Alert archive / Iowa / Tornado Warnings in 2014

Tornado Warning 18, NWS Quad Cities, IA

June 17, 2014Scott County, Iowa; Rock Island County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jun 17, 2014, 3:36 AM CDT for Scott County, Iowa; Rock Island County, Illinois. It was in force for 24 min. 10 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 17, 2014, 3:36 AM CDT (08:36 UTC)
Expired: Jun 17, 2014, 4:00 AM CDT
In force: 24 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Scott County, IA, Rock Island County, IL

The radar

The Quad Cities radar (KDVN), 2 km from the middle of the area, began a volume at 08:37 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 17, 3:40 AM CDT	TSTM WND DMG	2 W Walcott, IA	SEVERAL 5-6 INCH DIAMETER TREE LIMBS DOWN...TIME ESTIMATED FROM RADAR.
Jun 17, 3:50 AM CDT	TSTM WND DMG	1 Nnw Davenport, IA	TIME ESTIMATED. 6 INCH OAK LIMB DOWN AT THE NATIONAL GUARD ARMORY ON DIVISION STREET IN DAVENPORT.
Jun 17, 3:50 AM CDT	TSTM WND DMG	Davenport, IA	LARGE TREE BRANCH DOWN APPROX 10 INCHES IN DIAMETER AT 3440 DIVISION ST.
Jun 17, 3:55 AM CDT	TSTM WND DMG	1 N Davenport, IA	LARGE TREE LIMBS DOWN NEAR DIVISION AND 53RD ST...TIME ESTIMATED FROM RADAR.
Jun 17, 3:55 AM CDT	TSTM WND DMG	1 Ne Park View, IA	NUMEROUS TREES SNAPPED AND TREE LIMBS BLOWN DOWN IN AND AROUND THE SOUTHWEST CORNER OF SCOTT CO. PARK. TIME BASED ON RADAR. DELAYED REPORT.
Jun 17, 3:55 AM CDT	TSTM WND DMG	Park View, IA	10 INCH DIAMETER TREE SNAPPED OFF 5 FOOT OFF THE GROUND NEAR WATER TOWER.
Jun 17, 3:55 AM CDT	TSTM WND GST 60	1 N Davenport, IA
Jun 17, 3:57 AM CDT	TSTM WND GST 60	Park View, IA	SMALL TREE BRANCHES DOWN.
Jun 17, 4:00 AM CDT	TSTM WND DMG	5 Sw Mccausland, IA	BARN UNDER CONSTRUCTION BLOWN DOWN. TIME BASED ON RADAR. DELAYED REPORT.
Jun 17, 4:02 AM CDT	TSTM WND GST 57	2 Nw Moline, IL	MEASURED AT I-74 BRIDGE RWIS.

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, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 8.6 hours before the alert went out and 8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2074 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1135 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

027 
WFUS53 KDVN 170836
TORDVN
IAC163-ILC161-170900-
/O.NEW.KDVN.TO.W.0018.140617T0836Z-140617T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
336 AM CDT TUE JUN 17 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SCOTT COUNTY IN EAST CENTRAL IOWA...
  CENTRAL ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS...

* UNTIL 400 AM CDT

* AT 332 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR DURANT...AND MOVING EAST AT 65 MPH.

  HAZARD...TORNADO.

  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...
  ELDRIDGE AND DONAHUE AROUND 345 AM CDT.
  DAVENPORT AROUND 350 AM CDT.
  RAPIDS CITY AND HAMPTON AROUND 355 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE DAVENPORT MUNICIPAL AIRPORT...
ROCK ISLAND ARSENAL...ILLINIWEK PARK...PLEASANT VALLEY...PANORAMA
PARK...CAMPBELLS ISLAND...SILVIS HEIGHTS...CARBON CLIFF AND BARSTOW.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 279 AND 306.

THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 3.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

OTHER LOCATIONS AFFECTED INCLUDE ROCK ISLAND COUNTY FAIRGROUNDS...
MISSISSIPPI VALLEY FAIRGROUNDS AND CAMP CONESTOGA.

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 4151 9034 4151 9036 4148 9037 4147 9040
      4155 9079 4160 9079 4160 9089 4177 9089
      4176 9076 4174 9074 4174 9072 4175 9069
      4170 9029
TIME...MOT...LOC 0836Z 282DEG 57KT 4164 9083

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

SHEETS

3 follow-up statements

158 
WWUS53 KDVN 170846
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
346 AM CDT TUE JUN 17 2014

IAC163-ILC161-170900-
/O.CON.KDVN.TO.W.0018.000000T0000Z-140617T0900Z/
SCOTT IA-ROCK ISLAND IL-
346 AM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ROCK ISLAND AND
SCOTT COUNTIES UNTIL 400 AM CDT...

AT 341 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WALCOTT...AND MOVING EAST AT 50 MPH.

HAZARD...TORNADO.

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...
  HAMPTON AND BETTENDORF AROUND 355 AM CDT.
  RAPIDS CITY AND PORT BYRON AROUND 400 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE ROCK ISLAND ARSENAL...PLEASANT
VALLEY...ILLINIWEK PARK...PANORAMA PARK...CAMPBELLS ISLAND...SILVIS
HEIGHTS...CARBON CLIFF AND BARSTOW.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 285 AND 306.

THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 3.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

OTHER LOCATIONS AFFECTED INCLUDE ROCK ISLAND COUNTY FAIRGROUNDS AND
MISSISSIPPI VALLEY 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 4151 9034 4151 9036 4148 9037 4147 9040
      4155 9079 4160 9077 4176 9076 4174 9074
      4174 9072 4175 9069 4170 9029
TIME...MOT...LOC 0847Z 282DEG 57KT 4160 9062

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

169 
WWUS53 KDVN 170858
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
358 AM CDT TUE JUN 17 2014

IAC163-ILC161-170900-
/O.CON.KDVN.TO.W.0018.000000T0000Z-140617T0900Z/
SCOTT IA-ROCK ISLAND IL-
358 AM CDT TUE JUN 17 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN ROCK ISLAND
AND EASTERN SCOTT COUNTIES UNTIL 400 AM CDT...

AT 355 AM CDT...A LINE OF SEVERE STORMS WITH POSSIBLE TORNADOES 
EXTENDED FROM DAVENPORT TO JUST SOUTH OF MCCAUSLAND...MOVING EAST AT 
60 MPH.

HAZARD...TORNADO.

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 EASTERN SCOTT
AND NORTHEASTERN ROCK ISLAND COUNTIES.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 295 AND 306.

THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 2.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 2.

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 4151 9034 4153 9034 4153 9038 4153 9041
      4156 9059 4167 9058 4170 9056 4173 9055
      4170 9029
TIME...MOT...LOC 0857Z 282DEG 57KT 4157 9041

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

SHEETS

168 
WWUS53 KDVN 170906
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
406 AM CDT TUE JUN 17 2014

IAC163-ILC161-170914-
/O.EXP.KDVN.TO.W.0018.000000T0000Z-140617T0900Z/
SCOTT IA-ROCK ISLAND IL-
406 AM CDT TUE JUN 17 2014

...THE TORNADO WARNING FOR NORTHEASTERN ROCK ISLAND AND EASTERN SCOTT
COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE TORNADO WARNING HAS MOVED EAST OF THE 
AREA. 

STRONG THUNDERSTORMS MOVING THROUGH THE AREA ARE STILL CAPABLE OF 
PRODUCING WINDS UP TO 60 MPH. 

LAT...LON 4151 9034 4153 9034 4153 9038 4153 9041
      4156 9059 4167 9058 4170 9056 4173 9055
      4170 9029
TIME...MOT...LOC 0858Z 282DEG 57KT 4156 9039

$$

SHEETS
!

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 8:21 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware	54 min
Jun 16, 8:35 PM CDT	Tornado Warning	DVN	Buchanan	40 min
Jun 16, 9:14 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Delaware, Linn	61 min
Jun 16, 9:32 PM CDT	Tornado Warning Tornado observed	DVN	Delaware	28 min
Jun 16, 9:42 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	63 min
Jun 16, 9:47 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Linn	43 min
Jun 16, 10:02 PM CDT	Tornado Warning	DVN	Benton, Linn	28 min
Jun 16, 10:13 PM CDT	Tornado Warning	DVN	Benton, Linn	32 min
Jun 16, 10:27 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Jones, Linn	63 min
Jun 17, 2:18 AM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware, Dubuque, Iowa, Johnson and 4 more	59 min
Jun 17, 2:33 AM CDT	Severe Thunderstorm Warning	DVN	Iowa, Keokuk, Washington	27 min
Jun 17, 3:02 AM CDT	Special Weather Statement	DVN	Cedar, Clinton, Jackson, Johnson, Jones, Louisa and 3 more	58 min
Jun 17, 3:23 AM CDT	Special Weather Statement	DVN	Cedar, Clinton, Henry, Jackson, Jones, Louisa and 2 more	52 min
Jun 17, 3:28 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	32 min
Jun 17, 4:02 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	43 min
Jun 17, 3:00 PM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more	21 hr
Jun 17, 4:33 AM CDT	Severe Thunderstorm Warning	DVN	Stephenson	42 min

Nearby

Tornado Warnings in Iowa, 2014 Tornado Warnings in Illinois, 2014 Every tornado warning in 2014 Tornadoes 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.