Special Weather Statement, NWS Northern Indiana

Area Forecast Discussion
National Weather Service Northern Indiana
722 PM EDT Fri Jun 11 2021

.SYNOPSIS...
Issued at 1240 PM EDT Fri Jun 11 2021

Hot this afternoon with a low chance of isolated thunderstorms. A
cool front will bring a better chance for storms Saturday
afternoon with heavy downpours and gusty winds. Drier and less
humid weather is ahead for early next week.

&&

.SHORT TERM...(This Afternoon through Saturday)
Issued at 233 PM EDT Fri Jun 11 2021

Isolated diurnally driven convection has been slow to develop so far
this afternoon with an approaching shortwave ridge becoming more
dominant locally. Associated warmer/drier conditions aloft will
lead to a dry/hot remainder of the afternoon for most, though
diurnal instability could be enough to develop an isolated storm
near subtle outflow/lake boundaries late this afternoon. CAMS also
hint at the possibility of central MI convection potentially
drifting south into our far ne IN and sc MI counties this evening.

A series of convectively aided shortwaves will top the shortwave
ridge axis southeast into the area later tonight into Saturday.
Any associated shower activity should struggle to reach our area
tonight into Saturday morning as it outruns any dynamical support.
This likely changes by Saturday afternoon as an associated pre-
frontal outflow, augmented by a Lake MI lake breeze, works east
into the area. Fold over of a the low level thermal ridge with
MLCAPE values pushing 1500-2000j/kg suggest decent chances for
convection in the vicinity of the boundary, and subsequent outflow
boundaries by peak heating. Lacking shear/flow/forcing will
likely once again limit organization/coverage to scattered. Deep
layer shear magnitudes are progged to top out near 20 knots which
should keep the severe threat in check for the most part, though
steeper low level lapse rates could present an isolated wind
damage threat in stronger cores.

&&

.LONG TERM...(Saturday Night through Friday)
Issued at 233 PM EDT Fri Jun 11 2021

Less humid air will filter in post-frontal on Sunday with highs
reaching the 80s. Amplification of a Rockies/Plains upper ridge and
downstream eastern conus troughing will allow a potent shortwave and
cold front to drop through the local area on Monday. Poor moisture
return into this fast moving frontal boundary casts doubt on rain
chances. Comfortable temps and humidity levels then become
established in northerly flow for for the middle of the week.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday Evening)
Issued at 720 PM EDT Fri Jun 11 2021

VFR conditions through this TAF cycle with a light N/NE flow. Weak
frontal boundary approaching Saturday afternoon will bring a
chance for SH/TSRA to the area. HREF members inconclusive on
coverage of precip so will go with VCSH for now.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...NONE.
&&

SYNOPSIS...Steinwedel/Brown
SHORT TERM...Steinwedel
LONG TERM...Steinwedel
AVIATION...JAL

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Hazardous Weather Outlook
National Weather Service Northern Indiana
321 AM EDT Fri Jun 11 2021

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-120730-
La Porte-St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-
Pulaski-Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Berrien-
Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-
Henry-Paulding-Putnam-Van Wert-Allen OH-
321 AM EDT Fri Jun 11 2021 /221 AM CDT Fri Jun 11 2021/

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

.DAY ONE...Today and tonight.

Isolated thunderstorms with brief heavy rain are possible from mid
afternoon into early evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a good chance for thunderstorms Saturday. The storms may be
accompanied with torrential rainfall and gusty winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LMZ043-046-120730-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
321 AM EDT Fri Jun 11 2021

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Thunderstorms with gusty winds are possible Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
915 PM EDT FRI JUN 11 2021

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

0835 PM     NON-TSTM WND GST 2 SW FISHERS LAKE       41.97N 85.60W
06/11/2021  M66 MPH          ST. JOSEPH         MI   AWOS

            AWOS STATION KHAI THREE RIVERS.

&&

Special Weather Statement
National Weather Service Northern Indiana
926 PM EDT Fri Jun 11 2021

INZ005-006-008-120200-
Lagrange-Noble-Elkhart-
926 PM EDT Fri Jun 11 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN ELKHART...
NORTHWESTERN NOBLE AND SOUTHWESTERN LAGRANGE COUNTIES...

At 924 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Lagrange to 7 miles northwest of
Topeka to near Middlebury. Strong winds are present ahead of the
thunderstorm line. Movement was south at 25 mph.

Winds in excess of 40 mph and pea size hail are possible.

Locations impacted include...
Goshen, Ligonier, Lagrange, Middlebury, Topeka, Millersburg, New
Paris, Benton, Shipshewana, Honeyville, Emma and Cosperville.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4147 8546 4144 8567 4150 8582 4168 8574
      4168 8559 4169 8542
TIME...MOT...LOC 0124Z 011DEG 20KT 4168 8546 4162 8561 4167 8575

HAIL...0.25IN
WIND...40MPH

Brown

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