEAR THE ARKLATEX REGION ALTHOUGH THE LATEST GFS/00Z ECMWF INDICATE SOME SEMBLANCE OF THIS BOUNDARY MOVING ACROSS THE AREA LATE TONIGHT AND EARLY TUE. THE DENSITY OF THE FRONT THOUGH IS EXPECTED TO WEAKEN AS IT MOVES AWAY FROM THE UPPER LOW ALTHOUGH SUFFICIENT CONV STILL EXISTS ALONG AND AHEAD OF THE BOUNDARY TO MAINTAIN CAT POPS THRU TUE ESP WITH FORECAST SOUNDINGS SHOWING PWS AOA 2 IN. WITH APPROACHING DEW POINTS AROUND 70 JUST S OF THE TN VALLEY...SOME WEAK INSTABILITY MAY WORK ITS WAY NWD PROVIDING A CHANCE FOR SOME EMBEDDED TSTMS WITHIN THE SHOWER ACTIVITY. NOT EXPECTING MUCH CHANGE IN OVERALL TEMPS THOUGH WITH THE WEAKENING FRONT ALTHOUGH SFC WINDS DO LOOK TO VEER WWD THEREBY CAPPING ANY FURTHER POTENTIAL FOR THUNDER PAST TUE. THE GLOBAL MODELS CONTINUE TO INDICATE THE UPPER LOW RETROGRADING WWD WED WITH THE DEEP MOISTURE FEED AHEAD OF THE SYSTEM WEAKENING ALTHOUGH LINGERING MOISTURE OVERRIDING THE SFC LAYER MAY STILL WARRANT SOME RAIN CHANCES INTO THU...ESP AS WEAK UPPER DISTURBANCES TRAVERSE NWD ACROSS THE TN VALLEY. BY FRI...THERE LOOKS TO BE SOME CONSENSUS AMONG THE GFS/06Z DGEX/00Z ECMWF FOR THE UPPER LOW/TROUGH TO FINALLY WEAKEN AND LIFT TOWARD THE NE THEREBY POTENTIALLY MOVING A SECOND COLD FRONT THOUGH THE AREA. RAIN CHANCES CONTINUE FOR FRI AHEAD OF THIS SECOND BOUNDARY BUT THEN LOOK TO COME TO AN END BY SAT AS SLIGHTLY COOLER AND DRIER AIR ADVECT EWD INTO THE REGION. && .PRELIMINARY POINT TEMPS/POPS... HUNTSVILLE 65 68 55 67 / 100 90 60 40 SHOALS 64 66 54 65 / 100 90 60 40 CULLMAN 64 67 55 67 / 100 90 60 40 FAYETTEVILLE 63 66 54 65 / 100 90 60 40 ALBERTVILLE 67 68 57 68 / 100 90 60 40 FORT PAYNE 64 67 55 67 / 100 90 60 40 && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && DG.09
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 800 PM CDT MON OCT 22 2007 ALZ001>010-016-TNZ076-096-097-231000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DE KALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 800 PM CDT MON OCT 22 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TONIGHT... SHOWERS AND ISOLATED THUNDERSTORMS WILL OVERSPREAD THE AREA FROM THE SOUTH AND WEST OVERNIGHT AS DEEP SUB-TROPICAL MOISTURE INTERACTS WITH A SURFACE LOW PRESSURE SYSTEM. THE HEAVIEST RAINFALL IS EXPECTED TO REMAIN ALONG AND WEST OF I-65 THROUGH DAYBREAK...WHERE AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE. ONE TO TWO INCHES OF RAIN...WITH ISOLATED AMOUNTS AROUND 3 INCHES HAVE OCCURRED IN THE PAST 12 HOURS ACROSS PORTIONS OF COLBERT AND LAUDERDALE COUNTIES IN NORTHWEST ALABAMA. THOUGH WIDESPREAD FLOODING IS NOT EXPECTED AT THIS TIME...THE ADDITIONAL RAINFALL ACROSS THESE AREAS WILL INCREASE THE THREAT OF LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. PERIODS OF RAIN WILL PERSIST ACROSS THE AREA TUESDAY...ALONG WITH THE THREAT OF ISOLATED THUNDERSTORMS DURING THE DAY. THE CHANCE FOR RAIN WILL DIMINISH THROUGH THE WEEK...BUT STILL EXIST THROUGH THURSDAY AS A CUT-OFF UPPER LEVEL LOW MEANDERS CLOSE TO THE REGION. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. BCC/JE/DJN
The Northeast Alabama radar (KHTX), 46 km away, was scanning. The volume nearest the first event began at 05:55 UTC.
6 thunderstorm wind. Local standard time, as filed.
Pine trees were blown down by thunderstorm winds in the northeastern section of Henegar, east of CR 131 and just north of South Sauty Creek.
A tall pine tree was blown down at the DeSoto State Park campground 7 miles northeast of Fort Payne. The observer reported that the tree was blown down in a north to south direction.
Thunderstorm winds blew trees down onto CR 140 approximately one mile north of the Ider community.
Thunderstorm winds blew down a tree onto CR 776 two miles north-northeast of Ider.
Thunderstorm winds blew a tree down across CR 89, 1.5 miles south of Mentone.
Thunderstorm winds blew down trees across Highway 117 in the southeast portion of Mentone.
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, October 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: 62067, 62066, 62069, 62068, 62070, 62071.