Alert archive / Alabama / Flash Flood Watches in 2012

Flash Flood Watch 2, NWS Huntsville, AL

January 25, 201211 counties in Alabama; Franklin County, Lincoln County, Moore County, Tennessee

NWS Huntsville, AL issued this flash flood watch at Jan 25, 2012, 4:47 AM CST for 11 counties in Alabama; Franklin County, Lincoln County, Moore County, Tennessee. It took effect at Jan 26, 2012, 6:00 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jan 25, 2012, 4:47 AM CST (10:47 UTC)
In effect from
Jan 26, 2012, 6:00 AM CST
Expired
Jan 26, 2012, 1:05 PM CST
In force
7 hr
Issued by
NWS Huntsville, AL
Flood severity
None

Counties Colbert County, AL, Cullman County, AL, DeKalb County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL, Franklin County, TN, Lincoln County, TN, Moore County, TN

The radar

The Northeast Alabama radar (KHTX), 69 km from the middle of the area, began a volume at 10:50 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, 10.8 hours before the alert went out and 159 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2012-01-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2012-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -53 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1906 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-53 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

639 
WGUS64 KHUN 251047
FFAHUN

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE HUNTSVILLE AL
447 AM CST WED JAN 25 2012

...POTENTIAL FOR HEAVY RAINFALL WILL ELEVATE FLASH FLOODING THREAT ON
THURSDAY...

ALZ001>005-007-016-251900-
/O.NEW.KHUN.FF.A.0002.120126T1200Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
447 AM CST WED JAN 25 2012

...FLASH FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL ALABAMA AND 
  NORTHWEST ALABAMA...INCLUDING THE FOLLOWING AREAS...IN NORTH 
  CENTRAL ALABAMA...CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST 
  ALABAMA...COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE. 

* FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON

* SHOWERS AND SCATTERED THUNDERSTORMS...SOME OF WHICH MAY BE
  HEAVY...WILL MOVE INTO NORTHWEST AND NORTH CENTRAL ALABAMA ON
  THURSDAY MORNING AND CONTINUE INTO THE AFTERNOON. WIDESPREAD
  RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED...WITH LOCALLY
  HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR. DUE TO ELEVATED SOIL
  MOISTURE CONDITIONS FROM RECENT HEAVY RAINFALL...THE THREAT FOR
  FLASH FLOODING WILL BE ELEVATED ON THURSDAY.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING IN URBAN AND
  POORLY DRAINED AREAS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

ALZ006-008>010-TNZ076-096-097-251900-
/O.NEW.KHUN.FF.A.0002.120126T1800Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
447 AM CST WED JAN 25 2012

...FLASH FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF ALABAMA AND SOUTHERN MIDDLE 
  TENNESSEE...INCLUDING THE FOLLOWING AREAS...IN ALABAMA... 
  DEKALB...JACKSON...MADISON AND MARSHALL. IN SOUTHERN MIDDLE 
  TENNESSEE...FRANKLIN TN...LINCOLN AND MOORE. 

* FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING

* SHOWERS AND SCATTERED THUNDERSTORMS...SOME OF WHICH MAY BE
  HEAVY...WILL MOVE INTO NORTHEASTERN ALABAMA AND SOUTHERN MIDDLE
  TENNESSEE BY THURSDAY AFTERNOON AND CONTINUE INTO THE EVENING.
  WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE
  EXPECTED...WITH LOCALLY HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR.
  DUE TO ELEVATED SOIL MOISTURE CONDITIONS FROM RECENT HEAVY
  RAINFALL...THE THREAT FOR FLASH FLOODING WILL BE ELEVATED ON
  THURSDAY AFTERNOON AND EVENING.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING IN URBAN AND
  POORLY DRAINED AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

KDW
5 follow-up statements
925 
WGUS64 KHUN 251850
FFAHUN

FLOOD WATCH
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1250 PM CST WED JAN 25 2012

...POTENTIAL FOR HEAVY RAINFALL WILL ELEVATE FLASH FLOODING
THREAT ON THURSDAY...

ALZ001>005-007-016-260300-
/O.CON.KHUN.FF.A.0002.120126T1200Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
1250 PM CST WED JAN 25 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY AFTERNOON...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTH CENTRAL ALABAMA AND NORTHWEST ALABAMA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL ALABAMA... 
  CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST ALABAMA... 
  COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE. 

* FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON

* SHOWERS AND SCATTERED THUNDERSTORMS...SOME OF WHICH MAY BE
  HEAVY...WILL MOVE INTO NORTHWEST AND NORTH CENTRAL ALABAMA ON
  THURSDAY MORNING AND CONTINUE INTO THE AFTERNOON. WIDESPREAD
  RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED...WITH LOCALLY
  HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR. DUE TO ELEVATED SOIL
  MOISTURE CONDITIONS FROM RECENT HEAVY RAINFALL...THE THREAT FOR
  FLASH FLOODING WILL BE ELEVATED ON THURSDAY.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA 
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING IN URBAN 
  AND POORLY DRAINED AREAS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

ALZ006-008>010-TNZ076-096-097-260300-
/O.CON.KHUN.FF.A.0002.120126T1800Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
1250 PM CST WED JAN 25 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF ALABAMA AND SOUTHERN MIDDLE TENNESSEE...INCLUDING 
  THE FOLLOWING AREAS...IN ALABAMA...DEKALB...JACKSON...MADISON 
  AND MARSHALL. IN SOUTHERN MIDDLE TENNESSEE...FRANKLIN TN... 
  LINCOLN AND MOORE. 

* FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING

* SHOWERS AND SCATTERED THUNDERSTORMS...SOME OF WHICH MAY BE 
  HEAVY...WILL MOVE INTO NORTHEASTERN ALABAMA AND SOUTHERN 
  MIDDLE TENNESSEE BY THURSDAY AFTERNOON AND CONTINUE INTO THE 
  EVENING. WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE 
  EXPECTED...WITH LOCALLY HIGHER AMOUNTS WHERE THUNDERSTORMS 
  OCCUR. DUE TO ELEVATED SOIL MOISTURE CONDITIONS FROM RECENT 
  HEAVY RAINFALL...THE THREAT FOR FLASH FLOODING WILL BE 
  ELEVATED ON THURSDAY AFTERNOON AND EVENING. 

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA 
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING IN URBAN 
  AND POORLY DRAINED AREAS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
120 
WGUS64 KHUN 260300
FFAHUN

FLOOD WATCH
NATIONAL WEATHER SERVICE HUNTSVILLE AL
900 PM CST WED JAN 25 2012

...POTENTIAL FOR HEAVY RAINFALL WILL ELEVATE FLASH FLOODING THREAT ON
THURSDAY...

ALZ001>005-007-016-261230-
/O.CON.KHUN.FF.A.0002.120126T1200Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
900 PM CST WED JAN 25 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 6 AM CST THURSDAY
THROUGH THURSDAY AFTERNOON...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTH CENTRAL ALABAMA AND NORTHWEST ALABAMA...
  INCLUDING THE FOLLOWING COUNTIES...IN NORTH CENTRAL ALABAMA...
  CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST ALABAMA...
  COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE.

* FROM 6 AM CST THURSDAY THROUGH 6 PM CST THURSDAY

* SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY PRODUCE HEAVY
  RAINFALL...WILL MOVE INTO NORTHWEST AND NORTH CENTRAL ALABAMA ON
  THURSDAY MORNING AND CONTINUE INTO THE AFTERNOON. WIDESPREAD
  RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED...WITH LOCALLY
  HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR. DUE TO ELEVATED SOIL
  MOISTURE CONDITIONS FROM RECENT HEAVY RAINFALL...THE THREAT FOR
  FLASH FLOODING WILL BE ELEVATED ON THURSDAY.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING...ESPECIALLY
  IN URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO
FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

ALZ006-008>010-TNZ076-096-097-261230-
/O.CON.KHUN.FF.A.0002.120126T1800Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
900 PM CST WED JAN 25 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTH CENTRAL AND NORTHEAST ALABAMA AND SOUTHERN MIDDLE
  TENNESSEE...INCLUDING THE FOLLOWING COUNTIES...IN ALABAMA...
  DEKALB...JACKSON...MADISON AND MARSHALL. IN SOUTHERN MIDDLE
  TENNESSEE...FRANKLIN TN...LINCOLN AND MOORE.

* FROM 12 PM CST THURSDAY THROUGH 12 AM CST FRIDAY

* SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY PRODUCE HEAVY
  RAINFALL...WILL MOVE INTO NORTHEASTERN ALABAMA AND SOUTHERN
  MIDDLE TENNESSEE BY THURSDAY AFTERNOON AND CONTINUE INTO THE
  EVENING. WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE
  EXPECTED...WITH LOCALLY HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR.
  DUE TO ELEVATED SOIL MOISTURE CONDITIONS FROM RECENT HEAVY
  RAINFALL...THE THREAT FOR FLASH FLOODING WILL BE ELEVATED ON
  THURSDAY AFTERNOON AND EVENING.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING...ESPECIALLY
  IN URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO
FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

70/DD
621 
WGUS64 KHUN 261222
FFAHUN

FLOOD WATCH
NATIONAL WEATHER SERVICE HUNTSVILLE AL
622 AM CST THU JAN 26 2012

...POTENTIAL FOR HEAVY RAINFALL WILL ELEVATE THE FLASH FLOODING
THREAT TODAY...

ALZ001>005-007-016-261900-
/O.CON.KHUN.FF.A.0002.000000T0000Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
622 AM CST THU JAN 26 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTH CENTRAL ALABAMA AND NORTHWEST ALABAMA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL ALABAMA... 
  CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST ALABAMA... 
  COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE. 

* UNTIL 6 PM CST THIS EVENING

* SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY PRODUCE HEAVY
  RAINFALL...WILL MOVE INTO NORTHWEST AND NORTH CENTRAL ALABAMA THIS
  MORNING AND CONTINUE INTO THE AFTERNOON. WIDESPREAD RAINFALL
  AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED...WITH LOCALLY HIGHER
  AMOUNTS WHERE THUNDERSTORMS OCCUR. DUE TO RELATIVELY HIGH SOIL
  MOISTURE FROM RECENT HEAVY RAINFALL...THE THREAT FOR FLASH
  FLOODING WILL BE ELEVATED TODAY.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA 
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING... 
  ESPECIALLY IN URBAN AREAS AND LOCATIONS WITH NORMALLY POOR 
  DRAINAGE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

ALZ006-008>010-TNZ076-096-097-261900-
/O.CON.KHUN.FF.A.0002.120126T1800Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
622 AM CST THU JAN 26 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM NOON CST TODAY
THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF ALABAMA AND SOUTHERN MIDDLE TENNESSEE...INCLUDING 
  THE FOLLOWING AREAS...IN ALABAMA...DEKALB...JACKSON...MADISON 
  AND MARSHALL. IN SOUTHERN MIDDLE TENNESSEE...FRANKLIN TN... 
  LINCOLN AND MOORE. 

* FROM NOON CST TODAY THROUGH THIS EVENING

* SHOWERS AND THUNDERSTORMS...SOME OF WHICH MAY PRODUCE HEAVY
  RAINFALL...WILL MOVE INTO NORTHEASTERN ALABAMA AND SOUTHERN MIDDLE
  TENNESSEE BY THIS AFTERNOON AND CONTINUE INTO THE EVENING.
  WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE
  EXPECTED...WITH LOCALLY HIGHER AMOUNTS WHERE THUNDERSTORMS OCCUR.
  DUE TO RELATIVELY HIGH SOIL MOISTURE FROM RECENT HEAVY
  RAINFALL...THE THREAT FOR FLASH FLOODING WILL BE ELEVATED THIS
  AFTERNOON AND EVENING.

* RAPID RUNOFF MAY LEAD TO SIGNIFICANT PONDING OF WATER ON AREA 
  ROADWAYS AND INCREASED POTENTIAL FOR FLASH FLOODING... 
  ESPECIALLY IN URBAN AREAS AND LOCATIONS WITH NORMALLY POOR 
  DRAINAGE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

KDW
349 
WGUS64 KHUN 261901
FFAHUN

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE HUNTSVILLE AL
101 PM CST THU JAN 26 2012

...MODERATE TO HEAVY RAINFALL CONTINUES ACROSS MUCH OF THE AREA...

.MODERATE TO OCCASIONALLY HEAVY RAINFALL...DEVELOPING WELL AHEAD OF
A SLOW MOVING COLD FRONT CURRENTLY LOCATED ACROSS WESTERN MISSISSIPPI
AND SOUTHEAST LOUISIANA...IS EXPECTED TO CONTINUE THROUGH THE
REMAINDER OF THE AFTERNOON PERIOD. WITH SEVERAL CREEKS...STREAMS AND
SIDE DITCHES NEARLY FULL...ANY ADDITIONAL RAINFALL MAY LEAD TO MINOR
FLOODING ON SOME AREA ROADS AND LOW LYING AREAS.

ALZ001>005-007-016-270000-
/O.CAN.KHUN.FF.A.0002.000000T0000Z-120127T0000Z/
/O.NEW.KHUN.FA.A.0001.120126T1901Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
101 PM CST THU JAN 26 2012

...FLOOD WATCH IN EFFECT UNTIL 6 PM CST THIS EVENING...
...FLASH FLOOD WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL ALABAMA AND 
  NORTHWEST ALABAMA...INCLUDING THE FOLLOWING AREAS...IN NORTH 
  CENTRAL ALABAMA...CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST 
  ALABAMA...COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE. 

* UNTIL 6 PM CST THIS EVENING

* SHOWERS...SOME OF WHICH MAY PRODUCE HEAVY RAINFALL...WILL CONTINUE
  TO MOVE EASTWARD ACROSS MUCH OF NORTHWEST AND NORTH CENTRAL ALABAMA
  THROUGH THE AFTERNOON PERIOD. WIDESPREAD RAINFALL AMOUNTS OF ONE TO
  TWO INCHES ARE EXPECTED...WITH LOCALLY HIGHER AMOUNTS POSSIBLE IN
  AREAS WHICH RECEIVE MULTIPLE ROUNDS OF RAINFALL. DUE TO RELATIVELY
  HIGH SOIL MOISTURE FROM RECENT HEAVY RAINFALL...THE THREAT OF AREAL
  FLOODING IS POSSIBLE THROUGH 6 PM...ALTHOUGH THE THREAT OF FLASH
  HAS DIMINISHED WITH ANY THUNDERSTORM ACTIVITY OCCURRING WELL SOUTH
  AND EAST OF THE AREA.

* RAPID RUNOFF FROM THE RAINFALL MAY LEAD TO PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR AREAL FLOODING...ESPECIALLY IN
  URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE...ALONG WITH
  AREAS NEAR LOCAL RIVERS...CREEKS OR STREAMS WITH ELEVATED STAGES.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

THE FLASH FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL ALABAMA AND
NORTHWEST ALABAMA HAS BEEN CANCELLED WITH THE THREAT OF STRONG
THUNDERSTORMS NO LONGER ANTICIPATED.

$$

ALZ006-008>010-TNZ076-096-097-270300-
/O.CAN.KHUN.FF.A.0002.000000T0000Z-120127T0600Z/
/O.NEW.KHUN.FA.A.0001.120126T1901Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
101 PM CST THU JAN 26 2012

...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...FLASH FLOOD WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF ALABAMA AND SOUTHERN MIDDLE 
  TENNESSEE...INCLUDING THE FOLLOWING AREAS...IN ALABAMA... 
  DEKALB...JACKSON...MADISON AND MARSHALL. IN SOUTHERN MIDDLE 
  TENNESSEE...FRANKLIN TN...LINCOLN AND MOORE. 

* UNTIL MIDNIGHT CST TONIGHT

* SHOWERS...SOME OF WHICH MAY PRODUCE MODERATE TO HEAVY
  RAINFALL...WILL CONTINUE TO MOVE EASTWARD ACROSS MUCH OF NORTHEAST
  ALABAMA ALONG WITH PORTIONS OF SOUTHERN MIDDLE TENNESSEE THROUGH
  THE EVENING PERIOD. WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO
  INCHES ARE EXPECTED...WITH LOCALLY HIGHER AMOUNTS POSSIBLE IN AREAS
  WHICH RECEIVE MULTIPLE ROUNDS OF RAINFALL. DUE TO RELATIVELY HIGH
  SOIL MOISTURE FROM RECENT HEAVY RAINFALL...THE THREAT OF AREAL
  FLOODING IS POSSIBLE THROUGH MIDNIGHT...ALTHOUGH THE THREAT OF
  FLASH HAS DIMINISHED WITH MORE OF THE THUNDERSTORM ACTIVITY
  OCCURRING SOUTH OF THE AREA.

* RAPID RUNOFF FROM THE RAINFALL MAY LEAD TO PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR AREAL FLOODING...ESPECIALLY IN
  URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE...ALONG WITH
  AREAS NEAR LOCAL RIVERS...CREEKS OR STREAMS WITH ELEVATED STAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

THE FLASH FLOOD WATCH FOR PORTIONS OF ALABAMA AND SOUTHERN MIDDLE
TENNESSEE HAS BEEN CANCELLED WITH THE THREAT OF THUNDERSTORMS
BECOMING INCREASINGLY UNLIKELY.

$$
078 
WGUS64 KHUN 261910 CCA
FFAHUN

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH...CORRECTED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
105 PM CST THU JAN 26 2012

...MODERATE TO HEAVY RAINFALL CONTINUES ACROSS MUCH OF THE AREA...

.MODERATE TO OCCASIONALLY HEAVY RAINFALL...DEVELOPING WELL AHEAD OF
A SLOW MOVING COLD FRONT CURRENTLY LOCATED ACROSS WESTERN MISSISSIPPI
AND SOUTHEAST LOUISIANA...IS EXPECTED TO CONTINUE THROUGH THE
REMAINDER OF THE AFTERNOON PERIOD. WITH SEVERAL CREEKS...STREAMS AND
SIDE DITCHES NEARLY FULL...ANY ADDITIONAL RAINFALL MAY LEAD TO MINOR
FLOODING ON SOME ROADS IN LOW LYING AREAS.

ALZ001>005-007-016-270000-
/O.CAN.KHUN.FF.A.0002.000000T0000Z-120127T0000Z/
/O.COR.KHUN.FA.A.0001.120126T1905Z-120127T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MORGAN-CULLMAN-
INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS...
RUSSELLVILLE...MOULTON...ATHENS...DECATUR...CULLMAN
105 PM CST THU JAN 26 2012

...FLOOD WATCH IN EFFECT UNTIL 6 PM CST THIS EVENING...
...FLASH FLOOD WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL ALABAMA AND
  NORTHWEST ALABAMA...INCLUDING THE FOLLOWING AREAS...IN NORTH
  CENTRAL ALABAMA...CULLMAN...LIMESTONE AND MORGAN. IN NORTHWEST
  ALABAMA...COLBERT...FRANKLIN AL...LAUDERDALE AND LAWRENCE.

* UNTIL 6 PM CST THIS EVENING

* SHOWERS...SOME OF WHICH MAY PRODUCE HEAVY RAINFALL...WILL CONTINUE
  TO MOVE EASTWARD ACROSS MUCH OF NORTHWEST AND NORTH CENTRAL ALABAMA
  THROUGH THE AFTERNOON PERIOD. WIDESPREAD RAINFALL AMOUNTS OF ONE TO
  TWO INCHES ARE EXPECTED...WITH LOCALLY HIGHER AMOUNTS POSSIBLE IN
  AREAS WHICH RECEIVE MULTIPLE ROUNDS OF RAINFALL. DUE TO RELATIVELY
  HIGH SOIL MOISTURE FROM RECENT HEAVY RAINFALL...THE THREAT OF AREAL
  FLOODING IS POSSIBLE THROUGH 6 PM...ALTHOUGH THE THREAT OF FLASH
  FLOODING HAS DIMINISHED WITH ANY THUNDERSTORM ACTIVITY OCCURRING
  WELL SOUTH AND EAST OF THE AREA.

* RAPID RUNOFF FROM THE RAINFALL MAY LEAD TO PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR AREAL FLOODING...ESPECIALLY IN
  URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE...ALONG WITH
  AREAS NEAR LOCAL RIVERS...CREEKS OR STREAMS WITH ELEVATED STAGES.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

THE FLASH FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL ALABAMA AND
NORTHWEST ALABAMA HAS BEEN CANCELLED WITH THE THREAT OF STRONG
THUNDERSTORMS NO LONGER ANTICIPATED.

$$

ALZ006-008>010-TNZ076-096-097-270315-
/O.CAN.KHUN.FF.A.0002.000000T0000Z-120127T0600Z/
/O.COR.KHUN.FA.A.0001.120126T1905Z-120127T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON-MARSHALL-JACKSON-DEKALB-MOORE-LINCOLN-FRANKLIN TN-
INCLUDING THE CITIES OF...HUNTSVILLE...GUNTERSVILLE...
SCOTTSBORO...FORT PAYNE...LYNCHBURG...FAYETTEVILLE...WINCHESTER
105 PM CST THU JAN 26 2012

...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...FLASH FLOOD WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF ALABAMA AND SOUTHERN MIDDLE
  TENNESSEE...INCLUDING THE FOLLOWING AREAS...IN ALABAMA...
  DEKALB...JACKSON...MADISON AND MARSHALL. IN SOUTHERN MIDDLE
  TENNESSEE...FRANKLIN TN...LINCOLN AND MOORE.

* UNTIL MIDNIGHT CST TONIGHT

* SHOWERS...SOME OF WHICH MAY PRODUCE MODERATE TO HEAVY
  RAINFALL...WILL CONTINUE TO MOVE EASTWARD ACROSS MUCH OF NORTHEAST
  ALABAMA ALONG WITH PORTIONS OF SOUTHERN MIDDLE TENNESSEE THROUGH
  THE EVENING PERIOD. WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO
  INCHES ARE EXPECTED...WITH LOCALLY HIGHER AMOUNTS POSSIBLE IN AREAS
  WHICH RECEIVE MULTIPLE ROUNDS OF RAINFALL. DUE TO RELATIVELY HIGH
  SOIL MOISTURE FROM RECENT HEAVY RAINFALL...THE THREAT OF AREAL
  FLOODING IS POSSIBLE THROUGH MIDNIGHT...ALTHOUGH THE THREAT OF
  FLASH FLOODING HAS DIMINISHED WITH MORE OF THE THUNDERSTORM
  ACTIVITY OCCURRING SOUTH OF THE AREA.

* RAPID RUNOFF FROM THE RAINFALL MAY LEAD TO PONDING OF WATER ON AREA
  ROADWAYS AND INCREASED POTENTIAL FOR AREAL FLOODING...ESPECIALLY IN
  URBAN AREAS AND LOCATIONS WITH NORMALLY POOR DRAINAGE...ALONG WITH
  AREAS NEAR LOCAL RIVERS...CREEKS OR STREAMS WITH ELEVATED STAGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

THE FLASH FLOOD WATCH FOR PORTIONS OF ALABAMA AND SOUTHERN MIDDLE
TENNESSEE HAS BEEN CANCELLED WITH THE THREAT OF THUNDERSTORMS
BECOMING INCREASINGLY UNLIKELY.

$$

What forecasters said that day

The local office's own words before this flash flood watch 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 watch went out at Jan 25, 4:25 AM CST, 22 minutes earlier.

Area forecast discussion, Jan 25, 4:25 AM CST, 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
425 AM CST WED JAN 25 2012

.DISCUSSION...
THE PRIMARY CONCERN OVER THE NEXT SEVERAL DAYS WILL BE FLASH
FLOODING AND LONGER TERM RIVER FLOODING IF THE CURRENT EXPECTED
SCENARIO PLAYS OUT. WILL BE ISSUING A FLASH FLOOD WATCH WITH THE
MORNING FCST PACKAGE. WHILE THE SFC LOW MAY TRACK JUST TO OUR
NORTH...FCST SHEAR AND INSTABILITY PROFILES DO NOT APPEAR
PARTICULARLY IMPRESSIVE AT THIS TIME. NEVERTHELESS...WILL BE
WATCHING THE EVOLUTION OF THE SFC LOW AND LOW-LVL WIND FIELD FOR
CHANGES. FOR THE WEEKEND...A COOLER AIRMASS WILL BE MOVING BACK INTO
THE REGION BUT WILL STILL NOT BE PARTICULARLY COLD FOR LATE JAN.
DETAILS BELOW.

EARLY MORNING ANALYSIS SHOWS A PARTIALLY CLOSED UPR LOW MOVING EWRD
ACROSS THE BIG BEND AREA OF TX. AHEAD OF THIS FEATURE...DEEP
CONVECTION AND STRATIFORM RAIN HAS DEVELOPED ACROSS A LARGE PORTION
OF THE SOUTHERN PLAINS. A SFC LOW AHEAD OF THE UPR LOW WAS LOCATED
IN SOUTH CENTRAL TX AND WILL GRADUALLY TRACK NEWD...APPROACHING THE
TN VALLEY REGION BY THURS MORNING. WELL TO THE NE OF THE SFC LOW...A
WARM FRONT WAS PUSHING NWD INTO CENTRAL/NORTHERN MISS AND AL.
REGIONAL RADARS WERE INDICATING MAINLY LGT RAIN WITH A FEW EMBEDDED
AND VERY SMALL HVY SHOWERS ASSOCIATED WITH THE WARM FRONT. FURTHER
ENHANCEMENT OF ISENTROPIC LIFT IS PROGGED AS THE WARM FRONT
CONTINUES TO MOVE NWD ACROSS OUR FCST AREA THIS MORNING. THUS...A
GRADUAL INCREASE IN THE COVERAGE OF RAIN/SHOWERS IS EXPECTED. POPS
HAVE BEEN INCREASED DUE TO THESE LATEST TRENDS AND WERE KEPT HIGHER
IN THE WEST WHERE THE COMBINATION OF LIFT/MOISTURE ADVECTION WILL
LIKELY BE STRONGER. HOWEVER...NOT EXPECTING MUCH RAINFALL WITH THIS
INITIAL PUSH OF MOISTURE...WITH AMOUNTS ARND A QUARTER INCH OR LESS
EXPECTED.

THE RAIN WILL TAPER OFF GRADUALLY THIS AFTERNOON AS THE WARM FRONT
PUSHES NWD AND THE AREA OF BEST LIFT BECOMES INCREASINGLY SHALLOW
AND ELEVATED. TEMPS MAY MANAGE TO CLIMB INTO THE 60S AT MANY
LOCATIONS THIS AFTERNOON...BUT DUE TO THE CLOUDS/SHOWERS AND A
PREDOMINANT ERLY SFC FLOW REGIME...WILL KEEP VALUES BELOW MOS FOR
THE MOST PART.

SHORT WAVE MINIMA AHEAD OF THE MAIN UPR LOW MAY SPARK A FEW SHOWERS
DURING THIS EVENING AND INTO THE OVERNIGHT PERIOD. HOWEVER...THE
MAIN SHIELD OF HVY RAIN AND EMBEDDED THUNDERSTORMS WILL PROBABLY NOT
BEGIN TO ENTER NW ALABAMA UNTIL ARND SUNRISE THURSDAY OR SHORTLY
THEREAFTER. FCST BUFR SOUNDINGS AND THERMAL/MOISTURE ADVECTION
PROFILES INDICATE SUFFICIENT INSTABILITY FOR TSRA PERHAPS AS EARLY
AS 12Z IN NW ALABAMA. THIS WILL GRADUALLY SPREAD EWRD AS THE SFC AND
UPR LOW SWING NEWD INTO THE LOWER MISS AND THEN THE TN VALLEY
REGIONS DURING THE DAY. PW VALUES WILL BE QUITE HIGH (~1.4 TO 1.5
INCHES)...ARND THE 99TH PCTILE FOR THIS TIME OF YEAR. A CHECK OF
SOIL MOISTURE VALUES PER THE USDA SCAN SITES AND THE NASA LIS 1KM
MODEL OVER NRN AL SHOWS VALUES ARE STILL VERY ELEVATED...WHICH WILL
EXACERBATE THE FLASH FLOODING THREAT. SINCE THIS MAY BE THE MOST
IMPACTFUL ASPECT OF THIS EVENT AND THE FLASH FLOODING CONCERNS ARE
EVIDENT...HAVE GONE AHEAD AND ISSUED A FLASH FLOOD WATCH FOR THE
ENTIRE AREA. THE WATCH HAS BEEN SPLIT BETWEEN WEST AND
EAST...BEGINNING AT 12Z IN THE WEST AND 18Z IN THE EAST ON THURS AND
LASTING FOR 12 HOURS IN EACH AREA. WIDESPREAD ONE TO TWO INCH
RAINFALL APPEARS PROBABLE AND CONVECTIVE ENHANCEMENT WILL LIKELY
LEAD TO LOCALLY HIGHER AMOUNTS.

THE TRACK OF THE SFC LOW WILL FACTOR LARGELY INTO THE RESULTANT
SHEAR AND INSTABILITY ACROSS THE AREA. CURRENTLY...AM FAVORING A
TRACK DIRECTLY ACROSS OR PERHAPS JUST NORTH OF OUR CWA. THIS WILL
HELP TO MAXIMIZE THE SHEAR/INSTABILITY FROM THE MORE SOUTHERLY
SCENARIO DEPICTED BY THE GFS. HOWEVER...AS WAS STATED ABOVE THESE
VALUES DO NOT LOOK OVERLY IMPRESSIVE SO FAR. THE SHEAR MAY BE
SUFFICIENT TO ALLOW FOR SOME STORM ORGANIZATION AND
MAINTENANCE...BUT THE OVERALL THREAT FOR SVR WEATHER STILL LOOKS
SLIGHT ATTM.

THE RAINFALL WILL TAPER OFF IN THE WEST BY THE EARLY EVENING AND IN
THE EAST BY ABOUT MIDNIGHT. DUE TO LINGERING UNCERTAINTY IN THE
TIMING THOUGH...WILL STILL CARRY MENTION OF SHOWERS INTO THE
OVERNIGHT PERIOD. IN REALITY THOUGH...THE PRECIP MAY BE MORE LIKELY
TO MOVE OFF QUICKLY BEHIND THE FRONT.

THE FLASH FLOODING THREAT WILL END BY OR DURING THE NIGHTTIME ACROSS
THE AREA...BUT WILL GRADUALLY TRANSITION INTO A RIVER FLOODING
THREAT INTO THE WEEKEND. KEEP ABREAST OF THE LATEST RIVER FORECASTS
AS RAINFALL AMOUNTS BECOME MORE FINELY TUNED.

THE INITIAL AIRMASS BEHIND THE LOW PRESSURE IS MODIFIED PACIFIC IN
ORIGIN AND WILL BE COOLER...BUT NOT PARTICULARLY COLD.
NEVERTHELESS...LOW TEMPS MAY MANAGE TO FALL TO ARND FREEZING BY SAT
MORNING. AS THE PATTERN BECOMES SLIGHTLY MORE AMPLIFIED ESPECIALLY
IN THE EAST BY LATE SATURDAY...ANOTHER SHOT OF COOL AIR WILL ENTER
THE TN VALLEY. LOWS AGAIN ON SUN AND MONDAY MORNING MAY FALL BELOW
FREEZING INTO THE MID/UPR 20S AT MANY LOCATIONS. BUT...IT STILL
COULD BE A LOT COLDER FOR LATE JAN. HIGHS DURING THE WEEKEND WITH
GENERALLY ABUNDANT SUNSHINE (MAINLY HIGH THIN CLOUDS) WILL LIKELY BE
IN THE UPR 40S TO UPR 50S.

A MODERATING TREND IS EXPECTED NEXT WEEK AS THE UPR FLOW PATTERN
BECOMES MORE ZONAL AGAIN ACROSS THE CONUS.

KDW

&&

.AVIATION...
/ISSUED 1109 PM CST TUE JAN 24 2012/
FOR 06Z TAFS...UPPER LOW OVER WRN TX HAS NOT MOVE MUCH SINCE THE 00Z
TAF ISSUANCE...BUT CONTINUES TO PUSH CI CLOUDS INTO THE TN VALLEY.
NEW MODEL DATA KEEP THE ATMOSPHERE FAIRLY DRY WHICH WILL DELAY THE
CHC OF SHRA ACROSS THE CWA UNTIL ARND 18Z WEDNESDAY AFTN. NAM EVEN
HINTS THAT ANY PCPN WILL BE VERY SCT ACROSS THE CWA ON WEDNESDAY.
ATTM WILL GO WITH VCSH FOR TAFS BETWEEN 18Z AND 00Z. OTHERWISE VFR
CONDITIONS ARE EXPECTED AT BOTH TAFS UNTIL ARND 00Z...AFTER 00Z
EXPECT MVFR CONDITIONS.

99

&&

.PRELIMINARY POINT TEMPS/POPS...
HUNTSVILLE    63  54  68  46  56 /  60  70 100  90  10
SHOALS        62  55  69  42  56 /  80  80 100  80   0
VINEMONT      65  56  67  44  55 /  60  70 100  90  10
FAYETTEVILLE  59  54  66  43  54 /  70  70 100  90  10
ALBERTVILLE   63  53  66  46  57 /  50  50 100 100  10
FORT PAYNE    62  53  66  48  55 /  40  50 100 100  10

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...FLASH FLOOD WATCH FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING
     FOR THE FOLLOWING ZONES: ALZ006-008>010.

     FLASH FLOOD WATCH FROM THURSDAY MORNING THROUGH THURSDAY AFTERNOON
     FOR THE FOLLOWING ZONES: ALZ001>005-007-016.

TN...FLASH FLOOD WATCH FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING
     FOR THE FOLLOWING ZONES: TNZ076-096-097.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.
Hazardous weather outlook, Jan 25, 4:47 AM CST, 0 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
447 AM CST WED JAN 25 2012

ALZ001>010-016-TNZ076-096-097-251900-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
447 AM CST WED JAN 25 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT...

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

RAIN SHOWERS MAY INCLUDE A FEW EMBEDDED THUNDERSTORMS LATE
TONIGHT...MAINLY ACROSS NORTHWEST ALABAMA INTO SOUTHERN MIDDLE
TENNESSEE. LOCALLY HEAVY DOWNPOURS MAY RESULT...ALTHOUGH SUSTAINED
HEAVIER RAINFALL IS EXPECTED LATER ON THURSDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

LOCALLY HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING WILL
INCREASE AGAIN ON THURSDAY AS A LOW PRESSURE SYSTEM NOW IN TEXAS
MOVES NORTHEAST THROUGH THE REGION. RAINFALL AMOUNTS OF ONE TO THREE
INCHES ARE FORECAST...WITH LOCALLY HIGHER AMOUNTS POSSIBLE...SOME
FALLING IN A SHORT PERIOD OF TIME. RUNOFF OF THIS RAINFALL INTO
ALREADY SWOLLEN RIVERS AND STREAMS WILL LIKELY CAUSE MANY TO GO INTO
FLOOD FROM FRIDAY INTO EARLY THIS WEEKEND. AT THIS TIME...MINOR TO
MODERATE FLOODING IS ANTICIPATED. INTERESTS ON LOCAL AREA RIVERS AND
STREAMS SHOULD MONITOR LATER FORECASTS AND POSSIBLE RIVER FLOOD
WARNINGS.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL MAY
BE NEEDED BY WEDNESDAY NIGHT THROUGH EARLY FRIDAY DUE TO THE EXPECTED
HEAVY RAINFALL AND INCREASED FLOODING POTENTIAL.

Nearby

Flash Flood Watches in Alabama, 2012Flash Flood Watches in Tennessee, 2012Every flash flood watch in 2012

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.