Alert archive / Alabama / Flash Flood Warnings in 2024

Flash Flood Warning 4, NWS Huntsville, AL

May 9, 2024Madison County, Alabama

NWS Huntsville, AL issued this flash flood warning at May 9, 2024, 6:06 AM CDT for Madison County, Alabama. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 9, 2024, 6:06 AM CDT (11:06 UTC)
Expired
May 9, 2024, 12:00 PM CDT
In force
6 hr
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Flood severity
None

County Madison County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.1 hours before the alert went out and 178 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, Birmingham, AL at 00:00Z on 2024-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2665 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2024-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
2665 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1094 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.7

Open this sounding in Storm Lab

The text

As transmitted.

530 
WGUS54 KHUN 091106
FFWHUN
ALC089-091415-
/O.NEW.KHUN.FF.W.0004.240509T1106Z-240509T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Huntsville AL
606 AM CDT Thu May 9 2024

The National Weather Service in Huntsville has issued a

* Flash Flood Warning for...
  Central Madison County in north central Alabama...

* Until 915 AM CDT.

* At 606 AM CDT, An off duty NWS employee reported thunderstorms 
  producing heavy rain across the warned area. Between 2 and 4 
  inches of rain have fallen. The expected rainfall rate is 0.25 to 
  0.5 inches in 1 hour. Additional rainfall amounts up to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Off duty NWS employee reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Huntsville, Madison, Moores Mill, Meridianville, Redstone Arsenal, 
  Gurley, Alabama A And M University, University Of Alabama In 
  Huntsville, Harvest, Ryland, Brownsboro and Maysville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3474 8636 3471 8636 3469 8636 3470 8678
      3487 8678 3487 8635 3474 8635

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR

$$

70/DD
2 follow-up statements
257 
WGUS54 KHUN 091403
FFWHUN
ALC089-091700-
/O.EXT.KHUN.FF.W.0004.000000T0000Z-240509T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Huntsville AL
903 AM CDT Thu May 9 2024

The National Weather Service in Huntsville has extended the

* Flash Flood Warning for...
  Central Madison County in north central Alabama...

* Until noon CDT.

* At 903 AM CDT, the public reported thunderstorms producing heavy 
  rain across central Madison county. Numerous roads have water over 
  them. Between 2 and 4 inches of rain have fallen. Flash flooding 
  is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Public reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Huntsville, Madison, Moores Mill, Meridianville, Redstone Arsenal, 
  Gurley, Alabama A And M University, University Of Alabama In 
  Huntsville, Harvest, Ryland, Brownsboro and Maysville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3474 8636 3471 8636 3469 8636 3470 8678
      3487 8678 3487 8635 3474 8635

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR

$$

30
183 
WGUS74 KHUN 091655
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
1155 AM CDT Thu May 9 2024

ALC089-091705-
/O.EXP.KHUN.FF.W.0004.000000T0000Z-240509T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Madison AL-
1155 AM CDT Thu May 9 2024

...FLASH FLOOD WARNING WILL EXPIRE AT NOON CDT TODAY FOR CENTRAL 
MADISON COUNTY...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3487 8678 3487 8635 3474 8635 3474 8636
      3469 8636 3470 8678

$$

KTW

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:08 PM CDTSpecial Weather StatementHUNLauderdale22 min
May 8, 7:18 PM CDTSpecial Weather StatementHUNLauderdale27 min
May 8, 7:30 PM CDTSevere Thunderstorm WarningHUNJackson, Madison45 min
May 8, 7:33 PM CDTSpecial Weather StatementHUNLauderdale42 min
May 8, 7:36 PM CDTSevere Thunderstorm WarningHUNLauderdale, Lawrence, Limestone39 min
May 8, 7:37 PM CDTSpecial Weather StatementHUNLawrence38 min
May 8, 7:38 PM CDTSevere Thunderstorm WarningHUNDeKalb, Jackson67 min
May 8, 7:44 PM CDTTornado WarningHUNLauderdale, Limestone31 min
May 8, 7:45 PM CDTSevere Thunderstorm WarningHUNColbert, Lawrence30 min
May 8, 7:52 PM CDTTornado WarningHUNDeKalb, Jackson38 min
May 8, 7:55 PM CDTSevere Thunderstorm WarningHUNLawrence, Limestone, Morgan50 min
May 8, 8:04 PM CDTTornado WarningHUNLauderdale, Lawrence, Limestone41 min
May 8, 8:09 PM CDTSevere Thunderstorm WarningHUNJackson51 min
May 8, 8:10 PM CDTTornado WarningHUNLimestone, Madison35 min
May 8, 8:17 PM CDTTornado WarningHUNLawrence, Limestone28 min
May 8, 8:26 PM CDTTornado WarningHUNMadison49 min
May 8, 8:29 PM CDTTornado Warning Tornado observedHUNLimestone31 min
May 8, 8:34 PM CDTSevere Thunderstorm WarningHUNDeKalb, Jackson56 min
May 8, 8:44 PM CDTSevere Thunderstorm Warning Considerable damage threatHUNDeKalb16 min
May 8, 8:46 PM CDTTornado WarningHUNLimestone, Madison31 min
May 8, 8:46 PM CDTTornado WarningHUNJackson29 min
May 8, 8:48 PM CDTSevere Thunderstorm Warning Considerable damage threatHUNLauderdale, Limestone57 min
May 8, 8:51 PM CDTTornado WarningHUNDeKalb, Jackson39 min
May 8, 8:52 PM CDTTornado WarningHUNLimestone, Madison38 min
May 8, 8:55 PM CDTSevere Thunderstorm WarningHUNDeKalb22 min
May 8, 9:05 PM CDTTornado WarningHUNDeKalb12 min
May 8, 9:06 PM CDTTornado WarningHUNJackson, Madison54 min
May 8, 9:27 PM CDTTornado Warning Tornado observedHUNJackson, Madison48 min
May 8, 9:30 PM CDTSevere Thunderstorm WarningHUNDeKalb, Jackson45 min
May 8, 9:34 PM CDTSevere Thunderstorm WarningHUNMadison41 min
May 8, 9:38 PM CDTSevere Thunderstorm WarningHUNLimestone52 min
May 8, 9:53 PM CDTTornado WarningHUNJackson22 min
May 8, 9:54 PM CDTTornado WarningHUNLimestone, Madison51 min
May 8, 10:02 PM CDTTornado WarningHUNJackson43 min
May 8, 10:07 PM CDTTornado WarningHUNDeKalb, Jackson17 min
May 8, 10:34 PM CDTTornado WarningHUNMadison41 min
May 8, 10:42 PM CDTTornado Warning EmergencyHUNDeKalb, Jackson48 min
May 8, 10:56 PM CDTFlash Flood WarningHUNJackson, Limestone, Madison3 hr
May 8, 11:02 PM CDTTornado Warning Tornado observedHUNJackson, Madison43 min
May 8, 11:25 PM CDTTornado Warning Tornado observedConsiderable damage threatHUNDeKalb20 min
May 8, 11:35 PM CDTTornado WarningHUNDeKalb, Jackson40 min
May 9, 12:08 AM CDTTornado WarningHUNDeKalb32 min
May 9, 12:20 AM CDTFlash Flood WarningHUNDeKalb, Jackson3 hr
May 9, 3:41 AM CDTSevere Thunderstorm WarningHUNMadison49 min
May 9, 3:48 AM CDTSpecial Weather StatementHUNLimestone42 min
May 9, 3:51 AM CDTSpecial Weather StatementHUNDeKalb39 min
May 9, 4:14 AM CDTSevere Thunderstorm WarningHUNJackson, Madison46 min
May 9, 4:31 AM CDTSpecial Weather StatementHUNMadison44 min
May 9, 4:41 AM CDTSevere Thunderstorm WarningHUNJackson49 min
May 9, 5:19 AM CDTSevere Thunderstorm WarningHUNDeKalb, Jackson26 min
May 9, 5:32 AM CDTAreal Flood WarningHUNMadison9 hr
May 9, 6:34 AM CDTSpecial Weather StatementHUNColbert, Lawrence41 min
May 9, 6:49 AM CDTSevere Thunderstorm WarningHUNColbert, Franklin, Lawrence41 min
May 9, 7:00 AM CDTFlash Flood WarningHUNColbert, Lauderdale3 hr
May 9, 7:15 AM CDTRiver Flood WarningHUNMadison22 hr
May 9, 7:19 AM CDTRiver Flood WarningHUNJackson, Madison, Marshall54 hr
May 9, 7:33 AM CDTSpecial Weather StatementHUNCullman, Jackson, Madison, Morgan42 min
May 9, 7:37 AM CDTSpecial Weather StatementHUNJackson23 min
May 9, 7:49 AM CDTSevere Thunderstorm WarningHUNCullman41 min
May 9, 8:04 AM CDTSevere Thunderstorm WarningHUNCullman, DeKalb, Jackson, Marshall, Morgan26 min
May 9, 8:08 AM CDTTornado WarningHUNDeKalb, Jackson27 min
May 9, 8:28 AM CDTSevere Thunderstorm WarningHUNDeKalb, Marshall20 min
May 9, 8:34 AM CDTFlash Flood WarningHUNDeKalb, Jackson116 min
May 9, 8:53 AM CDTFlash Flood WarningHUNCullman, DeKalb, Jackson, Limestone, Madison, Marshall and 1 more3 hr
May 9, 3:02 PM CDTAreal Flood WarningHUNMadison10 hr

Nearby

Flash Flood Warnings in Alabama, 2024Every flash flood warning in 2024

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.