Alert archive / Michigan / Special Weather Statements in 2017

Special Weather Statement, NWS Northern Indiana

April 20, 2017Branch County, Hillsdale County, Michigan

NWS Northern Indiana issued this special weather statement at Apr 20, 2017, 5:03 PM EDT for Branch County, Hillsdale County, Michigan. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 20, 2017, 5:03 PM EDT (21:03 UTC)
Expired: Apr 20, 2017, 5:30 PM EDT
In force: 27 min
Issued by: NWS Northern Indiana

Counties Branch County, MI, Hillsdale County, MI

The radar

The Northern Indiana radar (KIWX), 85 km from the middle of the area, began a volume at 21:05 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.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.1 hours before the alert went out and 156 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 543 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 595 m²/s²
0-3 km storm-relative helicity: 665 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 20, 3:42 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, Apr 20, 3:42 PM EDT, 1 hour 21 minutes before

Area Forecast Discussion
National Weather Service Northern Indiana
342 PM EDT Thu Apr 20 2017

.SYNOPSIS...
Issued at 329 PM EDT Thu Apr 20 2017

A cold front will usher in much colder air Friday, lingering into Saturday
with highs only in the 50s (cooler near the lakeshore). Warmer
temperatures and rain chances will return next week.

&&

.SHORT TERM...(This Evening through Friday)
Issued at 329 PM EDT Thu Apr 20 2017

Thunderstorms dotting the forecast area generally east of a
Logansport to Coldwater line with greatest concentration along the
pre-frontal trough now moving into NW Ohio. Storms have struggled
to organize with mainly pea size hail reported and pockets of
40 to 55 (48 kt gusts at Ft Wayne). As the first area departed,
sufficient recovery occurred to allow for a narrow area of sct
storms to develop from Ctrl Illinois into portions of N Indiana.
Actual cold front not too far behind this second line resulting in
a rapid end to all storm chances through the remainder of the
afternoon. Will likely clear watch as back edge of the storms
exits impacted areas.

Vis satellite showing extensive stratocu field to slowly work
east. Could be a period of clearing immediately behind the front
before it arrives. Have increased clouds cover to mostly cloudy
with slower trends on clearing into Friday. Highs Friday will be a
good 15 to 20 degrees cooler across the area with mid 40s NW to
upper 50s SE.

&&

.LONG TERM...(Friday Night through Thursday)
Issued at 329 PM EDT Thu Apr 20 2017

Deep Hudson Bay closed low will remain in place into early next week
before slowly shearing apart and ejecting NE. Influence of the low
will keep moisture and warmer temperatures well suppressed as
longwave trough rounds the base of the trough. Period of somewhat
below normal temperatures will dominate with a shot at some frost
especially Sunday morning. Moderation in temps will occur as
Great Lakes trough exits stage right and heights increase ahead of
the next wave dropping out the Plains by Monday night.

The arrival of the Plains wave will bring a chance for showers to
the area, but not until closer to Wednesday as first embedded wave
shoots to the west of the region before main wave edges east. No
more than chc pops at this point with temperature soaring back above
normal into the 70s.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday Afternoon)
Issued at 142 PM EDT Thu Apr 20 2017

Pre-frontal trough has spawned area of thunderstorms moving
through KSBN currently and will reach KFWA by 19-20z. Not a lot of
activity behind this line but expect some additional development
as main cold front and mid level short wave approach. Not enough
confidence to add another group of prevailing tsra at KSBN given
lack of upstream activity so kept VCTS there while allowed a
longer tempo to cover KFWA. Satellite and surface obs show
extensive area of post frontal MVFR strato cu over IA and western
IL. Hires guidance not handling this well but spectral models show
a lot of low level moisture trapped under inversion tonight into
Friday. Stayed MVFR through rest of tonight and Friday morning.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...Small Craft Advisory until 11 PM EDT Friday for LMZ043-046.

&&

SYNOPSIS...Fisher
SHORT TERM...Fisher
LONG TERM...Fisher
AVIATION...Lashley

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Hazardous weather outlook, Apr 20, 4:39 AM EDT, 12 hours 24 minutes before

Hazardous Weather Outlook
National Weather Service Northern Indiana
439 AM EDT Thu Apr 20 2017

INZ003>005-012>015-020-MIZ077>079-210900-
La Porte-St. Joseph IN-Elkhart-Starke-Pulaski-Marshall-Fulton IN-
White-Berrien-Cass MI-St. Joseph MI-
439 AM EDT Thu Apr 20 2017 /339 AM CDT Thu Apr 20 2017/

This hazardous weather outlook is for portions of southwest Michigan
and northern Indiana.

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms are expected this afternoon. A
strong storm with small hail and gusty winds is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

INZ006>009-016>018-022>027-032>034-MIZ080-081-OHZ001-002-004-005-015-
016-024-025-210900-
Lagrange-Steuben-Noble-De Kalb-Kosciusko-Whitley-Allen IN-Cass IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Branch-
Hillsdale-Williams-Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-
Allen OH-
439 AM EDT Thu Apr 20 2017

This hazardous weather outlook is for portions of northern Indiana...
northwest Ohio and southwest Michigan.

.DAY ONE...Today and Tonight

Scattered to numerous thunderstorms are expected this afternoon. A
few storms could reach severe limits with hail and potentially
damaging winds especially along and east of Interstate 69.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible this afternoon.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

LMZ043-046-210900-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
439 AM EDT Thu Apr 20 2017

This hazardous weather outlook is for portions of The Nearshore
Waters of Southeastern Lake Michigan.

.DAY ONE...Today and Tonight

An isolated thunderstorm is possible from this morning into early
afternoon.

Hazardous conditions for small craft will develop today and continue
through tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Hazardous conditions for small craft are possible Friday.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

In the hours before

Local storm report, Apr 20, 3:04 PM EDT, 1 hour 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
304 PM EDT THU APR 20 2017

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

0259 PM     TSTM WND GST     2 ENE NINE MILE         40.98N 85.19W
04/20/2017  M55 MPH          ALLEN              IN   ASOS

&&

GH

Special weather statement, Apr 20, 3:55 PM EDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service Northern Indiana
355 PM EDT THU APR 20 2017

MIZ078-079-202030-
St. Joseph-Cass-
355 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CASS AND CENTRAL
ST. JOSEPH COUNTIES...

At 355 PM EDT, a strong thunderstorm was located near Cassopolis, or
11 miles north of Simonton Lake, moving east at 35 mph.

Wind gusts up to 50 mph and dime size hail are possible with this
storm.

Locations impacted include...
Sturgis, Three Rivers, Constantine, Cassopolis, Centreville,
Marcellus, Nottawa, Penn, Flowerfield, Mendon, Vandalia, Klinger
Lake, Donnell Lake, Fishers Lake, Jones, Diamond Lake, Corey Lake,
Shavehead Lake, Clear Lake and Wakelee.

LAT...LON 4206 8546 4179 8544 4185 8600 4193 8600
      4207 8586
TIME...MOT...LOC 1955Z 266DEG 28KT 4191 8590

NWS

Local storm report, Apr 20, 4:20 PM EDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
420 PM EDT THU APR 20 2017

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

0420 PM     HAIL             THREE RIVERS            41.94N 85.63W
04/20/2017  M0.88 INCH       ST. JOSEPH         MI   TRAINED SPOTTER

&&

GH

Local storm report, Apr 20, 4:27 PM EDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
427 PM EDT THU APR 20 2017

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

0412 PM     HAIL             THREE RIVERS            41.95N 85.63W
04/20/2017  M1.50 INCH       ST. JOSEPH         MI   PUBLIC

            FROM SOCIAL MEDIA.

&&

GH

Special weather statement, Apr 20, 4:39 PM EDT, 24 minutes before

Special Weather Statement
National Weather Service Northern Indiana
439 PM EDT THU APR 20 2017

OHZ015-016-024-202115-
Putnam-Van Wert-Paulding-
439 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT PUTNAM...SOUTHEASTERN PAULDING
AND NORTHEASTERN VAN WERT COUNTIES...

At 439 PM EDT, a strong thunderstorm was located near Ottoville, or 8
miles northwest of Delphos, moving east at 35 mph.

Wind gusts up to 50 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Delphos, Ottawa, Columbus Grove, Leipsic, Kalida, Pandora,
Continental, Glandorf, Ottoville, Middle Point, Fort Jennings, Grover
Hill, Dupont, West Leipsic, Cloverdale, Miller City, Wetzel,
Prentiss, Kieferville and Roselms.

LAT...LON 4092 8390 4092 8399 4090 8401 4090 8411
      4089 8411 4084 8447 4102 8454 4117 8404
      4117 8400
TIME...MOT...LOC 2039Z 253DEG 31KT 4096 8441

NWS

Special weather statement, Apr 20, 5:03 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Northern Indiana
503 PM EDT THU APR 20 2017

MIZ080-081-202130-
Branch-Hillsdale-
503 PM EDT THU APR 20 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT BRANCH AND NORTHWESTERN
HILLSDALE COUNTIES...

At 502 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Bronson to 6 miles southeast of
Burlington. Movement was east at 35 mph.

Wind gusts up to 50 mph and pea size hail are possible with these
storms.

Locations impacted include...
Coldwater, Hillsdale, Bronson, Jonesville, Quincy, Litchfield,
Reading, Long Lake, Ray, Girard, Kinderhook, Moscow, Batavia,
California, Gilead, Montgomery, Bear Lake, Allen, Lake Wilson and
Lake Of The Woods.

This includes INTERSTATE 69 IN MICHIGAN between MILE MARKERs 1 and
21.

LAT...LON 4176 8480 4176 8529 4181 8529 4207 8502
      4207 8442
TIME...MOT...LOC 2102Z 272DEG 29KT 4181 8524 4206 8497

NWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:13 PM EDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb	47 min
Apr 19, 10:57 PM EDT	Small Craft Advisory	IWX		54 hr
Apr 20, 2:08 PM EDT	Severe Thunderstorm Warning	IWX	Elkhart, Kosciusko	23 min
Apr 20, 2:28 PM EDT	Severe Thunderstorm Warning	IWX	Noble	34 min
Apr 20, 5:59 PM EDT	Special Weather Statement	IWX	DeKalb	31 min
Apr 19, 8:09 PM EDT	Special Weather Statement	IWX	Defiance	36 min
Apr 19, 8:45 PM EDT	Special Weather Statement	IWX	Paulding, Putnam	30 min
Apr 19, 9:00 PM EDT	Special Weather Statement	IWX	Henry	30 min
Apr 20, 3:38 PM EDT	Severe Thunderstorm Warning	IWX	Defiance	21 min
Apr 20, 4:39 PM EDT	Special Weather Statement	IWX	Putnam	36 min
Apr 20, 4:54 PM EDT	Severe Thunderstorm Warning	IWX	Putnam	36 min
Apr 20, 5:35 PM EDT	Special Weather Statement	IWX	Putnam	25 min
Apr 20, 6:23 PM EDT	Special Weather Statement	IWX	Putnam	37 min
Apr 20, 6:53 PM EDT	Special Weather Statement	IWX	Fulton	37 min
Apr 20, 3:55 PM EDT	Special Weather Statement	IWX	Saint Joseph	35 min
Apr 20, 4:06 PM EDT	Severe Thunderstorm Warning	IWX	Branch, Cass, Saint Joseph	39 min

Nearby

Special Weather Statements in Michigan, 2017 Every special weather statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.