Alert archive / Illinois / Tornado Warnings in 2007

Tornado Warning 10, NWS Quad Cities, IA

June 1, 2007Rock Island County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jun 1, 2007, 1:05 PM CDT for Rock Island County, Illinois. It was in force for 40 min. 3 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 1, 2007, 1:05 PM CDT (18:05 UTC)
Expired
Jun 1, 2007, 1:45 PM CDT
In force
40 min
Issued by
NWS Quad Cities, IA
Area
Counties, with a storm outline in the text

County Rock Island County, IL

The radar

The Quad Cities radar (KDVN), 21 km from the middle of the area, began a volume at 18:08 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

TimeReportWhereRemark
Jun 1, 1:26 PM CDTHAIL 1Rock Island, ILHAIL THE SIZE OF QUARTERS IN LOWER ROCK ISLAND.
Jun 1, 1:27 PM CDTHAIL 1Rock Island, ILHAIL THE SIZE OF NICKELS TO QUARTERS IN DOWNTOWN ROCK ISLAND.
Jun 1, 1:45 PM CDTTSTM WND DMGRock Island, ILTREES BLOWN DOWN ON 11TH STREET

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.

IssuedProductOfficeLasted
Jun 1, 12:35 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.1 hours before the alert went out and 24 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2007-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 259 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2007-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
259 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KDVN 011806
TORDVN
ILC161-011845-
/O.NEW.KDVN.TO.W.0010.070601T1805Z-070601T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
105 PM CDT FRI JUN 1 2007

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS...

* UNTIL 145 PM CDT.

* AT 104 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR TAYLOR RIDGE...OR ABOUT 10 MILES SOUTHWEST OF ROCK
  ISLAND...MOVING NORTH AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  6 MILES WEST OF OAK GROVE AROUND 110 PM CDT...
  6 MILES WEST OF MILAN AROUND 115 PM CDT...
  ROCK ISLAND AND 9 MILES WEST OF MOLINE AROUND 120 PM CDT...

THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 3 AND 4.

THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 7.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 11 AND 18.

THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM
OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4136 9084 4135 9057 4156 9029 4151 9055

$$
2 follow-up statements
000 
WWUS53 KDVN 011821
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
120 PM CDT FRI JUN 1 2007

ILC161-011845-
/O.CON.KDVN.TO.W.0010.000000T0000Z-070601T1845Z/
ROCK ISLAND IL-
120 PM CDT FRI JUN 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR ROCK
ISLAND COUNTY...

AT 116 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM WITH POSSIBLE TORNADO.  THIS TORNADO WAS 
LOCATED APPROXIMATELY NEAR ROCK ISLAND...MOVING NORTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  QUAD-CITY AIRPORT AROUND 125 PM CDT...
  MOLINE AND 6 MILES NORTHWEST OF COAL VALLEY AROUND 130 PM CDT...
  EAST MOLINE AND SILVIS HEIGHTS AROUND 135 PM CDT...
  SILVIS...WOODS AIRPORT AND 6 MILES NORTHWEST OF CARBON CLIFF 
  AROUND 140 PM CDT...

THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 3 AND 4.

THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 7.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 11 AND 18.

THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM
OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4136 9084 4135 9057 4156 9029 4151 9055

$$

12/50
000 
WWUS53 KDVN 011847
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
147 PM CDT FRI JUN 1 2007

ILC161-011857-
/O.EXP.KDVN.TO.W.0010.000000T0000Z-070601T1845Z/
ROCK ISLAND IL-
147 PM CDT FRI JUN 1 2007

...THE TORNADO WARNING FOR ROCK ISLAND COUNTY EXPIRES AT 145 PM
CDT...

THE TORNADO THREAT HAS DIMINISHED. THEREFORE THE TORNADO WARNING HAS 
BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
EASTERN IOWA.

LAT...LON 4136 9084 4135 9057 4156 9029 4151 9055

$$

12/50

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 4:03 AM CDTDense Fog AdvisoryDVNBureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more5 hr
Jun 1, 1:31 PM CDTSevere Thunderstorm WarningDVNMcDonough, Warren59 min
Jun 1, 1:44 PM CDTSevere Thunderstorm WarningDVNRock Island47 min
Jun 1, 1:50 PM CDTSevere Thunderstorm WarningDVNWhiteside55 min
Jun 1, 2:05 PM CDTSevere Thunderstorm WarningDVNHenry55 min
Jun 1, 2:33 PM CDTSevere Thunderstorm WarningDVNCarroll57 min
Jun 1, 2:36 PM CDTTornado WarningDVNJo Daviess54 min
Jun 1, 3:14 PM CDTTornado WarningDVNWhiteside61 min
Jun 1, 3:44 PM CDTTornado WarningDVNStephenson61 min
Jun 1, 4:26 PM CDTSevere Thunderstorm WarningDVNBureau64 min

Nearby

Tornado Warnings in Illinois, 2007Every tornado warning in 2007Tornadoes in 2007

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.