The combination of a weakening frontal boundary moving slowly southward and the afternoon sea breeze moving slowly northward resulted in a nearly stationary west-east line of thunderstorms. 00 inches, storms stalled right over Thomasville and produced significant flash flooding.
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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 TAE wrote it up.
The combination of a weakening frontal boundary moving slowly southward and the afternoon sea breeze moving slowly northward resulted in a nearly stationary west-east line of thunderstorms. With weak steering winds and high precipitable water values just under 2.00 inches, storms stalled right over Thomasville and produced significant flash flooding.
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 Tallahassee, FL wrote its last area forecast discussion before the first event at Jun 6, 5:50 AM EST, 10 minutes earlier.
AREA FORECAST DISCUSSION...Updated NATIONAL WEATHER SERVICE TALLAHASSEE FL 650 AM EDT Wed Jun 6 2012 Updated Aviation Discussion. .SYNOPSIS... Latest radar shows two area of convection, one assocd with MCV responsible for Tuesday's active convection was passing SE of the area, and a second SW-NE oriented line was moving from Gulf newd across local area aided by shortwave over MS. However as boundary layer begins to stabilize with much of the area overturned by earlier convection threat of strong to severe convection ended. AT UPPER LEVELS... The large scale longwave pattern remains highly amplified. This is highlighted by negatively tilted trough over Wrn states, pencil ridge ewd to across Plains, and a positively tilted trough from Atlc low east of Canadian Maritimes with axis wwd to Srn Great Lakes and SWWD into NE Gulf. Finally a cutoff was noted low over TX. Several shortwaves continue to ride along base of trough to ignite convection over SE region. The longwave pattern will deamplify some on Thursday as ern longwave trough will slowly pivot EWD and move offshore on Thursday with upper ridging progged to flatten some. Progressively drier air slowly builds into the region. AT LOWER LEVELS... Overnight analysis showed weak 1006mb low over Cntrl AL with quasi-stnry wavy front SEWD across SE GA and SWWD to NRN LA. Assocd convection lingered across SE GA portion past midnight aided by upper level shortwave, passing MCV and outflow boundaries. STORM AND RAINFALL THREAT FOR TODAY. Conditions will be less favorable for severe weather today as above MCV will be well SE of the area and hard to detect any upstream MCVs. However, several waves will ride east along front which will at best sag SWD and bisect the FL forecast area from ENE to WSW. Strong H5 flow forecast to lift NWD today so deep later flow fields and vertical shear should be less favorable than yesterday. Also, generally weak large scale forcing and poor mid level lapse rates argue against strong upward vertical motion suggesting that any strong to possibly isold severe thunderstorms will be rather short lived less intense and with less coverage. Still, with NW flow aloft and a juicy air mass along and S of the front aided by daytime heating and weak convergence, cant discount isold marginal wind and hail threat. Given position of front which keep SE half of CWA in warm sector this aftn/eve, another sharp SE-NW POP gradient continues next few days. POPs will remain likely to categorical today across the SE half of the forecast area. Some drying will begin to occur N of the front and POPs taper to chance NW of front. SPC has 5% risk area SRN portions of CWA. TONIGHT INTO FRIDAY The front will gradually weaken becoming more diffuse tonight into Thursday as it drifts into FL coastal counties then the local waters tonight then S of CWA on Fri. At same time, surface high builds into the OH Valley then ridges SEWD down the Appalachians to off the Carolina coast over the weekend with increasingly drier air overspreading into SE region tonight thru Fri. PoPs will taper from likely SE to wdly sct far NW Thursday afternoon. The dry push from the northwest will continue Thursday night into Friday when the long wave trough finally pulls away to the northeast. Temps will moderate to normal on Fri. && .SHORT TERM (Today through Friday)... Today...Moderate NW flow along with impulses rotating SEWD across the area aided by any leftover outflow boundaries and quasi- stationary front will lead to high pops with pronounced 60-30% SE-NE POP gradient. With influx of gulf moisture, and PWATs approaching 2 inches, heavy rainfall with localized flooding along and S of front cant be discounted especially training echoes occur as expected. Only fly in the ointment is shortwave over MS which may drop swd into gulf waters and stimulate return more convection than expected over wrn counties later today. HI RES guidance hints at same. Clouds cover should keep temps below climo. Expect highs from low 80s coast to mid 80s inland. Tonight...20-50% NW-SE POP gradient. Expect lows from upper 60s N to lower 70s coast. Thursday...Expect 20-50% NW-SE POP gradient daytime, 0-40% at night. Highs low 80s coast to near 90 inland. Lows mid 60s inland to low 70s coast. Friday...Expect 0-30% NW-SE POP gradient. Highs mid 80s coast to around 90 inland. && .Long Term...(Saturday through Wednesday)...The very unusual and complex Synoptic Scale pattern that seemed to dominate much of May before carrying over into June, shows no signs of relenting, just as we are ejecting one batch of moisture to our east on Thursday, yet another slow moving cutoff Upper Level Low appears primed to take its place near the northern Gulf Coast by the beginning of the weekend at the earliest. Only the 12 UTC run of the Canadian (which appears to be the outlier) would extend the brief stay of the dry Wx through the 1st half of the weekend. The 12 UTC ECMWF and new 00 UTC GFS are much more closely aligned, although the GFS would bring rain chances back to the region as early as Fri Aftn, while the Euro would likely hold off on decent rain chances until Sat. It also should be noted that the ECMWF does eject the Upper Low further to the NE, but keeps plenty of residual moisture well to the south, likely making little difference to the fcst. Nevertheless, once this Upper Low becomes established over the region, it appears very likely to hang around through at least the middle of next week (if not longer), which should keep POPs above Climo and Max Temps generally near or below Climo through the period. In fact, with so much residual cloud cover expected over the CWA, it may be very difficult to generate any type of discernible sea breeze or sea breeze related convection through the period. && .MARINE (Tonight through Sunday)... Winds have increased overnight to borderline exercise caution levels as the gradient tightens ahead of an approaching front. Later today, as the front gets close enough that the gradient will weaken somewhat which will bring winds down below headline criteria. The front is expected to stall north of the waters today and remain in place through Thursday before dissipating. High pressure will then build from the Appalachians southeast to a position off the Carolina Coast over the weekend. This will set up a period of east to southeast flow. && .Aviation...(through 12 UTC Wed)...It was quite a mixed bag in terms of showers/storms as well as Cig and Vis restrictions at the terminals overnight, and new convection continues to fire offshore from the FL Panhandle and move inland into the CWA. Thus far, most of the Taf sites have just been glazed by the convection, but went with earlier begin times at TLH, ECP, and VLD, with just VCTS at DHN and ABY, which should stay just south of the main storms with the front trying to push southward. Overnight, may see some late night MVFR Cig restrictions at TLH, ABY, and VLD. && .Fire Weather...Plenty of low level moisture and elevated rain chances should keep relative humidities well above critical thresholds for the next few days. && .PRELIMINARY POINT TEMPS/POPS... Tallahassee 88 71 88 69 91 / 50 40 40 20 20 Panama City 85 73 85 73 87 / 40 30 30 20 20 Dothan 89 69 90 69 91 / 40 20 20 10 10 Albany 86 68 87 67 91 / 40 30 20 10 10 Valdosta 87 68 88 66 90 / 50 40 40 20 20 Cross City 86 71 88 68 91 / 60 50 50 40 30 Apalachicola 83 73 83 72 85 / 50 40 40 20 20 && .TAE WATCHES/WARNINGS/ADVISORIES... AL...None. GA...None. FL...None. GM...None. && BLOCK/GOULD/VICKERY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TALLAHASSEE FL 400 AM EDT WED JUN 6 2012 ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-070800- COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE RIVER FL OUT TO 20 NM- COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM- COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO 20 NM- COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM- WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM- WATERS FROM SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM- 400 AM EDT WED JUN 6 2012 /300 AM CDT WED JUN 6 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA... SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND AND PANHANDLE...AND ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED AS A FRONTAL SYSTEM STALLS ACROSS THE REGION. A FEW STORMS COULD BRIEFLY BECOME STRONG TO SEVERE...BUT THE PROBABILITY OF A SEVERE STORM WITHIN 25 MILES OF A POINT WILL ONLY BE ABOUT 5 PERCENT...WHICH IS LOWER THAN IT WAS ON TUESDAY. MARINERS COULD EXPECT EXERCISE CAUTION LEVEL WINDS...EINFSPECIALLY OVER THE APALACHEE BAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... RAIN CHANCES WILL GRADUALLY RETURN TO MORE TYPICAL VALUES THURSDAY THROUGH FRIDAY WITH A MODEST INCREASE SATURDAY AND ESPECIALLY SUNDAY...BUT WITH LITTLE CHANCE OF WIDESPREAD OR ORGANIZED HAZARDOUS WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA OF INTEREST ON THE NATIONAL MAP. BLOCK/VICKERY
The Tallahassee radar (KTLH), 69 km away, was scanning. The volume nearest the first event began at 10:58 UTC.
7 heavy rain, 1 flash flood. Local standard time, as filed.
A 24 hour total of 4.35 inches of rain was reported just NNW of Boston. Most of the rain fell within a few hours during the evening.
WCTV relayed a viewer report of 5.50 inches of rain in slightly less than 2 hours in Pine Park.
WCTV relayed a viewer report of 6.50 inches of rain in a roughly 3 hour period on Summerhill Road in Thomasville.
WCTV relayed a viewer report of 5.50 inches of rain in east Thomasville in less than 3 hours.
The USGS river gauge located along the Ochlockonee River northwest of Thomasville measured 6.15 inches of rain in a 3 hour period with 4.23 inches falling in just 1 hour.
WCTV relayed a viewer report of 3.50 inches of rain on the north side of Cairo in a roughly 3 hour period.
WCTV relayed a viewer report of 5.00 inches of rain in a little over 3 hours on Pierce Chapel Road between Cairo and Thomasville.
Significant flash flooding occurred in Thomasville. Between 5 and 8 roads were closed in Thomasville due to high water with cars submerged in many areas. Water was up to the car bumpers on Walcott and Young Streets with some basements flooding as well. The Days Inn located near the intersection of the Thomasville Bypass and E Jackson Street had water in the first floor rooms with a water mark around 2 feet high. Radar estimates and rain gauge measurements indicate that between 5 and 7 inches of rain fell in around a 3 hour period with over 4 inches of rain falling in just one hour northwest of town. A 12 year old boy was sucked into a manhole on Remington Avenue and required hospitalization. Monetary damage was estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2012Every state in 2012This day in weather historyWarnings in Georgia, June 2012
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: 375149, 375026, 375029, 375030, 375031, 375027, 375028, 375032.