Alert archive / Illinois / Tornado Warnings in 2011
Tornado Warning 12, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 15, 2011, 8:16 PM CDT for Henry County, Rock Island County, Whiteside County, Illinois. It was in force for 22 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 15, 2011, 8:16 PM CDT (01:16 UTC)
- Expired
- Jun 15, 2011, 8:38 PM CDT
- In force
- 22 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
Counties Henry County, IL, Rock Island County, IL, Whiteside County, IL
The radar
The Quad Cities radar (KDVN), 49 km from the middle of the area, began a volume at 01:16 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 8:19 PM CDT | TORNADO | 4 Nnw Erie, IL | TORNADO STILL ON GROUND. DEBRIS ON IL RT 88 AT ALBANY EXIT. |
| Jun 15, 8:19 PM CDT | TORNADO | Erie, IL | TORNADO STILL ON GROUND. DEBRIS ON IL RT 88. AT ALBANY EXIT. |
| Jun 15, 8:21 PM CDT | TORNADO | 1 N Erie, IL | TORNADO STILL ON GROUND. 72 MPH WIND GUST RECORDED. POWERLINES DOWN WITH POWER FLASHES. TORNADO POSSIBLY LIFTING VISUALLY. |
| Jun 15, 8:23 PM CDT | TORNADO | Erie, IL | SHINGLES OFF BANK AND METAL ROOFING OFF BUILDING IN TOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.3 hours before the alert went out and 43 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
- 33 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1318 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
492 WFUS53 KDVN 160116 TORDVN ILC073-161-195-160200- /O.NEW.KDVN.TO.W.0012.110616T0116Z-110616T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 816 PM CDT WED JUN 15 2011 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN HENRY COUNTY IN NORTHWEST ILLINOIS... NORTHEASTERN ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS... SOUTHWESTERN WHITESIDE COUNTY IN NORTHWEST ILLINOIS... * UNTIL 900 PM CDT. * AT 812 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO NEAR NEWTON CORNERS...OR 11 MILES SOUTHEAST OF CLINTON...MOVING SOUTHEAST AT 35 MPH. * THE TORNADO WILL BE NEAR... ERIE AROUND 820 PM CDT... SPRING HILL...PORTLAND CORNERS...DENROCK AND HAMILTON CORNERS AROUND 825 PM CDT... PROPHETSTOWN AROUND 830 PM CDT... LEON CORNERS AROUND 835 PM CDT... THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 12 AND 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4164 8981 4153 8995 4166 9026 4180 9012 TIME...MOT...LOC 0116Z 308DEG 31KT 4168 9010 $$
3 follow-up statements
004 WWUS53 KDVN 160124 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 824 PM CDT WED JUN 15 2011 ILC161-160134- /O.CAN.KDVN.TO.W.0012.000000T0000Z-110616T0200Z/ ROCK ISLAND IL- 824 PM CDT WED JUN 15 2011 ...THE TORNADO WARNING FOR NORTHEASTERN ROCK ISLAND COUNTY IS CANCELLED... THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING A TORNADO HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. HOWEVER...THIS STORM IS STILL CAPABLE OF PRODUCING. LAT...LON 4162 9013 4171 9007 4164 8981 4153 8995 TIME...MOT...LOC 0124Z 308DEG 31KT 4163 9003 $$ ILC073-195-160200- /O.CON.KDVN.TO.W.0012.000000T0000Z-110616T0200Z/ HENRY IL-WHITESIDE IL- 824 PM CDT WED JUN 15 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR SOUTH CENTRAL WHITESIDE AND NORTHEASTERN HENRY COUNTIES... AT 821 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO. THIS TORNADO WAS LOCATED APPROXIMATELY NEAR ERIE...OR 12 MILES SOUTHWEST OF MORRISON...MOVING SOUTHEAST AT 35 MPH. THE TORNADO WILL BE NEAR... PROPHETSTOWN AROUND 830 PM CDT... LEON CORNERS AROUND 835 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAIN MAY OBSCURE THE APPROACH OF THE TORNADO. TAKE SHELTER NOW! && LAT...LON 4162 9013 4171 9007 4164 8981 4153 8995 TIME...MOT...LOC 0124Z 308DEG 31KT 4163 9003 $$ ERVIN
019
WWUS53 KDVN 160130
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
830 PM CDT WED JUN 15 2011
ILC073-195-160200-
/O.CON.KDVN.TO.W.0012.000000T0000Z-110616T0200Z/
HENRY IL-WHITESIDE IL-
830 PM CDT WED JUN 15 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR SOUTH
CENTRAL WHITESIDE AND NORTHEASTERN HENRY COUNTIES...
AT 821 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO NEAR ERIE. THIS
TORNADO WAS LOCATED APPROXIMATELY NEAR SPRING HILL...OR 12 MILES
SOUTH OF MORRISON...MOVING SOUTHEAST AT 35 MPH.
THE TORNADO WILL BE NEAR...
LEON CORNERS AROUND 835 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAIN MAY OBSCURE THE APPROACH OF THE TORNADO. TAKE SHELTER NOW!
&&
LAT...LON 4162 9008 4167 9004 4163 8987 4154 8994
4153 8995
TIME...MOT...LOC 0130Z 308DEG 31KT 4161 8997
$$
ERVIN429
WWUS53 KDVN 160138
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
838 PM CDT WED JUN 15 2011
ILC073-195-160147-
/O.CAN.KDVN.TO.W.0012.000000T0000Z-110616T0200Z/
HENRY IL-WHITESIDE IL-
838 PM CDT WED JUN 15 2011
...THE TORNADO WARNING FOR SOUTH CENTRAL WHITESIDE AND NORTHEASTERN
HENRY COUNTIES IS CANCELLED...
THE THUNDERSTORM THAT PRODUCED A A TORNADO HAS WEAKENED. THEREFORE
THE TORNADO WARNING HAS BEEN CANCELLED.
HOWEVER...THIS STORM IS STILL CAPABLE OF PRODUCING HEAVY RAIN AND
SMALL HAIL.
LAT...LON 4162 9008 4167 9004 4163 8987 4154 8994
4153 8995
TIME...MOT...LOC 0137Z 308DEG 31KT 4157 8991
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island, Whiteside | 53 min |
| Jun 15, 8:50 PM CDT | Special Weather Statement | DVN | Bureau | 55 min |
Nearby
Tornado Warnings in Illinois, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.