Alert archive / Illinois / Tornado Warnings in 2015
Tornado Warning 9, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 24, 2015, 7:04 PM CDT for Mercer County, Rock Island County, Illinois. It was in force for 26 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
- May 24, 2015, 7:04 PM CDT (00:04 UTC)
- Expired
- May 24, 2015, 7:30 PM CDT
- In force
- 26 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
Counties Mercer County, IL, Rock Island County, IL
The radar
The Quad Cities radar (KDVN), 18 km from the middle of the area, began a volume at 00:04 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 |
|---|---|---|---|
| May 24, 5:34 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.1 hours before the alert went out and 20 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
- 210 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
783
WFUS53 KDVN 250004
TORDVN
ILC131-161-250030-
/O.NEW.KDVN.TO.W.0009.150525T0004Z-150525T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
704 PM CDT SUN MAY 24 2015
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
ROCK ISLAND COUNTY IN NORTHWESTERN ILLINOIS...
NORTHWESTERN MERCER COUNTY IN NORTHWESTERN ILLINOIS...
* UNTIL 730 PM CDT
* AT 702 PM CDT...A CONFIRMED TORNADO WAS LOCATED 5 MILES SOUTH OF
ILLINOIS CITY...MOVING NORTHEAST AT 45 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...TRAINED WEATHER SPOTTERS CONFIRMED TORNADO.
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.
* THE TORNADO WILL BE NEAR...
HAMLET AROUND 710 PM CDT.
ANDALUSIA...REYNOLDS AND TAYLOR RIDGE AROUND 715 PM CDT.
BUFFALO AROUND 720 PM CDT.
MILAN AND OAK GROVE AROUND 725 PM CDT.
MOLINE...ROCK ISLAND...EAST MOLINE...SILVIS...COAL VALLEY AND
RIVERDALE AROUND 730 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SILVIS
HEIGHTS...COYNE CENTER...INDIAN BLUFF PARK...PREEMPTION...MARSTON...
ROCK ISLAND ARSENAL...FRUITLAND...EDGINGTON...MOLINE QUAD-CITY
AIRPORT AND PETERSVILLE.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 8.
INTERSTATE 280 BETWEEN MILE MARKERS 10 AND 18.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4146 9041 4146 9043 4135 9043 4119 9090
4135 9102 4146 9082 4145 9073 4146 9066
4151 9059 4153 9055 4152 9051 4152 9047
4155 9043 4148 9038
TIME...MOT...LOC 0002Z 240DEG 38KT 4133 9084
TORNADO...OBSERVED
HAIL...<.75IN
$$
UTTECH1 follow-up statement
932
WWUS53 KDVN 250028
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
728 PM CDT SUN MAY 24 2015
ILC131-161-250036-
/O.EXP.KDVN.TO.W.0009.000000T0000Z-150525T0030Z/
ROCK ISLAND IL-MERCER IL-
728 PM CDT SUN MAY 24 2015
...THE TORNADO WARNING FOR ROCK ISLAND AND NORTHWESTERN MERCER
COUNTIES WILL EXPIRE AT 730 PM CDT...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED NORTH
OUT OF THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO
EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTHWESTERN
ILLINOIS AND EAST CENTRAL IOWA.
LAT...LON 4146 9041 4146 9043 4135 9043 4119 9090
4135 9102 4146 9082 4145 9073 4146 9066
4151 9059 4153 9055 4152 9051 4152 9047
4155 9043 4148 9038
TIME...MOT...LOC 0023Z 240DEG 38KT 4133 9084
$$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.