Alert archive / Alabama / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 9, NWS Birmingham, AL

March 18, 1987Marion County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 18, 1987, 7:21 PM CST for Marion County, Alabama. It was in force for 54 min. 1 report 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 18, 1987, 7:21 PM CST (01:21 UTC)
Expired
Mar 18, 1987, 8:15 PM CST
In force
54 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Marion 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 18, 7:45 PM CSTHail 0.75Marion, 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

Centreville/Bibb, AL (KCKL), launched 00:00Z, 1.4 hours before the alert went out and 152 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, Centreville/Bibb, AL at 00:00Z on 1987-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 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, Centreville/Bibb, AL at 00:00Z on 1987-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117Sfc1 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
162 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 18, 1:32 PM CST, 5 hours 49 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
130 PM CST THU MAR 18 1987

...PUBLIC REPORTED SMALL HAIL...ABOUT ONE FOURTH INCH IN DIAMETER
   AT FULTONDALE AT 110 CST THIS AFTERNOON. ALTHOUGH THE HAILL
   WAS SMALL...THERE WAS A CONSIDERABLE AMOUNT OF IT...NEARLY
   COVERING THE GROUND.

   FULTONDALE IS IN JEFFERSON COUNTY JUST NORTH OF THE
   BIRMINGHAM CITY LIMITS.
Special weather statement, Mar 18, 1:55 PM CST, 5 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
155 PM CST WED MAR 18 1987

STRONG THUNDERSTORMS CONTINUE IN SEVERAL AREAS OF NORTHEAST
ALABAMA THIS AFTERNOON.

BETWEEN NOW AND ABOUT 230 THIS AFTERNOON...THE STRONGEST
THUNDERSTORMS WILL AFFECT THE FOLLOWING AREAS...

...ETOWAH COUNTY...INCLUDING THE GADSDEN AREA

...EASTERN CLAY COUNTY INCLUDING THE LINEVILLE AREA AND
   NORTHERN RANDOLPH COUNTY.

AT 155...THE STRONGEST THUNDERSTORMS WERE NEAR ASHLAND IN
CLAY COUNTY...ALONG THE ST CLAIR/ETOWAH COUNTY LINE SOUTHWEST
OF GADSDEN AND OVER NORTHWEST CULLMAN COUNTY IN THE
BATTLEGROUND COMMUNITY. THE THUNDERSTORMS MAY PRODUCE
STRONG WINDS AND SOME HAIL AS THEY MOVE NORzTHEAST AT 40 MPH.
Local storm report, Mar 18, 2:53 PM CST, 4 hours 28 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
155 PM CST THU MAR 18 1987

...THE BIRMINGHAM AMATEUR RADIO CLUB REPORTS HAIL AT 250 PM
   IN BLUFF PARK. THIS IS ON SHADES MOUNTAIN JUST SOUTH OF
   BIRMINGHAM. MOST OF IT WAS SMALL...HOWEVER...A CONSIDERABLE
   AMOUNT WAS MARBLE SIZE.

...AT 252 PM CST...PUBLIC REPORTS HAIL ONE FOURTH TO ONE HALF
   INCH IN DIAMETER AT EASTWOOD MALL...ALONG THE EASTERN EDGE
   OF BIRMINGHAM.
Special weather statement, Mar 18, 3:05 PM CST, 4 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
305 PM CST WED MAR 18 1987

STRONG THUNDERSTORMS IN THE BIRMINGHAM AREA WERE PRODUCING
HAIL AT BLUFF PARK AND EASTWOOD MALL JUST BEFORE 3 PM CST.
SOME OF THE HAIL WAS MARBLE SIZE.

THE STRONGEST THUNDERSTORMS WERE ALONG THE SOUTH AND EAST
EDGE OF THE CITY. THEY WILL MOVE NORTHEAST THROUGH EAST
JEFFERSON AND ST CLAIR COUNTIES BETWEEN 3PM AND 4 PM.

OTHER STRONG THUNDERSTORMS OVER NORTH BLOUNT COUNTY NORTH
OF ONEONTA MAY ALSO PRODUCE HAIL AND GUSTY WINDS AS THEY
MOVE NORTHEAST POSSIBLY INTO EXTREME NORTHWEST ETOWAH
COUNTY.

STILL ANOTHER STRONG THUNDERSTORM WAS OVER THE NORTH EDGE
OF CULLMAN COUNTY ABOUT 10 MILES NORTH OF CULLMAN.

...BECAUSE OF COLD AIR ALOFT...IT DOES NOT TAKE A VERY STRONG
   THUNDERSTORM TO PRODUCE SMALL TO MARBLE SIZE HAIL TODAY.
   MANY OF THE THUNDERSTORMS TODAY THAT HAD HAIL GO UP TO
   A HEIGHT OF ONLY 25 THOUSAND FEET. NORMALLY THIS WOULD
   BE ONLY AN ORDINARY MODERATE THUNDERSHOWER.
Special weather statement, Mar 18, 3:21 PM CST, 4 hours before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MONTGOMERY, AL
320 PM CST WED MAR 18 1987

AT 315 PM CST MONTGOMERY WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS
10 TO 20 MILES WIDE EXTENDING FROM BIRMINGHAM SOUTH ACROSS SELMA TO
NEAR WHATLEY IN SOUTHWEST ALABAMA. THE STRONGEST THUNDERSTORMS WERE
LOCATED JUST NORTHEAST OF SELMA AND 15 MILES NORTHEAST OF WHATLEY.
THESE THUNDERSTORMS WERE MOVING NORTHEAST AT AROUND 40 MPH AND THE
STRONGER THUNDERSTORMS WILL LIKELY PRODUCE BRIEF PERIODS OF HEAVY
RAINS AND DANGEROUS LIGHTNING ALONG WITH STRONG GUSTY WINDS AND
POSSIBLY SOME SMALL HAIL.

THIS RAIN AND THUNDERSTORM ACTIVITY WILL LIKELY CONTINUE OVER THE
AREA FOR THE NEXT FEW HOURS AND OTHER STRONG THUNDERSTORMS MAY DEVELOP.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 7:21 PM CSTSevere Thunderstorm WarningBMXColbert, Franklin54 min
Mar 18, 8:11 PM CSTSevere Thunderstorm WarningBMXColbert, Franklin64 min
Mar 18, 8:11 PM CSTSevere Thunderstorm WarningBMXMarion64 min
Mar 18, 9:00 PM CSTSevere Thunderstorm WarningBMXLamar55 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1987Every severe thunderstorm warning in 1987

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.