Alert archive / Iowa / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 78, NWS Quad Cities, IA

June 16, 2014Benton County, Linn County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 16, 2014, 9:47 PM CDT for Benton County, Linn County, Iowa. It was in force for 43 min. 9 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 16, 2014, 9:47 PM CDT (02:47 UTC)
Expired: Jun 16, 2014, 10:30 PM CDT
In force: 43 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Benton County, IA, Linn County, IA

The radar

The Quad Cities radar (KDVN), 121 km from the middle of the area, began a volume at 02:46 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 16, 9:48 PM CDT	TSTM WND GST 62	Van Horne, IA
Jun 16, 9:53 PM CDT	TSTM WND DMG	1 W Van Horne, IA	TREES AND POWER POLES DOWN 1 TO 2 MILES WEST.
Jun 16, 9:59 PM CDT	TSTM WND GST 60	1 Nw Van Horne, IA
Jun 16, 10:10 PM CDT	TSTM WND DMG	Ese Cedar Rapids, IA	LARGE TREE FELL ON RIVER GAUGE SITE ON THE CEDAR RIVER IN TOWN...TIME ESTIMATED. ALSO REPORTED BY CITY EMPLOYEE...DELAYED REPORT.
Jun 16, 10:20 PM CDT	TSTM WND GST 72	1 N Fairfax, IA	80TH STREET AND HIGHWAY 30 NORTH OF FAIRFAX VIA FIRE DEPT RELAYED BY EMERGENCY MANAGER.
Jun 16, 10:26 PM CDT	TSTM WND GST 60	Cedar Rapids, IA	NEAR I380 AND 100. HEAVY RAIN
Jun 16, 10:28 PM CDT	TSTM WND DMG	2 W Cedar Rapids, IA	EXTENSIVE TREE DAMAGE FROM INTERSECTION OF JOHNSON AND EDGEWOOD TO 6TH ST AND WILSON. SEVERAL FULL GROWN TREES SNAPPED OFF BY THE BASE OF THE TREE. ALSO DAMAGE NEAR CLEVELAND ELEMENTARY SCHOOL. TIME ESTIMATED FROM RADAR.
Jun 16, 10:28 PM CDT	TSTM WND DMG	2 W Cedar Rapids, IA	TREE DAMAGE SEEN ON 29TH AND 30TH ST. SEVERAL SIZES OF TREE WITH LARGEST UPROOTED AND ON THE GROUND ON 29TH...TIME ESTIMATED FROM RADAR.
Jun 16, 10:28 PM CDT	TSTM WND GST 60	Cedar Rapids, IA	NEAR I380 AND 100. HEAVY RAIN

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 9 storm reports to this severe thunderstorm warning; the first came 1 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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, 2.8 hours before the alert went out and 126 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.

341 
WUUS53 KDVN 170247
SVRDVN
IAC011-113-170330-
/O.NEW.KDVN.SV.W.0078.140617T0247Z-140617T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
947 PM CDT MON JUN 16 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

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

* UNTIL 1030 PM CDT

* AT 942 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR VAN HORNE...
  AND MOVING EAST AT 30 MPH.

  HAZARD...70 MPH WIND GUSTS.

  SOURCE...TRAINED WEATHER SPOTTERS IN KEYSTONE.

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  CEDAR RAPIDS...BLAIRSTOWN...NEWHALL...URBANA...SHELLSBURG...
  NORWAY...WALKER...ATKINS...CENTER POINT...PALO...WALFORD...TROY
  MILLS...FAIRFAX...TODDVILLE...HIAWATHA...ROBINS...ALBURNETT...
  PARIS...MARION AND BERTRAM.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 13 AND 47.

OTHER LOCATIONS AFFECTED INCLUDE PLEASANT CREEK STATE RECREATION
AREA...BENTON COUNTY FAIRGROUNDS...LINN COUNTY FAIRGROUNDS...HOWARD H
CHERRY SCOUT RESERVATION...PINICON RIDGE COUNTY PARK...WAKPICADA
COUNTY PARK...SQUAW CREEK PARK...WILD CAT BLUFF RECREATION AREA...
HANNEN LAKE PARK...BUFFALO CREEK COUNTY PARK...MORGAN CREEK PARK...
BENTON CITY-FRY ACCESS AND HOEFLE-DULIN AREA PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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

&&

LAT...LON 4229 9192 4230 9136 4186 9155 4186 9230
      4190 9231
TIME...MOT...LOC 0247Z 282DEG 27KT 4204 9206

HAIL...<.75IN
WIND...70MPH

$$

ERVIN

3 follow-up statements

777 
WWUS53 KDVN 170302
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1002 PM CDT MON JUN 16 2014

IAC011-113-170330-
/O.CON.KDVN.SV.W.0078.000000T0000Z-140617T0330Z/
LINN IA-BENTON IA-
1002 PM CDT MON JUN 16 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BENTON AND LINN COUNTIES UNTIL 1030 PM CDT...

AT 1000 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NEWHALL...AND
MOVING EAST AT 30 MPH.

HAZARD...70 MPH WIND GUSTS.

SOURCE...TRAINED WEATHER SPOTTERS.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE
         HOMES...ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
CEDAR RAPIDS...URBANA...SHELLSBURG...ATKINS...WALFORD...PALO...
WALKER...CENTER POINT...FAIRFAX...TODDVILLE...TROY MILLS...
HIAWATHA...ROBINS...MARION...BERTRAM...ALBURNETT...WHITTIER...ELY...
WAUBEEK AND CENTRAL CITY.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 13 AND 47.

OTHER LOCATIONS AFFECTED INCLUDE PLEASANT CREEK STATE RECREATION
AREA...BENTON COUNTY FAIRGROUNDS...LINN COUNTY FAIRGROUNDS...HOWARD H
CHERRY SCOUT RESERVATION...PINICON RIDGE COUNTY PARK...WAKPICADA
COUNTY PARK...SQUAW CREEK PARK...WILD CAT BLUFF RECREATION AREA...
HANNEN LAKE PARK...BUFFALO CREEK COUNTY PARK...MORGAN CREEK PARK...
BENTON CITY-FRY ACCESS AND HOEFLE-DULIN AREA PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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

&&

LAT...LON 4229 9192 4230 9136 4186 9155 4186 9230
      4190 9231
TIME...MOT...LOC 0302Z 270DEG 27KT 4204 9191

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH

$$

ERVIN

457 
WWUS53 KDVN 170311
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1011 PM CDT MON JUN 16 2014

IAC011-113-170330-
/O.CON.KDVN.SV.W.0078.000000T0000Z-140617T0330Z/
LINN IA-BENTON IA-
1011 PM CDT MON JUN 16 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN BENTON
AND LINN COUNTIES UNTIL 1030 PM CDT...

AT 1010 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PALO...AND
MOVING EAST AT 30 MPH.

HAZARD...70 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE
         HOMES...ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
CEDAR RAPIDS...PALO...WALKER...FAIRFAX...CENTER POINT...TODDVILLE...
HIAWATHA...TROY MILLS...ROBINS...MARION...BERTRAM...ALBURNETT...
WHITTIER...ELY...WAUBEEK...CENTRAL CITY...PARIS...PRAIRIEBURG...
COGGON AND CEDAR RAPIDS MUNICIPAL AIRPORT.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 13 AND 46.

OTHER LOCATIONS AFFECTED INCLUDE PLEASANT CREEK STATE RECREATION
AREA...LINN COUNTY FAIRGROUNDS...HOWARD H CHERRY SCOUT RESERVATION...
PINICON RIDGE COUNTY PARK...WAKPICADA COUNTY PARK...SQUAW CREEK
PARK...WILD CAT BLUFF RECREATION AREA...HANNEN LAKE PARK...BUFFALO
CREEK COUNTY PARK...MORGAN CREEK PARK AND BENTON CITY-FRY ACCESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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

&&

LAT...LON 4212 9198 4229 9192 4230 9136 4186 9155
      4187 9229
TIME...MOT...LOC 0311Z 270DEG 27KT 4204 9182

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH

$$

ERVIN

934 
WWUS53 KDVN 170317
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1017 PM CDT MON JUN 16 2014

IAC011-113-170330-
/O.CON.KDVN.SV.W.0078.000000T0000Z-140617T0330Z/
LINN IA-BENTON IA-
1017 PM CDT MON JUN 16 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN BENTON
AND LINN COUNTIES UNTIL 1030 PM CDT...

AT 1014 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PALO...AND
MOVING EAST AT 30 MPH.

HAZARD...70 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE
         HOMES...ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
CEDAR RAPIDS...TODDVILLE...HIAWATHA...TROY MILLS...ROBINS...MARION...
BERTRAM...ALBURNETT...WHITTIER...ELY...WAUBEEK...CENTRAL CITY...
PARIS...PRAIRIEBURG...COGGON...CEDAR RAPIDS MUNICIPAL AIRPORT...
MIDWAY...LAFAYETTE AND MARION AIRPORT.

THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 13 AND 46.

OTHER LOCATIONS AFFECTED INCLUDE PLEASANT CREEK STATE RECREATION
AREA...LINN COUNTY FAIRGROUNDS...HOWARD H CHERRY SCOUT RESERVATION...
PINICON RIDGE COUNTY PARK...WAKPICADA COUNTY PARK...SQUAW CREEK
PARK...WILD CAT BLUFF RECREATION AREA...BUFFALO CREEK COUNTY PARK...
MORGAN CREEK PARK AND BENTON CITY-FRY ACCESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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

&&

LAT...LON 4187 9208 4212 9198 4229 9192 4230 9136
      4186 9155
TIME...MOT...LOC 0317Z 270DEG 27KT 4204 9176

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH

$$

ERVIN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 16, 6:26 PM CDT, 3 hours 21 minutes earlier.

Area forecast discussion, Jun 16, 6:26 PM CDT, 3 hours 21 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
626 PM CDT MON JUN 16 2014

.UPDATE...
ISSUED AT 548 PM CDT MON JUN 16 2014

WARM FRONT CONTINUES TO SHIFT INTO OUR NORTHERN CWA WITH CAPPING
TO THE SOUTH. HAVE UPDATED THE GRIDS TO CANCEL THE SEVERE THUNDERSTORM
WATCH FOR LOCATIONS SOUTH OF HIGHWAY 30. LOOKS LIKE A LULL FOR
SEVERAL HOURS AND THEN AWAIT THE ARRIVAL OF MCS COMING OUT OF NW
IA. THIS SHOULD IMPACT OUR NORTHERN CWA LATER THIS EVENING AND
INTO THE OVERNIGHT HOURS...THEREFORE THE WATCH WILL REMAIN IN PLACE.

&&

.SYNOPSIS...
ISSUED AT 405 PM CDT MON JUN 16 2014

WARM FRONT EXTENDED FROM EASTERN NEB TO WESTERN IL WITH TEMPERATURES
IN THE 80S ACROSS THE DVN CWA WITH DEWPOINTS IN THE LOWER 70S SOUTH
OF THE FRONT. SBCAPES ARE NEARLY 5000 J/KG ALONG AND SOUTH OF THE
FRONT AND IN THE PAST COUPLE OF HOURS LEFT MOVING SUPERCELLS HAVE
FORMED IN SE IA PRODUCING VERY LARGE HAIL. A LARGER MCS WAS ORGANIZING
IN FAR NW IA/SW MN/NE NEB. A STRENGTHENING LOW LEVEL JET WAS
POINTING INTO THE MCS WELL TO OUR NW WHERE MID LEVEL LAPSE RATES
ARE 9 C/KM AND SFC-3KM HELICITIES ARE 500 M2/S2.

&&

.SHORT TERM...(THIS EVENING THROUGH TUESDAY)
ISSUED AT 405 PM CDT MON JUN 16 2014

FORECAST FOCUS ON SEVERE WEATHER THIS EVENING.

LATE THIS AFTERNOON THROUGH TONIGHT SIGNIFICANT SEVERE WEATHER
EXPECTED WITH VERY LARGE HAIL AND DAMAGING WINDS OF AT LEAST 70 TO
80 MPH. AN ISOLATED TORNADO ALSO POSSIBLE. SCATTERED SUPERCELLS
WILL CONTINUE THIS EVENING TO DEVELOP AND SPREAD NORTHEAST ALONG
WITH THE WARM FRONT. STRONG LOW LEVEL SHEAR IN PLACE ALONG WITH
HIGH CAPE. LATER THIS EVENING INTO THE OVERNIGHT HOURS THE ORGANIZING
MCS TO OUR NW WILL CONGEAL INTO A POTENTIAL DERECHO WITH WIDESPREAD
DAMAGING WIND WITH THE POTENTIAL FOR 80+ MPH WINDS WHICH SHOULD
ROAR ACROSS OUR NORTHERN HALF OF THE CWA.

TUESDAY...MODELS SUGGEST A CAP IN PLACE AND WITH THE WARM FRONT TO
OUR NORTH CONVECTION SHOULD BE MINIMAL. THIS WILL BE A HOT AND
HUMID DAY WITH HIGH TEMPERATURES AROUND 90 WITH DEWPOINTS IN THE
LOWER 70S. HEAT INDEX VALUES WILL PUSH INTO THE MID 90S TO AROUND
100 WHICH WILL BE NEAR HEADLINE CRITERIA...ESPECIALLY IN OUR SOUTH.

.LONG TERM...(TUESDAY NIGHT THROUGH MONDAY)
ISSUED AT 405 PM CDT MON JUN 16 2014

DEEP TROUGH IN THE WEST WILL GRADUALLY LIFT TO THE UPPER MIDWEST
BY THE WEEKEND KEEPING THE ACTIVE PATTERN GOING INTO THE WEEKEND.
THERE WILL BE CHANCE POPS EACH DAY WITH POSITION OF THE FRONTAL
BOUNDARY TO BE DETERMINED. OF COURSE THIS WILL DEPEND ON WHERE MCS
ACTIVITY DEVELOPS. HIGH TEMPERATURES WILL BE AROUND 90 AGAIN ON
WEDNESDAY WITH HEAT INDEX VALUES WELL INTO THE 90S TO AROUND 100.
THEREAFTER READINGS SHOULD REMAIN IN THE 80S.

EARLY NEXT WEEK...UPPER RIDGING BUILDS INTO THE AREA WITH SURFACE
HIGH PRESSURE INTO THE GREAT LAKES. HIGHS SHOULD DROP INTO THE 70S.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z TUESDAY EVENING)
ISSUED AT 622 PM CDT MON JUN 16 2014

EVENING STORMS ALONG A WARM FRONT HAVE DIED AS WARM AIR ALOFT
ARRIVED AHEAD OF A STRONG LINE OF STORMS TO THE NORTHWEST. THE
EVENING WILL BE MAINLY WINDY AND VFR AS WE WAIT FOR THESE SEVERE
STORMS TO ARRIVE. THEY ARE LIKELY TO IMPACT LOCATIONS NORTH OF
INTERSTATE 80 OVERNIGHT AND EARLY TUESDAY MORNING...AND STRONG
STORMS ARE INCLUDED IN THE CID AND DBQ TAF FOR THIS...A VCTS IS
INCLUDED AT MLI AS WE ARE LESS CONFIDENT OF OCCURRENCE THERE.
OTHERWISE...SOME EARLY MORNING MVFR FOG IS LIKELY IN A MOIST
ATMOSPHERE...WITH ANOTHER VFR DAY EXPECTED TUESDAY AFTER STORMS
CLEAR OUT.

ERVIN

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
IL...NONE.
MO...NONE.
&&

UPDATE...HAASE
SYNOPSIS...HAASE
SHORT TERM...HAASE
LONG TERM...HAASE
AVIATION...ERVIN

Hazardous weather outlook, Jun 16, 12:05 PM CDT, 9 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1205 PM CDT MON JUN 16 2014

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-170915-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
1205 PM CDT MON JUN 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST
CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST
MISSOURI.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SEVERE THUNDERSTORMS ARE LIKELY OVER PORTIONS OF THE OUTLOOK AREA
LATE THIS AFTERNOON AND EVENING. AT THIS TIME...THE AREA MOST AT
RISK FOR SEVERE WEATHER APPEARS TO BE NORTH OF A LINE FROM OTTUMWA
IOWA...TO GALESBURG ILLINOIS. VERY LARGE HAIL TO AROUND THE SIZE OF
GOLFBALLS...AND DAMAGING WINDS OF 60 MPH TO POSSIBLY OVER 80 MPH WILL
BE THE MAIN THREATS. ISOLATED BRIEF TORNADOES WILL ALSO BE POSSIBLE.
IN ADDITION...HEAVY RAINFALL COULD RESULT IN LOCALIZED FLASH
FLOODING DUE TO INTENSE RAINFALL RATES.

THE STORM PREDICTION CENTER HAS A SLIGHT RISK OF SEVERE STORMS
FOR MOST OF THE OUTLOOK AREA...WITH A MODERATE RISK FOR PORTIONS OF
EASTERN IOWA NORTH OF INTERSTATE 80.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE CONFIDENCE THAT THE AREA WILL BE IN OR CLOSE TO THE ORGANIZED
THUNDERSTORM TRACK TUESDAY THROUGH SUNDAY IS HIGH. CONFIDENCE IS
LOW ON WHERE EACH THUNDERSTORM COMPLEX WILL TRACK. DEPENDING UPON
WHERE STORMS TRACK...RAINFALL AMOUNTS COULD BE VERY SIGNIFICANT.

THUNDERSTORMS WILL BE POSSIBLE EVERY DAY FROM TUESDAY THROUGH
SUNDAY.

THE STORM PREDICTION CENTER HAS A SLIGHT RISK OF SEVERE STORMS
TUESDAY AND TUESDAY NIGHT NORTH OF INTERSTATE 80...AND FOR THE
ENTIRE AREA WEDNESDAY AND WEDNESDAY NIGHT. RIGHT NOW THE PRIMARY
THREATS APPEAR TO BE HIGH WINDS AND HAIL.

AREAS THAT DO NOT SEE RAIN TUESDAY OR WEDNESDAY WILL BE VERY WARM
AND HUMID...WITH HEAT INDEX READINGS POTENTIALLY WELL INTO THE
90S.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY FOR PORTIONS OF THE OUTLOOK AREA LATE
THIS AFTERNOON AND EVENING.

05/SHEETS/08

In the hours before

Local storm report, Jun 16, 7:21 PM CDT, 2 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
721 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     TSTM WND DMG     MARTELLE                42.02N 91.36W
06/16/2014                   JONES              IA   TRAINED SPOTTER

            PATH FROM 1 WEST OF MARTELLE TO 2 EAST WIND DAMAGE TO
            MOSTLY TREES OF 6 TO 12 INCH DIAMETER. ONE TREE WAS 3FT.
            2 EAST OF MARTELLE AN OLD BARN AND SILO BLOWN DOWN.
            DELAYED REPORT.

&&

TEO

Local storm report, Jun 16, 9:21 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
921 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0913 PM     HAIL             1 NE HAZLETON           42.63N 91.89W
06/16/2014  M0.25 INCH       BUCHANAN           IA   TRAINED SPOTTER

            VERY HEAVY RAIN.

&&

TEO

Local storm report, Jun 16, 9:33 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
933 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0932 PM     TORNADO          N WINTHROP              42.47N 91.73W
06/16/2014                   BUCHANAN           IA   EMERGENCY MNGR

            160TH AND 187TH.

&&

TEO

Local storm report, Jun 16, 9:36 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
936 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0931 PM     TORNADO          N WINTHROP              42.47N 91.73W
06/16/2014                   BUCHANAN           IA   EMERGENCY MNGR

            160TH AND 187TH.

&&

TEO

Local storm report, Jun 16, 9:41 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
941 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0937 PM     FUNNEL CLOUD     E DUNDEE                42.58N 91.55W
06/16/2014                   DELAWARE           IA   EMERGENCY MNGR

            EAST OF DUNDEE. PEA SIZE HAIL WITH HEAVY RAIN.

&&

TEO

Local storm report, Jun 16, 9:42 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
942 PM CDT MON JUN 16 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0939 PM     TSTM WND GST     1 N KEYSTONE            42.01N 92.20W
06/16/2014  E70.00 MPH       BENTON             IA   EMERGENCY MNGR

            ESTIMATED AT LEAST 70 MPH FROM KEYSTONE FIRE DEPARTMENT.

&&

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, 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, 3:36 AM CDT	Tornado Warning	DVN	Scott	24 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

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.