Alert archive / Alabama / Flash Flood Warnings in 1999

Flash Flood Warning 46, NWS Birmingham, AL

July 6, 1999Cherokee County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 6, 1999, 4:47 PM CDT for Cherokee County, Alabama. It was in force for 2 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
Jul 6, 1999, 4:47 PM CDT (21:47 UTC)
Expired
Jul 6, 1999, 6:50 PM CDT
In force
2 hr
Issued by
NWS Birmingham, AL
Area
Whole counties

County Cherokee County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 136 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1066 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1066 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
66 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 
TTAA00 KBHM 062147
FFWBHM
ALC019-062350-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
447 PM CDT TUE JUL 6 1999

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A...

* FLASH FLOOD WARNING FOR...
  CHEROKEE COUNTY... IN NORTHERN ALABAMA.

* UNTIL 650 PM CDT

* AT 4:45 PM STRONG THUNDERSTORMS CONTINUED TO MOVE INTO CHEROKEE
COUNTY. HEAVY RAIN HAS ALREADY FALLEN ACROSS MANY AREAS OF THE
COUNTY AND ADDITIONAL RAIN MAY CAUSE CREEKS AND STREAMS TO FLOOD.
MOTORIST SHOULD NOT CROSS WATER COVERING A ROADWAY.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 6, 2:56 PM CDT, 1 hour 51 minutes before
ALZ001>050-GAZ089-090-102-120-062300-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
256 PM CDT TUE JUL 6 1999

A SHORT WAVE TROUGH IN THE UPPER ATMOSPHERE CONTINUES SLOWLY MOVING
TOWARDS ALABAMA THIS AFTERNOON. DOPPLER RADAR INDICATES A LARGE AREA OF
SHOWERS AND THUNDERSTORMS DEVELOPING IN WESTERN SOUTH CAROLINA...
SOUTHWESTERN NORTH CAROLINA...AND NORTHERN GEORGIA. THE AREA OF STORMS
WILL DRIFT SLIGHTLY SOUTHWARD AS IT APPROACHES ALABAMA...AND THE STORM
PREDICTION CENTER AS PLACED MUCH OF EASTERN ALABAMA...IN A SLIGHT RISK
FOR SEVERE THUNDERSTORMS...THROUGH WEDNESDAY MORNING.

ISOLATED STORMS COULD BECOME SEVERE...WITH THE MAIN THREAT BEING
DAMAGING WINDS AND DEADLY LIGHTNING. THE STORMS WILL ALSO BE SLOW
MOVING...WHICH MEANS LOCALLY HEAVY RAINFALL WILL BE POSSIBLE.
CURRENTLY...NO WATCHES OR WARNINGS ARE IN EFFECT...BUT A SEVERE
THUNDERSTORM WATCH DOES BORDER EXTREME NORTHEAST ALABAMA.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN
ALERT FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER
RADIO OR LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TONIGHT.

THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST ALABAMA...SEE PRODUCT
BHMSPSMOB. FOR SOUTHEAST ALABAMA...LOOK AT MIASPSTLH.  FOR MORE WEATHER
INFORMATION VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT
http://www.aces.edu/nws/
Special weather statement, Jul 6, 2:56 PM CDT, 1 hour 51 minutes before
ALZ001>050-GAZ089-090-102-120-062300-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
256 PM CDT TUE JUL 6 1999

A SHORT WAVE TROUGH IN THE UPPER ATMOSPHERE CONTINUES SLOWLY MOVING
TOWARDS ALABAMA THIS AFTERNOON. DOPPLER RADAR INDICATES A LARGE AREA OF
SHOWERS AND THUNDERSTORMS DEVELOPING IN WESTERN SOUTH CAROLINA...
SOUTHWESTERN NORTH CAROLINA...AND NORTHERN GEORGIA. THE AREA OF STORMS
WILL DRIFT SLIGHTLY SOUTHWARD AS IT APPROACHES ALABAMA...AND THE STORM
PREDICTION CENTER AS PLACED MUCH OF EASTERN ALABAMA...IN A SLIGHT RISK
FOR SEVERE THUNDERSTORMS...THROUGH WEDNESDAY MORNING.

ISOLATED STORMS COULD BECOME SEVERE...WITH THE MAIN THREAT BEING
DAMAGING WINDS AND DEADLY LIGHTNING. THE STORMS WILL ALSO BE SLOW
MOVING...WHICH MEANS LOCALLY HEAVY RAINFALL WILL BE POSSIBLE.
CURRENTLY...NO WATCHES OR WARNINGS ARE IN EFFECT...BUT A SEVERE
THUNDERSTORM WATCH DOES BORDER EXTREME NORTHEAST ALABAMA.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN
ALERT FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER
RADIO OR LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TONIGHT.

THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST ALABAMA...SEE PRODUCT
BHMSPSMOB. FOR SOUTHEAST ALABAMA...LOOK AT MIASPSTLH.  FOR MORE WEATHER
INFORMATION VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT
http://www.aces.edu/nws/

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:34 PM CDTFlash Flood WarningBMXJefferson2 hr
Jul 6, 4:54 PM CDTSevere Thunderstorm WarningBMXChambers46 min

Nearby

Flash Flood Warnings in Alabama, 1999Every flash flood warning in 1999

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.