Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 86, NWS Memphis, TN

April 14, 1998Weakley County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Apr 14, 1998, 12:10 AM CDT for Weakley County, Tennessee. It was in force for 45 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: Apr 14, 1998, 12:10 AM CDT (05:10 UTC)
Expired: Apr 14, 1998, 12:55 AM CDT
In force: 45 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Weakley County, TN

The radar

The Paducah radar (KPAH), 86 km from the middle of the area, began a volume at 05:13 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.

What was reported inside it

Time	Report	Where	Remark
Apr 14, 12:22 AM CDT	Hail 1	Dresden, TN

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
Apr 13, 10:00 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 5.2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1788 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 466 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.

498 
WUUS1 KMEM 140512 RRA
SVRMEM
TNC183-140555-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1210 AM CDT TUE APR 14 1998


THE NATIONAL WEATHER SERVICE IN MEMPHIS TN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1255 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WESTERN TENNESSEE

   ...WEAKLEY COUNTY


AT 1208 AM CDT... DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS FROM PALMERSVILLE TO MARTIN TO NORTHWEST OF SHARON
MOVING TO THE SOUTHEAST AT 30 MPH. WINDS TO 60 MPH AND DIME SIZED
HAIL WAS REPORTED NEAR MARTIN AROUND MIDNIGHT. THIS STORM WILL
AFFECT DRESDEN..GLEASON AND GREENFIELD.

.A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS.



&

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, Apr 13, 7:45 PM CDT, 4 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
745 PM CDT MON APR 13 1998

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

0730 PM    PALATKA                   AR   1.75 INCH HAIL
04/13/98   CLAY                           HIGHWAY PATROL REPORTED
                                          GOLFBALL SIZE HAIL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 9:59 PM CDT	Severe Thunderstorm Warning	MEG	Obion	46 min
Apr 13, 11:00 PM CDT	Severe Thunderstorm Warning	MEG	Lake	30 min
Apr 13, 11:16 PM CDT	Tornado Warning	MEG	Lake, Obion	59 min
Apr 14, 12:31 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henry	64 min
Apr 14, 12:52 AM CDT	Severe Thunderstorm Warning	MEG	Gibson	48 min
Apr 14, 1:05 AM CDT	Severe Thunderstorm Warning	MEG	Shelby	60 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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; radar from the NEXRAD Level II archive.