Alert archive / Illinois / Tornado Watches in 2005
Tornado Watch 105
The Storm Prediction Center issued this tornado watch at Mar 30, 2005, 12:55 PM CST for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2005, 12:55 PM CST (18:55 UTC)
- Expired
- Mar 30, 2005, 8:00 PM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 66 counties
Bond County, IL, Boone County, IL, Bureau County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Cook County, IL, Crawford County, IL, Cumberland County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Jasper County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lawrence County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Marshall County, IL, Mason County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Moultrie County, IL, Ogle County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Richland County, IL, Sangamon County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Benton County, IN, Fountain County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Berrien County, MI, City of Saint Louis, MO
The radar
The Lincoln radar (KILX), 39 km from the middle of the area, began a volume at 18:56 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
53 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 1:25 PM CST | Severe Thunderstorm Warning | ILX | Knox, Peoria, Stark | 67 min |
| Mar 30, 1:58 PM CST | Severe Thunderstorm Warning | ILX | Fulton, Peoria | 62 min |
| Mar 30, 2:20 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 40 min |
| Mar 30, 2:41 PM CST | Tornado Warning | ILX | Peoria, Tazewell, Woodford | 34 min |
| Mar 30, 3:15 PM CST | Tornado Warning | ILX | Marshall, Woodford | 31 min |
| Mar 30, 3:16 PM CST | Tornado Warning | LOT | LaSalle, Livingston | 44 min |
| Mar 30, 3:19 PM CST | Severe Thunderstorm Warning | DVN | Bureau | 26 min |
| Mar 30, 3:31 PM CST | Severe Thunderstorm Warning | LOT | Ogle | 44 min |
| Mar 30, 3:41 PM CST | Tornado Warning | ILX | Woodford | 34 min |
| Mar 30, 3:50 PM CST | Severe Thunderstorm Warning | ILX | Sangamon | 25 min |
| Mar 30, 3:57 PM CST | Severe Thunderstorm Warning | ILX | Marshall | 48 min |
| Mar 30, 3:57 PM CST | Severe Thunderstorm Warning | ILX | Marshall | 48 min |
| Mar 30, 4:00 PM CST | Tornado Warning | LOT | LaSalle | 30 min |
| Mar 30, 4:07 PM CST | Severe Thunderstorm Warning | ILX | DeWitt, Logan | 38 min |
| Mar 30, 4:15 PM CST | Tornado Warning | LOT | Grundy, Kendall | 45 min |
| Mar 30, 4:23 PM CST | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 37 min |
| Mar 30, 4:27 PM CST | Severe Thunderstorm Warning | ILX | McLean | 48 min |
| Mar 30, 4:34 PM CST | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 56 min |
| Mar 30, 4:43 PM CST | Severe Thunderstorm Warning | ILX | Christian, Macon, Shelby | 49 min |
| Mar 30, 4:52 PM CST | Severe Thunderstorm Warning | LOT | DuPage, Will | 53 min |
| Mar 30, 5:20 PM CST | Severe Thunderstorm Warning | LOT | Cook | 55 min |
| Mar 30, 5:24 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Livingston, Will | 66 min |
| Mar 30, 5:31 PM CST | Severe Thunderstorm Warning | ILX | Piatt | 44 min |
| Mar 30, 5:32 PM CST | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 58 min |
| Mar 30, 5:40 PM CST | Severe Thunderstorm Warning | ILX | Logan, McLean | 35 min |
| Mar 30, 5:41 PM CST | Severe Thunderstorm Warning | LOT | LaSalle | 64 min |
| Mar 30, 5:43 PM CST | Severe Thunderstorm Warning | ILX | Tazewell | 47 min |
| Mar 30, 5:52 PM CST | Severe Thunderstorm Warning | DVN | Putnam | 24 min |
| Mar 30, 5:54 PM CST | Severe Thunderstorm Warning | ILX | Champaign | 36 min |
| Mar 30, 5:55 PM CST | Severe Thunderstorm Warning | ILX | Woodford | 39 min |
| Mar 30, 6:04 PM CST | Severe Thunderstorm Warning | LOT | DeKalb | 41 min |
| Mar 30, 6:13 PM CST | Severe Thunderstorm Warning | LOT | Cook | 62 min |
| Mar 30, 6:19 PM CST | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee | 56 min |
| Mar 30, 6:25 PM CST | Severe Thunderstorm Warning | DVN | Bureau | 20 min |
| Mar 30, 6:29 PM CST | Severe Thunderstorm Warning | ILX | Christian, Macon | 32 min |
| Mar 30, 6:30 PM CST | Severe Thunderstorm Warning | LOT | LaSalle | 60 min |
| Mar 30, 6:32 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 28 min |
| Mar 30, 6:38 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Kendall | 67 min |
| Mar 30, 6:39 PM CST | Severe Thunderstorm Warning | ILX | McLean | 37 min |
| Mar 30, 6:44 PM CST | Severe Thunderstorm Warning | ILX | DeWitt | 31 min |
| Mar 30, 6:47 PM CST | Severe Thunderstorm Warning | LSX | Fayette | 43 min |
| Mar 30, 6:50 PM CST | Severe Thunderstorm Warning | LSX | Bond, Randolph | 47 min |
| Mar 30, 6:55 PM CST | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 65 min |
| Mar 30, 6:59 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Washington | 61 min |
| Mar 30, 7:05 PM CST | Severe Thunderstorm Warning | LOT | Boone, McHenry | 55 min |
| Mar 30, 7:10 PM CST | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Kankakee, Livingston | 65 min |
| Mar 30, 7:22 PM CST | Severe Thunderstorm Warning | LSX | Fayette | 38 min |
| Mar 30, 7:31 PM CST | Severe Thunderstorm Warning | ILX | Champaign, McLean, Piatt | 59 min |
| Mar 30, 7:36 PM CST | Severe Thunderstorm Warning | ILX | Douglas, Moultrie | 39 min |
| Mar 30, 7:41 PM CST | Severe Thunderstorm Warning | LOT | Cook | 64 min |
| Mar 30, 7:46 PM CST | Severe Thunderstorm Warning | LSX | Marion | 74 min |
| Mar 30, 7:48 PM CST | Severe Thunderstorm Warning | ILX | Cumberland, Effingham | 42 min |
| Mar 30, 7:51 PM CST | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 24 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.9 hours before the alert went out and 24 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
- 1491 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 244 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 301854
SEL5
SPC WW 301854
ILZ000-INZ000-LMZ000-310200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 105
NWS STORM PREDICTION CENTER NORMAN OK
1255 PM CST WED MAR 30 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN AND CENTRAL ILLINOIS
WESTERN INDIANA
LAKE MICHIGAN
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1255 PM UNTIL
800 PM CST.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES NORTH NORTHWEST OF MEIGS
FIELD ILLINOIS TO 10 MILES SOUTH SOUTHWEST OF SALEM ILLINOIS. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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 103...WW 104...
DISCUSSION...AIRMASS HAS RAPIDLY DESTABILIZED NWD ACROSS WATCH AREA
AHEAD OF INTENSE SYSTEM BOTH SURFACE AND ALOFT. VERY STRONG SHEAR
PROFILES NOW IN PLACE IL AND WITH INHIBITION NEGLIGIBLE...SEVERE
STORMS EXPECTED TO RAPIDLY DEVELOP AHEAD OF COLD FRONT MOVING THRU
ERN MO INTO WRN IL. IN ADDITION TO TORNADIC SUPERCELLS...VERY LARGE
HAIL AND DAMAGING WINDS ARE EXPECTED.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 23045.
...HALES
422,0862 382,0873 382,0902 422,0892SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 10:46 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Carroll, Cass, Fulton, Hancock and 14 more | 119 min |
| Mar 30, 11:05 AM CST | Tornado Watch | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 15 more | 5 hr |
| Mar 30, 12:08 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Cass, Champaign, Christian, Clark and 49 more | 2 hr |
| Mar 30, 1:23 PM CST | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 15 more | 97 min |
| Mar 30, 2:15 PM CST | Tornado Watch | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 11 more | 6 hr |
| Mar 30, 3:18 PM CST | Mesoscale Discussion | SPC | Boone, Champaign, Clark, Coles, Cook, Crawford and 28 more | 117 min |
| Mar 30, 3:54 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Jo Daviess, Lee, McHenry and 4 more | 66 min |
| Mar 30, 5:24 PM CST | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Coles and 30 more | 2 hr |
Nearby
Tornado Watches in Illinois, 2005Tornado Watches in Indiana, 2005Tornado Watches in Michigan, 2005Every tornado watch in 2005
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.