Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 240, NWS Jackson, MS

December 22, 1990Lauderdale County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Dec 22, 1990, 1:25 PM CST for Lauderdale County, Mississippi. It was in force for 35 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: Dec 22, 1990, 1:25 PM CST (19:25 UTC)
Expired: Dec 22, 1990, 2:00 PM CST
In force: 35 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Lauderdale County, MS

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

Time	Report	Where	Remark
Dec 22, 1:50 PM CST	Thunderstorm Wind 0	Lauderdale, MS

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

Jackson, MS (KJAN), launched 12:00Z, 7.4 hours before the alert went out and 134 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 822 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.6

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, Dec 22, 9:27 AM CST, 3 hours 58 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
930 AM CST SAT DEC 22 1990

TIME          PLACE                   EVENT
915 AM        NEAR BROOKHAVEN         OUTBUILDING BLOWN INTO ROAD
              LINCOLN CO.             ROOF BLOWN OFF AN ABANDONED
                                      HOUSE.

Local storm report, Dec 22, 11:52 AM CST, 1 hour 33 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
1150 AM CST SAT DEC 22 1990

1132 AM CST...NESHOBA COUNTY C. D. REPORTS TRACTOR SHED AND NUMEROUS
              TREES BLOWN DOWN JUST NORTH OF PHILADELPHIA MISSISSIPPI.

Local storm report, Dec 22, 12:28 PM CST, 57 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1120 PM CST SAT DEC 22 1990

TIME          PLACE                   EVENT
915 AM        NEAR BROOKHAVEN         OUTBUILDING BLOWN INTO ROAD
              LINCOLN CO.             ROOF BLOWN OFF AN ABANDONED
                                      HOUSE.

1015 AM       PINOLA                  DAMAGE TO 1 HOUSE
              SIMPSON CO.             ROOF BLOWN OFF A FARM
                                      SUPPLY BUILDING

1045 AM       NEAR MENDENHALL         NMRS TREES DOWN
              SIMSON CO.

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 21, 6:04 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Yazoo	56 min
Dec 21, 6:09 PM CST	Tornado Warning	JAN	Grenada, Montgomery	51 min
Dec 21, 6:58 PM CST	Tornado Warning	JAN	Calhoun	47 min
Dec 21, 7:05 PM CST	Flash Flood Warning	JAN	Leflore	3 hr
Dec 21, 7:30 PM CST	Severe Thunderstorm Warning	JAN	Madison	45 min
Dec 21, 7:58 PM CST	Severe Thunderstorm Warning	JAN	Attala, Leake	32 min
Dec 21, 8:36 PM CST	Severe Thunderstorm Warning	JAN	Winston	69 min
Dec 22, 12:58 AM CST	Severe Thunderstorm Warning	JAN	Warren	32 min
Dec 22, 2:49 AM CST	Flash Flood Warning	JAN	Warren	116 min
Dec 22, 4:33 AM CST	Severe Thunderstorm Warning	JAN	Neshoba	27 min
Dec 22, 5:02 AM CST	Severe Thunderstorm Warning	JAN	Winston	28 min
Dec 22, 10:05 AM CST	Severe Thunderstorm Warning	JAN	Simpson	25 min
Dec 22, 10:42 AM CST	Tornado Warning	JAN	Simpson, Smith	48 min
Dec 22, 10:50 AM CST	Severe Thunderstorm Warning	JAN	Newton	55 min
Dec 22, 10:57 AM CST	Severe Thunderstorm Warning	JAN	Newton	63 min
Dec 22, 11:26 AM CST	Severe Thunderstorm Warning	JAN	Neshoba	64 min
Dec 22, 12:23 PM CST	Tornado Warning	JAN	Marion, Walthall	37 min
Dec 22, 12:28 PM CST	Severe Thunderstorm Warning	JAN	Newton	62 min
Dec 22, 12:39 PM CST	Tornado Warning	JAN	Lamar	51 min
Dec 22, 12:57 PM CST	Tornado Warning	JAN	Forrest	33 min
Dec 22, 1:13 PM CST	Tornado Warning	JAN	Jones	62 min
Dec 22, 1:28 PM CST	Tornado Warning	JAN	Forrest	17 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1990 Every 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.