Flash Flood Warning 21, NWS Huntsville, AL

Issued

May 28, 2010, 2:29 PM CDT (19:29 UTC)

Expired

May 28, 2010, 4:08 PM CDT

In force

99 min

Issued by

NWS Huntsville, AL

Area

Storm-based polygon

Flood severity

None

County DeKalb County, AL

The Northeast Alabama radar (KHTX), 53 km from the middle of the area, began a volume at 19:30 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.

042 
WGUS54 KHUN 281929
FFWHUN
ALC049-282130-
/O.NEW.KHUN.FF.W.0021.100528T1929Z-100528T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
229 PM CDT FRI MAY 28 2010

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN DEKALB COUNTY IN NORTHEAST ALABAMA...

* UNTIL 430 PM CDT

* AT 229 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING DUE TO VERY HEAVY RAINFALL.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VALLEY
  HEAD...MENTONE AND HAMMONDVILLE.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF 
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. MOVE TO HIGHER GROUND 
IMMEDIATELY! 

&&

LAT...LON 3470 8564 3470 8555 3455 8552 3458 8571

$$

DJN

026 
WGUS74 KHUN 282014
FFSHUN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
314 PM CDT FRI MAY 28 2010

ALC049-282130-
/O.CON.KHUN.FF.W.0021.000000T0000Z-100528T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
314 PM CDT FRI MAY 28 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHEASTERN DEKALB COUNTY...

AT 310 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR IS SHOWING 
THAT THE HEAVIEST RAIN HAS ENDED FOR THE MOMENT BUT THERE IS STILL 
THE CHANCE OF MORE HEAVY RAIN FOR THE NEXT HOUR.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SULPHER
SPRINGS...VALLEY HEAD...MENTONE AND HAMMONDVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FRIDAY
EVENING FOR NORTHEASTERN ALABAMA AND CENTRAL TENNESSEE.

&&

LAT...LON 3470 8564 3470 8555 3455 8552 3458 8571

$$

SS

728 
WGUS74 KHUN 282108
FFSHUN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
408 PM CDT FRI MAY 28 2010

ALC049-282118-
/O.CAN.KHUN.FF.W.0021.000000T0000Z-100528T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
408 PM CDT FRI MAY 28 2010

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN DEKALB
COUNTY...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FRIDAY
EVENING FOR NORTHEASTERN ALABAMA AND CENTRAL TENNESSEE.

LAT...LON 3470 8564 3470 8555 3455 8552 3458 8571

$$

SS

Flash Flood Warnings in Alabama, 2010Every flash flood warning in 2010

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.