Alert archive / Arkansas / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 184
The Storm Prediction Center issued this severe thunderstorm watch at Apr 20, 2000, 3:15 AM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 20, 2000, 3:15 AM CDT (08:15 UTC)
- Expired
- Apr 20, 2000, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 62 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, 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, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Alexander County, IL, Jackson County, IL, Perry County, IL, Randolph County, IL, Union County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Dunklin County, MO, Howell County, MO, Iron County, MO, Madison County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Perry County, MO, Phelps County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Tunica County, MS
The radar
The Little Rock radar (KLZK), 135 km from the middle of the area, began a volume at 08:15 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 3:15 AM CDT | Severe Thunderstorm Warning | SGF | Howell, Ozark | 45 min |
| Apr 20, 3:27 AM CDT | Severe Thunderstorm Warning | SGF | Dent, Shannon, Texas | 48 min |
| Apr 20, 3:38 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Gasconade | 52 min |
| Apr 20, 3:50 AM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 65 min |
| Apr 20, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 63 min |
| Apr 20, 4:18 AM CDT | Severe Thunderstorm Warning | SGF | Howell | 42 min |
| Apr 20, 4:25 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Searcy | 35 min |
| Apr 20, 4:40 AM CDT | Severe Thunderstorm Warning | LZK | Fulton, Izard | 50 min |
| Apr 20, 5:11 AM CDT | Severe Thunderstorm Warning | SGF | Oregon | 34 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 8.3 hours before the alert went out and 235 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
- 1428 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 12.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 12:30 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 14 more | 6 hr |
| Apr 19, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess | 4 hr |
| Apr 19, 10:00 PM CDT | Tornado Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, McDonough and 3 more | 6 hr |
| Apr 20, 12:45 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 28 more | 5 hr |
| Apr 20, 4:15 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Boone, Brown, Bureau, Calhoun and 61 more | 6 hr |
| Apr 20, 10:00 AM CDT | Tornado Watch | SPC | Bond, Champaign, Clark, Clay, Clinton, Coles and 30 more | 6 hr |
| Apr 19, 8:15 PM CDT | Tornado Watch | SPC | Adair, Andrew, Barton, Bates, Buchanan, Caldwell and 27 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2000Severe Thunderstorm Watches in Missouri, 2000Severe Thunderstorm Watches in Illinois, 2000Every severe thunderstorm watch in 2000
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.