Alert archive / Arkansas / Tornado Watches in 2001
Tornado Watch 813
The Storm Prediction Center issued this tornado watch at Nov 23, 2001, 11:00 PM CST for 53 counties in Arkansas; 14 counties in Missouri. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 23, 2001, 11:00 PM CST (05:00 UTC)
- Expired
- Nov 24, 2001, 3:00 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 67 counties
Arkansas County, AR, Ashley County, AR, Baxter County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lawrence County, AR, Lincoln County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Union County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Carter County, MO, Christian County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Reynolds County, MO, Ripley County, MO, Shannon County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO
The radar
The Little Rock radar (KLZK), 36 km from the middle of the area, began a volume at 05:03 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
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 11:15 PM CST | Tornado Warning | LZK | Searcy | 30 min |
| Nov 23, 11:20 PM CST | Severe Thunderstorm Warning | LZK | Clark, Hot Spring | 60 min |
| Nov 23, 11:20 PM CST | Severe Thunderstorm Warning | LZK | Garland, Perry | 60 min |
| Nov 23, 11:23 PM CST | Tornado Warning | LZK | Marion | 37 min |
| Nov 23, 11:33 PM CST | Tornado Warning | LZK | Baxter | 42 min |
| Nov 23, 11:46 PM CST | Severe Thunderstorm Warning | LZK | Conway, Van Buren | 44 min |
| Nov 24, 12:05 AM CST | Severe Thunderstorm Warning | LZK | Faulkner, Pulaski | 55 min |
| Nov 24, 12:05 AM CST | Severe Thunderstorm Warning | LZK | Saline | 55 min |
| Nov 24, 12:06 AM CST | Severe Thunderstorm Warning | LZK | Baxter | 24 min |
| Nov 24, 12:29 AM CST | Severe Thunderstorm Warning | LZK | Cleburne, Van Buren | 46 min |
| Nov 24, 12:37 AM CST | Severe Thunderstorm Warning | SGF | Howell | 38 min |
| Nov 24, 12:49 AM CST | Tornado Warning | JAN | Ashley | 41 min |
| Nov 24, 1:12 AM CST | Tornado Warning | LZK | White | 48 min |
| Nov 24, 1:16 AM CST | Tornado Warning | JAN | Chicot | 44 min |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 5.0 hours before the alert went out and 247 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.
- Mixed-layer CAPE
- 571 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 945 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 331 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 240450 SEL3 SPC WW 240445 ARZ000-MOZ000-240900- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 813 STORM PREDICTION CENTER NORMAN OK 1045 PM CST FRI NOV 23 2001 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF MUCH OF ARKANSAS SOUTHERN MISSOURI EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1100 PM UNTIL 300 AM 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 80 STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF EL DORADO ARKANSAS TO 50 MILES NORTH OF WEST PLAINS MISSOURI. 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 811...TORNADO WATCH NUMBER 812. WATCH NUMBER 811...812 WILL NOT BE IN EFFECT AFTER 1100 PM CST. DISCUSSION...INTENSE SQUALL LINE AND ISOLATED SUPERCELLS AHEAD OF LINE WILL CONTINUE TO TRACK EASTWARD ACROSS MUCH OF AR AND SOUTHERN MO. SHEAR PROFILES REMAIN FAVORABLE FOR ISOLATED TORNADOES...AS WELL AS DAMAGING WINDS AND HAIL. STORMS MAY BEGIN TO SLOWLY WEAKEN BY 3AM CST AS ACTIVITY MOVES INTO MORE STABLE LOW LEVEL AIRMASS. 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 24040. ...HART 372,0902 330,0912 330,0940 372,0931
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 6:00 PM CST | Tornado Watch | SPC | Benton, Boone, Carroll, Crawford, Franklin, Hempstead and 17 more | 5 hr |
| Nov 24, 1:15 AM CST | Tornado Watch | SPC | Ashley, Chicot, Desha, Drew, Lee, Phillips | 6 hr |
| Nov 24, 2:30 AM CST | Tornado Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Mississippi and 2 more | 5 hr |
| Nov 23, 7:30 PM CST | Tornado Watch | SPC | Barry, Barton, Camden, Cedar, Christian, Dade and 21 more | 5 hr |
Nearby
Tornado Watches in Arkansas, 2001Tornado Watches in Missouri, 2001Every 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.