Alert archive / Alabama / Flash Flood Warnings in 2017

Flash Flood Warning 3, NWS Huntsville, AL

June 23, 2017Colbert County, Lauderdale County, Lawrence County, Alabama

NWS Huntsville, AL issued this flash flood warning at Jun 23, 2017, 1:15 PM CDT for Colbert County, Lauderdale County, Lawrence County, Alabama. It was in force for 6 hr. 6 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
Jun 23, 2017, 1:15 PM CDT (18:15 UTC)
Expired
Jun 23, 2017, 7:15 PM CDT
In force
6 hr
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Flood severity
None

Counties Colbert County, AL, Lauderdale County, AL, Lawrence County, AL

The radar

The Northeast Alabama radar (KHTX), 127 km from the middle of the area, began a volume at 18:16 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

TimeReportWhereRemark
Jun 23, 1:31 PM CDTFLASH FLOOD1 E Killen, ALEMA REPORTED WATER PARTIALLY BLOCKING EASTBOUND LANE AT US 72/CR 71/LINGERLOST RD IN KILLEN. DEPTH OF WATER UNKNOWN.
Jun 23, 1:48 PM CDTFLASH FLOOD2 W Muscle Shoals, ALLOCAL MEDIA REPORTED A VEHICLE SUBMERGED IN A DRAINAGE DITCH AT SOUTH GATE MALL ON AVALON AVE. IN MUSCLE SHOALS. DEPTH OF WATER UNKNOWN.
Jun 23, 1:48 PM CDTFLASH FLOOD2 Wsw Muscle Shoals, ALLOCAL MEDIA REPORTED A VEHICLE SUBMERGED IN A DRAINAGE DITCH AT SOUTH GATE MALL ON AVALON AVE. IN MUSCLE SHOALS. DEPTH OF WATER UNKNOWN.
Jun 23, 2:12 PM CDTFLASH FLOOD1 Nne Tuscumbia, ALEMA REPORTED FLOODING AT 1ST ST AND COMMONS ST IN TUSCUMBIA.
Jun 23, 2:12 PM CDTFLASH FLOOD2 E Sheffield, ALEMA REPORTS FLOODED ROADS ACROSS WOODWARD AVE FROM 2ND ST TO 6TH ST. DEPTH OF WATER UNKNOWN.
Jun 23, 2:12 PM CDTFLASH FLOOD2 Wnw Muscle Shoals, ALEMA REPORTS FLOODED ROADS ACROSS WOODWARD AVE FROM 2ND ST TO 6TH ST. DEPTH OF WATER UNKNOWN.

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, 6.3 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 12:00Z on 2017-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 joules per kilogram.LCLLFCEL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 2017-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 square meters per square second.19395878Sfc1 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
449 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
660 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
224 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted.

826 
WGUS54 KHUN 231815
FFWHUN
ALC033-077-079-240015-
/O.NEW.KHUN.FF.W.0003.170623T1815Z-170624T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Huntsville AL
115 PM CDT FRI JUN 23 2017

The National Weather Service in Huntsville Alabama has issued a

* Flash Flood Warning for...
  Eastern Lauderdale County in northwestern Alabama...
  East central Colbert County in northwestern Alabama...
  North central Lawrence County in northwestern Alabama...

* Until 715 PM CDT Friday

* At 114 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across Florence, Muscle Shoals, and surrounding areas 
  in Northwestern Alabama. Up to two inches of rain have already 
  fallen, and an additional half inch to an inch of rainfall is 
  possible over the next half hour to an hour. Flash flooding is 
  already ongoing in Muscle Shoals, and is expected to begin shortly 
  elsewhere.

* Some locations that will experience flooding include...
  Florence, Muscle Shoals, Sheffield, Tuscumbia, Rogersville, Killen,
  Lexington, St. Florian, Underwood-Petersville and Anderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3500 8764 3500 8721 3489 8721 3470 8734
      3473 8779

$$

12
3 follow-up statements
929 
WGUS74 KHUN 231909
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
209 PM CDT FRI JUN 23 2017

ALC033-077-079-240015-
/O.CON.KHUN.FF.W.0003.000000T0000Z-170624T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lauderdale AL-Colbert AL-Lawrence AL-
209 PM CDT FRI JUN 23 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
EASTERN LAUDERDALE...EAST CENTRAL COLBERT AND NORTH CENTRAL LAWRENCE
COUNTIES...

At 207 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across portions of Northwestern Alabama. Up to two inches of 
rain have already fallen, with an additional half inch of rain 
through 230 PM CDT. Flash flooding already ongoing in Muscle Shoals, 
with several roadways and parking lots of businesses under a foot or 
two of water. Numerous cars are affected in these areas. 

Outside of these locations, small creeks are overflowing their banks 
and are impacting other streets and highways. Please use caution if 
traveling in these locations through 715 PM CDT this evening!

Some locations that will experience flooding include...
Florence, Muscle Shoals, Sheffield, Tuscumbia, Rogersville, Killen,
Lexington, St. Florian, Underwood-Petersville and Anderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3500 8764 3500 8721 3489 8721 3470 8734
      3473 8779

$$

12
038 
WGUS74 KHUN 232107
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
407 PM CDT FRI JUN 23 2017

ALC033-077-079-240015-
/O.CON.KHUN.FF.W.0003.000000T0000Z-170624T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lauderdale AL-Colbert AL-Lawrence AL-
407 PM CDT FRI JUN 23 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
EASTERN LAUDERDALE...EAST CENTRAL COLBERT AND NORTH CENTRAL LAWRENCE
COUNTIES...

At 404 PM CDT, Doppler radar precipitation estimates indicate that 2 
to locally 3 inches of rain fell this afternoon across portions of 
northwest Alabama. The heavy rainfall atop saturate soils has 
resulted in flash flooding. Local emergency officials report 
flooding ongoing in Muscle Shoals, with several roadways and parking 
lots of businesses under a foot or two of water. Numerous cars are 
affected in these areas with at least rescue occurring in that area. 
The rainfall has subsided and the flooding should slowly diminish as 
we go into the late afternoon hours. 

Some locations that will experience flooding include... 
Florence, Muscle Shoals, Sheffield, Tuscumbia, Rogersville, Killen, 
Lexington, St. Florian, Underwood-Petersville and Anderson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3500 8764 3500 8721 3489 8721 3470 8734
      3473 8779

$$

15
697 
WGUS74 KHUN 232230
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
530 PM CDT FRI JUN 23 2017

ALC033-077-079-232239-
/O.CAN.KHUN.FF.W.0003.000000T0000Z-170624T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lauderdale AL-Colbert AL-Lawrence AL-
530 PM CDT FRI JUN 23 2017

...THE FLASH FLOOD WARNING FOR EASTERN LAUDERDALE...EAST CENTRAL
COLBERT AND NORTH CENTRAL LAWRENCE COUNTIES IS CANCELLED...

The heavy rain has ended and earlier flood waters continue to 
recede. Please continue to heed any remaining road closures that may 
be in effect.

LAT...LON 3500 8764 3500 8721 3489 8721 3470 8734
      3473 8779

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 12:24 AM CDTSpecial Weather StatementHUNMarshall36 min
Jun 23, 11:51 AM CDTSpecial Weather StatementHUNFranklin24 min
Jun 23, 11:54 AM CDTSevere Thunderstorm WarningHUNColbert, Franklin36 min
Jun 23, 12:26 PM CDTSpecial Weather StatementHUNColbert, Lauderdale34 min
Jun 23, 12:30 PM CDTSpecial Weather StatementHUNFranklin30 min
Jun 23, 1:01 PM CDTSpecial Weather StatementHUNColbert, Franklin, Lauderdale29 min
Jun 23, 1:13 PM CDTSevere Thunderstorm WarningHUNColbert, Franklin, Lawrence32 min
Jun 23, 1:21 PM CDTTornado WarningHUNFranklin, Lawrence24 min
Jun 23, 1:40 PM CDTSevere Thunderstorm WarningHUNLawrence, Limestone, Morgan35 min
Jun 23, 1:47 PM CDTTornado WarningHUNLawrence28 min
Jun 23, 1:56 PM CDTSevere Thunderstorm WarningHUNCullman, Lawrence, Morgan34 min
Jun 23, 2:08 PM CDTSevere Thunderstorm WarningHUNLawrence, Limestone, Morgan19 min
Jun 23, 2:15 PM CDTSevere Thunderstorm WarningHUNLimestone, Madison30 min
Jun 23, 2:44 PM CDTSevere Thunderstorm WarningHUNMadison31 min
Jun 23, 2:47 PM CDTFlash Flood WarningHUNColbert, Franklin, Lawrence, Limestone, Morgan6 hr
Jun 23, 3:13 PM CDTSpecial Weather StatementHUNCullman32 min
Jun 23, 3:28 PM CDTSpecial Weather StatementHUNMarshall32 min
Jun 23, 3:48 PM CDTAreal Flood WarningHUNMadison6 hr

Nearby

Flash Flood Warnings in Alabama, 2017Every flash flood warning in 2017

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.