Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 49, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 16, 2012, 5:31 PM CDT for Clark County, Missouri; Hancock County, Henderson County, Illinois; Des Moines County, Lee County, Iowa. It was in force for 44 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 16, 2012, 5:31 PM CDT (22:31 UTC)
- Expired
- Jun 16, 2012, 6:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Des Moines County, IA, Lee County, IA, Hancock County, IL, Henderson County, IL, Clark County, MO
The radar
The Quad Cities radar (KDVN), 146 km from the middle of the area, began a volume at 22:32 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 16, 6:05 PM CDT | TSTM WND DMG | Burlington, IA | TOP HALF OF 14 INCH DIAMETER TREE BLOWN ONTO STREET BLOCKING 3 LANES OF TRAFFIC AT 1110 SPRING STREET. TIME ESTIMATED. |
| Jun 16, 6:07 PM CDT | TSTM WND GST 45 | Fort Madison Municipal, IA | |
| Jun 16, 6:10 PM CDT | TSTM WND DMG | Burlington, IA | DELAYED REPORT - TIME ESTIMATED - A HOUSE JUST WEST OF THE BURLINGTON AIRPORT WAS DAMAGED WHEN HALF OF A TREE FELL UPON THE HOUSE |
| Jun 16, 6:10 PM CDT | NON-TSTM WND GST 49 | Burlington, IA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 16, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 150 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
- 208 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
330
WUUS53 KDVN 162231
SVRDVN
IAC057-111-ILC067-071-MOC045-162315-
/O.NEW.KDVN.SV.W.0049.120616T2231Z-120616T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
531 PM CDT SAT JUN 16 2012
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN CLARK COUNTY IN NORTHEAST MISSOURI...
SOUTHERN DES MOINES COUNTY IN SOUTHEAST IOWA...
LEE COUNTY IN SOUTHEAST IOWA...
HANCOCK COUNTY IN WEST CENTRAL ILLINOIS...
SOUTHERN HENDERSON COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 615 PM CDT.
* AT 528 PM CDT...TRAINED SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS AROUND 60 MPH.
THESE STORMS WERE LOCATED APPROXIMATELY ALONG A LINE EXTENDING FROM
PILOT GROVE TO 10 MILES SOUTHWEST OF WAYLAND...OR ALONG A LINE
EXTENDING FROM 13 MILES SOUTH OF MOUNT PLEASANT TO 8 MILES SOUTH OF
KAHOKA...AND MOVING EAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ST.
PAUL...DONNELLSON...FRANKLIN...ST. FRANCISVILLE...WEST POINT...NEW
BOSTON...DENMARK...MONTROSE...ALEXANDRIA...NAUVOO...FORT MADISON...
WARSAW...KEOKUK...IOWA ARMY AMMUNITION PLANT...NIOTA...HAMILTON...
WEST BURLINGTON...TERRE HAUTE...GULF PORT...GLADSTONE...CARMAN...
FERRIS...DISCO...DALLAS CITY...COLUSA...CARTHAGE...BURNSIDE...
ADRIAN AND BURLINGTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY
FROM WINDOWS.
&&
LAT...LON 4019 9150 4021 9152 4024 9151 4025 9177
4081 9155 4081 9142 4079 9137 4094 9084
4019 9112
TIME...MOT...LOC 2230Z 270DEG 24KT 4078 9154 4031 9172
WIND...HAIL 60MPH <1.00IN
$$
SHEETS2 follow-up statements
799
WWUS53 KDVN 162254
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
554 PM CDT SAT JUN 16 2012
MOC045-162259-
/O.CAN.KDVN.SV.W.0049.000000T0000Z-120616T2315Z/
CLARK MO-
554 PM CDT SAT JUN 16 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CLARK COUNTY IS
CANCELLED...
THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING DAMAGING WIND
HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE SEVERE THUNDERSTORM
WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
SATURDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND
NORTHEAST MISSOURI.
LAT...LON 4040 9104 4044 9148 4061 9146 4075 9144
4080 9141 4079 9137 4094 9084
TIME...MOT...LOC 2249Z 249DEG 36KT 4082 9136 4045 9145
$$
IAC057-111-ILC067-071-162315-
/O.CON.KDVN.SV.W.0049.000000T0000Z-120616T2315Z/
LEE IA-DES MOINES IA-HENDERSON IL-HANCOCK IL-
554 PM CDT SAT JUN 16 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHERN HANCOCK...SOUTHERN HENDERSON...SOUTHERN DES MOINES AND
EASTERN LEE COUNTIES...
AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS AROUND 60 MPH. THESE STORMS WERE LOCATED APPROXIMATELY ALONG A
LINE EXTENDING FROM 6 MILES NORTHWEST OF DENMARK TO MOOAR...OR ALONG
A LINE EXTENDING FROM 13 MILES SOUTHEAST OF MOUNT PLEASANT TO
KEOKUK...MOVING EAST AT 40 MPH.
DAMAGING WINDS OF 60 MPH AND TORRENTIAL RAINFALL CAN BE EXPECTED
WITH THIS LINE OF STORMS AS THEY MOVE ACROSS EASTERN PORTIONS OF LEE
COUNTY...SOUTHEAST DES MOINES COUNTY INTO PORTIONS OF HENDERSON AND
HANCOCK COUNTIES THROUGH 615 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM
FLOODING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
SATURDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND
NORTHEAST MISSOURI.
&&
LAT...LON 4040 9104 4044 9148 4061 9146 4075 9144
4080 9141 4079 9137 4094 9084
TIME...MOT...LOC 2249Z 249DEG 36KT 4082 9136 4045 9145
WIND...HAIL 60MPH <1.00IN
$$
SHEETS372
WWUS53 KDVN 162312
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
612 PM CDT SAT JUN 16 2012
IAC057-111-ILC067-071-162320-
/O.EXP.KDVN.SV.W.0049.000000T0000Z-120616T2315Z/
LEE IA-DES MOINES IA-HENDERSON IL-HANCOCK IL-
612 PM CDT SAT JUN 16 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HANCOCK...SOUTHERN
HENDERSON...SOUTHERN DES MOINES AND EASTERN LEE COUNTIES WILL EXPIRE
AT 615 PM CDT...
THE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER HAS
WEAKENED. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED
TO EXPIRE. HOWEVER...THE LINE OF THUNDERSTORMS EXTENDING ROUGHLY
FROM MUSCATINE TO BURLINGTON WILL BE CAPABLE OF PRODUCING WIND GUSTS
UP TO 50 MPH AND TORRENTIAL RAINFALL AS THEY MOVE INTO
MERCER...HENDERSON AND WARREN COUNTIES THROUGH 7 PM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
SATURDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND
NORTHEAST MISSOURI.
LAT...LON 4040 9104 4044 9148 4061 9146 4075 9144
4080 9141 4079 9137 4094 9084
TIME...MOT...LOC 2310Z 249DEG 36KT 4089 9110 4052 9119
$$
SHEETSThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 5:13 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Mercer | 47 min |
| Jun 16, 2:27 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry | 36 min |
| Jun 16, 4:25 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Lee, Van Buren, Washington | 65 min |
| Jun 16, 5:24 PM CDT | Flash Flood Warning | DVN | Jefferson, Van Buren | 4 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 2012Severe Thunderstorm Warnings in Iowa, 2012Severe Thunderstorm Warnings in Missouri, 2012Every severe thunderstorm warning in 2012
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.