Alert archive / Arkansas / Tornado Watches in 2004

Tornado Watch 876

November 1, 20044 states

The Storm Prediction Center issued this tornado watch at Nov 1, 2004, 2:35 PM CST for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Nov 1, 2004, 2:35 PM CST (20:35 UTC)
Expired: Nov 1, 2004, 8:00 PM CST
In force: 5 hr
Issued by: the Storm Prediction Center

All 26 counties

Crittenden County, AR, Cross County, AR, Desha County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, St. Francis County, AR, Dunklin County, MO, Pemiscot County, MO, Bolivar County, MS, Coahoma County, MS, DeSoto County, MS, Panola County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Dyer County, TN, Fayette County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 80 km from the middle of the area, began a volume at 20:38 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.

Warnings issued inside it

6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Nov 1, 2:35 PM CST	Tornado Warning	LZK	Desha, Drew	40 min
Nov 1, 3:19 PM CST	Severe Thunderstorm Warning	LZK	Desha	26 min
Nov 1, 3:41 PM CST	Severe Thunderstorm Warning	JAN	Bolivar	49 min
Nov 1, 3:44 PM CST	Tornado Warning	LZK	Desha	46 min
Nov 1, 4:28 PM CST	Severe Thunderstorm Warning	JAN	Bolivar	47 min
Nov 1, 5:11 PM CST	Flash Flood Warning	MEG	Craighead, Greene, Poinsett	2 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 8.6 hours before the alert went out and 43 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: 362 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 631 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

384 
WWUS20 KWNS 012038
SEL6  
SPC WW 012035
ARZ000-MOZ000-MSZ000-TNZ000-020200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 876
NWS STORM PREDICTION CENTER NORMAN OK
235 PM CST MON NOV 1 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       EASTERN ARKANSAS
       MISSOURI BOOTHEEL
       NORTHWEST MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 235 PM UNTIL 800
PM CST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 40 STATUTE MILES EAST AND WEST
OF A LINE FROM 105 MILES SOUTH SOUTHWEST OF MEMPHIS TENNESSEE TO
35 MILES NORTH NORTHWEST OF DYERSBURG TENNESSEE.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 875...

DISCUSSION...LINE OF STRONG/SEVERE STORMS OVER EASTERN AR WILL
CONTINUE TO TRACK EASTWARD INTO WESTERN TN/MS AND THE MO BOOTHEEL
THIS AFTERNOON.  MOIST AND MARGINALLY UNSTABLE AIRMASS...COUPLED
WITH STRONG LOW LEVEL VERTICAL SHEAR WILL MAINTAIN A RISK OF BOW
ECHOES AND SUPERCELLS CAPABLE OF DAMAGING WINDS AND ISOLATED
TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 22035.


...HART

333,0912 362,0902 362,0885 333,0895

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 1, 9:17 AM CST	Mesoscale Discussion	SPC	Bradley, Calhoun, Cleburne, Cleveland, Columbia, Dallas and 18 more	118 min
Nov 1, 10:00 AM CST	Tornado Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Cleveland, Cross and 16 more	6 hr
Nov 1, 1:11 PM CST	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Chicot, Cleveland, Cross and 8 more	94 min
Nov 1, 5:57 PM CST	Mesoscale Discussion	SPC	Crittenden, Cross, Desha, Lee, Mississippi, Phillips and 2 more	2 hr
Nov 1, 2:25 PM CST	Mesoscale Discussion	SPC	Dunklin, Mississippi, New Madrid, Pemiscot	95 min

Nearby

Tornado Watches in Arkansas, 2004 Tornado Watches in Mississippi, 2004 Tornado Watches in Tennessee, 2004 Every tornado watch in 2004

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.