Alert archive / Illinois / Tornado Warnings in 1999
Tornado Warning 12, NWS Paducah, KY
NWS Paducah, KY issued this tornado warning at Jan 21, 1999, 7:37 PM CST for Williamson County, Illinois. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 21, 1999, 7:37 PM CST (01:37 UTC)
- Expired
- Jan 21, 1999, 8:25 PM CST
- In force
- 48 min
- Issued by
- NWS Paducah, KY
- Area
- Whole counties
County Williamson County, IL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 21, 4:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 271 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
- 435 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 349 m²/s²
- 0-3 km storm-relative helicity
- 479 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Paducah, KY wrote its last area forecast discussion before this tornado warning went out at Jan 21, 2:00 PM CST, 5 hours 37 minutes earlier.
Area forecast discussion, Jan 21, 2:00 PM CST, 5 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 200 PM CST THU JAN 21 1999 LATEST SURFACE ANALYSIS SHOWS AN AREA OF LOW PRESSURE OVER OKLAHOMA WITH A WARM FRONT EXTENDING ACROSS CNTRL MO AND SRN IL INTO NW KY. AIRMASS SOUTH OF THIS FRONT HAS BECOME MODERATELY UNSTABLE. TEMPERATURES AND DEWPOINTS IN THE 60S HAS RESULTED IN SURFACE-BASED CAPE VALUES OF 500 TO 1500 J/KG. 12Z UA SOUNDINGS SHOWED AIRMASS WAS STRONGLY CAPPED. HOWEVER...UPWARD VERTICAL MOTIONS ASSOCIATED WITH MID-LEVEL SHORTWAVE TROF MOVING ACROSS THE PLAINS HAS RESULTED IN CAP WEAKENING. THIS IS SEEN IN 18Z LZK AND JAN SOUNDINGS. SHOWERS AND THUNDERSTORMS ARE ONCE AGAIN BEGINNING TO DEVELOP ACROSS PORTIONS OF FA...GENERALLY INVOF WARM FRONT. WITH INSTABILITY IN PLACE AND CONTINUED UPWARD VERTICAL MOTION EXPECTED OVER REGION... EXPECT ADDITIONAL STORMS WILL DEVELOP WITH SOME OF THESE STORMS POSSIBLY BECOMING SEVERE. MODELS INDICATE THE SHORTWAVE TROF WILL SLOWLY NORTHEAST AWAY FROM REGION WHILE A SECOND STRONGER SHORTWAVE TROF DROPS INTO THE LONGWAVE TROF THAT HAS ALREADY DEVELOPED OVER THE SOUTHERN PLAINS. THIS SECOND SHORTWAVE TROF WILL THEN ROTATE EWD TOWARD THE FA FRI AND SATURDAY. AS A RESULT...A COLD FRONT WILL SWEEP ACROSS THE REGION FRI AFTN INTO FRIDAY NIGHT. MODELS CONTINUE TO SHOW A DRY PUNCH WILL MOVE ALSO INTO THE REGION LATE FRIDAY AFTN/EVENING. WITH INSTABILITY EXPECTED TO REMAIN IN PLACE AND WIND FIELDS ALSO EXPECTED TO INCREASE...BELIEVE THREAT OF SEVERE THUNDERSTORMS WILL INCREASE AS FRONT AND DRY PUNCH MOVE INTO REGION. CLOUDS SHOULD CONTINUE ACROSS THE FA UNTIL SATURDAY WITH WRN PORTIONS OF FA BEGINNING TO SEE SOME SUN BY EARLY SAT AFTN. A FEW SHOWERS MAY ALSO CONTINUE...MAINLY OVER NRN AND ERN SECTIONS OF FA EARLY SATURDAY. FWC/FAN TEMPERATURE GUIDANCE ARE IN CLOSE AGREEMENT. HOWEVER... BELIEVE LOWS TONIGHT WILL BE WARMER THAN GUIDANCE ACROSS SRN SECTIONS OF FA AS DEWPOINTS ARE CURRENTLY APPROACHING THE 60S. HIGHS TOMORROW MAY ALSO BE A FEW DEGREES WARMER THAN GUIDANCE. WILL HOLD OFF ON FLASH FLOOD WATCH ATTM AS CURRENT THINKING IS THAT HEAVY RAINS SHOULD GENERALLY BE FRIDAY AND FRIDAY NIGHT. .PAH...NONE. JH/JK
In the hours before
Local storm report, Jan 21, 5:55 PM CST, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
555 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0554 PM PERRYVILLE MO .75 INCH HAIL
01/21/99 PERRYLocal storm report, Jan 21, 6:03 PM CST, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
603 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0600 PM MOREHOUSE MO TORNADO
01/21/99 STODDARD SPOTTERS REPORTED W OF
MOREHOUSELocal storm report, Jan 21, 6:08 PM CST, 1 hour 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
608 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0602 PM MO .5 INCH HAIL
01/21/99 WAYNE MCGEELocal storm report, Jan 21, 6:15 PM CST, 1 hour 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
615 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0613 PM ORAN MO .75 INCH HAIL
01/21/99 SCOTTLocal storm report, Jan 21, 7:19 PM CST, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
719 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0713 PM ANNA IL TORNADO
01/21/99 UNION REPORTED BY IL STATE
POLICELocal storm report, Jan 21, 7:34 PM CST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
734 PM CST THU JAN 21 1999
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0732 PM MARION IL 1 INCH HAIL
01/21/99 WILLIAMSON REPORT FROM WSIL TV CREWThe office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 11:40 PM CST | Tornado Warning | PAH | Fulton | 35 min |
| Jan 21, 11:56 PM CST | Tornado Warning | PAH | Ballard, Carlisle | 49 min |
| Jan 22, 12:15 AM CST | Severe Thunderstorm Warning | PAH | McCracken | 45 min |
| Jan 22, 12:41 AM CST | Severe Thunderstorm Warning | PAH | Ballard, Carlisle | 34 min |
| Jan 22, 12:53 AM CST | Severe Thunderstorm Warning | PAH | McCracken | 37 min |
| Jan 22, 1:36 AM CST | Severe Thunderstorm Warning | PAH | Graves, McCracken | 39 min |
| Jan 22, 1:49 AM CST | Severe Thunderstorm Warning | PAH | Livingston | 41 min |
| Jan 22, 3:54 AM CST | Tornado Warning | PAH | Christian, Todd | 51 min |
| Jan 22, 6:35 AM CST | Severe Thunderstorm Warning | PAH | Trigg | 40 min |
| Jan 22, 6:52 AM CST | Severe Thunderstorm Warning | PAH | Christian | 53 min |
| Jan 22, 10:23 AM CST | Flash Flood Warning | PAH | Christian | 4 hr |
| Jan 22, 1:04 PM CST | Flash Flood Warning | PAH | Caldwell, Hopkins, Webster | 4 hr |
| Jan 22, 1:04 PM CST | Flash Flood Warning | PAH | Crittenden, Livingston, Lyon, Marshall | 4 hr |
| Jan 22, 1:04 PM CST | Flash Flood Warning | PAH | Union | 4 hr |
| Jan 22, 1:04 PM CST | Flash Flood Warning | PAH | Calloway, Trigg | 4 hr |
| Jan 22, 2:27 PM CST | Flash Flood Warning | PAH | Graves | 3 hr |
| Jan 22, 2:48 PM CST | Flash Flood Warning | PAH | Carlisle, Fulton, Hickman | 3 hr |
| Jan 22, 3:07 PM CST | Flash Flood Warning | PAH | Ballard, McCracken | 3 hr |
| Jan 22, 4:23 PM CST | Flash Flood Warning | PAH | Christian, Muhlenberg, Todd | 8 hr |
| Jan 22, 4:40 PM CST | Flash Flood Warning | PAH | Daviess, Henderson, McLean | 7 hr |
| Jan 22, 5:25 PM CST | Flash Flood Warning | PAH | Crittenden, Union, Webster | 7 hr |
| Jan 22, 5:25 PM CST | Flash Flood Warning | PAH | Livingston, Lyon, Marshall | 7 hr |
| Jan 22, 5:25 PM CST | Flash Flood Warning | PAH | Caldwell, Calloway, Trigg | 7 hr |
| Jan 22, 5:25 PM CST | Flash Flood Warning | PAH | Graves | 7 hr |
| Jan 22, 5:25 PM CST | Flash Flood Warning | PAH | Hopkins | 7 hr |
| Jan 22, 5:55 PM CST | Flash Flood Warning | PAH | Carlisle, Fulton, Hickman | 6 hr |
| Jan 22, 5:55 PM CST | Flash Flood Warning | PAH | Ballard, McCracken | 6 hr |
| Jan 21, 6:34 PM CST | Tornado Warning | PAH | Alexander | 46 min |
| Jan 21, 7:00 PM CST | Tornado Warning | PAH | Union | 50 min |
| Jan 21, 8:25 PM CST | Flash Flood Warning | PAH | Franklin, Jackson, Union, Williamson | 9 hr |
| Jan 21, 9:30 PM CST | Flash Flood Warning | PAH | Alexander | 8 hr |
| Jan 21, 9:30 PM CST | Flash Flood Warning | PAH | Perry | 8 hr |
| Jan 21, 9:44 PM CST | Tornado Warning | PAH | Union, Williamson | 31 min |
| Jan 21, 10:07 PM CST | Severe Thunderstorm Warning | PAH | Franklin | 33 min |
| Jan 21, 10:20 PM CST | Tornado Warning | PAH | Franklin, Hamilton | 50 min |
| Jan 21, 11:14 PM CST | Flash Flood Warning | PAH | Hamilton, Jefferson, Wayne | 6 hr |
| Jan 22, 12:05 AM CST | Severe Thunderstorm Warning | PAH | Johnson, Williamson | 55 min |
| Jan 22, 12:32 AM CST | Severe Thunderstorm Warning | PAH | Union | 28 min |
| Jan 22, 1:06 AM CST | Severe Thunderstorm Warning | PAH | Johnson, Pope | 39 min |
| Jan 22, 1:30 AM CST | Severe Thunderstorm Warning | PAH | Gallatin, Hardin, Saline | 30 min |
| Jan 22, 1:45 AM CST | Severe Thunderstorm Warning | PAH | White | 45 min |
| Jan 22, 5:25 AM CST | Flash Flood Warning | PAH | Alexander, Union | 6 hr |
| Jan 22, 5:25 AM CST | Flash Flood Warning | PAH | Jackson, Williamson | 6 hr |
| Jan 21, 6:18 PM CST | Tornado Warning | PAH | Stoddard | 32 min |
| Jan 21, 6:48 PM CST | Tornado Warning | PAH | New Madrid, Stoddard | 47 min |
| Jan 21, 6:58 PM CST | Tornado Warning | PAH | Butler | 47 min |
| Jan 21, 7:45 PM CST | Tornado Warning | PAH | Butler, Stoddard, Wayne | 45 min |
| Jan 21, 7:50 PM CST | Flash Flood Warning | PAH | Cape Girardeau, Scott, Stoddard | 9 hr |
| Jan 21, 9:30 PM CST | Flash Flood Warning | PAH | Bollinger, Butler, Wayne | 8 hr |
| Jan 21, 9:30 PM CST | Flash Flood Warning | PAH | Perry | 8 hr |
| Jan 21, 9:30 PM CST | Flash Flood Warning | PAH | Ripley | 8 hr |
| Jan 21, 9:31 PM CST | Severe Thunderstorm Warning | PAH | New Madrid, Stoddard | 49 min |
| Jan 21, 10:00 PM CST | Tornado Warning | PAH | Scott | 35 min |
| Jan 21, 10:23 PM CST | Tornado Warning | PAH | Butler, Stoddard | 62 min |
| Jan 21, 11:13 PM CST | Severe Thunderstorm Warning | PAH | New Madrid | 32 min |
| Jan 21, 11:24 PM CST | Severe Thunderstorm Warning | PAH | Scott | 36 min |
| Jan 21, 11:30 PM CST | Tornado Warning | PAH | New Madrid | 30 min |
| Jan 21, 11:34 PM CST | Severe Thunderstorm Warning | PAH | Stoddard | 41 min |
| Jan 21, 11:38 PM CST | Tornado Warning | PAH | Mississippi | 37 min |
| Jan 22, 5:25 AM CST | Flash Flood Warning | PAH | Butler, Stoddard | 6 hr |
Nearby
Tornado Warnings in Illinois, 1999Every tornado warning in 1999Tornadoes in 1999
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.