Wind Advisory 3, NWS Detroit, MI

124 
WWUS73 KDTX 130206
NPWDTX

URGENT - WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
906 PM EST Tue Feb 12 2019

MIZ082-083-131015-
/O.EXT.KDTX.WI.Y.0003.000000T0000Z-190213T1700Z/
Lenawee-Monroe-
Including the cities of Adrian and Monroe
906 PM EST Tue Feb 12 2019

...WIND ADVISORY NOW IN EFFECT UNTIL NOON EST WEDNESDAY...

The Wind Advisory is now in effect until noon EST Wednesday. 

HAZARDOUS WEATHER...

 * Wind gusts around 40 to 45 mph are expected. 

IMPACTS...

 * Downed tree limbs and power lines are possible and may lead to
   isolated power outages. 

 * Hazardous driving for high profile vehicles.

 * Unsecured light outdoor objects will be blown around.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained wind speeds of at least
30 mph or gusts of 45 mph or more are expected. Winds this strong
can make driving difficult...especially for high profile
vehicles. Use extra caution.

&&

$$

SC

158 
WWUS73 KDTX 130733
NPWDTX

URGENT - WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
233 AM EST Wed Feb 13 2019

MIZ082-083-131700-
/O.CON.KDTX.WI.Y.0003.000000T0000Z-190213T1700Z/
Lenawee-Monroe-
Including the cities of Adrian and Monroe
233 AM EST Wed Feb 13 2019

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EST TODAY...

HAZARDOUS WEATHER...

 * Peak Wind gusts around 40 to 45 mph are expected through noon.

IMPACTS...

 * Downed tree limbs and power lines are possible and may lead 
   to isolated power outages. 

 * Hazardous driving conditions for high profile vehicles.

 * Unsecured light outdoor objects will be blown around.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained wind speeds of at least
30 mph or gusts of 45 mph or more are expected. Winds this strong
can make driving difficult...especially for high profile
vehicles. Use extra caution.

&&

$$

IRL

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
1137 AM EST Tue Feb 12 2019

.UPDATE...

Update forthcoming to bring headlines and a fresh set of zones in
closer alignment with expectations going foreward. Burst of strong
warm advection has nearly cleared the area by 11am LST this morning.
A general 3-5" of snow was observed in the warning, 2-4" accompanied
by mostly sleet and some fzra in the advisory, and around 0.3" of
ice accretion in the ice storm warning. The dry slot will overspread
the area for the remainder of the daylight hours limiting any
additional precip going forward, so the ice storm and winter storm
warnings have been cancelled.

Incoming well-mixed cold airmass tonight will bring a quick shot of
deep/strong convergence and dynamic support in the form of the
parent 400mb PV anomaly pivoting through the CWA 21-00z. A transient
burst of convective showers can be expected along the front with low
vsbys possible in its wake west of the glacial ridge where precip
will most likely be snow. To the east, including most of Metro
Detroit, rain is expected. Weak deformation will support additional
minor accums across the north tonight that wouldn't be headline-
worthy on their own merit, especially after such a prolonged break,
but the potential for blowing snow, wind nearing wind advisory
criteria in spots (tonight thru Wed), and typical lower-
predictability lake effect response are sufficient to simply
transition the WSW to an generic WW advisory. LES potential will be
greatest in the climatological corridor which is already captured in
the existing advisory (I-94 to I-69) and will be a focus of
attention for this aftn. Poorly defined/lower probability threat
near the Ohio border lends itself to just a wind headline at this
time.

All advisories are now scheduled to expire concurrently Wed
aftn as wind guts and any blowing snow begin to diminish. Final note
on the ice storm - additional power outage potential as strong winds
develop tonight will be conditional on the degree of melting that
occurs today as tempertaures rise well into the 30s in most spots.
Either complete melting of ice on power lines or even just enough
melting to allow ice to break free/fall off during wind would be
sufficient to limit impacts. The current expectation of light winds
until 00z or later and 32+F temps is therefore a rather fortuidous
outcome in terms of mitigating additional infrastructure damage.

&&

.PREV DISCUSSION...
Issued at 553 AM EST Tue Feb 12 2019

AVIATION...

A widespread wintry mix of precipitation will continue to impact the
southeast Michigan airspace today. Warmer air advancing northward at
the same time will bring a transition from accumulating snow to
freezing rain/sleet then rain throughout the day. This process
already yielding a period of freezing rain along the Detroit
corridor, with recent trends suggesting a subsequent shift at
PTK/FNT 14z-16z. This will lead to a significant amount of icing
through this corridor. MBS likely to hold as snow while
precipitation intensity remains high. All locations likely to
witness a drop in precipitation intensity, as temperatures lift
above freezing during the afternoon. This will translate into simply
pockets of light rain or drizzle in IFR conditions. Winds
strengthening from west-southwest in the wake of this storm system
late this evening. Gusts in excess of 30 knots likely. In addition,
favorable conditions will exist for snow shower development,
resulting in quick accumulation of snow and reduction in visibility.

For DTW...Ongoing freezing rain will persist through 16z, then
temperatures lift above freezing. Potential for a significant
accumulation of ice this morning. Attention tonight turns to strong
wind potential, with west-southwest gusts in excess of 30 knots
likely. In addition, high likelihood exists for higher intensity snow
showers carrying quick accumulation potential and rapid reduction in
visibility.

DTW THRESHOLD PROBABILITIES...

* High for ceiling 5000 ft or less through the period.

* High for ptype as freezing rain through 15z, then rain after 16z
  today. High for ptype as snow tonight.

* Medium for west-southwest winds to exceed crosswind thresholds
  tonight into early Wednesday.

PREV DISCUSSION...
Issued at 415 AM EST Tue Feb 12 2019

DISCUSSION...

WINTER STORM TO CONTINUE IMPACTING SOUTHEAST MICHIGAN THROUGH
TONIGHT WITH SNOW, SLEET, FREEZING RAIN, AND BLOWING SNOW...

NEAR TERM / TODAY THROUGH TONIGHT

As of 415 AM EST...Dynamic low pressure system continues to lift
northeast from the southern Plains early this morning with impressive
baroclinic leaf structure observed on water vapor imagery. Southeast
Michigan continues to reside within an increasingly favorable region
of synoptic lift, with broad upper- level diffluence in the exit
region of a 150 kt southern stream jet. Strong coupled ageostrophic
circulation coinciding with entrance region dynamics of the polar jet
located to the northeast continues to result in increasing low-level
baroclinicity and a tightening thermal gradient over the northern
Ohio Valley. Latest mesoanalysis reveals the 0 C 850 hPa isotherm at
the Michigan/Ohio/Indiana border, with a burgeoning warm nose of 1-3
C in the 950-850 hPa layer beginning to push northward into lower
Michigan. Strong moisture transport also continues northward across
the region courtesy of a 40-50 knot LLJ, with a favorable positioning
of the low-level moisture transport vectors into the region.
Isentropic analysis also reveals strong lift moving over the region,
with impressive cross-theta surfaces convergence in the 1000-700 hPa
layer with low condensation pressure deficits over southeast
Michigan.

The system as a whole continues to undergo phasing with a reservoir
of northern stream PV energy diving southeast from the northern
Plains. 500 hPa height analysis already reveals the sharpening upper
trough going negative tilt, with closed 850 hPa low just northeast
of the surface low center across northern Illinois. Further signal
that impressive dynamic response is underway is noted drying in the
system dry slot, which will have significant implications on winter
weather later this morning into the afternoon.

Strong Canadian high pressure (1040 hPa) centered over western
Quebec continues to funnel cooler near surface air into the region
with the overrunning precipitation shield lifting north over
southeast Michigan. Latest radar continues to show blossoming
returns, with activity at the onset falling as snow as the warm nose
remains lagged closer to the Ohio border. Regional observations
continue to support snow from the I-69 to I-94 corridors, with
freezing rain being reported south of I-94. Hi-res trends have been
slightly colder in the boundary layer north of I-94, but slightly
warmer closer to the Ohio border. The result has been freezing rain
since roughly 12am-1am for Lenawee and Monroe counties, with light
snow further north. The residual cold air near the surface will
allow for a transition to sleet/freezing rain between the I-94 and M-
59 corridors through 5am after a quick 1-2 inches of accumulating
snow. Light snow will also begin within the next 1-2 hours further
north into the Tri-Cities and Thumb regions.

Strongest low-level forcing and moisture convergence looks to result
in the peak of the event occurring in the 5am-10am period, which
will directly overlay the morning commute. As the warm nose pushes
further north, a transition to primarily freezing rain is expected
for remaining areas south of the I-96/696 corridor, with a greater
chance of sleet mixing in closer to the M-59 corridor and up to the
I-69 corridor. Precipitation rates look to peak 5am-9am, with
snowfall rates up to 1 inch per hour and ice accretion 0.05 inch to
0.10 inch per hour.

The Ice Storm Warning will continue for Lenawee and Monroe counties
until noon, with total ice accumulation approaching three tenths of
an inch. Across the Detroit metro, especially within the I-96/696 to
I-94 corridors, up to a quarter of an inch of ice will be possible.
Continue to closely monitor observations, but will hold off on
expanding Ice Storm Warning into Washtenaw and Wayne counties as
there still remains uncertainty with the degree to which sleet may
mix in and cut down on ice totals. Into the northern Detroit metro
and M-59 corridor, there will likely be a sharp gradient in ice
amounts depending on where the deeper colder air resides longest and
more in the way of sleet occurs. Still, one to two tenths of an inch
of ice accumulation will be possible between the M-59 and I-96/696
corridors. Further increasing sleet potential will be the
aforementioned enhanced precipitation rates which will act to
convectively cool the column against the warm nose.

Winter Storm Warnings will remain in effect north of the I-69
corridor in the Tri-Cities and Thumb, with Winter Weather Advisories
remaining in effect along and in between the I-69 and I-94
corridors. Latest HRRR and RAP suggest that the best theta-e
convergence remains focused south of the M-59 corridor, which will
threaten the snow potential in the Winter Storm Warning. Further
limiting higher snow totals will be the arrival of the dry slot
later this morning into the early afternoon. 2-4 inches will still
be possible into the early afternoon especially north of M-46, with
1-3 inches between M-46 and M-59, with less than an inch south of M-
59. Sleet and eventually freezing rain will affect northern areas
primarily after 10am, with up to a tenth of an inch of ice
accumulation north of M-59.

Significant travel impacts can be expected for the morning commute
resulting from the wintry mix and will lead to snow covered and
slick roadways. Another significant concern will be the potential
for power outages where significant icing occurs. East northeast
winds continue to gust 20-30 mph at times as a result of the
tightening pressure gradient between the Canadian high and the
deepening surface low. These winds will place extra stress on trees
and power lines, while also resulting in more efficient ice
accretion on these surfaces. In areas of falling snow, significant
reductions in visibility can be expected, with near whiteout
conditions at times.

It will take until around noon for temperatures to start warming
above freezing south of I-69, with high temperatures peaking in the
upper 30s to near 40. Aforementioned dry slot races into the region
15z-21z, and will result in decreasing coverage of activity for a
time. This trend will be short-lived however as the arrival of the
closing 500 hPa circulation and cold front renew coverage of
precipitation. Hi-res soundings support a brief transition to rain
south of I-69 as gusty showers quickly redevelop. Further north,
enough lingering low-level cold air will hold on to keep
precipitation in the form of snow and possible freezing rain.
Impressive dynamic instability resulting from compact vort max
coinciding with peak tilting of the upper trough may result in
graupel with the rain showers, and a rogue rumble of thunder can
also not be ruled out.

Attention then shifts to this evening into early tonight on the
backside of the surface low, which will deepen to sub 990 hPa as it
tracks northeast in the vicinity of Saginaw Bay. Strong cold air
advection amidst westerly flow will quickly envelope the region as
the Lake Michigan moisture plume releases numerous lake effect snow
showers as temperatures cool back into the lower 30s. Quickly
steepening low-level lapse rates and convective depths increasing to
10 kft will support the potential for snow squalls, or at the very
least, bursts of heavy snow showers. Pop of wind behind the cold
front, aided by weakening static stability and increasing momentum
profile post-dry slot will result in wind gusts exceeding 40 mph at
times, strongest across southern areas that see the greatest break
in precipitation later this morning. Near whiteout conditions will
be possible within the lake effect snow activity, with areas of
blowing snow likely across the rest of the region and will further
result in continued very hazardous travel conditions.

Additional snow accumulations of 1-3 inches will be possible for
most areas, with 2-4 inches possible in the Winter Storm Warning,
bringing total snow accumulations of 3-6 inches. 850 hpa temps crash
to around -15 C overnight resulting in low temperatures in well-
mixed environment falling into the 20s.

SHORT TERM / WEDNESDAY THROUGH THURSDAY NIGHT

Lake effect snow showers will gradually wane in coverage throughout
the day Wednesday as surface ridging builds in. Lingering tight
pressure gradient however will continue to result in areas of
blowing snow throughout the day with wind gusts 40-45 mph. High
temperatures will only reach into the mid/upper 20s with little
recovery from morning lows as the low-level thermal trough lingers
overhead. A brief respite from the active weather pattern will then
result in a period of dry weather Wednesday night through much of
the day Thursday. Brief zonal flow aloft will help temperatures
moderate slightly with highs in the 30s to near 40.

Northern stream PV energy will dive southeast coupled with weak
surface low pressure Thursday night into Friday, and will bring the
next round of widespread precipitation to the region. Latest model
trends are for this system to largely pass by to the northeast, with
the potential for light snow accumulations primarily north of M-59.

LONG TERM / FRIDAY THROUGH MONDAY

High pressure will build across the region for much of the weekend
resulting in dry and cool conditions. Forecast uncertainty then
increases to round out the weekend and into early next week as
shearing energy passes by to the south.

MARINE...

Gale Warnings remain in effect across the central Great Lakes today
through Wednesday as a strong low pressure system moves through the
region. High end easterly gales around 45 knots are likely,
especially across the north half of Lake Huron where the long
easterly fetch over open water enhances the wind pattern. A brief
gust to storm force remains possible there while colder air remains
over the remaining ice free water. The center of the system tracks
across southern Lower Michigan and central Lake Huron tonight which
allows a brief decrease in wind before increasing to northwest gales
again through Wednesday as the system exits into Ontario and Quebec.
The associated cold front moves through Lower Michigan during the
evening and brings the northwest gales first to Lake Erie and Lake
St Clair which have been upgraded to a Gale Warning tonight through
Wednesday. An extensive break up of ice is expected over the south
third of Lake Huron which may help frequent gale force gusts reach
outer Saginaw Bay and the southern nearshore waters down to Port
Huron. Conditions then improve quickly with the arrival of high
pressure Wednesday night into Thursday.

HYDROLOGY...

A wintry mix of snow, sleet and freezing rain will lift across
southeast Michigan this morning. This mix will transition to rain
from south to north through the day. Around a half inch of liquid
equivalent is expected Tuesday before changing back to snow Tuesday
night. Total liquid equivalent between Monday night and Tuesday
night will be around one inch. Significant within bank rises of area
rivers and streams will be possible, especially for areas toward the
Ohio border where more rain is likely versus wintry mix. Mild
temperatures and associated melting snow, combined with another
round of rain and snow, keeps flooding concerns in the forecast
through the weekend.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...Winter Weather Advisory until 3 PM EST Wednesday for MIZ047>049-
     053>055-060>063-068>070-075-076.

     Wind Advisory from 7 PM this evening to 3 PM EST Wednesday for
     MIZ082-083.

Lake Huron...Gale Warning until 4 PM EST Wednesday for LHZ361>363-421-441>443-
     462>464.

     Heavy Freezing Spray Warning until 10 PM EST this evening for
     LHZ361-362.

Lake St Clair...Gale Warning from 7 PM this evening to 4 PM EST Wednesday for
     LCZ460.

Michigan waters of Lake Erie...Gale Warning from 7 PM this evening to 4 PM EST Wednesday for
     LEZ444.

&&

UPDATE.......JVC
AVIATION.....MR
DISCUSSION...IRL
MARINE.......MR
HYDROLOGY....MR

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
426 AM EST Tue Feb 12 2019

MIZ047>049-053>055-131000-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-
426 AM EST Tue Feb 12 2019

This hazardous weather outlook is for areas along and north of M-46
in southeast Michigan.

.DAY ONE...Today and Tonight

A Winter Storm Warning is in effect through tonight. Please refer to
the latest winter weather headlines and forecasts for additional
details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A Winter Storm Warning remains in effect through Wednesday morning.
Please refer to the latest winter weather headlines and forecasts for
additional details.

Light snow will be possible Thursday night into Friday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight, however,
spotters are encouraged to send snowfall and ice reports to the
National Weather Service.

MIZ060>063-068>070-075-076-131000-
Shiawassee-Genesee-Lapeer-St. Clair-Livingston-Oakland-Macomb-
Washtenaw-Wayne-
426 AM EST Tue Feb 12 2019

This hazardous weather outlook is for portions of southeast
Michigan.

.DAY ONE...Today and Tonight

A Winter Weather Advisory is in effect through tonight. Please refer
to the latest winter weather headlines and forecasts for additional
details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A Winter Weather Advisory remains in effect through Wednesday
morning. Please refer to the latest winter weather headlines and
forecasts for additional details.

Light snow will be possible Thursday night into Friday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight, however,
spotters are encouraged to send snowfall and ice reports to the
National Weather Service.

MIZ082-083-131000-
Lenawee-Monroe-
426 AM EST Tue Feb 12 2019

This hazardous weather outlook is for Lenawee and Monroe counties in
southeast Michigan.

.DAY ONE...Today and Tonight

An Ice Storm Warning remains in effect through noon. Please refer to
the latest winter weather headlines and forecasts for additional
details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Wind gusts around 40 mph are possible Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight, however,
spotters are encouraged to send snowfall and ice reports to the
National Weather Service.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-131000-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM
off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
426 AM EST Tue Feb 12 2019

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Today and Tonight

Gale Warnings are in effect for all of Lake Huron excluding inner
Saginaw Bay. Please refer to the latest marine headlines and
forecasts for additional details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Gale Warnings will remain in effect for all of Lake Huron excluding
inner Saginaw Bay, and will also be in effect for Lake St. Clair and
western Lake Erie. Please refer to the latest marine headlines and
forecasts for additional details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

IRL

Special Weather Statement
National Weather Service Detroit/Pontiac MI
733 AM EST Tue Feb 12 2019

MIZ047>049-053>055-121500-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-
Including the cities of Midland, Bay City, Bad Axe, Saginaw,
Caro, and Sandusky
733 AM EST Tue Feb 12 2019

...WINTER STORM WARNING REMAINS IN EFFECT...

WEATHER...

 * Moderate to briefly heavy snow will continue through the late
   morning hours. Peak hourly snowfall rates of one half inch to
   one inch per hour will be possible during this time

 * Snow accumulations of 2 to 3 inches will be possible through
   the rest of the morning.

 * Easterly winds will gust 25 to 35 mph at times, and will lead
   to significant reductions in visibility due to falling snow.

IMPACTS...

 * Expect very hazardous travel conditions due to snow covered and
   icy and slick roadways. The morning commute will be severely
   impacted.

MIZ060>063-068>070-075-076-121500-
Shiawassee-Genesee-Lapeer-St. Clair-Livingston-Oakland-Macomb-
Washtenaw-Wayne-
Including the cities of Owosso, Flint, Lapeer, Port Huron,
Howell, Pontiac, Warren, Ann Arbor, and Detroit
733 AM EST Tue Feb 12 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT...

WEATHER...

 * Freezing rain and sleet will continue through the late morning
   period. This precipitation will be mixed with snow across the
   I-69 corridor.

 * Peak ice accretion rates of 0.05 inch per hour are expected.

 * Ice accumulation of up to a quarter of an inch will be
   possible between the I-94 and I-96/696 corridors. One to two
   tenths of an inch of ice accumulation will be possible between
   the M-59 and I-96/696 corridors. Less than a tenth of an inch
   of ice accumulation possible between the I-69 and M-59
   corridors.

 * Easterly winds will gust 25 to 30 mph at times.

IMPACTS...

 * Expect very hazardous travel conditions due to snow covered and icy
   and slick roadways. The morning commute will be severely
   impacted.

 * The combination of accreting ice and gusty winds will lead to
   extra stress on trees and power lines. Power outages will be
   possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 * Motorists are urged to use extreme caution and account for the
   hazardous driving conditions by slowing down and allowing extra
   time. If possible, travel is not recommended for the morning
   commute.

 * Prepare, plan and stay informed. Visit http://go.usa.gov/c7kkP

MIZ082-083-121500-
Lenawee-Monroe-
Including the cities of Adrian and Monroe
733 AM EST Tue Feb 12 2019

...ICE STORM WARNING REMAINS IN EFFECT...

WEATHER...

 * Freezing rain will continue through the morning hours, with
   peak ice accretion rates of around 0.5 inch per hour through
   10 AM.

 * Total ice accumulation of up to three tenths of an inch will be
   possible.

 * Easterly winds will gust 25 to 35 mph at times.

IMPACTS...

 * Expect treacherous travel conditions due to icy and slick
   roadways. The morning commute will be severely impacted.

 * The combination of accreting ice and gusty winds will lead to
   extra stress on trees and power lines. Scattered power outages
   will be possible.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 * Motorists are urged to use extreme caution and account for the
   hazardous driving conditions by slowing down and allowing extra
   time. If possible, travel is not recommended for the morning
   commute.

 * Prepare, plan and stay informed. Visit http://go.usa.gov/c7kkP

MR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
746 AM EST TUE FEB 12 2019

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

0645 AM     SNOW             YALE                    43.13N 82.80W
02/12/2019  M1.0 INCH        ST. CLAIR          MI   CO-OP OBSERVER

            3 HOUR SNOWFALL

0700 AM     SNOW             2 NW SAGINAW            43.45N 83.97W
02/12/2019  M3.0 INCH        SAGINAW            MI   TRAINED SPOTTER

            2.5 HOUR SNOWFALL

0700 AM     SNOW             2 E UTICA               42.63N 82.98W
02/12/2019  M1.2 INCH        MACOMB             MI   COCORAHS

            5 HOUR SNOWFALL

0700 AM     SNOW             FLINT                   43.02N 83.69W
02/12/2019  M2.5 INCH        GENESEE            MI   OFFICIAL NWS OBS

            5 HOUR SNOWFALL AT BISHOP INTERNATIONAL AIRPORT

0700 AM     SNOW             ANN ARBOR               42.28N 83.73W
02/12/2019  M1.0 INCH        WASHTENAW          MI   CO-OP OBSERVER

            6.5 HOUR SNOWFALL

0700 AM     SNOW             SSE SHELBY TOWNSHIP     42.67N 83.03W
02/12/2019  M1.5 INCH        MACOMB             MI   COCORAHS

            5 HOUR SNOWFALL

0700 AM     SNOW             2 NNE WIXOM             42.55N 83.52W
02/12/2019  M1.5 INCH        OAKLAND            MI   TRAINED SPOTTER

            5 HOUR SNOWFALL

0700 AM     SNOW             4 E WHITE LAKE          42.65N 83.43W
02/12/2019  M1.7 INCH        OAKLAND            MI   OFFICIAL NWS OBS

            5 HOUR SNOWFALL AT THE NWS WHITE LAKE OFFICE

0700 AM     SNOW             2 S BLOOMFIELD TOWNSHIP 42.55N 83.26W
02/12/2019  M2.1 INCH        OAKLAND            MI   COCORAHS

            5 HOUR SNOWFALL

&&

SP

Special Weather Statement
National Weather Service Detroit/Pontiac MI
837 AM EST Tue Feb 12 2019

MIZ082-083-121600-
Lenawee-Monroe-
Including the cities of Adrian and Monroe
837 AM EST Tue Feb 12 2019

...ICE STORM WARNING REMAINS IN EFFECT...

WEATHER...

 * Freezing rain will taper off this morning as temperatures hover
   around 32 degrees. Additional ice accumulation of less than
   a tenth of an inch expected.

 * Easterly winds gusting between 25 to 35 mph at times will also
   slowly decrease.

IMPACTS...

 * Treacherous travel conditions due to icy and slick roadways
   will persist this morning.

 * Numerous power outages have occurred and additional tree limbs
   and power lines may come down with the weight of the ice and
   gusty winds.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

 * Motorists are urged to use extreme caution and account for the
   hazardous driving conditions by slowing down and allowing extra
   time. If possible, travel is not recommended for the morning
   commute.

 * Prepare, plan and stay informed. Visit http://go.usa.gov/c7kkP

SF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
854 AM EST TUE FEB 12 2019

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

0700 AM     SNOW             4 N BURTON              43.05N 83.62W
02/12/2019  M2.4 INCH        GENESEE            MI   CO-OP OBSERVER

            4 HOUR SNOWFALL

0700 AM     SNOW             OWOSSO                  43.00N 84.18W
02/12/2019  M3.0 INCH        SHIAWASSEE         MI   CO-OP OBSERVER

            4 HOUR SNOWFALL

0700 AM     SNOW             DURAND                  42.91N 83.99W
02/12/2019  M2.2 INCH        SHIAWASSEE         MI   COCORAHS

            4 HOUR SNOWFALL

0700 AM     SNOW             LAKE ORION              42.78N 83.24W
02/12/2019  M1.6 INCH        OAKLAND            MI   COCORAHS

            4 HOUR SNOWFALL

0730 AM     SNOW             LEXINGTON               43.27N 82.53W
02/12/2019  M1.0 INCH        SANILAC            MI   CO-OP OBSERVER

            3.5 HOUR SNOWFALL

0730 AM     SNOW             OIL CITY                43.61N 84.59W
02/12/2019  M3.2 INCH        MIDLAND            MI   CO-OP OBSERVER

            3.5 HOUR SNOWFALL

0800 AM     SNOW             VASSAR                  43.37N 83.58W
02/12/2019  M2.5 INCH        TUSCOLA            MI   CO-OP OBSERVER

            3 HOUR SNOWFALL

0830 AM     ICE STORM        TEMPERANCE              41.77N 83.57W
02/12/2019                   MONROE             MI   NWS EMPLOYEE

            0.3 INCHES OF ICE ACCUMULATION WITH SCATTERED POWER
            OUTAGES ACROSS THE COUNTY

&&

SP

Special Weather Statement
National Weather Service Detroit/Pontiac MI
940 AM EST Tue Feb 12 2019

MIZ047>049-053>055-121700-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-
Including the cities of Midland, Bay City, Bad Axe, Saginaw,
Caro, and Sandusky
940 AM EST Tue Feb 12 2019

...Winter Storm Warning Remains In Effect...

Heavy snow and sleet will continue during the late morning hours
and taper off early this afternoon as temperatures rise into the
upper 20s. Additional accumulations of 1 to 2 inches expected late
this morning, with visibilities a quarter mile or less at times as
northeast winds gusts around 30 mph. Expect very hazardous travel
conditions due to low visibilities and snow covered roadways.

MIZ060>063-068>070-075-076-121700-
Shiawassee-Genesee-Lapeer-St. Clair-Livingston-Oakland-Macomb-
Washtenaw-Wayne-
Including the cities of Owosso, Flint, Lapeer, Port Huron,
Howell, Pontiac, Warren, Ann Arbor, and Detroit
940 AM EST Tue Feb 12 2019

...Winter Weather Advisory Remains In Effect...

Freezing rain and sleet will continue to taper off late this
morning. Additional ice accumulations less than one tenth of an
inch. Temperatures will continue to hover around 32 degrees south
of M-59, and rise to around 30 degrees north of M-59. Untreated roads
will remain snow covered and icy through the morning. Motorists are
urged to use caution and account for the hazardous driving
conditions by slowing down and allowing extra time.

SF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
952 AM EST TUE FEB 12 2019

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

0615 AM     SNOW             1 NE HOWELL             42.62N 83.92W
02/12/2019  M2.1 INCH        LIVINGSTON         MI   NWS EMPLOYEE

            4 HOUR SNOWFALL

0700 AM     SNOW             LAPEER                  43.05N 83.32W
02/12/2019  M2.3 INCH        LAPEER             MI   TRAINED SPOTTER

            5.5 HOUR SNOWFALL

0930 AM     SNOW             MARLETTE                43.33N 83.08W
02/12/2019  M4.1 INCH        SANILAC            MI   TRAINED SPOTTER

            5 HOUR SNOWFALL

&&

SP