Alert archive / Alabama / Flash Flood Warnings in 2012
Flash Flood Warning 39, NWS Huntsville, AL
NWS Huntsville, AL issued this flash flood warning at Sep 17, 2012, 2:16 PM CDT for Colbert County, Lauderdale County, Alabama. It was in force for 5 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 17, 2012, 2:16 PM CDT (19:16 UTC)
- Expired
- Sep 17, 2012, 7:15 PM CDT
- In force
- 5 hr
- Issued by
- NWS Huntsville, AL
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Flood severity
- None
Counties Colbert County, AL, Lauderdale County, AL
The radar
The Columbus AFB radar (KGWX), 121 km from the middle of the area, began a volume at 19:16 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 17, 2:46 PM CDT | FLASH FLOOD | 3 S Florence, AL | AT LEAST 3 FEET OF WATER ESTIMATED OVER LOCATIONS NEAR WOODWARD AVENUE NEAR THE PIZZA HUT. |
| Sep 17, 3:50 PM CDT | FLASH FLOOD | 4 S Florence, AL | FIVE FEET OF WATER WAS COVERING PORTIONS OF THE SOUTHGATE MALL PARKING LOT. ONE CAR AT THIS LOCATION WAS ALMOST COMPLETLY SUBMERGED. |
| Sep 17, 3:52 PM CDT | HEAVY RAIN 4.25 | 4 Sw Threet, AL | 4.25 INCHES OF RAINFALL WAS MEASURED IN 13 HOURS. |
| Sep 17, 4:00 PM CDT | HEAVY RAIN 2.2 | 1 Ene Anderson, AL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.3 hours before the alert went out and 173 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
- 491 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
152
WGUS54 KHUN 171916
FFWHUN
ALC033-077-172215-
/O.NEW.KHUN.FF.W.0039.120917T1916Z-120917T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
216 PM CDT MON SEP 17 2012
THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
LAUDERDALE COUNTY IN NORTHWEST ALABAMA...
COLBERT COUNTY IN NORTHWEST ALABAMA...
* UNTIL 515 PM CDT
* AT 210 PM CDT...EMERGENCY MANAGEMENT REPORTED HEAVY RAIN IN THE
CITIES OF TUSCUMBIA AND FLORENCE. RAINFALL AMOUNTS OF 2 TO 3
INCHES HAVE ALREADY FALLEN ACROSS PARTS OF WESTERN AND CENTRAL
LAUDERDALE AND COLBERT COUNTIES.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FLORENCE...MUSCLE SHOALS...SHEFFIELD...TUSCUMBIA...UNDERWOOD-
PETERSVILLE...CHEROKEE...ROGERSVILLE...KILLEN...LITTLEVILLE...
LEIGHTON...LEXINGTON...ANDERSON...SAINT FLORIAN AND WATERLOO.
ADDITIONAL RAINFALL AMOUNTS AROUND 2 INCHES ARE EXPECTED ACROSS
PORTIONS OF LAUDERDALE AND COLBERT COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS
AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
&&
LAT...LON 3501 8820 3500 8721 3482 8721 3478 8728
3476 8727 3478 8733 3480 8736 3481 8741
3478 8743 3477 8742 3471 8743 3462 8750
3457 8752 3459 8814 3489 8810 3491 8814
$$
RBOYD3 follow-up statements
397
WGUS54 KHUN 172118
FFWHUN
ALC033-077-180015-
/O.EXT.KHUN.FF.W.0039.000000T0000Z-120918T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
418 PM CDT MON SEP 17 2012
THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
LAUDERDALE COUNTY IN NORTHWEST ALABAMA...
COLBERT COUNTY IN NORTHWEST ALABAMA...
* UNTIL 715 PM CDT
* AT 410 PM CDT...LAW ENFORCEMENT AND EMERGENCY MANAGEMENT REPORTED
SIGNIFICANT FLASH FLOODING IN MUSCLE SHOALS AND TUSCUMBIA.
THE SOUTHGATE MALL PARKING LOT WAS COMPLETELY UNDER WATER AND
AREAS ALONG WOODWARD AVENUE WERE EXPERIENCING SIGNIFICANT FLASH
FLOODING. IN ADDITION...LOCATIONS IN WESTERN COLBERT AND
LAUDERDALE COUNTY HAVE RECEIVED BETWEEN 3 AND 5 INCHES OF
RAINFALL SINCE THE OVERNIGHT PERIOD.
THIS IS A FLASH FLOOD EMERGENCY FOR THE CITIES OF FLORENCE...
MUSCLE SHOALS AND TUSCUMBIA. THIS IS A DANGEROUS FLOODING
SITUATION.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
FLORENCE...MUSCLE SHOALS...SHEFFIELD...TUSCUMBIA...UNDERWOOD-
PETERSVILLE...CHEROKEE...ROGERSVILLE...KILLEN...LITTLEVILLE...
LEIGHTON...LEXINGTON...ANDERSON...SAINT FLORIAN AND WATERLOO.
ADDITIONAL RAINFALL AMOUNTS AROUND 2 TO 3 INCHES ARE EXPECTED
THROUGH MID EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE EXTENSIVE
AND MAJOR FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND
UNDERPASSES.
&&
LAT...LON 3501 8820 3500 8721 3482 8721 3478 8728
3476 8727 3478 8733 3480 8736 3481 8741
3478 8743 3477 8742 3471 8743 3462 8750
3457 8752 3459 8814 3489 8810 3491 8814
$$291
WGUS74 KHUN 172221
FFSHUN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
521 PM CDT MON SEP 17 2012
ALC033-077-180015-
/O.CON.KHUN.FF.W.0039.000000T0000Z-120918T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE AL-COLBERT AL-
521 PM CDT MON SEP 17 2012
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
LAUDERDALE AND COLBERT COUNTIES...
...THIS IS A FLASH FLOOD EMERGENCY FOR TUSCUMBIA AND MUSCLE
SHOALS...
AT 515 PM CDT...EMERGENCY MANAGEMENT AND TRAINED SPOTTERS
REPORT SIGNIFICANT FLASH FLOODING ACROSS A LARGE PORTION OF COLBERT
AND LAUDERDALE COUNTIES. SPECIFICALLY...AREAS IN AND AROUND
WOODWARD AVENUE IN MUSCLE SHOALS WERE EXPERIENCING MAJOR FLOODING
WITH SEVERAL FEET OF WATER INTO SOME BUSINESSES.
RAINFALL REPORTS INDICATE 4 TO 6 INCHES OF RAIN HAS ALREADY FALLEN
ACROSS THE AREA. ALTHOUGH RAINFALL HAS BECOME LIGHTER IN INTENSITY
SINCE 400 PM...ADDITIONAL RAINFALL THROUGH EARLY EVENING WILL
EXACERBATE THE ONGOING FLOODING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FLORENCE...MUSCLE SHOALS...SHEFFIELD...TUSCUMBIA...UNDERWOOD-
PETERSVILLE...CHEROKEE...ROGERSVILLE...KILLEN...LITTLEVILLE...
LEIGHTON...LEXINGTON...ANDERSON...SAINT FLORIAN AND WATERLOO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS... OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING
WATER FIND ANOTHER ROUTE OVER HIGHER GROUND.
&&
LAT...LON 3501 8820 3500 8721 3482 8721 3478 8728
3476 8727 3478 8733 3480 8736 3481 8741
3478 8743 3477 8742 3471 8743 3462 8750
3457 8752 3459 8814 3489 8810 3491 8814
$$259
WGUS74 KHUN 180022
FFSHUN
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
722 PM CDT MON SEP 17 2012
ALC077-033-180028-
/O.EXP.KHUN.FF.W.0039.000000T0000Z-120918T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAUDERDALE AL-COLBERT AL-
722 PM CDT MON SEP 17 2012
...THE FLASH FLOOD WARNING FOR LAUDERDALE AND COLBERT COUNTIES HAS
EXPIRED...
THE HEAVY RAIN HAS ENDED...BUT ADDITIONAL LIGHT TO MODERATE
RAINFALL WILL CONTINUE THROUGH THE OVERNIGHT HOURS. WHILE THE THREAT
OF RAPID WATER RISES AND FLASH FLOODING HAS ENDED...THE PERSISTENT
RAINFALL WILL ALLOW AREAL FLOODING TO CONTINUE. THEREFORE...MUCH OF
LAUDERDALE AND COLBERT HAS BEEN INCLUDED IN AN AREAL FLOOD WARNING
UNTIL 1015 PM. PLEASE CONSULT THE FLOOD WARNING FOR MORE
INFORMATION AND CONTINUE TO HEED ANY ROAD CLOSURES.
LAT...LON 3501 8820 3500 8721 3482 8721 3478 8728
3476 8727 3478 8733 3480 8736 3481 8741
3478 8743 3477 8742 3471 8743 3462 8750
3457 8752 3459 8814 3489 8810 3491 8814
$$
CCCThe office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 10:20 AM CDT | Special Weather Statement | HUN | Colbert, Lauderdale | 70 min |
| Sep 17, 11:50 AM CDT | Flood Watch | HUN | Colbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more | 22 hr |
| Sep 17, 4:27 PM CDT | Flash Flood Warning | HUN | Franklin, Lawrence, Limestone | 3 hr |
Nearby
Flash Flood Warnings in Alabama, 2012Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.