Alert archive / Mississippi / Tornado Warnings in 1998

Tornado Warning 39, NWS Memphis, TN

April 27, 1998Union County, Mississippi

NWS Memphis, TN issued this tornado warning at Apr 27, 1998, 7:05 PM CDT for Union County, Mississippi. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 27, 1998, 7:05 PM CDT (00:05 UTC)
Expired: Apr 27, 1998, 7:55 PM CDT
In force: 50 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Union County, MS

The radar

The Columbus AFB radar (KGWX), 91 km from the middle of the area, began a volume at 00:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.1 hours before the alert went out and 94 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: 21 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1140 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: -65 m²/s²
0-3 km storm-relative helicity: 26 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.

463 
WFUS1 KMEM 280004 RRA
TORMEM
MSC145-280055-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
705 PM CDT MON APR 27 1998


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN UNION COUNTY IN NORTHEASTERN MISSISSIPPI

* UNTIL 755 PM CDT

* AT 704 PM CDT... DOPPLER RADAR INDICATED A TORNADO SOUTHWEST OF
  HICKORY FLAT MOVING EAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE...
  BETWEEN HICKORY FLAT AND MRYTLE BY 715 PM CDT

* THIS STORM PRODUCED WIND DAMAGE AND LARGE HAIL IN POTTS CAMP AT 655
  PM CDT.

.IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO
BASEMENT IS AVAILABLE...SEEK SAFETY IN AN INTERIOR ROOM SUCH AS A
CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...OR CUSHIONS TO
COVER YOUR BODY. AVOID WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:00 PM CDT	Flash Flood Warning	MEG	Benton, Marshall	3 hr
Apr 27, 7:07 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma	33 min
Apr 27, 7:17 PM CDT	Severe Thunderstorm Warning	MEG	Tate	33 min
Apr 27, 7:18 PM CDT	Severe Thunderstorm Warning	MEG	Marshall	47 min
Apr 27, 7:26 PM CDT	Severe Thunderstorm Warning	MEG	Tippah	49 min
Apr 27, 7:38 PM CDT	Tornado Warning	MEG	Tippah	47 min
Apr 27, 7:44 PM CDT	Tornado Warning	MEG	Marshall	51 min
Apr 27, 7:48 PM CDT	Severe Thunderstorm Warning	MEG	Tunica	47 min
Apr 27, 7:52 PM CDT	Tornado Warning	MEG	Union	48 min
Apr 27, 8:24 PM CDT	Tornado Warning	MEG	Tippah	51 min
Apr 27, 8:30 PM CDT	Severe Thunderstorm Warning	MEG	Tallahatchie	30 min
Apr 27, 8:33 PM CDT	Tornado Warning	MEG	Benton, Marshall	47 min
Apr 27, 8:38 PM CDT	Flash Flood Warning	MEG	Benton, Marshall, Tippah	3 hr
Apr 27, 9:18 PM CDT	Severe Thunderstorm Warning	MEG	Benton	27 min
Apr 27, 9:29 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette	51 min
Apr 27, 10:21 PM CDT	Severe Thunderstorm Warning	MEG	Union	34 min
Apr 27, 10:32 PM CDT	Severe Thunderstorm Warning	MEG	Prentiss	58 min
Apr 28, 1:26 AM CDT	Flash Flood Warning	MEG	Benton, Marshall, Tippah	3 hr

Nearby

Tornado Warnings in Mississippi, 1998 Every tornado warning in 1998 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.