Alert archive / Alabama / Flash Flood Warnings in 1997

Flash Flood Warning 36, NWS Birmingham, AL

July 22, 1997Cleburne County, Randolph County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 22, 1997, 11:00 PM CDT for Cleburne County, Randolph 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 22, 1997, 11:00 PM CDT (04:00 UTC)
Expired
Jul 23, 1997, 1:00 AM CDT
In force
2 hr
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Cleburne County, AL, Randolph County, AL

The radar

The Atlanta radar (KFFC), 87 km from the middle of the area, began a volume at 04:03 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.0 hours before the alert went out and 93 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 00:00Z on 1997-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1723 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 00:00Z on 1997-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
1723 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
524 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
113 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 230407
FFWBHM
ALC021-029-230600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1100 PM CDT TUE JUL 22 1997

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1 AM WEDNESDAY
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST CENTRAL ALABAMA

   ...CLEBURNE COUNTY...RANDOLPH COUNTY

THIS EXTENDS THE WARNING ISSUED EARLIER FOR THE SAME AREA.  HEAVY RAINS
CONTINUE TO ROTATE AROUND THE SLOW MOVING REMAINS OF WHAT ONCE WAS
HURRICANE DANNY.  THE STORM CENTER AT 11 PM WAS OVER CLAY COUNTY.  IT
WAS MOVING SLOWLY AND ERRATICLY BUT GENERALLY TO THE EAST.  EXPECT
HEAVY RAIN TO LAST FOR AT LEAST ANOTHER HOUR OR TWO.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.v

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:05 PM CDTFlash Flood WarningBMXCleburne, Randolph3 hr

Nearby

Flash Flood Warnings in Alabama, 1997Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.