Alert archive / Alabama / Flash Flood Warnings in 2001

Flash Flood Warning 31, NWS Birmingham, AL

August 10, 2001Morgan County, Alabama

NWS Birmingham, AL issued this flash flood warning at Aug 10, 2001, 8:30 AM CDT for Morgan County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 10, 2001, 8:30 AM CDT (13:30 UTC)
Expired
Aug 10, 2001, 11:30 AM CDT
In force
3 hr
Issued by
NWS Birmingham, AL
Area
Whole counties

County Morgan County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 1.5 hours before the alert went out and 142 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 12:00Z on 2001-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1330 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2001-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
1330 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KBMX 101335
FFWBHM
ALC103-101630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
830 AM CDT FRI AUG 10 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN MORGAN COUNTY IN NORTH CENTRAL ALABAMA

* UNTIL 1130 AM CDT

* AT 827 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
RAIN OVER EASTERN MORGAN COUNTY...INCLUDING THE LACEYS 
SPRING...VALHERMOSO SPRINGS...MORGAN CITY...APPLE GROVE...AND CENTER 
GROVE AREAS.  THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY.  RADAR 
INDICATES 4 TO 6 INCHES OF RAIN HAVE ALREADY FALLEN OVER PARTS OF 
EXTREME EAST-CENTRAL MORGAN COUNTY EARLY THIS MORNING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS 
AND STREAMS...ROADS AND ROADSIDE CULVERTS. 

A FLASH FLOOD WARNING MEANS THAT 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. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 7:01 AM CDTFlash Flood WarningBMXMadison, Marshall3 hr
Aug 10, 9:44 AM CDTFlash Flood WarningBMXJackson3 hr
Aug 10, 9:45 AM CDTFlash Flood WarningBMXMadison, Marshall2 hr
Aug 10, 11:29 AM CDTFlash Flood WarningBMXMorgan3 hr
Aug 10, 12:00 PM CDTFlash Flood WarningBMXMadison, Marshall3 hr

Nearby

Flash Flood Warnings in Alabama, 2001Every flash flood warning in 2001

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.