Alert archive / Illinois / Tornado Warnings in 2010
Tornado Warning 51, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 21, 2010, 10:27 PM CDT for Adams County, Illinois; Lewis County, Missouri. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2010, 10:27 PM CDT (03:27 UTC)
- Expired
- Jun 21, 2010, 10:49 PM CDT
- In force
- 22 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Adams County, IL, Lewis County, MO
The radar
The Quad Cities radar (KDVN), 175 km from the middle of the area, began a volume at 03:28 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 9:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 3.5 hours before the alert went out and 179 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
- 2621 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 930 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.6
The text
As transmitted, in the capitals the NWS used until 2016.
012
WFUS53 KLSX 220327
TORLSX
ILC001-MOC111-220415-
/O.NEW.KLSX.TO.W.0051.100622T0327Z-100622T0415Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1027 PM CDT MON JUN 21 2010
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
NORTHEASTERN LEWIS COUNTY IN NORTHEAST MISSOURI...
* UNTIL 1115 PM CDT
* AT 1023 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTHWEST OF CANTON...AND MOVING EAST AT
25 MPH.
NUMEROUS FUNNEL CLOUDS HAVE BEEN REPORTED WITH THIS STORM AND A
TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW!
* LOCATIONS IMPACTED INCLUDE...
CANTON...MENDON...MEYER...LIMA AND URSA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 4025 9150 4020 9150 4020 9123 4002 9130
4015 9171 4026 9167
TIME...MOT...LOC 0325Z 282DEG 21KT 4020 9156
$$
KANOFSKY2 follow-up statements
409 WWUS53 KLSX 220343 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1043 PM CDT MON JUN 21 2010 MOC111-220353- /O.CAN.KLSX.TO.W.0051.000000T0000Z-100622T0415Z/ LEWIS MO- 1043 PM CDT MON JUN 21 2010 ...THE TORNADO WARNING FOR NORTHEASTERN LEWIS COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4020 9123 4004 9129 4013 9152 4020 9150 TIME...MOT...LOC 0343Z 282DEG 21KT 4018 9143 $$ ILC001-220415- /O.CON.KLSX.TO.W.0051.000000T0000Z-100622T0415Z/ ADAMS IL- 1043 PM CDT MON JUN 21 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN ADAMS COUNTY UNTIL 1115 PM CDT... AT 1040 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES NORTHEAST OF CANTON...MOVING EAST AT 25 MPH. LOCATIONS IMPACTED INCLUDE... MENDON...LIMA AND URSA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 4020 9123 4004 9129 4013 9152 4020 9150 TIME...MOT...LOC 0343Z 282DEG 21KT 4018 9143 $$ KANOFSKY
580 WWUS53 KLSX 220349 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1049 PM CDT MON JUN 21 2010 ILC001-220358- /O.CAN.KLSX.TO.W.0051.000000T0000Z-100622T0415Z/ ADAMS IL- 1049 PM CDT MON JUN 21 2010 ...THE TORNADO WARNING FOR NORTHWESTERN ADAMS COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 5 AM CDT. LAT...LON 4020 9123 4004 9129 4013 9152 4020 9150 TIME...MOT...LOC 0348Z 282DEG 21KT 4017 9139 $$ KANOFSKY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 1:31 AM CDT | Severe Thunderstorm Warning | LSX | Brown | 44 min |
| Jun 22, 3:07 AM CDT | Flash Flood Warning | LSX | Adams, Brown | 5 hr |
| Jun 22, 9:40 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 54 min |
| Jun 21, 8:57 PM CDT | Tornado Warning | LSX | Knox | 48 min |
| Jun 21, 9:15 PM CDT | Tornado Warning | LSX | Knox, Lewis | 45 min |
| Jun 21, 9:52 PM CDT | Tornado Warning | LSX | Lewis | 38 min |
| Jun 22, 3:23 AM CDT | River Flood Warning | LSX | Lewis | 3 days |
Nearby
Tornado Warnings in Illinois, 2010Tornado Warnings in Missouri, 2010Every tornado warning in 2010Tornadoes in 2010
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.