Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 159, NWS Jackson, MS

June 22, 1990Sumter County, Alabama

NWS Jackson, MS issued this severe thunderstorm warning at Jun 22, 1990, 6:07 PM CDT for Sumter County, Alabama. It was in force for 53 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
Jun 22, 1990, 6:07 PM CDT (23:07 UTC)
Expired
Jun 22, 1990, 7:00 PM CDT
In force
53 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Sumter 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
Jun 22, 6:35 PM CDTThunderstorm Wind 0Sumter, 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 12:00Z, 11.1 hours before the alert went out and 100 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 12:00Z on 1990-06-22Temperature 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, Centreville/Bibb, AL at 12:00Z on 1990-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -153 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
0 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-153 m²/s²
0-3 km storm-relative helicity
-118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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

Special weather statement, Jun 22, 1:44 PM CDT, 4 hours 23 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-222000-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
130 PM CDT FRI JUN 22 1990

...SHOWERS AND THUNDERSTORMS INCREASING OVER SECTIONS OF
    NORTH MISSISSIPPI...

AT 125 PM CDT...SHOWERS AND THUNDERSTORMS WERE INCREASING OVER NORTH
MISSISSIPPI IN A 20 MILE WIDE BAND FROM TUPELO TO GREENVILLE. THE
STRONGEST THUNDERSTORMS WERE IN A NARROW LINE FROM WATER VALLEY TO NEAR
CLEVELAND MOVING EAST AT 25 MILES AN HOUR. THESE STORMS WILL LIKELY
CONTAIN GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND BRIEF HEAVY RAIN IN
THE NEXT HOUR AS THEY MOVE ACROSS YALOBUSHA...GRENADA...TALLAHATCHI"E...
CALHOUN...LEFLORE...AND SUNFLOWER COUNTIES.

OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED FROM COLUMBUS TO
KOSCIUSKO AND FROM COLUMBIA TO PICAYUNE IN EAST MISSISSIPPI. THEY
WERE ALSO MOVING EAST AT 25 MILES AN HOUR.
Special weather statement, Jun 22, 4:07 PM CDT, 2 hours before
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Special weather statement, Jun 22, 4:25 PM CDT, 1 hour 42 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-222200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
 415 PM CDT FRI JUN 22 1990

 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM THIS EVENING FOR
PARTS OF NORTHERN AND CENTRAL MISSISSIPPI.

AT 415 PM CDT...RADAR INDICATED A BAND OF THUNDERSTORMS WITH VERY HEAVY
RAIN EXTENDING ACROSS NORTH MISSISSIPPI FROM NEAR ROLLING FORK TO NEAR
LOUISVILLE. THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR.
A THUNDERSTORM NEAR DURANT WAS RAPIDLY INCREASING IN STRENGTH AND IS
EXPECTED TO MOVE NEAR KOSIUSKO IN THE NEXT 45 MINUTES.
GUSTY WINDS...DANGEROUS LIGHTNING...LOCALLY HEAVY RAIN...AND SMALL HAIL
ARE POSSIBLE WITH THE THUNDERSTORMS.
Special weather statement, Jun 22, 4:37 PM CDT, 1 hour 30 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-222230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
430 PM CDT FRI JUN 22 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM THIS EVENING FOR
PARTS OF NORTHERN AND CENTRAL MISSISSIPPI.

AT 430 PM CDT...A BAND OF SCATTERED THUNDERSTORMS WICOMMS:STOP1
Special weather statement, Jun 22, 4:43 PM CDT, 1 hour 24 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-222230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
430 PM CDT FRI JUN 22 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM THIS EVENING FOR
PARTS OF NORTHERN AND CENTRAL MISSISSIPPI.

AT 430 PM CDT...A BAND OF SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN
EXTENDED ACROSS NORTH MISSISSIPPI FROM LOUISVILLE TO ROLLING FORK. THE
STRONGEST STORMS WERE LOCATED NEAR LOUSIVILLE AND NEAR ROLLING FORK.

DANGEROUS LIGHTNING...GUSTY WINDS...AND POSSIBLE SMALL HAIL CAN BE
EXPECTED WITH THE THUNDERSTORS.

MOVEMENT WAS EAST AT 25 MILES AN HOUR.
Special weather statement, Jun 22, 6:07 PM CDT, 0 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-230400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
600 PM CDT FRI JUN 22 1990

SEVERE THUNDERSTORM WATCH 528 HAS BEEN CANCELLED FOR A PORTION OF NORTH
MISSISSIPPI.

WATCH NUMER 528 HAS BEEN CLEARED FOR THOSE COUNTIES NORTH OF A LINE FROM
GREENVILLE TO GREENWOOD TO COLUMBUS. HOWEVER THE WATCH REMAINS IN EFFECT
UNTIL 900 PM CDT SOUTH OF THE LINE FROM GREENVILLE TO GREENWOOD TO
COLUMBUS...AND NORTH OF A LINE FROM PORT GIBSON TO MERIDIAN.

AT 550 PM CDT A LINE OF THUNDERSTORMS STRETCHED ACROSS CENTRAL
MISSISSIPPI. THE LEADING EDGE OF THIS LINE EXTENDED FROM SOUTH OF HOLLY
BLUFF TO CARTHAGE TO PHILADELPHIA.  ANOTHER CLUSTER OF THUNDERSTORMS
WAS LOCATED ACROSS HUMPHREYS COUNTY.

THE STRONGER THUNDERSTORMS WILL BE ACCOMPANIED BY GUSTY WINDS IN EXCESS
OF 40 MPH...VERY HEAY RAIN AND POSSIBLE HAIL AS THEY MOVE TO THE EAST
AT 25 MPH. THE LINE OF THUNDERSTORMS WAS MOVING TO THE SOUTH AT 10 TO
15 MPH.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 22, 2:23 PM CDTSevere Thunderstorm WarningJANCalhoun37 min
Jun 22, 3:18 PM CDTSevere Thunderstorm WarningJANCarroll27 min
Jun 22, 4:35 PM CDTSevere Thunderstorm WarningJANNoxubee40 min
Jun 22, 5:31 PM CDTSevere Thunderstorm WarningJANCarroll, Leflore44 min
Jun 22, 6:06 PM CDTSevere Thunderstorm WarningJANYazoo39 min
Jun 22, 6:29 PM CDTSevere Thunderstorm WarningJANHumphreys31 min
Jun 22, 6:50 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Yazoo25 min

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.