Alert archive / Arkansas / Tornado Warnings in 1998

Tornado Warning 49, NWS Memphis, TN

May 7, 1998Crittenden County, Arkansas

NWS Memphis, TN issued this tornado warning at May 7, 1998, 2:03 AM CDT for Crittenden County, Arkansas. It was in force for 37 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: May 7, 1998, 2:03 AM CDT (07:03 UTC)
Expired: May 7, 1998, 2:40 AM CDT
In force: 37 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Crittenden County, AR

What was reported inside it

Time	Report	Where	Remark
May 7, 2:30 AM CDT	Thunderstorm Wind	Waverly, AR	A few trees were knocked 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
May 6, 10:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 7.1 hours before the alert went out and 53 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: 2412 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 918 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMEM 070703 RRA
TORMEM
ARC035-070740-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
203 AM CDT THU MAY 7 1998


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CRITTENDEN COUNTY IN NORTHEASTERN ARKANSAS

* UNTIL 240 AM CDT

* AT 203 AM CDT... DOPPLER RADAR INDICATED AND SPOTTERS REPORTED A
  TORNADO NEAR GILMORE MOVING EAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  TURRELL BY 210 AM 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
May 6, 9:08 PM CDT	Severe Thunderstorm Warning	MEG	Clay	47 min
May 6, 9:25 PM CDT	Severe Thunderstorm Warning	MEG	Greene	20 min
May 6, 9:49 PM CDT	Severe Thunderstorm Warning	MEG	Lawrence, Randolph	36 min
May 6, 10:28 PM CDT	Severe Thunderstorm Warning	MEG	Randolph	47 min
May 6, 10:52 PM CDT	Severe Thunderstorm Warning	MEG	Greene	48 min
May 6, 11:07 PM CDT	Tornado Warning	MEG	Greene	48 min
May 6, 11:17 PM CDT	Severe Thunderstorm Warning	MEG	Lawrence	48 min
May 7, 12:41 AM CDT	Severe Thunderstorm Warning	MEG	Poinsett	49 min
May 7, 1:14 AM CDT	Tornado Warning	MEG	Poinsett	51 min

Nearby

Tornado Warnings in Arkansas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.