Alert archive / Iowa / Tornado Warnings in 2006

Tornado Warning 13, NWS Quad Cities, IA

April 2, 2006Cedar County, Johnson County, Muscatine County, Iowa

NWS Quad Cities, IA issued this tornado warning at Apr 2, 2006, 5:08 PM CDT for Cedar County, Johnson County, Muscatine County, Iowa. It was in force for 46 min. 4 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: Apr 2, 2006, 5:08 PM CDT (22:08 UTC)
Expired: Apr 2, 2006, 5:54 PM CDT
In force: 46 min
Issued by: NWS Quad Cities, IA
Area: Counties, with a storm outline in the text

Counties Cedar County, IA, Johnson County, IA, Muscatine County, IA

The radar

The Quad Cities radar (KDVN), 57 km from the middle of the area, began a volume at 22:08 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

Time	Report	Where	Remark
Apr 2, 5:10 PM CDT	HAIL 0.75	Lone Tree, IA
Apr 2, 5:45 PM CDT	TSTM WND DMG	1 Nw Lowden, IA	POWER POLE SNAPPED OFF. EVERGREEN TREES DAMAGED. SHINGLES BLOWN OFF OF A BARN
Apr 2, 5:45 PM CDT	TSTM WND DMG	1 Wsw Lowden, IA	POWER POLE SNAPPED OFF.
Apr 2, 5:56 PM CDT	HAIL 0.5	Stanwood, IA	SPOTTER ALSO REPORTED WALL CLOUD ABOUT 5 MINUTES AGO.

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
Apr 2, 4:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.1 hours before the alert went out and 64 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 246 m²/s²
0-3 km storm-relative helicity: 257 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 022209
TORDVN
IAC031-103-139-022300-
/O.NEW.KDVN.TO.W.0013.060402T2208Z-060402T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
508 PM CDT SUN APR 2 2006

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CEDAR COUNTY IN EAST CENTRAL IOWA
  SOUTHEASTERN JOHNSON COUNTY IN EAST CENTRAL IOWA
  NORTHWESTERN MUSCATINE COUNTY IN EAST CENTRAL IOWA

* UNTIL 600 PM CDT

* AT 503 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES SOUTHWEST OF LONE TREE...OR ABOUT 13 MILES
  NORTHWEST OF COLUMBUS JUNCTION...MOVING NORTHEAST AT 50 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  NICHOLS BY 515 PM CDT...
  WEST LIBERTY BY 525 PM CDT...
  ATALISSA BY 530 PM CDT...
  5 MILES SOUTHEAST OF TIPTON BY 540 PM CDT...
  BENNETT... AND 9 MILES SOUTHEAST OF CLARENCE BY 545 PM CDT...
  LOWDEN BY 550 PM CDT...

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 254 AND 277.

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 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST IOWA AND WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. A
TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR NORTHWESTERN ILLINOIS.

LAT...LON 4160 9104 4141 9136 4143 9138 4143 9147
      4151 9153 4151 9158 4165 9136 4194 9137
      4194 9091 4160 9091

$$

12/BARDOU

2 follow-up statements

000 
WWUS53 KDVN 022227
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
525 PM CDT SUN APR 2 2006

IAC031-103-139-022300-
/O.CON.KDVN.TO.W.0013.000000T0000Z-060402T2300Z/
CEDAR IA-JOHNSON IA-MUSCATINE IA-
525 PM CDT SUN APR 2 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHWESTERN MUSCATINE...SOUTHEASTERN JOHNSON AND CEDAR COUNTIES...

AT 521 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
POSSIBLE TORNADO WAS LOCATED NEAR WEST LIBERTY...OR ABOUT 13 MILES 
EAST OF IOWA CITY...MOVING NORTHEAST AT 50 MPH. TRAINED SPOTTERS 
REPORTED ROTATION WITH THIS STORM 4 MILES EAST OF WEST BRANCH AT 525 
PM.
 
THE TORNADO WILL BE NEAR...
  ROCHESTER... AND 5 MILES SOUTHEAST OF CEDAR VALLEY BY 530 PM CDT...
  TIPTON MATTHEWS AIRPORT... AND 5 MILES NORTHWEST OF LIME CITY BY
  545 PM CDT...
  TIPTON... AND 6 MILES SOUTHEAST OF WALD BY 540 PM CDT...
  4 MILES NORTHWEST OF BENNETT BY 545 PM CDT...
  LOWDEN... AND 6 MILES SOUTHEAST OF CLARENCE BY 550 PM CDT...
  MASSILLON BY 555 PM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST IOWA AND WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. A
TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR NORTHWESTERN ILLINOIS.

LAT...LON 4160 9104 4141 9136 4143 9138 4143 9147
      4151 9153 4151 9158 4165 9136 4194 9137
      4194 9091 4160 9091

$$

12/BARDOU

000 
WWUS53 KDVN 022254
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
551 PM CDT SUN APR 2 2006

IAC031-103-139-022301-
/O.CAN.KDVN.TO.W.0013.000000T0000Z-060402T2300Z/
CEDAR IA-JOHNSON IA-MUSCATINE IA-
551 PM CDT SUN APR 2 2006

...THE TORNADO WARNING FOR NORTHWESTERN MUSCATINE...SOUTHEASTERN
JOHNSON AND CEDAR COUNTIES IS CANCELLED...

THE THREAT FOR TORNADOES HAS DIMINISHED BUT THUNDERSTORMS CAPABLE OF 
PRODUCING STRONG WINDS WILL CONTINUE TO MOVE NORTHEASTWARD ACROSS 
CEDAR COUNTY THROUGH 700 PM. A SEVERE THUNDERSTORM WARNING REMAINS 
IN EFFECT FOR SOUTHEASTERN CEDAR COUNTY UNTIL 645 PM THEREFORE THE 
TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR
SOUTHEAST IOWA AND WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. A
TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR NORTHWESTERN ILLINOIS. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL MIDNIGHT CDT MONDAY MORNING FOR EASTERN IOWA AND NORTHWESTERN
ILLINOIS.

LAT...LON 4160 9104 4141 9136 4143 9138 4143 9147
      4151 9153 4151 9158 4165 9136 4194 9137
      4194 9091 4160 9091

$$

12/BARDOU

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 3:10 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	65 min
Apr 2, 3:29 PM CDT	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	19 hr
Apr 2, 3:54 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson	51 min
Apr 2, 4:14 PM CDT	Tornado Warning	DVN	Henry, Van Buren	46 min
Apr 2, 4:25 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	69 min
Apr 2, 4:29 PM CDT	Severe Thunderstorm Warning	DVN	Washington	35 min
Apr 2, 4:44 PM CDT	Tornado Warning	DVN	Louisa, Washington	46 min
Apr 2, 4:54 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson	51 min
Apr 2, 5:33 PM CDT	Severe Thunderstorm Warning	DVN	Jones, Linn	57 min
Apr 2, 5:47 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Scott	43 min
Apr 2, 6:08 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	67 min

Nearby

Tornado Warnings in Iowa, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.