Alert archive / Alabama / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 41, NWS Mobile, AL

July 26, 1987Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 26, 1987, 2:15 AM CDT for Mobile County, Alabama. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 26, 1987, 2:15 AM CDT (07:15 UTC)
Expired
Jul 26, 1987, 3:15 AM CDT
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Mobile County, AL

The radar

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

The nearest sounding before it

Boothville, LA (KBVE), launched 00:00Z, 7.3 hours before the alert went out and 190 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, Boothville, LA at 00:00Z on 1987-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Boothville, LA at 00:00Z on 1987-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
38 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 KMOB 260712
SVRMOB
ALC097-260815-

BULLETIN..IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
215 AM CDT SUN JUL 26 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 315 AM CDT FOR THE FOLLOWING COUNTY IN ALABAMA...

...MOBILE

AT 210 AM WEATHER SERVICE RADARS INDICATED THE SEVERE THUNDERSTORMS
OVER NORTHERN MOBILE BAY WERE DEVELOPING WESTWARD INTO MOBILE COUNTY.
AN INTENSE THUNDERSTORM WAS LOCATED JUST NORTHEAST OF DOWNTOWN MOBILE.
THE STORM WERE CONTINUING TO MOVE TOWARD THE SOUTH-SOUTHWEST AT 20 MPH.
LARGE HAIL AND DAMAGING WINDS ALONG WITH VERY INTENSE LIGHTNING IS
EXPECTED WITH THESE THUNDERSTORMS.

RESI/DENTS OF SOUTHERN MOBILE COUNTY SHOULD TAKE PRECAUTIONS AS THESE
THUNDERSTORMS MOVE THROUGH.

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, Jul 26, 1:56 AM CDT, 19 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
155 AM CDT SUN JUL 26 1987

AT 127 AM THE BALDWIN COUNTY EMA REPORTED MARBLE SIZE HAIL AND
45 TO 50 MPH WINDS IN BAY MINETTE.  ALSO, LIGHTNING STRIKES AT ONE
PER SECOND.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 11:07 PM CDTSevere Thunderstorm WarningMOBMonroe53 min
Jul 26, 1:20 AM CDTSevere Thunderstorm WarningMOBBaldwin55 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; the sounding from the Mesonet's radiosonde archive.