Alert archive / Illinois / Tornado Warnings in 2015
Tornado Warning 8, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Apr 9, 2015, 6:10 PM CDT for Carroll County, Illinois. It was in force for 20 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
- Apr 9, 2015, 6:10 PM CDT (23:10 UTC)
- Expired
- Apr 9, 2015, 6:30 PM CDT
- In force
- 20 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
County Carroll County, IL
The radar
The Quad Cities radar (KDVN), 73 km from the middle of the area, began a volume at 23:13 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 |
|---|---|---|---|
| Apr 9, 12:58 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.2 hours before the alert went out and 67 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
- 101 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 614 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 323 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
789
WFUS53 KDVN 092310
TORDVN
ILC015-092330-
/O.NEW.KDVN.TO.W.0008.150409T2310Z-150409T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
610 PM CDT THU APR 9 2015
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN CARROLL COUNTY IN NORTHWEST ILLINOIS...
* UNTIL 630 PM CDT
* AT 608 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR ARGO FAY...AND MOVING NORTHEAST AT 50 MPH.
HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
* THIS DANGEROUS STORM WILL BE NEAR...
CHADWICK AROUND 615 PM CDT.
MILLEDGEVILLE AROUND 620 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE HITT.
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.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!
&&
LAT...LON 4198 8969 4193 8994 4193 9007 4197 9009
4216 8969
TIME...MOT...LOC 2309Z 240DEG 41KT 4196 8999
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
MM/DC2 follow-up statements
511
WWUS53 KDVN 092323
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
623 PM CDT THU APR 9 2015
ILC015-092330-
/O.CON.KDVN.TO.W.0008.000000T0000Z-150409T2330Z/
CARROLL IL-
623 PM CDT THU APR 9 2015
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEAST CARROLL
COUNTY UNTIL 630 PM CDT...
AT 621 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CHADWICK...AND MOVING NORTHEAST AT 65 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EAST CENTRAL
CARROLL COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!
&&
LAT...LON 4194 8988 4202 8998 4216 8969 4198 8969
TIME...MOT...LOC 2322Z 242DEG 58KT 4202 8985
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
MM/DC259 WWUS53 KDVN 092329 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 629 PM CDT THU APR 9 2015 ILC015-092339- /O.EXP.KDVN.TO.W.0008.000000T0000Z-150409T2330Z/ CARROLL IL- 629 PM CDT THU APR 9 2015 ...THE TORNADO WARNING FOR SOUTHEASTERN CARROLL COUNTY WILL EXPIRE AT 630 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER...SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4194 8988 4202 8998 4216 8969 4198 8969 TIME...MOT...LOC 2329Z 242DEG 58KT 4207 8971 $$ MM/DC
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 11:13 PM CDT | Special Weather Statement | DVN | Putnam | 32 min |
| Apr 9, 1:08 PM CDT | Special Weather Statement | DVN | Bureau | 52 min |
| Apr 9, 2:57 PM CDT | Special Weather Statement | DVN | Whiteside | 18 min |
| Apr 9, 4:51 PM CDT | Severe Thunderstorm Warning | DVN | Hancock | 39 min |
| Apr 9, 5:27 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, McDonough | 48 min |
| Apr 9, 5:49 PM CDT | Tornado Warning | DVN | Carroll, Whiteside | 26 min |
| Apr 9, 6:10 PM CDT | Special Weather Statement | DVN | Mercer | 35 min |
| Apr 9, 6:39 PM CDT | Special Weather Statement | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 2 hr |
Nearby
Tornado Warnings in Illinois, 2015Every tornado warning in 2015Tornadoes in 2015
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.