Alert archive / Illinois / Tornado Warnings in 2014
Tornado Warning 9, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Apr 29, 2014, 11:44 AM CDT for Stephenson County, Illinois. It was in force for 31 min. 1 report 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
- Apr 29, 2014, 11:44 AM CDT (16:44 UTC)
- Expired
- Apr 29, 2014, 12:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.5 in
County Stephenson County, IL
The radar
The Quad Cities radar (KDVN), 113 km from the middle of the area, began a volume at 16:47 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 |
|---|---|---|---|
| Apr 29, 12:06 PM CDT | HAIL 0.25 | Freeport, IL |
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 12:00Z, 4.7 hours before the alert went out and 107 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
- 1071 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
904
WFUS53 KDVN 291644
TORDVN
ILC177-291715-
/O.NEW.KDVN.TO.W.0009.140429T1644Z-140429T1715Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1144 AM CDT TUE APR 29 2014
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL STEPHENSON COUNTY IN NORTHWEST ILLINOIS...
* UNTIL 1215 PM CDT
* AT 1138 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR FORRESTON...AND MOVING NORTH AT 30 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
* LOCATIONS IMPACTED INCLUDE...
FREEPORT...GERMAN VALLEY...CEDARVILLE...LENA...OAKDALE NATURE
PRESERVE...ALBERTUS AIRPORT...BOLTON...DAKOTA DORNINK AIRPORT...
SCIOTO MILLS...ELEROY...DAMASCUS...RED OAK...BUENA VISTA...MC
CONNELL...ORANGEVILLE...LAKE LEAQUANA STATE PARK AND ONECO.
OTHER LOCATIONS AFFECTED INCLUDE STEPHENSON COUNTY FAIRGROUNDS.
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.
&&
LAT...LON 4220 8948 4220 8975 4244 8989 4251 8962
4250 8960
TIME...MOT...LOC 1643Z 160DEG 27KT 4216 8959
TORNADO...RADAR INDICATED
HAIL...0.50IN
$$
GROSS2 follow-up statements
792
WWUS53 KDVN 291704
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1204 PM CDT TUE APR 29 2014
ILC177-291715-
/O.CON.KDVN.TO.W.0009.000000T0000Z-140429T1715Z/
STEPHENSON IL-
1204 PM CDT TUE APR 29 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR STEPHENSON COUNTY UNTIL
1215 PM CDT...
AT 1156 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED JUST SOUTHWEST OF FREEPORT...AND MOVING NORTH AT 30 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
LOCATIONS IMPACTED INCLUDE...
CEDARVILLE...LENA...DAKOTA DORNINK AIRPORT...SCIOTO MILLS...ELEROY...
DAMASCUS...RED OAK...BUENA VISTA...MC CONNELL...ORANGEVILLE...LAKE
LEAQUANA STATE PARK AND ONECO.
OTHER LOCATIONS AFFECTED INCLUDE STEPHENSON COUNTY FAIRGROUNDS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4220 8948 4220 8975 4244 8989 4251 8962
4250 8960
TIME...MOT...LOC 1703Z 160DEG 27KT 4230 8966
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
WOLF614
WWUS53 KDVN 291715
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1215 PM CDT TUE APR 29 2014
ILC177-291725-
/O.EXP.KDVN.TO.W.0009.000000T0000Z-140429T1715Z/
STEPHENSON IL-
1215 PM CDT TUE APR 29 2014
...THE TORNADO WARNING FOR STEPHENSON COUNTY HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 4220 8948 4220 8975 4244 8989 4251 8962
4250 8960
TIME...MOT...LOC 1715Z 160DEG 27KT 4238 8970
$$
WOLFThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 11:23 AM CDT | Special Weather Statement | DVN | Rock Island | 52 min |
Nearby
Tornado Warnings in Illinois, 2014Every tornado warning in 2014Tornadoes in 2014
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.