Alert archive / Arkansas / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 149
The Storm Prediction Center issued this severe thunderstorm watch at Apr 24, 2002, 5:30 PM CDT for 23 counties in Arkansas; Dunklin County, Pemiscot County, Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 24, 2002, 5:30 PM CDT (22:30 UTC)
- Expired
- Apr 24, 2002, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 25 counties
Baxter County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead 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, Marion County, AR, Poinsett County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Dunklin County, MO, Pemiscot County, MO
The radar
The Little Rock radar (KLZK), 94 km from the middle of the area, began a volume at 22:33 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 |
|---|---|---|---|---|
| Apr 24, 6:18 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin | 27 min |
| Apr 24, 6:52 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin | 23 min |
| Apr 24, 7:26 PM CDT | Severe Thunderstorm Warning | MEG | Craighead, Poinsett | 34 min |
| Apr 24, 7:33 PM CDT | Severe Thunderstorm Warning | LZK | Jackson | 27 min |
| Apr 24, 7:48 PM CDT | Tornado Warning | MEG | Pemiscot | 27 min |
| Apr 24, 8:00 PM CDT | Severe Thunderstorm Warning | LZK | White | 30 min |
| Apr 24, 8:00 PM CDT | Severe Thunderstorm Warning | MEG | Poinsett | 45 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.5 hours before the alert went out and 205 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
- 1336 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 464 m²/s²
- 0-3 km storm-relative helicity
- 421 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 242206 SEL9 SPC WW 242202 ARZ000-MOZ000-250300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 149 STORM PREDICTION CENTER NORMAN OK 502 PM CDT WED APR 24 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN ARKANSAS THE MISSOURI BOOTHEEL EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 530 PM UNTIL 1000 PM CDT. 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 90 STATUTE MILES EAST AND WEST OF A LINE FROM 100 MILES SOUTHWEST OF WALNUT RIDGE ARKANSAS TO 30 MILES NORTH NORTHWEST OF WALNUT RIDGE ARKANSAS. 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 146...WW 147...WW 148... DISCUSSION...ISOLATED SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ALONG AND AHEAD OF SURFACE COLD FRONT OVER NORTHERN AR. VEERED LOW LEVEL WINDS AND HIGH CAPE VALUES SUGGEST THAT LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN THREAT. 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 28030. ...HART 363,0893 350,0903 350,0934 363,0924 WWUS20 KWNS 242206 SEL9 SPC WW 242202 ARZ000-MOZ000-250300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 149 STORM PREDICTION CENTER NORMAN OK 502 PM CDT WED APR 24 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN ARKANSAS THE MISSOURI BOOTHEEL EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 530 PM UNTIL 1000 PM CDT. 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 90 STATUTE MILES EAST AND WEST OF A LINE FROM 100 MILES SOUTHWEST OF WALNUT RIDGE ARKANSAS TO 30 MILES NORTH NORTHWEST OF WALNUT RIDGE ARKANSAS. 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 146...WW 147...WW 148... DISCUSSION...ISOLATED SEVERE THUNDERSTORMS WILL LIKELY DEVELOP ALONG AND AHEAD OF SURFACE COLD FRONT OVER NORTHERN AR. VEERED LOW LEVEL WINDS AND HIGH CAPE VALUES SUGGEST THAT LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN THREAT. 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 28030. ...HART 363,0893 350,0903 350,0934 363,0924
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Garland, Hempstead, Hot Spring, Howard, Little River, Montgomery and 8 more | 5 hr |
| Apr 24, 7:30 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 23 more | 6 hr |
| Apr 24, 10:15 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audrain, Boone, Callaway, Chariton, Clark and 24 more | 5 hr |
| Apr 24, 2:30 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Callaway, Cape Girardeau, Carter, Crawford and 36 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2002Severe Thunderstorm Watches in Missouri, 2002Every 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.