Alert archive / Kentucky / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 36

March 25, 20024 states

The Storm Prediction Center issued this severe thunderstorm watch at Mar 25, 2002, 12:30 PM CST for 4 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Mar 25, 2002, 12:30 PM CST (18:30 UTC)
Expired: Mar 25, 2002, 4:00 PM CST
In force: 4 hr
Issued by: the Storm Prediction Center

All 27 counties

Craighead County, AR, Greene County, AR, Jackson County, AR, Mississippi County, AR, Poinsett County, AR, Calloway County, KY, Carlisle County, KY, Christian County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Lyon County, KY, Marshall County, KY, Trigg County, KY, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Crockett County, TN, Dyer County, TN, Gibson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 79 km from the middle of the area, began a volume at 18:29 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 12:00Z, 6.5 hours before the alert went out and 136 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: 4 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 217 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.

000 
WWUS20 KWNS 251813
SEL6  
SPC WW 251808
ARZ000-KYZ000-MOZ000-TNZ000-252200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 36
STORM PREDICTION CENTER NORMAN OK
1208 PM CST MON MAR 25 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   NORTHEAST ARKANSAS                           
   SOUTHWEST KENTUCKY                           
   FAR SOUTHEAST MISSOURI                           
   NORTHWEST TENNESSEE                          

EFFECTIVE THIS MONDAY AFTERNOON FROM 1230 PM UNTIL 400 PM CST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 30 MILES SOUTH OF JONESBORO ARKANSAS
TO 100 MILES NORTHEAST OF DYERSBURG TENNESSEE.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 35...

DISCUSSION...SUPERCELL NOW ELEVATED OVER NERN AR MAY BECOME MORE
SURFACE-BASED INVOF OUTFLOW BOUNDARY/FRONT EXTENDING INTO NWRN
TN/SWRN KY ATTM.  LARGE HAIL WILL REMAIN PRIMARY SEVERE THREAT...
THOUGH DAMAGING WIND THREAT WILL INCREASE AS STORM BECOMES MORE
SURFACE BASED.  OTHER SEVERE THUNDERSTORMS MAY DEVELOP OVER NRN AR
AND LIFT INTO THIS AREA LATER THIS AFTERNOON.


AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 25040.


...EVANS

352,0914 370,0891 370,0870 352,0893

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 24, 6:30 PM CST	Severe Thunderstorm Watch	SPC	Benton, Boone, Carroll	5 hr
Mar 24, 9:15 PM CST	Severe Thunderstorm Watch	SPC	Benton, Boone, Carroll, Crawford, Franklin, Johnson and 6 more	6 hr
Mar 25, 11:00 AM CST	Severe Thunderstorm Watch	SPC	Baxter, Boone, Clay, Cleburne, Conway, Crawford and 26 more	5 hr
Mar 25, 4:00 PM CST	Severe Thunderstorm Watch	SPC	Arkansas, Clark, Cleburne, Cleveland, Conway, Cross and 28 more	6 hr

Nearby

Severe Thunderstorm Watches in Kentucky, 2002 Severe Thunderstorm Watches in Tennessee, 2002 Severe Thunderstorm Watches in Arkansas, 2002 Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.