Alert archive / Tennessee / Flash Flood Warnings in 2009
Flash Flood Warning 79, NWS Huntsville, AL
NWS Huntsville, AL issued this flash flood warning at Sep 20, 2009, 8:09 PM CDT for Madison County, Alabama; Franklin County, Lincoln County, Moore County, Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2009, 8:09 PM CDT (01:09 UTC)
- Expired
- Sep 20, 2009, 11:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Madison County, AL, Franklin County, TN, Lincoln County, TN, Moore County, TN
The radar
The Northeast Alabama radar (KHTX), 33 km from the middle of the area, began a volume at 01:13 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, 1.2 hours before the alert went out and 118 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
- 1869 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 516 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 99 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 Sep 20, 6:53 PM CDT, 1 hour 16 minutes earlier.
Area forecast discussion, Sep 20, 6:53 PM CDT, 1 hour 16 minutes before
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</html>Hazardous weather outlook, Sep 20, 12:56 PM CDT, 7 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 1256 PM CDT SUN SEP 20 2009 ALZ001>010-016-TNZ076-096-097-211000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 1256 PM CDT SUN SEP 20 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS AFTERNOON INTO THE EARLY EVENING HOURS. SOME THUNDERSTORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL...FREQUENT LIGHTNING...AND GUSTY WINDS. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF NORTHERN ALABAMA AND SOUTHERN MIDDLE TENNESSEE TODAY. RAINFALL AMOUNTS AROUND ONE TO TWO INCHES WILL COMBINE WITH AN ALREADY SATURATED GROUND TO PRODUCE A HEIGHTENED THREAT FOR LOCALIZED FLASH FLOODING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... AN UNSETTLED WEATHER PATTERN WILL CONTINUE THIS WEEK AS A MOIST AND UNSTABLE AIRMASS REMAINS IN PLACE OVER THE AREA. THOUGH WIDESPREAD FLOODING IS NOT ANTICIPATED...HEAVY RAINFALL AND LOCALIZED FLOODING CANNOT BE RULED OUT. ISOLATED TO SCATTERED THUNDERSTORMS ARE ALSO POSSIBLE THROUGH THE PERIOD...WITH THE STRONGER STORMS CAPABLE OF PRODUCING FREQUENT LIGHTNING AND GUSTY WINDS. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. SPOTTERS AND EMERGENCY MANAGERS ARE STRONGLY ENCOURAGED TO PROVIDE REPORTS OF FLASH FLOODING OR CLOSED ROADS TO THE NATIONAL WEATHER SERVICE. KDW
In the hours before
Special weather statement, Sep 20, 5:12 PM CDT, 2 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 512 PM CDT SUN SEP 20 2009 ALZ001-202300- LAUDERDALE- 512 PM CDT SUN SEP 20 2009 ...SIGNIFICANT WEATHER ALERT FOR LAUDERDALE COUNTY UNTIL 600 PM CDT... AT 510 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR KINGTOWN...OR 15 MILES EAST OF UNDERWOOD-PETERSVILLE...MOVING NORTHEAST AT 20 MPH. WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... LEXINGTON...ANDERSON. RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE FROM THE THUNDERSTORM. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING OF WATER ON AREA ROADWAYS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION.
Special weather statement, Sep 20, 5:42 PM CDT, 2 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 542 PM CDT SUN SEP 20 2009 ALZ005-202330- LIMESTONE- 542 PM CDT SUN SEP 20 2009 ...SIGNIFICANT WEATHER ALERT FOR LIMESTONE COUNTY UNTIL 630 PM CDT... AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ELKMONT...OR 7 MILES NORTH OF ATHENS...MOVING NORTHEAST AT 20 MPH. WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... HOLLAND GIN...BETHEL. ARDMORE. RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE FROM THIS THUNDERSTORM. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING OF WATER ON AREA ROADWAYS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JLL
Special weather statement, Sep 20, 6:10 PM CDT, 1 hour 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 610 PM CDT SUN SEP 20 2009 ALZ004>007-TNZ096-210015- LAWRENCE-LIMESTONE-LINCOLN-MADISON-MORGAN- 610 PM CDT SUN SEP 20 2009 ...SIGNIFICANT WEATHER ALERT FOR LAWRENCE...LIMESTONE...LINCOLN... MADISON AND MORGAN COUNTIES UNTIL 715 PM CDT... AT 609 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING THUNDERSTORMS ALONG A LINE EXTENDING FROM DELLROSE TO WREN...MOVING EAST AT 30 MPH. WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED AS THIS LINE OF STORMS MOVES EAST. PEOPLE IN EASTERN LAWRENCE...LIMESTONE...LINCOLN...NORTHWESTERN MADISON AND WESTERN MORGAN COUNTIES SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE FLASH FLOOD WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD FLASH FLOODING THREATEN. RAINFALL AMOUNTS OF 1 TO 1.5 INCHES ARE POSSIBLE FROM THE THUNDERSTORM. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING OF WATER ON AREA ROADWAYS. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. JLL
Local storm report, Sep 20, 6:49 PM CDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
649 PM CDT SUN SEP 20 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM FLASH FLOOD 6 NW FLORENCE 34.89N 87.74W
09/20/2009 LAUDERDALE AL PUBLIC
CREEKS REPORTED OUT OF THEIR BANKS NEAR THE INTERSECTION
OF COUNTY ROAD 15 AND COUNTY ROAD 157.
0545 PM FLASH FLOOD 6 NW FLORENCE 34.89N 87.74W
09/20/2009 LAUDERDALE AL PUBLIC
WATER OVER ROADWAY NEAR THE INTERSECTION OF COUNTY ROAD 7
AND COUNTY ROAD 157.
0615 PM FLASH FLOOD 2 E KILLEN 34.86N 87.49W
09/20/2009 LAUDERDALE AL PUBLIC
PARKING LOT FLOODED AT THE INTERSECTION OF COUNTY ROAD 31
AND HIGHWAY 72.
&&
JLLSpecial weather statement, Sep 20, 7:16 PM CDT, 53 minutes before
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</html>Special weather statement, Sep 20, 8:02 PM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 802 PM CDT SUN SEP 20 2009 ALZ005-006-009-TNZ076-096-097-210145- FRANKLIN-JACKSON-LIMESTONE-LINCOLN-MADISON-MOORE- 802 PM CDT SUN SEP 20 2009 ...SIGNIFICANT WEATHER ALERT FOR FRANKLIN...JACKSON...LIMESTONE... LINCOLN...MADISON AND MOORE COUNTIES UNTIL 845 PM CDT... AT 800 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING THUNDERSTORMS ALONG A LINE EXTENDING FROM OAK GROVE TO NORMAL...MOVING EAST AT 20 MPH. WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS. PEOPLE IN EASTERN LIMESTONE...FRANKLIN...LINCOLN...MOORE...NORTHERN MADISON AND NORTHWESTERN JACKSON COUNTIES...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE FLASH FLOOD WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD FLASH FLOODING THREATEN. RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE FROM THESE STORMS. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING OF WATER ON AREA ROADWAYS.
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 11:32 AM CDT | Areal Flood Warning | HUN | DeKalb | 4 hr |
| Sep 21, 4:46 PM CDT | Flash Flood Warning | HUN | DeKalb | 112 min |
| Sep 21, 4:59 PM CDT | Areal Flood Warning | HUN | DeKalb | 6 hr |
Nearby
Flash Flood Warnings in Tennessee, 2009Flash Flood Warnings in Alabama, 2009Every flash flood warning in 2009
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.