Alert archive / Illinois / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 280
The Storm Prediction Center issued this severe thunderstorm watch at May 12, 2000, 8:15 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 12, 2000, 8:15 PM CDT (01:15 UTC)
- Expired
- May 13, 2000, 1:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Dubois County, IN, Gibson County, IN, Orange County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 9:11 PM CDT | Tornado Warning | PAH | Wayne | 64 min |
| May 12, 9:21 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 39 min |
| May 12, 10:08 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash | 52 min |
| May 12, 10:23 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger, Stoddard | 52 min |
| May 12, 10:26 PM CDT | Severe Thunderstorm Warning | PAH | Union | 19 min |
| May 12, 10:33 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 17 min |
| May 12, 10:38 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 37 min |
| May 12, 10:42 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 33 min |
| May 12, 11:48 PM CDT | Severe Thunderstorm Warning | PAH | Mississippi | 27 min |
| May 12, 11:49 PM CDT | Severe Thunderstorm Warning | LMK | Dubois | 26 min |
| May 13, 12:04 AM CDT | Severe Thunderstorm Warning | PAH | Carlisle, Hickman | 41 min |
| May 13, 12:07 AM CDT | Severe Thunderstorm Warning | LMK | Orange | 33 min |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 1.3 hours before the alert went out and 276 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
- 2626 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
655 WWUS9 KMKC 130100 SEL0 MKC WW 130050 ILZ000-INZ000-KYZ000-MOZ000-130600- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 280 STORM PREDICTION CENTER NORMAN OK 750 PM CDT FRI MAY 12 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHERN ILLINOIS SOUTHWEST INDIANA WESTERN KENTUCKY SOUTHEAST MISSOURI EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 815 PM UNTIL 100 AM 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 75 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTHEAST OF POPLAR BLUFF MISSOURI TO 40 MILES NORTH NORTHWEST OF EVANSVILLE INDIANA. 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. OTHER WATCH INFORMATION... CONTINUE...WW 271...WW 272...WW 273...WW 274...WW 275...WW 277...WW 278...WW 279... DISCUSSION...LINE OF THUNDERSTORMS INTENSIFYING OVER SOUTHERN MO WILL CONTINUE TO PRODUCE LARGE HAIL AND DAMAGING WINDS AS IT MOVES EWD TOWARD THE MS RIVER. 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 26030. ...VESCIO 383,0862 362,0884 362,0912 383,0891
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 11:15 PM CDT | Severe Thunderstorm Watch | SPC | Gallatin, Hardin, Massac, Pope, Pulaski | 6 hr |
| May 13, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 73 more | 6 hr |
| May 12, 8:45 PM CDT | Severe Thunderstorm Watch | SPC | Dunklin, Pemiscot | 5 hr |
| May 12, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Dunklin, Pemiscot | 6 hr |
Nearby
Severe Thunderstorm Watches in Illinois, 2000Severe Thunderstorm Watches in Kentucky, 2000Severe Thunderstorm Watches in Missouri, 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.