Alert archive / Iowa / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 101, NWS Quad Cities, IA

June 30, 2014Benton County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 30, 2014, 1:51 PM CDT for Benton County, Iowa. It was in force for 54 min. 5 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 30, 2014, 1:51 PM CDT (18:51 UTC)
Expired: Jun 30, 2014, 2:45 PM CDT
In force: 54 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 70.0 mph

County Benton County, IA

The radar

The Quad Cities radar (KDVN), 140 km from the middle of the area, began a volume at 18:54 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 30, 2:23 PM CDT	TSTM WND DMG	Belle Plaine, IA	TIME ESTIMATED -2 BIG TREES DOWN AT 1805 11TH AVE- ONE FELL ON HOUSE, ONE FELL ON GARAGE
Jun 30, 2:23 PM CDT	TSTM WND GST 65	W Belle Plaine, IA	60-65 MPH WIND. VERY HEAVY RAIN. POWER IS OUT.
Jun 30, 2:23 PM CDT	TSTM WND GST 70	10 W Vinton, IA	WIDESPREAD WIND DAMAGE ACROSS WESTERN BENTON COUNTY
Jun 30, 2:23 PM CDT	TSTM WND GST 70	10 W Vinton, IA	WIDESPREAD WIND DAMAGE ACROSS WESTERN BUCHANNAN COUNTY
Jun 30, 2:23 PM CDT	TSTM WND GST 70	Garrison, IA	WIDESPREAD DAMAGE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.9 hours before the alert went out and 145 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: 1426 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 15.0

Open this sounding in Storm Lab

The text

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

900 
WUUS53 KDVN 301851
SVRDVN
IAC011-301945-
/O.NEW.KDVN.SV.W.0101.140630T1851Z-140630T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
151 PM CDT MON JUN 30 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENTON COUNTY IN EAST CENTRAL IOWA...

* UNTIL 245 PM CDT

* AT 149 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 8 MILES WEST OF HUDSON TO 19 MILES SOUTHWEST OF
  DYSART...AND MOVING EAST AT 40 MPH.

  HAZARD...70 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE
           TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
           ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  VINTON...BELLE PLAINE...KEYSTONE...LUZERNE...GARRISON...MOUNT
  AUBURN...VAN HORNE...BLAIRSTOWN...NEWHALL...NORWAY...URBANA...
  SHELLSBURG...ATKINS...WALFORD...IRVING...VINTON MEMORIAL AIRPORT...
  WATKINS...CHENEY AND SPENCERS GROVE.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 40 AND 49.

OTHER LOCATIONS AFFECTED INCLUDE BENTON COUNTY FAIRGROUNDS...WILD CAT
BLUFF RECREATION AREA...HANNEN LAKE PARK...BENTON CITY-FRY ACCESS...
HOEFLE-DULIN AREA PARK...MINNE ESTEMA PARK AND RODGERS PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4230 9230 4230 9206 4230 9183 4186 9183
      4186 9230
TIME...MOT...LOC 1851Z 270DEG 34KT 4240 9258 4203 9261

HAIL...1.25IN
WIND...70MPH

$$

MCCLURE

2 follow-up statements

460 
WWUS53 KDVN 301905
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
205 PM CDT MON JUN 30 2014

IAC011-301945-
/O.CON.KDVN.SV.W.0101.000000T0000Z-140630T1945Z/
BENTON IA-
205 PM CDT MON JUN 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR BENTON COUNTY
UNTIL 245 PM CDT...

AT 203 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HUDSON TO 12 MILES SOUTHWEST OF DYSART...AND MOVING
EAST AT 40 MPH.

HAZARD...70 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
VINTON...BELLE PLAINE...KEYSTONE...LUZERNE...GARRISON...MOUNT
AUBURN...VAN HORNE...BLAIRSTOWN...NEWHALL...URBANA...SHELLSBURG...
ATKINS...NORWAY...WALFORD...IRVING...VINTON MEMORIAL AIRPORT...
WATKINS...CHENEY AND SPENCERS GROVE.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 40 AND 49.

OTHER LOCATIONS AFFECTED INCLUDE BENTON COUNTY FAIRGROUNDS...WILD CAT
BLUFF RECREATION AREA...HANNEN LAKE PARK...BENTON CITY-FRY ACCESS...
HOEFLE-DULIN AREA PARK...MINNE ESTEMA PARK AND RODGERS PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN THE
QUAD CITIES.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4230 9230 4230 9206 4230 9183 4186 9183
      4186 9230
TIME...MOT...LOC 1905Z 270DEG 34KT 4240 9240 4203 9243

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...70MPH

$$

MCCLURE

930 
WWUS53 KDVN 301924
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
224 PM CDT MON JUN 30 2014

IAC011-301945-
/O.CON.KDVN.SV.W.0101.000000T0000Z-140630T1945Z/
BENTON IA-
224 PM CDT MON JUN 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR BENTON COUNTY
UNTIL 245 PM CDT...

AT 221 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES SOUTHEAST OF EVANSDALE TO BELLE PLAINE...AND
MOVING EAST AT 40 MPH.

THESE ARE VERY DANGEROUS STORMS.

HAZARD...80 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE HEAVILY DAMAGED. EXPECT
         CONSIDERABLE DAMAGE TO ROOFS...WINDOWS AND VEHICLES.
         EXTENSIVE TREE DAMAGE AND POWER OUTAGES ARE LIKELY.

LOCATIONS IMPACTED INCLUDE...
VINTON...GARRISON...MOUNT AUBURN...VAN HORNE...BLAIRSTOWN...
NEWHALL...NORWAY...URBANA...SHELLSBURG...ATKINS...WALFORD...VINTON
MEMORIAL AIRPORT...WATKINS...CHENEY AND SPENCERS GROVE.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 40 AND 49.

OTHER LOCATIONS AFFECTED INCLUDE BENTON COUNTY FAIRGROUNDS...WILD CAT
BLUFF RECREATION AREA...HANNEN LAKE PARK...BENTON CITY-FRY ACCESS...
HOEFLE-DULIN AREA PARK...MINNE ESTEMA PARK AND RODGERS PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND
SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE
ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE
OVERTURNED. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A BUILDING. THESE STORMS HAVE THE POTENTIAL TO CAUSE
SERIOUS INJURY AND SIGNIFICANT PROPERTY DAMAGE.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4230 9230 4230 9206 4230 9183 4186 9183
      4186 9230
TIME...MOT...LOC 1923Z 270DEG 34KT 4240 9217 4188 9220

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...80MPH

$$

MCCLURE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 8:53 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	67 min
Jun 29, 10:01 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 29, 10:08 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque, Jackson, Jones	37 min
Jun 29, 10:31 PM CDT	Tornado Warning	DVN	Jackson, Jones	29 min
Jun 29, 10:53 PM CDT	Flash Flood Warning	DVN	Benton, Jones, Linn	6 hr
Jun 29, 11:10 PM CDT	Flash Flood Warning	DVN	Clinton, Dubuque, Jackson, Jones	6 hr
Jun 29, 11:10 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Linn	50 min
Jun 29, 11:12 PM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	26 hr
Jun 29, 11:15 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Keokuk, Linn and 2 more	45 min
Jun 29, 11:51 PM CDT	Flash Flood Warning	DVN	Cedar, Clinton, Scott	6 hr
Jun 30, 12:30 AM CDT	Severe Thunderstorm Warning	DVN	Clinton	45 min
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Cedar, Johnson, Linn	7 days
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Lee	4 days
Jun 30, 1:05 AM CDT	River Flood Warning	DVN	Cedar, Jones, Linn	8 days
Jun 30, 1:33 AM CDT	Flash Flood Warning	DVN	Muscatine, Scott	6 hr
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Delaware, Jones	4 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Jackson	5 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Buchanan, Linn	4 days
Jun 30, 3:27 AM CDT	Areal Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 30, 4:31 AM CDT	Areal Flood Warning	DVN	Benton, Jones, Linn	6 hr
Jun 30, 4:34 AM CDT	Areal Flood Warning	DVN	Clinton, Dubuque, Jackson, Jones	6 hr
Jun 30, 4:39 AM CDT	Areal Flood Warning	DVN	Cedar, Clinton, Scott	6 hr
Jun 30, 5:03 AM CDT	Areal Flood Warning	DVN	Scott	6 hr
Jun 30, 5:49 AM CDT	River Flood Warning	DVN	Benton, Linn	6 days
Jun 30, 8:16 AM CDT	Special Weather Statement	DVN	Des Moines	59 min
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Washington	10 days
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Louisa, Washington	21 days
Jun 30, 2:14 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	61 min
Jun 30, 2:17 PM CDT	Tornado Warning	DVN	Benton	28 min
Jun 30, 2:21 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	24 min
Jun 30, 2:27 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk	48 min
Jun 30, 2:38 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Linn	37 min
Jun 30, 2:46 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	44 min
Jun 30, 2:53 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	39 min
Jun 30, 2:54 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	66 min
Jun 30, 2:59 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	46 min
Jun 30, 3:13 PM CDT	Flash Flood Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Linn	6 hr
Jun 30, 3:18 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson	42 min
Jun 30, 3:44 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Dubuque, Jackson, Scott	46 min
Jun 30, 3:53 PM CDT	Flash Flood Warning	DVN	Keokuk, Louisa, Muscatine, Washington	6 hr
Jun 30, 4:08 PM CDT	Special Weather Statement	DVN	Clinton, Dubuque, Jackson, Scott	52 min
Jun 30, 4:35 PM CDT	Flash Flood Warning	DVN	Scott	6 hr
Jun 30, 6:02 PM CDT	Flash Flood Warning	DVN	Buchanan, Delaware, Dubuque	6 hr

Nearby

Severe Thunderstorm Warnings in Iowa, 2014 Every severe thunderstorm warning 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.