NWS survey teams publish preliminary damage reports

June 13, 2013 Jay Farlow

This afternoon, the northern Indiana National Weather Service office published the following preliminary report from official surveys of areas damaged by last night’s storms:

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1254 PM EDT THU JUN 13 2013 /1154 AM CDT THU JUN 13 2013/

...UPDATE ON JUNE 12 SEVERE WEATHER DAMAGE SURVEYS...

ALL INFORMATION IS CONSIDERED PRELIMINARY AND SUBJECT TO CHANGE. 

A COMBINATION OF SUPERCELL THUNDERSTORMS AND BOWING LINE SEGMENTS
WITH MANY AREAS OF ROTATION MOVED THROUGH NORTHERN INDIANA AND
NORTHWEST OHIO DURING THE EVENING AND OVERNIGHT HOURS OF
WEDNESDAY...JUNE 12. THE NATIONAL WEATHER SERVICE IN NORTHERN
INDIANA DISPATCHED TWO DAMAGE SURVEY CREWS TO VARIOUS PARTS OF THE
COUNTY WARNING AREA TO DETERMINE THE NATURE AND EXTENT OF THESE
STORMS.  REPORTS FROM THESE TEAMS FOLLOW.

...WABASH /WABASH COUNTY/...

NATURE: STRAIGHT LINE WINDS
TIME: 1047 PM EDT (ESTIMATED BY RADAR)
LOCATION: NORTHWEST SIDE OF THE TOWN OF WABASH
WIND SPEED: ESTIMATED 90 TO 100 MPH WINDS
DESCRIPTION: A GRAIN SILO AND 2 POLE BARNS WERE COMPLETELY
DESTROYED WITH DEBRIS BLOWN SOUTHEAST. EXTENSIVE TREE DAMAGE WAS
FOUND ON THE NORTHWEST SIDE OF WABASH. 

...TORNADO /VAN WERT COUNTY/...
RATING: EF0
MAXIMUM ESTIMATED WIND SPEED: 80 MPH
PATH LENGTH: 0.2 MILES PATH 
WIDTH /MAXIMUM/: 80 YARDS 
TIME: 1127 PM EDT 
LOCATION: WILLSHIRE OHIO /GREEN STREET FROM WILLIAMS STREET TO SR
49/
DESCRIPTION: A WEAK EF0 TORNADO TOUCHED DOWN ON THE SOUTH SIDE
OF THE TOWN OF WILLSHIRE AT THE INTERSECTION OF GREEN STREET AND
WILLIAMS STREET AND CONTINUED 3 BLOCKS EAST TO THE INTERSECTION OF
GREEN STREET AND SR 49. ONE WITNESS SAW TORNADO DESCEND IN HIS
YARD...SNAP OFF 2 LARGE TREES AND CONTINUE DOWN THE STREET. OTHER
TREE DAMAGE WAS NOTED. A FEW HOMES SUSTAINED MAJOR ROOF AND WINDOW
DAMAGE. A FREE STANDING GARAGE WAS ROLLED OFF OF CINDER BLOCK
FOUNDATION. TORNADO WAS ON THE GROUND FOR LESS THAN 2 MINUTES.
MAXIMUM WIND SPEEDS ESTIMATED AT 80 MPH.

...HENRY COUNTY OHIO DAMAGE...

SURVEY IS IN PROGRESS AND DETAILS WILL BE RELAYED AS THEY BECOME
AVAILABLE.

SKYWARN

NWS deploys teams to asses possible tornado damage

June 13, 2013 Jay Farlow

The following is a public information statement the northern Indiana National Weather Service office issued. Sorry about the caps, that’s how NWS sends these and I don’t have time to re-capitalize.

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1101 AM EDT THU JUN 13 2013 /1001 AM CDT THU JUN 13 2013/

...DAMAGE SURVEYS BEING CONDUCTED TODAY...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS DEPLOYED TWO
DAMAGE ASSESSMENT TEAMS TO SURVEY POSSIBLE TORNADO DAMAGE FROM LAST
NIGHTS SEVERE WEATHER. ONE TEAM HAS DEPLOYED TO WABASH INDIANA
AND WILL BE WORKING IN CONJUNCTION WITH WABASH COUNTY EMERGENCY
MANAGEMENT. THE SECOND TEAM HAS DEPLOYED TO HENRY COUNTY OHIO AND
WILL BE WORKING IN CONJUNCTION WITH HENRY COUNTY EMERGENCY
MANAGEMENT. VAN WERT COUNTY OHIO EMERGENCY MANAGEMENT IS SURVEYING
A THIRD AREA OF DAMAGE IN THE TOWN OF WILLSHIRE IN SOUTHERN VAN
WERT COUNTY. THEY WILL BE WORKING IN CONJUNCTION WITH NWS
WILMINGTON.

RESULTS FROM THESE DAMAGE SURVEYS WILL BE PUBLISHED AS SOON AS
THEY BECOME AVAILABLE.

TO REPORT ADDITIONAL WIND DAMAGE...HAIL...OR FLOODING FROM THE
STORMS PLEASE POST TO THE NWS NORTHERN INDIANA FACEBOOK
PAGE...TWEET TO @NWSIWX...OR SEND AN EMAIL TO OUR WEBMASTER AT
W-IWX.WEBMASTER@NOAA.GOV.

SKYWARN

Last night’s tornado-warned storm over northern Allen County

June 13, 2013 Jay Farlow

W9LW's photo of the storm that prompted a tornado warning in northern Allen County June 12, 2013

Above is a photo I took of the storm cell that prompted the National Weather Service to issue a tornado warning for northern Allen County, Indiana June 12, 2013. I never saw any rotation in the storm, which I reported via ham radio, as did many other ham radio-equipped trained SKYWARN spotters in the area.

SKYWARN

NWS publishes summary from yesterday’s storms

June 13, 2013 Jay Farlow

The National Weather Service (NWS) northern Indiana office published this morning a preliminary summary of “local storm reports” from yesterday’s storms. Local storm reports include reports of funnel clouds, hail, wind damage, etc. Below are a few highlights (sorry about the capital letters — that’s how NWS publishes them and I don’t have time to change them). As you can see, the 37 counties covered by the northern Indiana office can be thankful that they escaped the kind of widespread damage seen in the June 29, 2012 storms.

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

0715 PM     HAIL             9 W WINAMAC             41.05N  86.78W
06/12/2013  E1.75 INCH       PULASKI            IN   PUBLIC

            GOLFBALL SIZE HAIL AT RT 39 AND RT 14 IN PULASKI COUNTY

0730 PM     FUNNEL CLOUD     CULVER                  41.22N  86.42W
06/12/2013                   MARSHALL           IN   EMERGENCY MNGR

0737 PM     HAIL             WINAMAC                 41.05N  86.60W
06/12/2013  E1.75 INCH       PULASKI            IN   EMERGENCY MNGR

            GOLFBALL SIZE HAIL NEAR WINAMAC

0738 PM     HAIL             WINAMAC                 41.05N  86.60W
06/12/2013  M1.75 INCH       PULASKI            IN   TRAINED SPOTTER

            GOLF BALL SIZED HAIL LASTED FOR 2 MIN. MINOR DAMAGE TO
            VEHICLES

0825 PM     FUNNEL CLOUD     CHURUBUSCO              41.23N  85.32W
06/12/2013                   WHITLEY            IN   TRAINED SPOTTER

            ROTATING WALL CLOUD WITH FUNNEL CLOUD NEAR CHURBUSCO

0847 PM     TSTM WND GST     2 SW KINGSBURY          41.50N  86.73W
06/12/2013  M60 MPH          LA PORTE           IN   TRAINED SPOTTER

            60MPH WIND GUST NEAR 39 AND HWY 6

0930 PM     TSTM WND DMG     TWELVE MILE             40.87N  86.23W
06/12/2013                   CASS               IN   EMERGENCY MNGR

            LARGE BRANCH FELL ON AND INTO HOUSE

1010 PM     TSTM WND GST     WOLCOTT                 40.76N  87.04W
06/12/2013  M65 MPH          WHITE              IN   TRAINED SPOTTER

            MEASURED 65MPH GUST... ESTIMATED 45MPH SUSTAINED FOR 15
            MIN

1010 PM     HEAVY RAIN       HUNTERTOWN              41.23N  85.17W
06/12/2013  M1.15 INCH       ALLEN              IN   COCORAHS

            1.15 INCHES OF RAIN IN PAST 20 MINUTES

1030 PM     TSTM WND DMG     5 E ROCHESTER           41.06N  86.12W
06/12/2013                   FULTON             IN   PUBLIC

            ESTIMATED THREE FOOT DIAMETER TREE BRANCH FELL ONTO
            ROOF OF HOME. TIME ESTIMATED FROM RADAR.

1030 PM     TSTM WND DMG     COLUMBIA CITY           41.16N  85.49W
06/12/2013                   WHITLEY            IN   LAW ENFORCEMENT

            TREES DOWN ACROSS THE COUNTY

1040 PM     TSTM WND DMG     5 E ROCHESTER           41.06N  86.12W
06/12/2013                   FULTON             IN   PUBLIC

            3 FT DIAMETER TREE BRANCH FELL ON HOUSE

1046 PM     TSTM WND GST     3 SE ONWARD             40.66N  86.15W
06/12/2013  E80 MPH          MIAMI              IN   TRAINED SPOTTER

            TRAINED SPOTTER ESTIMATES 70 TO 80MPH GUST NEAR CASS
            MIAMI COUNTY BORDERS NEAR GRISSOM AFB

1047 PM     TSTM WND DMG     WABASH                  40.80N  85.82W
06/12/2013                   WABASH             IN   PUBLIC

            SEVERAL LARGE TREES DOWN ON THE SOUTH SIDE OF WABASH.
            TIME ESTIMATED FROM RADAR.

1059 PM     TSTM WND DMG     MACY                    40.96N  86.13W
06/12/2013                   MIAMI              IN   EMERGENCY MNGR

            LAW ENFORCEMENT REPORTS MANY POWERLINES DOWN IN AREA OF
            500 AND 600 N

1059 PM     TSTM WND DMG     DENVER                  40.87N  86.08W
06/12/2013                   MIAMI              IN   EMERGENCY MNGR

            LARGE TREE BLOCKING SR 19 NEAR 500 N...BROUGHT DOWN
            POWERLINES...SR 19 CLOSED AT THIS TIME

1100 PM     TSTM WND DMG     3 E CHILI               40.85N  85.97W
06/12/2013                   MIAMI              IN   TRAINED SPOTTER

            DAMAGE ALONG E 600 N EAST OF PAW PAW PIKE. LARGE WALNUT
            TREE UPROOTED. ROOF OFF HOUSE. HOG BARN PARTIALLY
            DESTOYED.

1102 PM     TSTM WND GST     1 WSW BLUFFTON          40.73N  85.19W
06/12/2013  E60 MPH          WELLS              IN   TRAINED SPOTTER

            LARGE TREE DOWN ON THE WEST SIDE OF BLUFFTON.

1114 PM     TSTM WND GST     NW MARION               40.56N  85.66W
06/12/2013  M65 MPH          GRANT              IN   TRAINED SPOTTER

            MEARSURED GUST AT 300W AND 300N GRANT COUNTY

1114 PM     TSTM WND DMG     HUNTINGTON              40.88N  85.50W
06/12/2013                   HUNTINGTON         IN   EMERGENCY MNGR

            NUMEROUS TREE DOWN THROUGHOUT HUNTINGTON

1117 PM     TSTM WND DMG     4 W WARREN              40.68N  85.50W
06/12/2013                   HUNTINGTON         IN   EMERGENCY MNGR

            OVERTURNED SEMI ON I-69 MILEMARKER 274

1125 PM     FLOOD            5 N COLUMBIA CITY       41.23N  85.49W
06/12/2013                   WHITLEY            IN   AMATEUR RADIO

            FLOODED ROADS 500N EAST OF 109...1FT OF WATER ON GROUND
            100FT WIDE

1149 PM     TSTM WND DMG     CONTINENTAL             41.10N  84.27W
06/12/2013                   PUTNAM             OH   EMERGENCY MNGR

            REPORTS OF STRUCTURAL DAMAGE AROUND CONTINENTAL TIME
            EST FROM RADAR

1155 PM     TSTM WND DMG     HAMLER                  41.23N  84.03W
06/12/2013                   HENRY              OH   TRAINED SPOTTER

            38MPH SUSTAINED FOR 10 MIN WITH STRONGER GUSTS..SEVERAL
            2 AND 4 INCH BRANCHES DOWN..SOME BRANCHES UP TO 15 FEET
            IN LENGTH..SHEET METAL REMOVED FROM BUILDING

1158 PM     TSTM WND DMG     HAMLER                  41.23N  84.03W
06/12/2013                   HENRY              OH   EMERGENCY MNGR

            TREES AND POWER LINES DOWN EVERYWHERE ACROSS HAMLER

1200 AM     TSTM WND DMG     HAMLER                  41.23N  84.03W
06/13/2013                   HENRY              OH   EMERGENCY MNGR

            45FT SPRUCE UPROOTED 2FT TRUNK..MINOR ROOF DAMAGE..TOP
            OF MAPLE TREE TAKEN OFF

1200 AM     TSTM WND DMG     5 W HAMLER              41.23N  84.13W
06/13/2013                   HENRY              OH   EMERGENCY MNGR

            TREES DOWN ON HENRY COUNTY ROAD 3 BETWEEN COUNTY ROADS
            G AND H

1215 AM     TSTM WND DMG     HAMLER                  41.23N  84.03W
06/13/2013                   HENRY              OH   EMERGENCY MNGR

            LARGE TREES DOWN AND POSSIBLE STRUCTURAL CO RD F
            BETWEEN 10 AND 109

SKYWARN

What do they mean, “particularly dangerous situation?”

June 12, 2013 Jay Farlow

Particularly dangerous situation (PDS) severe thunderstorm watches are very rare, so there’s a good chance you’ve never heard one before today. Want to know more about PDS watches? There’s a good article on Wikipedia.

SKYWARN

Particularly Dangerous Situation severe thunderstorm watch issued

June 12, 2013 Jay Farlow

Map showing counties included in PDS severe thunderstorm watch #300

URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 300
   NWS STORM PREDICTION CENTER NORMAN OK
   400 PM CDT WED JUN 12 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHEAST ILLINOIS
     NORTHERN INDIANA
     SOUTHERN LOWER MICHIGAN
     NORTHWEST OHIO
     SOUTHEAST WISCONSIN
     LAKE ERIE
     LAKE MICHIGAN

   * EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM
     400 PM UNTIL 100 AM CDT.

   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...

   * PRIMARY THREATS INCLUDE...
     NUMEROUS SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH LIKELY
     SEVERAL VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     A FEW TORNADOES POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EITHER SIDE OF A LINE FROM 40 MILES EAST OF FINDLAY
   OHIO TO 60 MILES SOUTH SOUTHWEST OF RACINE WISCONSIN.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU0).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.

SKYWARN

Particularly dangerous situation severe thunderstorm watch planned

June 12, 2013 Jay Farlow

Map showing area where PDS watch will be issued

The National Weather Service Storm Prediction Center plans to issue a “particularly dangerous situation (PDS) severe thunderstorm watch” for the northern third of Indiana by 6 p.m. EDT, according to a mesoscale discussion the SPC issued at 4:38 p.m. EDT.

The SPC issues PDS severe thunderstorm watches when there is a threat of a high-end “derecho” with widespread wind damage.

According to the mesoscale discussion, thunderstorms developing across northeastern Iowa, southern Wisconsin and northwestern Illinois will congeal into an accelerating convective system and move east-southeastward across northern Indiana during the late afternoon and evening hours. Damaging winds, some in excess of 65 knots, (74.8 mph) are likely, along with embedded tornadoes.

SKYWARN

4 p.m. SPC update: High risk still in effect

June 12, 2013 Jay Farlow

Convective outlook map showing slight, moderate and high-risk areas

The National Weather Service Storm Prediction Center (SPC) issued an updated Day One Convective Outlook at 4 p.m. EDT. The updated outlook continues to indicate a high risk for severe weather in the northern third of Indiana between 3 p.m. today and 8 a.m. tomorrow.

In the 4 p.m. update, SPC wrote that the threat for a significant, widespread damaging wind event still appeared to be on track from southern portions of the Great Lakes into the Ohio Valley region. Storms were in the process of developing from northeastern Iowa into southern Wisconsin. These initial storms might organize as discrete supercells with an initial tornado threat. Storms should eventually consolidate and transition to an organized complex of thunderstorms (mesoscale convective system), with an increasing threat of significant wind damage as it moves east-southeastward through the southern Great Lakes and Ohio Valley during the evening and overnight.

SKYWARN

New Hazardous Weather Outlook issued

June 12, 2013 Jay Farlow

The National Weather Service Northern Indiana office issues an updated Hazardous Weather Outlook at 1:25 p.m. EDT. It includes the following statement:

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT.

SKYWARN

Update on storm timing

June 12, 2013 Jay Farlow

From tweets sent at around 1 p.m. EDT by the National Weather Service northern Indiana weather forecast office (@nwxiwx):

Storms are expected to fire across the area around the 4-6 PM EDT timeframe. Line/bow echo expected to develop across Nrn. IL this eve…

Line/bow xpctd to race from IL/IN border to IN/OH border from 7 PM to 11 PM EDT timeframe. Wind gusts over 75 mph possible with the line.

Storms early will produce large hail 2″ or more possible, main threat becomes wind damage with the line/bow.

Tornadoes also possible along the warm front and at the northern end of the line/bow. Flash flooding possible as well along the warm front.

Please be prepared for large hail, extreme damaging winds and possible tornadoes late this afternoon into tonight! Stay tuned for updates.

W9LW's Ramblings

NWS survey teams publish preliminary damage reports

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Last night’s tornado-warned storm over northern Allen County

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NWS publishes summary from yesterday’s storms

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Particularly Dangerous Situation severe thunderstorm watch issued

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Update on storm timing

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Severe weather, ham radio & anything else I feel like writing about