Alert archive / Alabama / Flash Flood Warnings in 2007
Flash Flood Warning 12, NWS Huntsville, AL
NWS Huntsville, AL issued this flash flood warning at Aug 24, 2007, 11:16 PM CDT for Colbert County, Lauderdale County, Alabama. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 24, 2007, 11:16 PM CDT (04:16 UTC)
- Expired
- Aug 25, 2007, 1:15 AM CDT
- In force
- 119 min
- Issued by
- NWS Huntsville, AL
- Area
- Whole counties
Counties Colbert County, AL, Lauderdale County, AL
The radar
The Columbus AFB radar (KGWX), 115 km from the middle of the area, began a volume at 04:16 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.3 hours before the alert went out and 180 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 143 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 2882 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Aug 24, 8:45 PM CDT, 2 hours 31 minutes earlier.
Area forecast discussion, Aug 24, 8:45 PM CDT, 2 hours 31 minutes before
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE HUNTSVILLE AL 845 PM CDT FRI AUG 24 2007 .MESOSCALE UPDATE... INTERESTING NIGHT ON THE RADAR SCOPE WITH A CLASSIC PULSE STORM ENVIRONMENT. THIS EVENING...SEVERE PULSE STORMS HAVE REMAINED TO OUR N AND SE THUS FAR...BUT THE ENVIRONMENT REMAINS SUPPORTIVE OF DOWNBURST AND HEAT BURST ACTIVITY. BOUNDARY INTERACTIONS HAVE CERTAINLY PLAYED A ROLE IN WHERE STORMS FIRE OFF. THERE HAVE BEEN NUMEROUS SMALL AND LARGER SCALE OUTFLOW BOUNDARIES...TOO NUMEROUS TO COUNT. THE LARGEST BOUNDARY IS NOW ENTERING NE AL...RESULTING FROM THE CLUSTER OF SEVERE STORMS IN NW GA. AN MCS CONTINUES TO PROPAGATE SW INTO EASTERN AL...JUST S OF LOOKOUT MOUNTAIN. THUS FAR...IT HAS JUST CLIPPED SOUTHERN DEKALB COUNTY. KHTX SHOWS THE BOUNDARY REACHING INTO CENTRAL JACKSON AND EASTERN MARSHALL COUNTIES. CANT RULE OUT RE-DEVELOPMENT ALONG THIS...AT LEAST IN THE NEAR TERM. FURTHER W...ANOTHER ARC OF STORMS CONTINUES TO PERCOLATE AND DRIFT N AND NE FROM NE MS THROUGH THE SHOALS INTO SOUTHERN MIDDLE TN...WHERE NEW DEVELOPMENT IS ON AN UPSWING. KOHX SOUNDING AT 00Z CALCULATED A WINDEX OF 63...WHICH WAS CLOSE TO WHAT EARLIER FORECAST SOUNDINGS HAD INDICATED. A MEASURED GUST TO 49KT AT KRNC (MCMINNVILLE TN) OCCURRED AT 0027Z...REFLECTING THE DOWNBURST ENVIRONMENT. WILL EXTEND THE 20 POP THRU 12Z GIVEN ALL THE BOUNDARIES AROUND. IF WE SEE A NOCTURNAL LLJ DEVELOPMENT LIKE WE HAVE SEEN AS OF LATE...THAT MAY HELP TO KICK OFF A FEW STORMS AS WELL. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && KULA
Hazardous weather outlook, Aug 24, 9:08 PM CDT, 2 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 908 PM CDT FRI AUG 24 2007 ALZ001>010-016-TNZ076-096-097-251000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DE KALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 908 PM CDT FRI AUG 24 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TONIGHT... ISOLATED THUNDERSTORMS ARE STILL POSSIBLE OVERNIGHT...MAINLY ACROSS FAR NORTHWEST ALABAMA INTO SOUTHERN MIDDLE TENNESSEE THROUGH MIDNIGHT. THESE STORMS WILL BE CAPABLE OF BRIEF BUT GUSTY WINDS UP TO 45 MPH...HEAVY DOWNPOURS...AND CLOUD TO GROUND LIGHTNING. AN ISOLATED STORM PRODUCING DAMAGING WIND CANNOT BE RULED OUT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE ANTICIPATED OVER THE WEEKEND. ANY STORMS THAT DEVELOP MAY QUICKLY BECOME STRONG...CONTAINING GUSTY WINDS...SMALL HAIL AND BRIEF HEAVY DOWNPOURS. A FEW STORMS COULD PRODUCE DOWNBURSTS CAPABLE OF DAMAGING WINDS. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. KULA
In the hours before
Special weather statement, Aug 24, 9:35 PM CDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 935 PM CDT FRI AUG 24 2007 TNZ097-250315- FRANKLIN- 935 PM CDT FRI AUG 24 2007 ...SIGNIFICANT WEATHER ALERT FOR FRANKLIN COUNTY UNTIL 1015 PM CDT... AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR DECHERD...OR JUST NORTHEAST OF WINCHESTER. THIS STORM WAS NEARLY STATIONARY. WINDS UP TO 50 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... WINCHESTER. EASTERN PORTIONS OF TIMS FORD LAKE. DECHERD. SEEK SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A WARNING IS ISSUED. 27
Special weather statement, Aug 24, 10:13 PM CDT, 1 hour 3 minutes before
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</html>Local storm report, Aug 24, 10:50 PM CDT, 26 minutes before
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</html>Special weather statement, Aug 24, 10:52 PM CDT, 24 minutes before
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</html>The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 12:06 AM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 39 min |
| Aug 25, 12:55 AM CDT | Flash Flood Warning | HUN | Madison | 2 hr |
| Aug 25, 5:17 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 43 min |
| Aug 25, 5:26 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Madison | 34 min |
| Aug 25, 6:03 PM CDT | Severe Thunderstorm Warning | HUN | Lauderdale | 27 min |
| Aug 25, 6:33 PM CDT | Severe Thunderstorm Warning | HUN | Limestone | 27 min |
| Aug 25, 6:59 PM CDT | Severe Thunderstorm Warning | HUN | Limestone | 31 min |
| Aug 24, 9:45 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 45 min |
| Aug 24, 10:25 PM CDT | Flash Flood Warning | HUN | Franklin | 2 hr |
| Aug 24, 10:31 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 44 min |
| Aug 25, 12:21 AM CDT | Flash Flood Warning | HUN | Lincoln | 114 min |
| Aug 25, 12:21 AM CDT | Flash Flood Warning | HUN | Franklin | 114 min |
| Aug 25, 4:57 PM CDT | Severe Thunderstorm Warning | HUN | Lincoln | 33 min |
Nearby
Flash Flood Warnings in Alabama, 2007Every flash flood warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.