Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 67, NWS Mobile, AL

March 16, 1990Barbour County, Dale County, Henry County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 16, 1990, 7:17 PM CST for Barbour County, Dale County, Henry County, Alabama. It was in force for 58 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 16, 1990, 7:17 PM CST (01:17 UTC)
Expired
Mar 16, 1990, 8:15 PM CST
In force
58 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Barbour County, AL, Dale County, AL, Henry County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Mar 16, 7:30 PM CSTThunderstorm Wind 0Barbour, AL
Mar 16, 7:30 PM CSTThunderstorm Wind 0Dale, AL
Mar 16, 7:40 PM CSTThunderstorm Wind 0Henry, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Apalachicola Mun, FL (KAQQ), launched 00:00Z, 1.3 hours before the alert went out and 212 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, Apalachicola Mun, FL at 00:00Z on 1990-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 557 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Apalachicola Mun, FL at 00:00Z on 1990-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 257 square meters per square second.1939587897117Sfc1 km3 km6 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
557 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
257 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMGM 170118
SVRMGM
ALC005-045-067-170215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MONTGOMERY AL
717 PM CST FRI MAR 16 1990
 
THE NATIONAL WEATHER SERVICE IN MONTGOMERY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH ALABAMA
          ...BARBOUR...DALE...HENRY
 
WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM JUST WEST
OF EUFAULA SOUTHWARD TO JUST SOUTHWEST OF MIDLAND CITY MOVING SLOWLY
TOWARD THE EAST. THE INDIVIDUAL THUNDERSTORMS WERE MOVING NORTHEAST
ALONG THE LINE AT 30 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

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

In the hours before

Local storm report, Mar 16, 2:45 PM CST, 4 hours 32 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENSACOLA FL
230 PM CST FRI MAR 16 1990

TIME              EVENT

MARCH 15 1990

415 PM            ESCAMBIA COUNTY...PEA SIZE HAIL WAS REPORTED NEAR
                  MOLINO AND NORTH OF CANTONMENT BY SKWARN SPOTTER.

435 PM            ESCAMBIA COUNTY... A TREE WAS BLOWN DOWN ON HWY 97
                  SOUTHEAST OF ATMORE REPORTED BY CD.

MARCH 16 1990

830 AM            ESCAMBIA COUNTY...A TREE AND FENCE WERE BLOWN DOWN
                  NEAR INTERSECTION OF SCENIC HWY AND HWY 90...OBSERVED
                  BY PNS MIC.

830 AM            SANTA ROSA COUNTY...10 TO 15 TREES WERE BLOWN DOWN
           6       ALONG ESCAMBIA BAY SOUTHEAST OF FLORIDATOWN...
                  OBSERVED BY PNS MIC.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 6:46 PM CSTFlash Flood WarningMOBChambers, Lee, Tallapoosa119 min
Mar 16, 6:46 PM CSTFlash Flood WarningMOBCoffee, Crenshaw, Dale, Geneva, Pike119 min
Mar 16, 6:46 PM CSTFlash Flood WarningMOBBarbour119 min
Mar 16, 9:09 PM CSTFlash Flood WarningMOBCoffee, Covington, Dale, Geneva4 hr
Mar 16, 9:09 PM CSTFlash Flood WarningMOBBarbour4 hr
Mar 16, 9:38 PM CSTFlash Flood WarningMOBMacon, Montgomery2 hr
Mar 16, 9:38 PM CSTFlash Flood WarningMOBLowndes2 hr
Mar 16, 11:27 PM CSTFlash Flood WarningMOBHenry3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.