Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 311, NWS Memphis, TN

June 15, 1998Itawamba County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jun 15, 1998, 7:49 PM CDT for Itawamba County, Mississippi. It was in force for 31 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 15, 1998, 7:49 PM CDT (00:49 UTC)
Expired: Jun 15, 1998, 8:20 PM CDT
In force: 31 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Itawamba County, MS

What was reported inside it

Time	Report	Where	Remark
Jun 15, 8:05 PM CDT	Thunderstorm Wind	Evergreen, MS	Several homes were damaged. Some trees were also blown down.

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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 15, 6:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.8 hours before the alert went out and 191 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: 2325 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.5

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, Jun 15, 7:25 PM CDT, 24 minutes before

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Local storm report, Jun 15, 7:25 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
725 PM CDT MON JUN 15 1998

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

0645 PM    BIG CREEK                 MS   1.75 INCH HAIL
06/15/98   CALHOUN                        GOLFBALL SIZE HAIL REPORTED
                                          BY SPOTTER

0645 PM    BIG CREEK                 MS   WIND DAMAGE
06/15/98   CALHOUN                        ROOF BLOWN OFF OF HOUSE
                                          REPORTED BY SPOTTER

0700 PM    DERMA                     MS   .88 INCH HAIL
06/15/98   CALHOUN                        NICKLE SIZE HAIL REPORTED
                                          BY SPOTTER

0700 PM    DERMA                     MS   WIND DAMAGE
06/15/98   CALHOUN                   MS   TREES DOWN REPORTED BY
                                          SPOTTER

0720 PM    HOUSTON                   MS   1.00 INCH HAIL
06/15/98   CHICKASAW                      QUARTER SIZE HAIL REPORTED
                                          BY SPOTTER

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 11:38 PM CDT	Severe Thunderstorm Warning	MEG	Dyer	47 min
Jun 16, 12:23 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Gibson	47 min
Jun 15, 7:16 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw	29 min
Jun 15, 7:36 PM CDT	Severe Thunderstorm Warning	MEG	Monroe	34 min
Jun 15, 8:20 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw	55 min
Jun 15, 11:31 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	34 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1998 Every severe thunderstorm warning in 1998

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.