July 17th, 2016 Storm Summary

Tornadoes:

Tornado #1 - Andrew, IA Jackson County Date July 17, 2016 Time (Local) 603 - 605 AM CDT EF Rating EF-1 Est. Peak Winds 100 mph Path Length 1.0 mi Max Width 50 yds Injuries/Deaths 0 Summary: Tornado crossed the southern parts of the town of Andrew.  A building at the ag coop was destroyed and numerous trees were snapped. Track Map

Photo: NWS Storm Survey Photo: NWS Storm Survey 1103z Base Reflectivity / Storm Relative Velocity 1104z Base Reflectivity / Storm Relative Velocity

Tornado #2 - Park View, IA Scott County Date July 17, 2016 Time (Local) 625 - 626 AM CDT EF Rating EF-0 Est. Peak Winds 80 mph Path Length 1.0 mi Max Width 10 yds Injuries/Deaths 0 Summary: Limbs were snapped off from a tree and corn crops were damaged. Track Map

Photo: NWS Storm Survey 1127z Base Reflectivity / Base Velocity

Tornado #3 - Vinton, IA Benton County Date July 17, 2016 Time (Local) 501 - 503 AM CDT EF Rating EF-2 Est. Peak Winds 135 MPH Path Length 1.62 Miles Max Width 100 Yards Injuries/Deaths 5 Injured Summary: A tornado tracked across the southern part of Vinton, damaging buildings, trees, then hit the ball field where it destroyed fencing, the score board and a large light pole. It then tracked across several multi-family buildings, where it mainly removed the roof structures. From there, the tornado intensified as it struck a brick apartment building, which  was unroofed and had parts of the walls blown out. The tornado then felled a cell phone tower and apparently began to weaken as it continued across a large field. The roofs of another eight homes were damaged as the tornado finally exited Vinton and continued into farmland where it dissipated. Track Map

Photos

Damage to apartment building in Vinton Photo: NWS Storm Survey Damage near a baseball field Photo: NWS Storm Survey Radar reflectivity at Vinton at 501 AM Radar rotation near Vinton at 501 AM

Tornado #4 - Walford, IA Benton and Linn Counties Date July 17, 2016 Time (Local) 515 - 521 AM CDT EF Rating EF-2 Est. Peak Winds 115 MPH Path Length 4.0 Miles Max Width 75 Yards Injuries/Deaths 4 Injured A tornado touched down southeast of Norway and tracked southeastward to Walford. It damaged two farmsteads before reaching Walford. In Walford, several homes had roof damage. One home was completely destroyed when it collapsed on itself, apparently aided by wind-blown debris. Track Map

Tornado #5 - Princeton, IA Scott County Date July 17, 2016 Time (Local) 636 - 638 AM CDT EF Rating EF-1 Est. Peak Winds 100 MPH Path Length 2.0 Miles Max Width 100 Yards Injuries/Deaths 0 A tornado moved through rural areas of Scott County between LeClaire and Princeton Iowa. Crop damage to corn in a narrow path was reported, and many trees were damaged along the path. Several hardwood trees were snapped off. Track Map

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Radar:

Interactive Radar Loop

Storm Reports

Interactive Map	SPC Storm Reports July 16, 2016

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
324 PM CDT SUN JUL 17 2016

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

0449 AM     TSTM WND DMG     NW JESUP                42.48N 92.07W 
07/17/2016                   BUCHANAN           IA   BROADCAST MEDIA 

            GRAIN BIN DESTROYED AND BLOWN INTO ANOTHER STRUCTURE. THE
            GRAIN BIN WAS EMPTY

0454 AM     TSTM WND DMG     NE JESUP                42.48N 92.07W 
07/17/2016                   BUCHANAN           IA   FIRE DEPT/RESCUE

            GRAIN BIN DESTROYED WITH ANOTHER WITH THE SIDE PUSHED IN 
            BY THE WIND. 

0455 AM     TSTM WND DMG     S VINTON                42.16N 92.03W 
07/17/2016                   BENTON             IA   EMERGENCY MNGR  

            ROOF BLOWN OFF A LARGE APARTMENT BUILDING AND A HOUSE 
            DAMAGED. TIME ESTIMATED FROM RADAR. 

0455 AM     TSTM WND GST     1 N INDEPENDENCE        42.49N 91.89W 
07/17/2016  E75.00 MPH       BUCHANAN           IA   TRAINED SPOTTER 

            ESTIMATED WINDS OF 70 TO 75 MPH BASED ON THE MOVEMENT OF 
            THE TREES. NO DAMAGE WAS VISIBLE AT THE TIME OF THE 
            REPORT. 

0510 AM     TSTM WND DMG     2 E PALO                42.06N 91.76W 
07/17/2016                   LINN               IA   TRAINED SPOTTER 

            REPORT WAS DELAYED....SPOTTER OBSERVED POWER FLAHES 
            AROUND 510 AND THIS MORNING THERE WERE POWER LINES DOWN 
            IN THE AREA WITH THE POWER OUT. 

0515 AM     TSTM WND GST     W CEDAR RAPIDS          41.97N 91.67W 
07/17/2016  M61.00 MPH       LINN               IA   BROADCAST MEDIA 

            KCRG EQUIPMENT MEASUREMENT AT XAVIER HIGH SCHOOL ON THE 
            WEST SIDE OF CEDAR RAPIDS. TIME OF THE EVENT IS ESTIMATED
            SINCE EXACT TIME IS UNKNOWN. 

0525 AM     TSTM WND GST     1 SSE CEDAR RAPIDS      41.95N 91.66W 
07/17/2016  E55.00 MPH       LINN               IA   TRAINED SPOTTER 

            50 TO 55 MPH GUSTS. 

0530 AM     HAIL             SWISHER                 41.84N 91.70W 
07/17/2016  M0.25 INCH       JOHNSON            IA   TRAINED SPOTTER 

0546 AM     TSTM WND DMG     WALFORD                 41.88N 91.84W 
07/17/2016                   BENTON             IA   TRAINED SPOTTER 

            MULTIPLE HOMES DAMAGE IN WALFORD WITH ONE COLLAPSED. 

0602 AM     TSTM WND DMG     MAQUOKETA               42.07N 90.67W 
07/17/2016                   JACKSON            IA   EMERGENCY MNGR  

            A COUPLE OF TREES WERE UPROOTED IN TOWN. TIME OF THE 
            EVENT ESTIMATED USING RADAR.

0603 AM     TORNADO          1 SW ANDREW             42.15N 90.60W 
07/17/2016                   JACKSON            IA   NWS STORM SURVEY

            EF-1 TORNADO CROSSED THE SOUTHERN PARTS OF THE TOWN OF 
            ANDREW. A BUILDING AT THE AG COOP WAS DESTROYED AND 
            NUMEROUS TREES WERE SNAPPED.

0622 AM     TSTM WND GST     PARK VIEW               41.69N 90.54W 
07/17/2016  E60.00 MPH       SCOTT              IA   NWS EMPLOYEE    

0622 AM     TSTM WND DMG     4 S DEWITT              41.76N 90.55W 
07/17/2016                   SCOTT              IA   CO-OP OBSERVER  

            MULBERRY TREE BLOWN OVER, NUMEROUS OTHER LIMBS DOWN

0622 AM     TSTM WND DMG     PARK VIEW               41.69N 90.54W 
07/17/2016                   SCOTT              IA   NWS EMPLOYEE    

            TREE BRANCHES DOWN...SOME 2 TO 6 INCHES IN DIAMETER. TIME
            ESTIMATED FROM RADAR. 

0623 AM     TSTM WND DMG     1 S ANDREW              42.14N 90.59W 
07/17/2016                   JACKSON            IA   LAW ENFORCEMENT 

            LAW ENFORCEMENT REPORTED SIGNIFICANT DAMAGE TO A BUILDING
            WITH NEARBY TREES TWISTED AND SOME FARM EQUIPMENT KNOCKED
            OVER. 

0623 AM     TSTM WND DMG     DEWITT                  41.82N 90.55W 
07/17/2016                   CLINTON            IA   LAW ENFORCEMENT 

            LAW ENFORCEMENT REPORTED SEVERAL TREES DOWN IN DEWITT. 

0625 AM     TORNADO          2 S PARK VIEW           41.66N 90.54W 
07/17/2016                   SCOTT              IA   NWS STORM SURVEY

            BRIEF EF-0 TORNADO DID DAMAGE TO TREES AND CORN CROPS.

0625 AM     TSTM WND DMG     2 ESE LONG GROVE        41.68N 90.55W 
07/17/2016                   SCOTT              IA   PUBLIC          

            NEAR FARM ALONG OLD 61 BETWEEN PARKVIEW AND 
            ELDERIGE....TOPS OF TREES TWISTED OFF AND CORN LAYING 
            DOWN IN NEIGHBORING FIELD WITH SOME OF THE CORN RIPPED 
            OUT. 

0625 AM     TSTM WND DMG     LONG GROVE              41.69N 90.58W 
07/17/2016                   SCOTT              IA   NWS EMPLOYEE    

            3 INCH LIMB DOWN IN A DRIVEWAY

0625 AM     TSTM WND DMG     1 SSE DAVENPORT         41.54N 90.60W 
07/17/2016                   SCOTT              IA   TRAINED SPOTTER 

            TREE BRACNCHES DOWN ALONG THE 2200 BLOCK OF NORTH 
            WASHINGTON STREET IN DAVENPORT. BRANCHES SNAPPED OFF 
            TREES AND PARTIALLY IN THE STREET. NO DAMAGE TO 
            STRUCTURES. TIME ESTIMATED USING RADAR. 

0630 AM     TSTM WND DMG     ELDRIDGE                41.64N 90.57W 
07/17/2016                   SCOTT              IA   NWS EMPLOYEE    

            4 TO 6 INCH DIAMETER BRANCHES BROKEN OFF AN BLOWN 100 TO 
            200 YARDS. TREE WAS ALONG U.S. 61 NORTH OF LE CLAIRE ROAD
            EAST OF ELDRIDGE. TIME ESTIMATED FROM RADAR. 

0635 AM     TSTM WND DMG     3 WSW BETTENDORF        41.55N 90.54W 
07/17/2016                   SCOTT              IA   NWS EMPLOYEE    

            TREE UPROOTED AND CROWN SNAPPED ALONG WITH A 6 INCH 
            DIAMETER BRANCHES DOWN. TIME ESTIMATED USING RADAR. 

Environment

Figure 1: 01Z SPC Day 1 Categorical Outlook	Figure 2: 01Z SPC Day 1 Tornado Outlook	Figure 3: 01Z SPC Day 1 Hail Outlook	Figure 4: 01Z SPC Day 1 Wind Outlook
	Figure 5: Mesoscale Discussion 1304	Figure 6: Mesoscale Discussion 1305