Alert archive / Michigan / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 46, NWS Northern Indiana

June 10, 2020Branch County, Hillsdale County, Michigan; Defiance County, Williams County, Ohio; DeKalb County, Steuben County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jun 10, 2020, 3:16 PM EDT for Branch County, Hillsdale County, Michigan; Defiance County, Williams County, Ohio; DeKalb County, Steuben County, Indiana. It was in force for 44 min. 3 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 10, 2020, 3:16 PM EDT (19:16 UTC)
Expired: Jun 10, 2020, 4:00 PM EDT
In force: 44 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 80.0 mph

Counties DeKalb County, IN, Steuben County, IN, Branch County, MI, Hillsdale County, MI, Defiance County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 100 km from the middle of the area, began a volume at 19:16 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 10, 3:20 PM EDT	TSTM WND DMG	2 W Bridgewater Center, OH	REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.
Jun 10, 3:20 PM EDT	TSTM WND DMG	Hillsdale, MI	NUMEROUS TREES AND POWER LINES DOWN ACROSS HILLSDALE COUNTY.
Jun 10, 3:54 PM EDT	TSTM WND DMG	2 W Bridgewater Center, OH	CORRECTS TIME OF PREVIOUS TSTM WND DMG REPORT FROM 2 W BRIDGEWATER CENTER. REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.

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 3 storm reports to this severe thunderstorm warning; the first came 4 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 10, 11:54 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.3 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: 1134 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

As transmitted.

358 
WUUS53 KIWX 101916
SVRIWX
INC033-151-MIC023-059-OHC039-171-102000-
/O.NEW.KIWX.SV.W.0046.200610T1916Z-200610T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
316 PM EDT Wed Jun 10 2020

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Eastern Steuben County in northeastern Indiana...
  Northeastern De Kalb County in northeastern Indiana...
  Eastern Branch County in southwestern Michigan...
  Hillsdale County in southeastern Michigan...
  Northwestern Defiance County in northwestern Ohio...
  Western Williams County in northwestern Ohio...

* Until 400 PM EDT.

* At 315 PM EDT, severe thunderstorms were located along a line
  extending from near Reading to near Butler, moving northeast at 65
  mph.

  These are very dangerous storms.

  HAZARD...80 mph wind gusts and quarter 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.

* Severe thunderstorms will be near...
  Quincy and Reading around 320 PM EDT.
  Hillsdale, Jonesville and Litchfield around 325 PM EDT.
  Montpelier around 330 PM EDT.
  Pioneer around 335 PM EDT.

Other locations impacted by these severe thunderstorms include York,
Alvarado, North Adams, Lake Wilson, Ransom, Pleasant Lake, Ray,
Hamilton Lake, Moscow and Lake Seneca.

This includes the following highways...
 Interstate 69 in Indiana between mile markers 331 and 336, and
 between mile markers 352 and 357.
 Interstate 69 in Michigan between mile markers 1 and 2.
 Interstate 80 in Indiana between mile markers 144 and 156.
 Interstate 80 in Ohio between mile markers 0 and 12.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage. SEEK SHELTER NOW inside a turdy structure and stay away 
from windows! 
&&

LAT...LON 4191 8436 4137 8473 4134 8508 4207 8494
      4207 8437
TIME...MOT...LOC 1915Z 223DEG 56KT 4186 8483 4144 8482 

HAIL...1.00IN
WIND...80MPH
 
$$

JBALL

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 Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 1:23 PM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 10, 1:23 PM EDT, 1 hour 53 minutes before

Area Forecast Discussion
National Weather Service Northern Indiana
123 PM EDT Wed Jun 10 2020

.SYNOPSIS...
Issued at 328 AM EDT Wed Jun 10 2020

Severe thunderstorms capable of damaging wind gusts are expected
today, roughly from noon to 8 PM eastern time. Damaging wind
gusts may be most widespread toward Interstate 69 and eastward
into Ohio. The extended forecast remains largely dry at this
time.

&&

.UPDATE...
Issued at 1135 AM EDT Wed Jun 10 2020

Continued strong confidence in multiple severe weather events,
especially eastern half of CWA this afternoon. Area of concern
developing on leading edge of dryline advancing eastward into
southwest Indiana/KEVV vicinity. Hi-res satellite data showing
rapid transition to convective streets and sheared towering
cumulus field. As this embedded mesoscale vorticity lifts north-
northeast. Effective shear, with speed shear largely attributing,
to 50-55 knots over northern Indiana coincident with moderate to
strong unstable airmass. Pockets of heating with surface
temperatures into middle 80s and dewpoints in middle 70s with
3000-3500 J/kg SBCAPE early this afternoon will continue to
provide upscale growth of linear segments, potential LEWP with an
embedded tornado, though by far the greatest risk is for
widespread damaging wind gusts, significant tree and possible
structural damage in isolated areas.

&&

.SHORT TERM...(This Afternoon through Thursday)
Issued at 328 AM EDT Wed Jun 10 2020

Severe thunderstorms capable of damaging wind gusts are expected
this afternoon and evening. The meteorology is described in the
below paragraphs. The basics are: discrete thunderstorms can develop
in the early afternoon and are expected to then form into a squall
line near and east of Interstate 69, tracking through northwest
Ohio. The initial starting point of the thunderstorms offers medium
confidence, but is perhaps near Indiana route 15. High confidence in
damaging wind gusts as the primary hazard. The threat ends
near/after 8 PM EDT.

&&

.LONG TERM...(Thursday Night through Tuesday)
Issued at 328 AM EDT Wed Jun 10 2020

An upper-level trough digs in later Friday into Saturday with a
secondary cold front at 850 mb. The GFS has been adamant about rain
chances with this feature and it now seems the ECMWF is jumping on
board. However, timing varies. Thereafter, guidance attempts to
develop a cut-off low over the Northeast US (00z GFS) to the eastern
Great Lakes (00z ECMWF) as a towering ridge centered over Texas
overtakes the aformentioned upper-level trough. For now, will focus
on getting through today's severe thereat and carry on in the
extended with limited/nil rain chances.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday Afternoon)
Issued at 122 PM EDT Wed Jun 10 2020

A 40 kt low level jet pushes towards the region ahead of a strong
cold front. Gusty synoptic winds are expected today between 25
and 30 kts out of the southwest before dying off after midnight
tonight. Thunderstorms will have the potential to create damaging
winds as well as the possibility of large hail and isolated
tornadoes. Heavy rain from thunderstorms will have the potential
to reduce CIGs/VISBY into IFR to LIFR threshold, but quick storm
motions should make those conditions brief. Storms should be out
of the area during the evening/early overnight. Then, a brief
period of MVFR CIGs are possible around 3z-5z as a secondary CAA
area moves through. Winds will continue to die down and clouds
will clear Thursday as the remnants of Cristobal move away from
the area.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Beach Hazards Statement through Thursday morning for INZ003.

MI...Beach Hazards Statement through Thursday morning for MIZ077.

OH...NONE.
LM...Small Craft Advisory until 11 AM EDT Thursday for LMZ043-046.

&&

UPDATE...Murphy
SYNOPSIS...Brown
SHORT TERM...Brown
LONG TERM...Brown
AVIATION...Roller

Visit us at www.weather.gov/iwx

Follow us on Facebook...Twitter...and YouTube at:
www.facebook.com/NWSNorthernIndiana
www.twitter.com/nwsiwx
www.youtube.com/NWSNorthernIndiana

Hazardous weather outlook, Jun 10, 3:58 AM EDT, 11 hours 18 minutes before

Hazardous Weather Outlook
National Weather Service Northern Indiana
358 AM EDT Wed Jun 10 2020

INZ005>009-016>018-023>027-032>034-MIZ078>081-OHZ001-002-004-005-015-
016-024-025-110800-
Elkhart-Lagrange-Steuben-Noble-De Kalb-Kosciusko-Whitley-Allen IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Cass MI-
St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-Henry-
Paulding-Putnam-Van Wert-Allen OH-
358 AM EDT Wed Jun 10 2020

This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.

.DAY ONE...Today and tonight.

Thunderstorms capable of producing damaging wind gusts are expected
today. Please ensure you have a reliable method to receive weather
watches and warnings.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions.

INZ003-MIZ077-110800-
La Porte-Berrien-
358 AM EDT Wed Jun 10 2020 /258 AM CDT Wed Jun 10 2020/

...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS AFTERNOON THROUGH
THURSDAY MORNING...

This Hazardous Weather Outlook is for northern Indiana and
southwest Michigan.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Beach Hazards Statement.

Additionally, thunderstorms today could produce locally damaging wind
gusts.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous beach conditions are expected again on Thursday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions.

INZ004-012>015-020-022-110800-
St. Joseph IN-Starke-Pulaski-Marshall-Fulton IN-White-Cass IN-
358 AM EDT Wed Jun 10 2020 /258 AM CDT Wed Jun 10 2020/

This Hazardous Weather Outlook is for northern Indiana.

.DAY ONE...Today and tonight.

Thunderstorms today could produce locally damaging wind gusts.
However, the severe thunderstorm risk is greatest toward eastern
Indiana, northwest Ohio and southeast Michigan.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

LMZ043-046-110800-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
358 AM EDT Wed Jun 10 2020

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT THURSDAY...

This Hazardous Weather Outlook is for the nearshore waters of
southeastern Lake Michigan.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Small Craft Advisory.

Thunderstorms are possible tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Small Craft Advisory.

In the hours before

Local storm report, Jun 10, 3:01 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
301 PM EDT WED JUN 10 2020

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

0235 PM     TSTM WND DMG     1 NNE BLUE LAKE         41.25N 85.35W
06/10/2020                   WHITLEY            IN   EMERGENCY MNGR

            2 LARGE TREES DOWN.

&&

Local storm report, Jun 10, 3:02 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
302 PM EDT WED JUN 10 2020

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

0245 PM     TSTM WND GST     3 ENE WALLEN            41.18N 85.10W
06/10/2020  E60 MPH          ALLEN              IN   TRAINED SPOTTER

            AT INTERSTATE 69 AND STATE ROUTE 1.

&&

LWF

Local storm report, Jun 10, 3:03 PM EDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
303 PM EDT WED JUN 10 2020

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

0225 PM     TSTM WND GST     1 NNE PEABODY           41.10N 85.48W
06/10/2020  M58 MPH          WHITLEY            IN   TRAINED SPOTTER

&&

LWF

Local storm report, Jun 10, 3:05 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
305 PM EDT WED JUN 10 2020

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

0258 PM     HAIL             2 NNW FORT WAYNE        41.10N 85.15W
06/10/2020  M1.00 INCH       ALLEN              IN   PUBLIC

&&

CR

Local storm report, Jun 10, 3:08 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
308 PM EDT WED JUN 10 2020

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

0200 PM     TSTM WND DMG     PLATO                   41.64N 85.33W
06/10/2020                   LAGRANGE           IN   PUBLIC

            ESTIMATED 12 INCH DIAMETER TREES DOWN.

&&

CR

Local storm report, Jun 10, 3:10 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
310 PM EDT WED JUN 10 2020

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

0224 PM     TSTM WND DMG     LA FONTAINE             40.67N 85.72W
06/10/2020                   WABASH             IN   PUBLIC

            TREES DOWN.

&&

CR

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 3:46 AM EDT	Beach Hazards Statement	IWX		31 hr
Jun 10, 12:29 PM EDT	Special Weather Statement	IWX	Saint Joseph	31 min
Jun 10, 12:40 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	35 min
Jun 10, 12:56 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Cass, Saint Joseph	49 min
Jun 10, 1:08 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Saint Joseph	52 min
Jun 10, 1:10 PM EDT	Special Weather Statement	IWX	Hillsdale	35 min
Jun 10, 1:41 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Saint Joseph	49 min
Jun 10, 2:29 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Hillsdale	16 min
Jun 10, 2:40 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Hillsdale	50 min
Jun 10, 3:07 PM EDT	Severe Thunderstorm Warning	IWX	Hillsdale	38 min
Jun 10, 3:51 PM EDT	Severe Thunderstorm Warning	IWX	Hillsdale	24 min
Jun 10, 3:58 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Fulton, Paulding, Williams	32 min
Jun 10, 4:32 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Fulton, Henry, Williams	43 min
Jun 10, 4:52 PM EDT	Special Weather Statement	IWX	Allen, Putnam	23 min
Jun 10, 5:01 PM EDT	Severe Thunderstorm Warning	IWX	Allen, Putnam	30 min
Jun 10, 5:18 PM EDT	Special Weather Statement	IWX	Defiance	27 min
Jun 10, 5:29 PM EDT	Severe Thunderstorm Warning	IWX	Defiance, Fulton, Henry, Williams	27 min
Jun 10, 5:59 PM EDT	Special Weather Statement	IWX	Fulton, Henry	31 min
Jun 10, 12:25 PM EDT	Special Weather Statement	IWX	Fulton	35 min
Jun 10, 12:33 PM EDT	Special Weather Statement	IWX	Elkhart	27 min
Jun 10, 12:40 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Fulton, Kosciusko, Marshall, Saint Joseph	35 min
Jun 10, 12:43 PM EDT	Special Weather Statement	IWX	Miami	32 min
Jun 10, 12:49 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Miami, Wabash	26 min
Jun 10, 1:14 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko, LaGrange, Noble, Wabash	46 min
Jun 10, 1:16 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Fulton, Miami, Wabash	29 min
Jun 10, 1:47 PM EDT	Severe Thunderstorm Warning	IWX	Grant, Huntington, Miami, Wabash, Whitley	28 min
Jun 10, 2:13 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb, Grant, Huntington, Miami, Noble and 3 more	32 min
Jun 10, 2:55 PM EDT	Special Weather Statement	IWX	Blackford, Wells	35 min
Jun 10, 3:09 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Allen, Blackford, Grant, Huntington, Wells	36 min
Jun 10, 3:46 PM EDT	Special Weather Statement	IWX	Allen	29 min
Jun 10, 4:09 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	39 min
Jun 10, 4:50 PM EDT	Special Weather Statement	IWX	Allen	25 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2020 Severe Thunderstorm Warnings in Ohio, 2020 Severe Thunderstorm Warnings in Indiana, 2020 Every severe thunderstorm warning in 2020

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.