High Wind in Indiana, January 10, 2017

Name: High Wind in Indiana, January 10, 2017
Start: 2017-01-10T17:45
End: 2017-01-10T18:00
Location: Indiana

January 10, 2017 · NWS LOT · 2 events in 2 counties and zones

Strong low pressure moved across the Midwest, bringing gusts to 45 to 50 mph across much of northwest Indiana.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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Wind
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Fire, smoke and dust
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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LOT wrote it up.

Strong low pressure moved across the Midwest, bringing gusts to 45 to 50 mph across much of northwest Indiana.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before the first event at Jan 10, 3:42 PM CST, 2 hours 3 minutes earlier.

Area forecast discussion, Jan 10, 3:42 PM CST, 2 hours 3 minutes before

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
342 PM CST Tue Jan 10 2017

.SHORT TERM...
208 PM CST

Through Wednesday...

We opted to go ahead and issue the high wind warning for eastern
Illinois and northwestern Indiana given that wind gusts within
the warm sector were already peaking at or just above 45 KT.
However, since then wind gusts have eased just a bit to around 40
KT. It appears likely that wind gusts will again increase,
potentially as high as 50 KT (60 MPH) for a period late this
afternoon into the early evening as a strong cold front shifts
over the area.

The parent surface low, now down to 987 MB and centered just north
of MSN in southern Wisconsin, is expected to continue to deepen
into this evening as it shifts northeastward over the northern
portion of Lake Michigan. This track, along with the fact that the
low is still deepening, will result in very strong isallobaric
pressure rises (up to 20 MB/6hr) overspreading the area late this
afternoon/early this evening with the passage of the cold front.
This will in return help drive a short period of intense wind
gusts for an hour or two following the frontal passage. With this
in mind, there are no changes planned to the going wind headlines.
However, I suspect the wind warning will be able to be dropped
early, as the potential for 50 KT winds will end quickly after 8
PM this evening.

Aside from the wind, there is an area of showers currently moving
towards northeastern Illinois. While this area is void of
lightning at the moment, there could be the development of a few
thunderstorms, particularly over my southeastern counties over
the next couple hours. While instability is a limiting factor, the
strong dynamics of this storm system could overcome this. Given
the very strong winds off the surface (75 to 80 KT southwesterly
flow at 850 MB) any convection could also easily mix down some of
these stronger wind to the surface, so this potential will have to
be monitored over the next couple hours. Otherwise, the
precipitation threat should be quickly waning from west to east
by early evening.

After the winds ease this evening, the weather should become quiet
for a period into Wednesday, before the next weather system
arrives late in the day with more chances for precipitation.
Southerly winds should start the day. However, another cold
frontal trough is expected to sag southward into northern Illinois
later in the day. Temperatures should be warm enough during the
day for any showers that develop to remain liquid. However, this
may change as we head into Wednesday evening and some colder air
slips south over the area with the front. As a result, this may
result in a transition to some freezing precip Wednesday evening.

KJB

&&

.LONG TERM...
342 PM CST

Wednesday night through Tuesday...

As a secondary trough of low pressure drops southeast across the
area Wednesday evening... limited moisture will be compensated for
somewhat by a sharp upper level shortwave working to squeeze out
what is available effectively. As surface boundary sinks south...
shallow arctic air begins to undercut warm layer aloft which will
work to change rain to a period of freezing rain. Poor consistencybetween
models makes the duration of any freezing rain tough to pin down
at this time... but this event will be monitored closely as at
least a minor accumulation of ice is possible... especially north
of a Mendota to Aurora to Highland Park line.

As cold layer aloft deepens the moisture layer becomes more
shallow possibly setting up a period of freezing drizzle or mixed
very light freezing rain/sleet before precip ends all together
Thursday morning. High pressure takes a firmer hold on the area
later Thursday lasting through Friday. With arctic air returning
expect little rise in temps Thursday daytime especially
northwest... with lows into the single digits across north
central IL with teens city and south Friday morning. Temperatures
moderate somewhat Saturday ahead of the next upper level
shortwave.

Weak warm air advection/isentropic lift ahead of this upper
shortwave brings what now appears to be a a quick period of light
mixed precipitation on Saturday... with precip staying all snow
along and north of I-88. After a brief break Saturday night... the
area should see yet another round of mix precipitation Sunday into
Monday. Expect this event to start out as snow but then transition
to mixed and eventually rain as warmer air works north. Details on
this event will also continue to be refined over the coming days.
All in all a very active period weather wise lasting into early
next week.

Ed F

&&

.AVIATION...
For the 18Z TAFs...

The main concern is the winds today, with periods of damaging
winds likely this afternoon through early evening.

Southerly winds have already been gusting up around 45 KT at MDW
and DVN. These strong winds will continue this afternoon. A wind
shift is likely very late this afternoon as a cold front shifts
over the area. Expect west winds potentially gusting up to 45 to
50 KT with this frontal passage. Wind speeds will then quickly
abate this evening.

KJB

&&

.MARINE...
248 PM CST

Deep low pressure over Eastern Upper Michigan will lift northeast
to James Bay by Wednesday Morning... allowing the pressure
gradient over the lake to relax significantly overnight into early
Wednesday. Will continue storm warning until 04z over the south
half of the lake... with gale conditions continuing through much
of the overnight beyond that. Winds will diminish Wednesday
morning with the low moving away and a secondary trough of low
pressure moving southeast across the lake Wednesday afternoon and
evening.

As the secondary trough sinks south Thursday... another cold
front pushes southeast across the lake Thursday night. Behind
this front... a ridge of high pressure will build across the lake
Friday and persist through the weekend... bringing a period of
lighter wind conditions.

Ed F

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...High Wind Warning...ILZ005-ILZ006-ILZ012-ILZ013-ILZ014-ILZ020-
     ILZ021-ILZ022-ILZ023-ILZ033 UNTIL 10 PM Tuesday.

     Wind Advisory...ILZ003-ILZ004-ILZ008-ILZ010-ILZ011-ILZ019-ILZ032-
     ILZ039 UNTIL 10 PM Tuesday.

IN...High Wind Warning...INZ001-INZ002-INZ010-INZ011-INZ019 UNTIL 10
     PM Tuesday.

LM...Storm Warning...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-LMZ745-LMZ777-
     LMZ779 UNTIL 10 PM Tuesday.

     Gale Warning...LMZ777-LMZ779...10 PM Tuesday TO 3 AM Wednesday.

&&

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Hazardous weather outlook, Jan 10, 4:26 PM CST, 1 hour 19 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
426 PM CST TUE JAN 10 2017

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
112230-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
426 PM CST TUE JAN 10 2017 /526 PM EST TUE JAN 10 2017/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

 ELEVATED HIGH WIND RISK.

DISCUSSION:

WINDS WILL GUST AS HIGH AS 55 TO 60 MPH THIS EVENING... WITH A FEW
ISOLATED GUSTS AS HIGH AS 65 MPH. WINDS WILL BEGIN TO DIMINISH
AFTER 8 PM.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

WEDNESDAY...
  ELEVATED ICE ACCUMULATION RISK.
THURSDAY...
  ELEVATED EXCESSIVE COLD RISK.
  ELEVATED ICE ACCUMULATION RISK.
FRIDAY...
  ELEVATED EXCESSIVE COLD RISK.
  LIMITED ICE ACCUMULATION RISK.
SATURDAY THROUGH MONDAY...
  LIMITED ICE ACCUMULATION RISK.

DISCUSSION:

MULTIPLE PERIODS OF MIXED PRECIPITATION ARE EXPECTED WEDNESDAY
THROUGH MONDAY. SOME AREAS...ESPECIALLY ALONG AND NORTH OF A
MENDOTA TO AURORA TO HIGHLAND PARK LINE MAY SEE AN ICE
ACCUMULATIONUP TO A TENTH OF AN INCH WEDNESDAY NIGHT INTO EARLY
THURSDAY. ADDITIONAL PERIODS OF MIXED PRECIPITATION ARE EXPECTED
SATURDAY... AND AGAIN SUNDAY INTO MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH WEDNESDAY.

&&

LMZ740>745-112230-
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
426 PM CST TUE JAN 10 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...TONIGHT.

HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE EXPECTED.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

  HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-112230-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
426 PM CST TUE JAN 10 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...STORM FORCE WINDS WILL CONTINUE SOUTH HALF THROUGH 10
PM TONIGHT. GALE FORCE WINDS WILL CONTINUE OVERNIGHT TIL 3 AM.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

&&

ED F

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
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In the hours before

Local storm report, Jan 10, 3:00 PM CST, 2 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CST TUE JAN 10 2017

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

0255 PM     NON-TSTM WND DMG FAIRBURY                40.75N 88.51W
01/10/2017                   LIVINGSTON         IL   PUBLIC

            SEMI TURNED OVER.

&&

RODRIGUEZ

Local storm report, Jan 10, 3:21 PM CST, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
321 PM CST TUE JAN 10 2017

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

0318 PM     TSTM WND GST     YORKVILLE               41.64N 88.45W
01/10/2017  M65 MPH          KENDALL            IL   TRAINED SPOTTER

            RECORDED BY PERSONAL WEATHER STATION ANEMOMETER.

&&

RC

Local storm report, Jan 10, 3:22 PM CST, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
322 PM CST TUE JAN 10 2017

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

0318 PM     NON-TSTM WND GST YORKVILLE               41.64N 88.45W
01/10/2017  E65.00 MPH       KENDALL            IL   TRAINED SPOTTER

            RECORDED BY PERSONAL WEATHER STATION ANEMOMETER.

&&

RC

Local storm report, Jan 10, 4:53 PM CST, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
453 PM CST TUE JAN 10 2017

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

0435 PM     NON-TSTM WND GST PERU                    41.34N 89.13W
01/10/2017  M58 MPH          LA SALLE           IL   AWOS

            RECORDED AT ILLINOIS VALLEY REGIONAL AIRPORT. SUSTAINED
            WIND TO 44 MPH.

&&

RC

Local storm report, Jan 10, 4:56 PM CST, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
456 PM CST TUE JAN 10 2017

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

0415 PM     NON-TSTM WND GST MORRIS                  41.37N 88.43W
01/10/2017  M55 MPH          GRUNDY             IL   AWOS

            RECORDED AT MORRIS MUNICIPAL AIRPORT. SUSTAINED WIND TO
            45 MPH.

&&

RC

Local storm report, Jan 10, 5:37 PM CST, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
537 PM CST TUE JAN 10 2017

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

0314 PM     NON-TSTM WND GST 2 N SHOREWOOD           41.55N 88.20W
01/10/2017  M65 MPH          WILL               IL   MESONET

0255 PM     NON-TSTM WND GST LANSING                 41.57N 87.55W
01/10/2017  M56 MPH          COOK               IL   AWOS

0317 PM     NON-TSTM WND GST OHARE AIRPORT           41.98N 87.90W
01/10/2017  M56 MPH          COOK               IL   AWOS

0400 PM     NON-TSTM WND GST 1 SSW OTTAWA            41.34N 88.85W
01/10/2017  M60 MPH          LA SALLE           IL   MESONET

1124 AM     NON-TSTM WND GST 4 NE CHICAGO            41.92N 87.57W
01/10/2017  M66 MPH          LMZ741             IL   C-MAN STATION

            57.5 KT GUST AT THE HARRISON-DEVER GRIB. ANEMOMETER
            HEIGHT IS 85 FEET.

0330 PM     NON-TSTM WND GST 3 NNE TOWN OF PINES     41.73N 86.93W
01/10/2017  M61 MPH          LMZ745             IN   C-MAN STATION

            52.7 KT GUST AT MICHIGAN CITY C-MAN STATION. ANEMOMETER
            HEIGHT IS 70 FEET ABOVE LAKE LEVEL.

0237 PM     NON-TSTM WND GST 1 W CARBON HILL         41.30N 88.32W
01/10/2017  M66 MPH          GRUNDY             IL   MESONET

&&

RC

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 high wind. Local standard time, as filed.

High Wind, Lake

When: January 10, 5:45 PM CST
Where: Lake forecast zone
Measured: 50 kt (58 mph) measured gust
Reported by: AWOS
Coordinates: 41.472, -87.376 (the zone’s center; the record gives no point)

High Wind, Porter

When: January 10, 6:00 PM CST
Where: Porter forecast zone
Measured: 50 kt (58 mph) measured gust
Reported by: ASOS
Coordinates: 41.509, -87.073 (the zone’s center; the record gives no point)

What these are

High Wind: Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Indiana in 2017 Every state in 2017 This day in weather history Warnings in Indiana, January 2017

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 666805, 666806.