Alert archive / Mississippi / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 99, NWS Jackson, MS

March 31, 2002Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 31, 2002, 1:52 AM CST for Yazoo County, Mississippi. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 31, 2002, 1:52 AM CST (07:52 UTC)
Expired: Mar 31, 2002, 2:30 AM CST
In force: 38 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Yazoo County, MS

What was reported inside it

Time	Report	Where	Remark
Mar 31, 2:25 AM CST	Hail 0.75	Benton, 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 31, 12:00 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 7.9 hours before the alert went out and 65 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: 295 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 310752
SVRJAN
MSC163-310830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
152 AM CST SUN MAR 31 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  YAZOO COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 230 AM CST

* AT 152 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF YAZOO CITY...MOVING
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL...
  BE NEAR YAZOO CITY AT 200 AM CST
  BE NEAR EDEN AT 210 AM CST

HAIL TO THE SIZE OF QUARTERS AND TORRENTIAL RAIN ARE EXPECTED 
WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER WHILE THE STORM 
PASSES.

LAT...LON 3284 9061 3267 9053 3285 9001 3298 9032

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.

NWS Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 30, 10:15 PM CST, 3 hours 37 minutes earlier.

Area forecast discussion, Mar 30, 10:15 PM CST, 3 hours 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
1015 PM CST SAT MAR 30 2002

THREAT OF SEVERE WEATHER CONTINUES THROUGH MIDNIGHT. UPDATED TEMP
FORECASTS MAINLY NRN ZONES. NEXT ROUND OF WEATHER MOVING EAST FROM
TX/LA. OTHERWISE...CURRENT FORECAST ON TRACK FOR REMAINDER OF
TONIGHT.

.JAN...
AR...FLASH FLOOD WATCH ASHLEY AND CHICOT COUNTIES.
LA...TORNADO WATCH 62 FOR CATAHOULA...FRANKLIN...MOREHOUSE...AND
RICHLAND PARISHES
MS...SEVERE THUNDERSTORMS WATCH 61 FOR MUCH OF CENTRAL AND SOUTH
MISSISSIPPI/FLASH FLOOD WATCH ALONG AND NORTH OF GREENVILLE TO
LEXINGTON TO KOSCIUSKO TO MACON LINE.

In the hours before

Local storm report, Mar 30, 9:02 PM CST, 4 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
902 PM CST SAT MAR 30 2002

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0835 PM    7W POCAHANTAS             MS   0.75 INCH HAIL
03/30/02   HINDS                          REPORTED BY HINDS COUNTY
                                          EMA.

0715 PM    PORT GIBSON               MS   1.00 INCH HAIL
03/30/02   CLAIBORNE

0745 PM    WINNSBORO                 LA   WIND DAMAGE
03/30/02   FRANKLIN LA                    SEVERAL TREES AND LARGE
                                          LIMBS WERE BLOWN DOWN.
                                          LIMBS WERE BLOCKING A FEW
                                          ROADS AND HAD TO BE
                                          REMOVED.

0745 PM    BASKIN                    LA   WIND DAMAGE
03/30/02   FRANKLIN LA                    THE PORCH OF A HOUSE WAS
                                          DAMAGED BY STRONG WINDS.
                                          A BARN HAD PART OF ITS
                                          ROOF PEELED BACK.

Local storm report, Mar 31, 12:00 AM CST, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1200 AM CST SUN MAR 31 2002

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0855 PM    FLORA                     MS   1.75 INCH HAIL
03/30/02   MADISON                        REPORTED BY MADISON
                                          COUNTY SHERIFFS OFFICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 6:00 PM CST	Severe Thunderstorm Warning	JAN	Attala, Holmes	30 min
Mar 30, 7:05 PM CST	Severe Thunderstorm Warning	JAN	Claiborne	25 min
Mar 30, 7:19 PM CST	Tornado Warning	JAN	Claiborne	41 min
Mar 30, 7:43 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Warren	47 min
Mar 30, 8:22 PM CST	Severe Thunderstorm Warning	JAN	Yazoo	38 min
Mar 30, 8:27 PM CST	Severe Thunderstorm Warning	JAN	Hinds, Madison	33 min
Mar 30, 8:50 PM CST	Tornado Warning	JAN	Madison	25 min
Mar 30, 9:00 PM CST	Severe Thunderstorm Warning	JAN	Yazoo	45 min
Mar 30, 9:46 PM CST	Severe Thunderstorm Warning	JAN	Holmes	29 min
Mar 30, 10:17 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Holmes	28 min
Mar 31, 12:14 AM CST	Severe Thunderstorm Warning	JAN	Issaquena, Washington	46 min
Mar 31, 12:45 AM CST	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Sunflower	45 min
Mar 31, 1:04 AM CST	Severe Thunderstorm Warning	JAN	Issaquena	26 min
Mar 31, 1:14 AM CST	Severe Thunderstorm Warning	JAN	Leflore	46 min
Mar 31, 1:27 AM CST	Severe Thunderstorm Warning	JAN	Warren	18 min
Mar 31, 1:43 AM CST	Flash Flood Warning	JAN	Bolivar, Humphreys, Issaquena, Leflore, Sharkey, Sunflower and 1 more	4 hr
Mar 31, 2:09 AM CST	Flash Flood Warning	JAN	Carroll, Grenada, Holmes, Montgomery	4 hr
Mar 31, 2:17 AM CST	Severe Thunderstorm Warning	JAN	Grenada, Montgomery	43 min
Mar 31, 2:50 AM CST	Severe Thunderstorm Warning	JAN	Franklin	40 min
Mar 31, 3:08 AM CST	Flash Flood Warning	JAN	Adams, Franklin	3 hr
Mar 31, 4:55 AM CST	Flash Flood Warning	JAN	Jefferson	2 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 2002 Every severe thunderstorm warning in 2002

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.