Alert archive / Alabama / Flash Flood Warnings in 2012

Flash Flood Warning 9, NWS Huntsville, AL

January 23, 2012Limestone County, Madison County, Morgan County, Alabama

NWS Huntsville, AL issued this flash flood warning at Jan 23, 2012, 2:22 AM CST for Limestone County, Madison County, Morgan County, Alabama. It was in force for 3 hr. 12 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: Jan 23, 2012, 2:22 AM CST (08:22 UTC)
Expired: Jan 23, 2012, 5:30 AM CST
In force: 3 hr
Issued by: NWS Huntsville, AL
Area: Storm-based polygon
Flood severity: None

Counties Limestone County, AL, Madison County, AL, Morgan County, AL

The radar

The Northeast Alabama radar (KHTX), 52 km from the middle of the area, began a volume at 08:24 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
Jan 23, 3:02 AM CST	FLASH FLOOD	4 N Madison, AL	FLASH FLOODING WAS REPORTED ON THE WEST SIDE OF HUGHES ROAD AT THE INTERSECTION OF GOOCH LANE. 6 TO 8 INCH WATER DEPTH THAT IS NOW UP TO THE PORCH LEVEL OF RESIDENCES.
Jan 23, 3:08 AM CST	FLASH FLOOD	Nnw Gurley, AL	FLASH FLOODING WAS REPORTED AT THE INTERSECTION OF GURLEY PIKE AND CAPERS ROAD. WATER WAS UP TO A PORCH OF AN APARTMENT AT THE 200 BLOCK OF GURLEY PIKE.
Jan 23, 3:16 AM CST	FLASH FLOOD	Huntsville, AL	ABOUT SIX INCHES OF WATER COVERING MEMORIAL PKWY ACCESS RD JUST NORTH OF UNIVERSITY AVE.
Jan 23, 3:55 AM CST	FLASH FLOOD	Madison, AL	ABOUT 5 TO 6 INCHES OF WATER COVERING ROADWAY ON HWY 72 BETWEEN UPTOWN AND HUGHES ROADS.
Jan 23, 3:58 AM CST	FLASH FLOOD	10 E Huntsville, AL	SHERIFFS DEPT REPORTED FLOODING ON MAYSVILLE ROAD BETWEEN COOPER CR AND BELL FACTORY RD.
Jan 23, 3:59 AM CST	FLASH FLOOD	Madison, AL	UP TO 9 INCHES OF WATER COVERING PORTIONS OF HWY 72 BETWEEN MADISON HOSPITAL AND TARGET SHOPPING CENTER.
Jan 23, 4:07 AM CST	FLASH FLOOD	Gurley, AL	FLOODING ON LITTLE COVE RD AT MCMULLEN LANE.
Jan 23, 4:14 AM CST	FLASH FLOOD	Gurley, AL	MADISON COUNTY SHERIFF REPORTS HIGHWAY 72 EAST AT MADISON/JACKSON COUNTY BORDER IS IMPASSABLE.
Jan 23, 4:19 AM CST	FLASH FLOOD	Harvest, AL	WATER UP TO CAR DOOR AND PERSON STRANDED ON ORVIL SMITH ROAD.
Jan 23, 4:25 AM CST	FLASH FLOOD	8 E Huntsville, AL	MADISON COUNTY SHERIFF REPORTS WATER ACROSS HWY 72 AT INTERSECTION OF BROCK RD NEAR MADISON COUNTY HIGH SCHOOL.
Jan 23, 5:40 AM CST	FLOOD	3 N Madison, AL	SIX TO TWELVE INCHES OF WATER OVER ROADS ALONG WALL TRIANA AND NANCE ROADS.
Jan 23, 5:40 AM CST	FLOOD	3 Se Harvest, AL	SEVERAL INCHES OF WATER OVER THE ROAD ALONG WALL TRIANA ROAD.

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 00:00Z, 8.4 hours before the alert went out and 157 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 517 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 337 m²/s²
0-3 km storm-relative helicity: 371 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

908 
WGUS54 KHUN 230822
FFWHUN
ALC083-089-103-231130-
/O.NEW.KHUN.FF.W.0009.120123T0822Z-120123T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
222 AM CST MON JAN 23 2012

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MADISON COUNTY IN NORTH CENTRAL ALABAMA...
  NORTHERN MORGAN COUNTY IN NORTH CENTRAL ALABAMA...
  SOUTHERN LIMESTONE COUNTY IN NORTH CENTRAL ALABAMA...

* UNTIL 530 AM CST

* AT 217 AM CST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH     
  FLOODING IN PORTIONS OF THE MADISON AREA OF MADISON COUNTY. SLOW   
  MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CAUSE           
  ADDITIONAL FLOODING OVERNIGHT IN PORTIONS OF                       
  MADISON...LIMESTONE...AND MORGAN COUNTIES. THE FLOODING THREAT     
  WILL BE HIGHER IN URBAN AREAS WITH POOR DRAINAGE. RAINFALL AMOUNTS 
  AROUND ONE TO TWO INCHES HAVE OCCURRED IN THESE AREAS AND AN       
  ADDITIONAL ONE TO TWO INCHES IS POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ATHENS...DECATUR...HUNTSVILLE...MADISON...MERIDIANVILLE...MOORES
  MILL...REDSTONE ARSENAL...ALABAMA A AND M UNIVERSITY...FLINT
  CITY...GURLEY...HARVEST...NEW HOPE...NEW MARKET...OWENS
  CROSSROADS...PRICEVILLE...RYLAND...TRIANA...TRINITY AND UNIVERSITY
  OF ALABAMA IN HUNTSVILLE.

MADISON POLICE DEPARTMENT IN MADISON HAS REPORTED 6 INCHES OF WATER 
COVERING THE ROADWAY AT BALCH AND GILLESPIE IN MADISON...AND ON OLD 
MADISON PIKE BETWEEN HUGHES ROAD AND LARRY DRIVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3488 8634 3487 8635 3485 8634 3475 8634
      3474 8636 3452 8635 3451 8653 3454 8655
      3451 8656 3450 8711 3469 8711 3471 8713
      3483 8713 3495 8633

$$

KDW

2 follow-up statements

323 
WGUS54 KHUN 230827 CCA
FFWHUN
ALC083-089-103-231130-
/O.COR.KHUN.FF.W.0009.120123T0822Z-120123T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
222 AM CST MON JAN 23 2012

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MADISON COUNTY IN NORTH CENTRAL ALABAMA...
  NORTHERN MORGAN COUNTY IN NORTH CENTRAL ALABAMA...
  SOUTHERN LIMESTONE COUNTY IN NORTH CENTRAL ALABAMA...

* UNTIL 530 AM CST

* AT 217 AM CST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING IN PORTIONS OF THE MADISON AREA OF MADISON COUNTY. SLOW
  MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CAUSE
  ADDITIONAL FLOODING OVERNIGHT IN PORTIONS OF
  MADISON...LIMESTONE...AND MORGAN COUNTIES. THE FLOODING THREAT
  WILL BE HIGHER IN URBAN AREAS WITH POOR DRAINAGE. RAINFALL AMOUNTS
  AROUND ONE TO TWO INCHES HAVE OCCURRED IN THESE AREAS AND AN
  ADDITIONAL ONE TO TWO INCHES IS POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ATHENS...DECATUR...HUNTSVILLE...MADISON...MERIDIANVILLE...MOORES
  MILL...REDSTONE ARSENAL...ALABAMA A AND M UNIVERSITY...FLINT
  CITY...GURLEY...HARVEST...NEW HOPE...NEW MARKET...OWENS
  CROSSROADS...PRICEVILLE...RYLAND...TRIANA...TRINITY AND UNIVERSITY
  OF ALABAMA IN HUNTSVILLE.

MADISON POLICE DEPARTMENT HAS REPORTED 6 INCHES OF WATER COVERING
THE ROADWAY AT BALCH AND GILLESPIE IN MADISON...AND ON OLD MADISON
PIKE BETWEEN HUGHES ROAD AND LARRY DRIVE. ALSO...THE INTERSECTION OF
CAPSHAW AND NANCE ROADS HAS BECOME IMPASSABLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3488 8634 3487 8635 3485 8634 3475 8634
      3474 8636 3452 8635 3451 8653 3454 8655
      3451 8656 3450 8711 3469 8711 3471 8713
      3483 8713 3495 8633

$$

KDW

824 
WGUS74 KHUN 230935
FFSHUN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
335 AM CST MON JAN 23 2012

ALC083-089-103-231130-
/O.CON.KHUN.FF.W.0009.000000T0000Z-120123T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LIMESTONE AL-MADISON AL-MORGAN AL-
335 AM CST MON JAN 23 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN MORGAN...
MADISON AND SOUTHERN LIMESTONE COUNTIES UNTIL 530 AM CST...

AT 333 AM CST...STORM SPOTTERS AND EMERGENCY MANAGEMENT REPORTED 
THAT FLASH FLOODING WAS OCCURRING ACROSS PORTIONS OF MADISON COUNTY.

SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ATHENS...DECATUR...HUNTSVILLE...MADISON...MERIDIANVILLE...MOORES
MILL...REDSTONE ARSENAL...ALABAMA A AND M UNIVERSITY...FLINT CITY...
GURLEY...HARVEST...NEW HOPE...NEW MARKET...OWENS CROSSROADS...
PRICEVILLE...RYLAND...TRIANA...TRINITY AND UNIVERSITY OF ALABAMA IN
HUNTSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MADISON POLICE DEPARTMENT REPORTS FLOODING IN PORTIONS OF THE 
MADISON AREA...INCLUDING 6 TO 8 INCHES OF WATER COVERING HUGHES ROAD 
NEAR THE INTERSECTION OF GOOCH...AND AT THE INTERSECTION OF CAPSHAW 
AND NANCE ROADS. IN HUNTSVILLE...FLOODING WAS REPORTED ON THE 
MEMORIAL HIGHWAY ACCESS ROAD NORTH OF UNIVERSITY AVENUE...AND ON 
OAKWOOD AVENUE JUST EAST OF HEMSI NUMBER 2 STATION. IN 
GURLEY...FLOODING WAS REPORTED ON GURLEY PIKE AND CAPERS AND AT THE 
GURLEY GARDEN APARTMENTS. 

ADDITIONALLY...INDIAN CREEK IN THE MADISON AREA HAD OVERFLOWN ITS 
BANKS AT 315 AM AND WAS STILL RISING RAPIDLY.   

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 3488 8634 3487 8635 3485 8634 3475 8634
      3474 8636 3452 8635 3451 8653 3454 8655
      3451 8656 3450 8711 3469 8711 3471 8713
      3483 8713 3495 8633

$$

KDW

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 22, 11:38 PM CST	Special Weather Statement	HUN	Colbert, Franklin, Lauderdale	37 min
Jan 22, 11:49 PM CST	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lauderdale	41 min
Jan 23, 12:03 AM CST	Tornado Warning	HUN	Colbert, Franklin, Lauderdale	27 min
Jan 23, 12:09 AM CST	Severe Thunderstorm Warning	HUN	Colbert, Franklin	26 min
Jan 23, 12:28 AM CST	Tornado Warning	HUN	Lauderdale	21 min
Jan 23, 12:53 AM CST	Special Weather Statement	HUN	Lawrence, Limestone	37 min
Jan 23, 1:21 AM CST	Special Weather Statement	HUN	Limestone, Madison, Morgan	39 min
Jan 23, 1:33 AM CST	Severe Thunderstorm Warning	HUN	Franklin	27 min
Jan 23, 1:35 AM CST	Flash Flood Warning	HUN	Colbert, Lauderdale, Lawrence	3 hr
Jan 23, 1:50 AM CST	Flash Flood Warning	HUN	Colbert, Franklin, Lawrence	3 hr
Jan 23, 1:59 AM CST	Severe Thunderstorm Warning	HUN	Franklin, Lawrence	31 min
Jan 23, 2:03 AM CST	Severe Thunderstorm Warning	HUN	Madison, Marshall, Morgan	27 min
Jan 23, 2:11 AM CST	Tornado Warning	HUN	Jackson, Madison, Marshall	34 min
Jan 23, 2:30 AM CST	Special Weather Statement	HUN	Madison	30 min
Jan 23, 2:42 AM CST	Severe Thunderstorm Warning	HUN	DeKalb, Jackson	48 min
Jan 23, 3:01 AM CST	Special Weather Statement	HUN	Madison	44 min
Jan 23, 3:09 AM CST	Flash Flood Warning	HUN	Cullman, Morgan	3 hr
Jan 23, 3:22 AM CST	Special Weather Statement	HUN	Morgan	23 min
Jan 23, 4:02 AM CST	Special Weather Statement	HUN	Cullman	28 min
Jan 23, 4:33 AM CST	Special Weather Statement	HUN	Marshall	42 min
Jan 23, 4:56 AM CST	Flash Flood Warning	HUN	Jackson, Madison, Marshall	3 hr
Jan 23, 5:12 AM CST	Special Weather Statement	HUN	DeKalb	48 min
Jan 23, 5:25 AM CST	Areal Flood Warning	HUN	Madison	6 hr
Jan 23, 7:39 AM CST	River Flood Warning	HUN	Madison	28 hr
Jan 23, 7:54 AM CST	Areal Flood Warning	HUN	Jackson	2 hr
Jan 23, 8:23 AM CST	River Flood Warning	HUN	Jackson, Madison, Marshall	5 days
Jan 23, 8:49 AM CST	Areal Flood Warning	HUN	Marshall	3 hr
Jan 23, 9:36 AM CST	River Flood Warning	HUN	Lawrence	43 hr
Jan 23, 10:00 AM CST	Areal Flood Warning	HUN	Jackson	2 hr
Jan 23, 11:31 AM CST	Areal Flood Warning	HUN	Madison	9 hr
Jan 23, 1:22 PM CST	Areal Flood Warning	HUN	Lawrence	20 hr

Nearby

Flash Flood Warnings in Alabama, 2012 Every 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.