Alert archive / Arkansas / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 37
The Storm Prediction Center issued this severe thunderstorm watch at Feb 18, 2000, 5:00 AM CST for 58 counties in Arkansas; Bolivar County, Mississippi. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 18, 2000, 5:00 AM CST (11:00 UTC)
- Expired
- Feb 18, 2000, 11:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 59 counties
Arkansas County, AR, Baxter County, AR, Boone County, AR, Carroll County, AR, Clark County, AR, Clay County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Craighead County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Perry County, AR, Phillips County, AR, Pike County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sevier County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Bolivar County, MS
The radar
The Little Rock radar (KLZK), 42 km from the middle of the area, began a volume at 11:02 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 |
|---|---|---|---|---|
| Feb 18, 7:03 AM CST | Severe Thunderstorm Warning | LZK | Yell | 37 min |
| Feb 18, 7:17 AM CST | Severe Thunderstorm Warning | LZK | Marion | 33 min |
| Feb 18, 10:29 AM CST | Severe Thunderstorm Warning | LZK | Montgomery | 46 min |
| Feb 18, 10:34 AM CST | Severe Thunderstorm Warning | LZK | Yell | 36 min |
| Feb 18, 10:34 AM CST | Severe Thunderstorm Warning | SHV | Little River | 41 min |
| Feb 18, 10:48 AM CST | Severe Thunderstorm Warning | LZK | Conway, Pope | 47 min |
| Feb 18, 10:57 AM CST | Severe Thunderstorm Warning | LZK | Garland | 48 min |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 11.0 hours before the alert went out and 253 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 464 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 487 m²/s²
- 0-3 km storm-relative helicity
- 525 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS9 KMKC 181034 MKC WW 181034 ARZ000-181700- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 37 STORM PREDICTION CENTER NORMAN OK 434 AM CST FRI FEB 18 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF ARKANSAS EFFECTIVE THIS FRIDAY MORNING FROM 500 AM UNTIL 1100 AM CST. HAIL TO 1 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTHWEST OF PINE BLUFF ARKANSAS TO 65 MILES WEST 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. DISCUSSION...VERY STRONG LOW LEVEL JET ACROSS AR UP TO 70 KT AHEAD OF COLD FRONT MOVING THRU CENTRAL OK. WARM FRONT LIFTING RAPIDLY NWD THRU CENTRAL AR WITH MOIST MARGINALLY UNSTABLE WARM SECTOR. STORMS DEVELOPING RAPIDLY VICINITY OK/AR BORDER IN LOW LEVEL CONVERGENCE. WITH APPROACH OF MID/UPR LEVEL JET MAX OF 80-100 KT ACROSS OK/SRN KS...THE STORMS WILL QUICKLY DEVELOP DAMAGING WIND POTENTIAL AS THEY INTENSIFY AND MOVE EWD ACROSS AR. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 23050. ...HALES ;362,0901 333,0905 333,0942 362,0934f;
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 9:45 PM CST | Severe Thunderstorm Watch | SPC | Benton, Carroll | 5 hr |
| Feb 18, 11:00 AM CST | Tornado Watch | SPC | Calhoun, Clark, Cleburne, Cleveland, Columbia, Conway and 28 more | 5 hr |
| Feb 18, 2:00 PM CST | Tornado Watch | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Desha and 13 more | 5 hr |
| Feb 18, 5:30 PM CST | Tornado Watch | SPC | Alcorn, Attala, Calhoun, Chickasaw, Choctaw, Clay and 14 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2000Severe Thunderstorm Watches in Mississippi, 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.