Alert archive / Arkansas / Tornado Watches in 2001

Tornado Watch 827

November 26, 20014 states

The Storm Prediction Center issued this tornado watch at Nov 26, 2001, 5:00 PM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 26, 2001, 5:00 PM CST (23:00 UTC)
Expired: Nov 26, 2001, 11:00 PM CST
In force: 6 hr
Issued by: the Storm Prediction Center

All 64 counties

Baxter County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Lonoke County, AR, Marion County, AR, Mississippi County, AR, Monroe County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Marshall County, MS, Prentiss County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Carroll County, TN, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 105 km from the middle of the area, began a volume at 22:59 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

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

Issued	Product	Office	Counties	Lasted
Nov 26, 5:29 PM CST	Severe Thunderstorm Warning	MEG	Benton, Marshall	46 min
Nov 26, 6:06 PM CST	Severe Thunderstorm Warning	LZK	Lonoke	34 min
Nov 26, 7:43 PM CST	Severe Thunderstorm Warning	LZK	Monroe	32 min
Nov 26, 9:11 PM CST	Flash Flood Warning	MEG	Tipton	2 hr
Nov 26, 10:17 PM CST	Severe Thunderstorm Warning	MEG	DeSoto, Tate	43 min
Nov 26, 10:26 PM CST	Tornado Warning	MEG	DeSoto	34 min
Nov 26, 10:39 PM CST	Severe Thunderstorm Warning	MEG	Marshall	51 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 11.0 hours before the alert went out and 106 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: 1812 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 307 m²/s²
0-3 km storm-relative helicity: 322 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 262238
SEL7  
SPC WW 262232
ARZ000-MOZ000-MSZ000-TNZ000-270500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 827
STORM PREDICTION CENTER NORMAN OK
432 PM CST MON NOV 26 2001

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

   MUCH OF NORTHERN AND CENTRAL ARKANSAS                          
   THE MISSOURI BOOTHEEL                           
   NORTHERN MISSISSIPPI                        
   WESTERN TENNESSEE                          

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 500 PM UNTIL 1100
PM CST.

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

THE TORNADO WATCH AREA IS ALONG AND 135 STATUTE MILES EAST AND WEST
OF A LINE FROM 60 MILES WEST OF OXFORD MISSISSIPPI TO 35 MILES
NORTHEAST OF WALNUT RIDGE ARKANSAS.

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 824...WW 825...WW 826...
NEW WW WILL BE ISSUED IN THE NEXT HOUR TO REPLACE WW 824 AND WW
826.

DISCUSSION...NUMEROUS SUPERCELL THUNDERSTORMS CONTINUE TO SLOWLY
INTENSIFY OVER SOUTHERN AR...WHILE NEW DEVELOPMENT OCCURS ACROSS
NORTHERN AR AND NORTHERN MS.  VERY STRONG LOW LEVEL VERTICAL SHEAR
IS EVIDENT ON MEG VAD PROFILE...WITH 3KM HELICITY VALUES OF 400+
M2/S2.  RICH LOW LEVEL MOISTURE AND INSTABILITY ARE ALSO LIFTING
NORTHWARD INTO WW AREA...INCREASING THE THREAT OF SUPERCELLS AND
TORNADOES.

AVIATION...TORNADOES AND 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 24035.

...HART

362,0880 342,0881 342,0925 362,0925

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 26, 1:00 PM CST	Tornado Watch	SPC	Ashley, Bradley, Calhoun, Clark, Cleveland, Columbia and 11 more	5 hr
Nov 26, 3:30 PM CST	Tornado Watch	SPC	Adams, Attala, Calhoun, Carroll, Chickasaw, Choctaw and 36 more	5 hr

Nearby

Tornado Watches in Arkansas, 2001 Tornado Watches in Tennessee, 2001 Tornado Watches in Mississippi, 2001 Every tornado watch in 2001

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.