Winter Storm Watch 4, NWS Cleveland, OH

270 
WWUS41 KCLE 101540
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
1040 AM EST Sun Dec 10 2017

...Lake effect snow is expected tonight, but a more significant 
snowfall is expected Monday night through Wednesday afternoon...

.Lake-effect snow will be tapering off through early afternoon
across the snowbelt. Another band of lake- effect snow will 
develop over the lake later today and eventually move back on 
shore tonight across the snowbelt. Moderate to heavy snow at 
times is expected with this band resulting in additional 
accumulating snow. 

An arctic front is forecast to move south across the area Monday
night bringing a broader area of snow to the snowbelt. Moderate to
heavy lake effect snow is possible at times, Monday night through
Wednesday. 

PAZ002-102345-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Southern Erie-
Including the city of Edinboro
1040 AM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Lake effect snow occurring. Heavy lake effect snow
  possible. Plan on slippery road conditions. Snow accumulations
  of 2 to 5 inches are expected through tonight. Additional snow
  accumulations of 9 to 12 inches are possible from Monday night
  through Wednesday afternoon. Travel may be difficult. 

* WHERE...Southern Erie county.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Monday. 
  For the Winter Storm Watch, from Monday evening through 
  Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

PAZ001-102345-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
Northern Erie-
Including the city of Erie
1040 AM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...

* WHAT...Lake effect snow occurring. Plan on slippery road
  conditions. Additional snow accumulations of 3 to 5 inches are
  expected.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Monday. There will be a break in the snow
  this afternoon before a band moves ashore this evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

$$

OHZ013-014-PAZ003-102345-
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Geauga-Ashtabula Inland-Crawford-
Including the cities of Chardon, Jefferson, and Meadville
1040 AM EST Sun Dec 10 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Heavy lake effect snow possible. Travel may be very
  difficult. Total snow accumulations of 9 to 12 inches is 
  possible.

* WHERE...In Pennsylvania, Crawford county. In Ohio, Geauga and 
  Ashtabula Inland counties.

* WHEN...From Monday evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

882 
WWUS41 KCLE 102040
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
340 PM EST Sun Dec 10 2017

...Lake effect snow is expected tonight, but a more significant
snowfall is expected Monday night through Wednesday afternoon...

.Lake-effect snow bands will push ashore with the passage of a
trough tonight. Moderate to heavy snow at times is expected with 
this band resulting in light snow accumulations.

An arctic front is forecast to move south across the area Monday
night bringing a broader area of snow to the snowbelt. Moderate
to heavy lake effect snow is possible at times, Monday night
through Wednesday.

PAZ002-110500-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Southern Erie-
Including the city of Edinboro
340 PM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Lake effect snow occurring. Heavy lake effect snow
  possible. Plan on slippery road conditions. Additional snow
  accumulations of 2 to locally 5 inches are expected tonight.
  Additional snow accumulations of 9 to 12 inches are possible
  from Monday night through Wednesday afternoon. Travel may be
  difficult.

* WHERE...Southern Erie county.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Monday. 
  For the Winter Storm Watch, from Monday evening through 
  Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

PAZ001-110500-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
Northern Erie-
Including the city of Erie
340 PM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...

* WHAT...Lake effect snow occurring. Plan on slippery road
  conditions. Additional snow accumulations of 3 to locally 5 
  inches are expected.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

$$

OHZ013-014-PAZ003-110500-
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Geauga-Ashtabula Inland-Crawford-
Including the cities of Chardon, Jefferson, and Meadville
340 PM EST Sun Dec 10 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Heavy lake effect snow possible. Travel may be difficult.
  Total snow accumulations of greater than 8 inches possible.
  Accumulations up to a foot possible across inland 
  Pennsylvania..

* WHERE...In Pennsylvania, Crawford county. In Ohio, Geauga and 
  Ashtabula Inland counties.

* WHEN...From Monday evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

507 
WWUS41 KCLE 110310
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
1010 PM EST Sun Dec 10 2017

...Lake effect snow is expected overnight, but a more significant
snowfall is expected Monday night through Wednesday afternoon...

.Lake effect snow bands will push onshore with the passage of a 
trough tonight. Moderate to heavy snow is expected with these 
bands resulting in light snow accumulations.

An arctic front is forecast to move south across the area Monday
night bringing a broader area of snow to the snowbelt. Moderate
to heavy lake effect snow is possible at times, Monday night
through Wednesday.

PAZ002-111115-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Southern Erie-
Including the city of Edinboro
1010 PM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Lake effect snow occurring. Heavy lake effect snow
  possible. Plan on slippery road conditions. Additional snow
  accumulations of 2 to locally 5 inches are expected overnight. 
  Additional snow accumulations of 9 to 12 inches are possible 
  from Monday night through Wednesday afternoon. Travel may be 
  difficult.

* WHERE...Southern Erie county.

* WHEN...For the Winter Weather Advisory, until 7 AM EST Monday. 
  For the Winter Storm Watch, from Monday evening through 
  Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

PAZ001-111115-
/O.CON.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
Northern Erie-
Including the city of Erie
1010 PM EST Sun Dec 10 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
MONDAY...

* WHAT...Lake effect snow occurring. Plan on slippery road 
  conditions. Additional snow accumulations of 3 to locally 5 
  inches are expected.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Monday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

$$

OHZ013-014-PAZ003-111115-
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Geauga-Ashtabula Inland-Crawford-
Including the cities of Chardon, Jefferson, and Meadville
1010 PM EST Sun Dec 10 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH WEDNESDAY AFTERNOON...

* WHAT...Heavy lake effect snow possible. Travel may be 
  difficult. Total snow accumulations of greater than 8 inches 
  possible. Accumulations up to a foot possible across inland 
  Pennsylvania..

* WHERE...In Pennsylvania, Crawford county. In Ohio, Geauga and 
  Ashtabula Inland counties.

* WHEN...From Monday evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

844 
WWUS41 KCLE 110850
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
350 AM EST Mon Dec 11 2017

.A clipper system will track across the lower lakes tonight 
dragging an arctic front across the forecast area. Lake effect 
snow will develop Tuesday and continue through Wednesday 
afternoon. 

PAZ002-111700-
/O.CAN.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Southern Erie-
Including the city of Edinboro
350 AM EST Mon Dec 11 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY AFTERNOON...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Heavy lake effect snow possible. Travel will be very 
  difficult to impossible. Total snow accumulations of 16 to 20 
  inches are possible by Wednesday afternoon.

* WHERE...Southern Erie county.

* WHEN...From this evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

PAZ001-111000-
/O.CAN.KCLE.WW.Y.0010.000000T0000Z-171211T1200Z/
Northern Erie-
Including the city of Erie
350 AM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Some light snow is still possible early this morning, but the
heaviest snow has ended.

$$

OHZ013-014-PAZ003-111700-
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Geauga-Ashtabula Inland-Crawford-
Including the cities of Chardon, Jefferson, and Meadville
350 AM EST Mon Dec 11 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy lake effect snow possible. Travel will be very 
  difficult to impossible. Total snow accumulations of 11 to 15 
  inches, with localized amounts up to 18 inches, are possible.

* WHERE...In Pennsylvania, Crawford county. In Ohio, Geauga and 
  Ashtabula Inland counties.

* WHEN...From this evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

722 
WWUS41 KCLE 111457
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
957 AM EST Mon Dec 11 2017

.A clipper system will track across the lower lakes tonight
dragging an arctic front across the forecast area and bring light
snow to the entire area. Lake effect snow will develop Tuesday 
and continue through Wednesday afternoon.

OHZ013-014-PAZ002-003-120000-
/O.CON.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
Geauga-Ashtabula Inland-Southern Erie-Crawford-
Including the cities of Chardon, Jefferson, Edinboro, 
and Meadville
957 AM EST Mon Dec 11 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM 7 PM EST THIS
EVENING THROUGH WEDNESDAY AFTERNOON...

* WHAT...Heavy lake effect snow possible. Travel will be very
  difficult to impossible. Total snow accumulations of 8 to 15
  inches, with localized amounts up to 18 inches, are possible.
  The higher amounts will be most likely across northwest
  Pennsylvania.

* WHERE...In Pennsylvania, Southern Erie and Crawford counties. 
  In Ohio, Geauga and Ashtabula Inland counties.

* WHEN...From 7 PM EST this evening through Wednesday afternoon.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch for heavy lake effect snow means there is a
potential for a large amount of snow in only a few hours.
Visibilities and depth of snow can vary greatly, impacting travel
significantly. Continue to monitor the latest forecasts.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

814 
WWUS41 KCLE 111842
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
142 PM EST Mon Dec 11 2017

...Widespread snow tonight followed by heavy lake effect snow 
Tuesday and Wednesday...

.A clipper system will track across the lower lakes tonight accompanied
by light snow. Lake effect snow will develop Tuesday and continue
through Wednesday evening.

Snow will pick up in intensity before the morning rush hour
Tuesday, continuing through the morning. There may be a relative 
lull in intensity Tuesday early afternoon before the lake effect 
snow organizes for Tuesday late afternoon through Wednesday. 
Heavy bursts of snow will be possible within well-developed lake 
effect snow bands.

The highest snowfall accumulations can be expected across the
higher terrain of northwest Pennsylvania and northeast Ohio. 
Locations under the winter weather advisory will still receive 
bursts of heavy snow. This may lead to the need for a lake effect 
snow warning. 

Winds behind the clipper will shift to the northwest with gusts to 
30 mph on Tuesday. This will develop lake effect snow bands that 
reach well inland. The winds will also lead to areas of blowing 
and drifting snow. 

Temperatures will fall throughout the day Tuesday reaching the 
teens by late afternoon and evening. Wind chills will be in the 
single digits.


OHZ013-014-120245-
/O.UPG.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
/O.NEW.KCLE.LE.W.0006.171212T0000Z-171214T0500Z/
Geauga-Ashtabula Inland-
Including the cities of Chardon and Jefferson
142 PM EST Mon Dec 11 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 7 PM THIS EVENING TO
MIDNIGHT EST WEDNESDAY NIGHT...

* WHAT...Heavy lake effect snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 8 to 11 inches are
  expected, with localized amounts up to 13 inches possible.

* WHERE...Geauga and Ashtabula Inland counties.

* WHEN...From 7 PM this evening to midnight EST Wednesday night.

* ADDITIONAL DETAILS...Northwest winds will gust to 30 mph at
  times on Tuesday causing blowing and drifting of snow. Be 
  prepared for significant reductions to visibility in snow bands.
  Wind chills will fall to near zero Tuesday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lake Effect Snow Warning means significant amounts of lake
effect snow are forecast that will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food,
and water in your vehicle in case of an emergency. The latest
road conditions can be obtained from the Department of
Transportation web site.

$$

PAZ002-003-120245-
/O.UPG.KCLE.WS.A.0004.171212T0000Z-171213T2100Z/
/O.NEW.KCLE.LE.W.0006.171212T0000Z-171214T0500Z/
Southern Erie-Crawford-
Including the cities of Edinboro and Meadville
142 PM EST Mon Dec 11 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 7 PM THIS EVENING TO
MIDNIGHT EST WEDNESDAY NIGHT...

* WHAT...Heavy lake effect snow expected. Travel will be very
  difficult to impossible. Total snow accumulations of 12 to 16
  inches are expected, with localized amounts up to 20 inches
  possible.

* WHERE...Southern Erie and Crawford counties.

* WHEN...From 7 PM this evening to midnight EST Wednesday night.

* ADDITIONAL DETAILS...Northwest winds gusting as high as 30 mph 
  will cause areas of blowing and drifting snow. Be prepared for 
  near white out conditions in snow bands. Wind chills will fall 
  to near zero Tuesday night.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lake Effect Snow Warning means significant amounts of lake
effect snow are forecast that will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food,
and water in your vehicle in case of an emergency. The latest
road conditions can be obtained from the Department of
Transportation web site.

$$

OHZ011-012-023-089-PAZ001-120245-
/O.NEW.KCLE.WW.Y.0011.171212T0000Z-171214T0500Z/
Cuyahoga-Lake-Trumbull-Ashtabula Lakeshore-Northern Erie-
Including the cities of Cleveland, Mentor, Warren, Ashtabula, 
and Erie
142 PM EST Mon Dec 11 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
MIDNIGHT EST WEDNESDAY NIGHT...

* WHAT...Lake effect snow expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches are
  expected, with localized amounts up to 12 inches possible.

* WHERE...In Pennsylvania, Northern Erie county. In Ohio, 
  Cuyahoga, Lake, Trumbull and Ashtabula Lakeshore counties.

* WHEN...From 7 PM this evening to midnight EST Wednesday night.

* ADDITIONAL DETAILS...Northwest winds will gust to 30 mph at
  times on Tuesday. Wind chills will fall to near zero Tuesday 
  night. Be prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions can be
obtained from the Department of Transportation web site.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

Area Forecast Discussion
National Weather Service Cleveland OH
359 AM EST Sun Dec 10 2017

.SYNOPSIS...
An upper level trough will remain across the eastern United States
for much of the week. At the surface, a cold front will move
east of the area today. A secondary trough will slide south
across the Eastern Great Lakes tonight, followed by an area of
low pressure crossing the Great Lakes region Monday night into
Tuesday.

&&

.NEAR TERM /THROUGH MONDAY/...
Lake effect snow has begun across the Snowbelt in a more or less
disorganized fashion. Some embedded bands of heavier snow can
be seen on radar across portions of Lake, Geauga, and Ashtabula
Counties. Look for generally 1 to 3 inches of additional snow
across northeast Ohio through the morning hours. Snow will fill
in over the next couple hours across northwest PA and similar
totals can be expected through midday today.

As we head into this afternoon the flow will become southwest
and a lake-effect snow band will organize, but is expected to
remain largely just off shore initially. However, if there is
even a 10 or 20 degree difference in the forecast wind direction
portions of northeast Erie County PA could be affected by this
band this afternoon. This is something we will have to watch
closely.

This band will crash back on shore tonight as an upper level
short-wave and surface trough pass by and veers winds back
around to the west. This is expected to produce generally
another 2 to 4 inches across Erie County, but it will all
depend on just how quickly this band moves inland. This band may
reach as far west as the Cleveland area with amounts of around 1
to 3 inches possible in the Primary Snowbelt in northeast Ohio. Locally
higher totals will be possible in favored upslope areas, especially
if the bands moves on the slower side. The Winter Weather
Advisory continues through tonight for Erie County PA.

The lake-effect snow will taper off Monday as a weak ridge of
high pressure at the surface nudges north into the area and
backs winds to the southwest and eventually south. Temperatures
will rise to near 30 degrees this afternoon, falling back into
the lower and middle 20s tonight. Temperatures Monday afternoon
will be slightly warmer than what we see today.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/...
The short term begins Monday night with both the NAM and GFS showing
low pressure moving through the central lakes reaching sern
Ontario/Lake Ontario region by 12z Tuesday. This system will spread
a general synoptic snow across the area with the most (~ 2-4 inches)
falling north/northeast. As the low moves east of the area Tuesday
it will drag a Canadian/Arctic cold front through (late Monday night
and early Tuesday). This cold northwest flow will begin an
extended period of lake effect snow that will last into
Wednesday. BUFKIT shows extreme instability to the lake, good
dendrite growth, deep lift and ample moisture for lake effect
snow. There are negatives, however. Much of the time winds will
be from around 300 degrees which is a short fetch across the
lake. Also boundary layer wind speeds will be around 40kts so
latency will be compromised. At this time would expect a
multiband setup with help needed from shoreline convergence and
orographic lift. Tuesday and Tuesday night have a combined 6 to
8 inches in grids. Wednesday another 1 to 3 mostly in the
morning as dry air will be moving in. All told expect up
to/around a foot inland nwrn PA and 6 to 10 northern Geauga.

Will issue a winter storm watch for lake effect snow from Monday
night through Wednesday afternoon for Geauga, inland Ashtabula,
inland Erie, and Crawford counties. Given the onshore flow direction
expected believe the heaviest amounts will be away from the
lakeshore unlike the previous event.

&&

.LONG TERM /THURSDAY THROUGH SATURDAY/...
Thursday into Friday models have another clipper system dropping
down in the northwest flow across the western to the central lakes.
Models are a bit different with the ECMWF keeping much of the precip
north of the region while the GFS brings it across the area. For now
seems reasonable to have clouds and a chance of snow showers given
the pattern. Saturday models back in agreement showing low pressure
moving east MN/WI region with large scale warm advection into the OH
Valley. For now models are mostly dry so will have a dry day.

&&

.AVIATION /06Z Sunday THROUGH Thursday/...
Lake effect snow is developing and will impact sites mainly east
of KCLE. Expect IFR conditions in these snow bands. Some low
end VFR is possible across northwest Ohio overnight, otherwise
widespread MVFR is expected. A trend of lifting ceilings will
occur across all inland sites later today. However, lake effect
snow will be close to the lakeshore from KCLE to KERI with KERI
being impacted through the day. A band of potentially heavy lake
effect snow will move back onshore tonight impacting KCLE and
KERI.

OUTLOOK...Non-VFR likely Monday night, and Tuesday night area
wide. Non-VFR continuing across northeast OH/northwest PA for
most of the time through Wednesday night.

&&

.MARINE...
Will continue small craft advisory as is. Expect winds to increase
this afternoon to 15 to 25 knots as low pressure moves east through
the central lakes. Winds will slowly diminish overnight turning more
northwest. Winds and waves will increase again late Monday night in
the wake of deepening low pressure. Tuesday winds will increase
from the northwest to 30 knots and diminish slowly Tuesday
night and Wednesday and likely requiring a small craft advisory
from late Monday night through Wednesday night.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...Winter Storm Watch from Monday evening through Wednesday
     afternoon for OHZ013-014.
PA...Winter Storm Watch from Monday evening through Wednesday
     afternoon for PAZ002-003.
     Winter Weather Advisory until 7 AM EST Monday for PAZ001-002.
MARINE...Small Craft Advisory until 4 AM EST Monday for LEZ145>149.

&&

SYNOPSIS...Mottice
NEAR TERM...Mottice
SHORT TERM...TK
LONG TERM...TK
AVIATION...Mottice
MARINE...TK

Hazardous Weather Outlook
National Weather Service Cleveland OH
416 PM EST Sat Dec 9 2017

PAZ001-002-102130-
Northern Erie-Southern Erie-
416 PM EST Sat Dec 9 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

This Hazardous Weather Outlook is for northwest Pennsylvania.

.DAY ONE...Tonight.

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

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

   Winter Weather Advisory.

Additional lake enhanced snow is possible Monday night through
Wednesday. Please stay tuned to later forecasts for possible
accumulations.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ011>014-089-PAZ003-102130-
Cuyahoga-Lake-Geauga-Ashtabula Inland-Ashtabula Lakeshore-Crawford-
416 PM EST Sat Dec 9 2017

This Hazardous Weather Outlook is for northeast Ohio and northwest
Pennsylvania.

.DAY ONE...Tonight.

Minor snow accumulations are possible across the snowbelt overnight.
Accumulations will range from less than an inch to locally up to 2 or
3 inches in the favored upslope areas.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Additional lake enhanced snow is possible Monday night through
Wednesday. Please stay tuned to later forecasts for possible
accumulations.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ003-006>010-017>023-027>033-036>038-047-102130-
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Hancock-Seneca-Huron-Medina-
Summit-Portage-Trumbull-Wyandot-Crawford-Richland-Ashland-Wayne-
Stark-Mahoning-Marion-Morrow-Holmes-Knox-
416 PM EST Sat Dec 9 2017

This Hazardous Weather Outlook is for north central Ohio, northeast
Ohio and northwest Ohio.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LEZ061-142>149-162>169-102130-
Lake Erie open waters from Ripley to Buffalo NY-
Lake Erie nearshore waters from Maumee Bay to Reno Beach OH-
Lake Erie nearshore waters from Reno Beach to The Islands OH-
Lake Erie nearshore waters from The Islands to Vermilion OH-
Lake Erie nearshore waters from Vermilion to Avon Point OH-
Lake Erie nearshore waters from Avon Point to Willowick OH-
Lake Erie nearshore waters from Willowick to Geneva-on-the Lake OH-
Lake Erie nearshore waters from Geneva-on-the-Lake to Conneaut OH-
Lake Erie nearshore waters from Conneaut OH to Ripley NY-
Lake Erie open waters from Maumee Bay to Reno Beach OH-
Lake Erie open waters from Reno Beach to The Islands OH-
Lake Erie open waters from The Islands to Vermilion OH-
Lake Erie open waters from Vermilion to Avon Point OH-
Lake Erie open waters from Avon Point to Willowick OH-
Lake Erie open waters from Willowick to Geneva-on-the-Lake OH-
Lake Erie open waters from Geneva-on-the-Lake to Conneaut OH-
Lake Erie open waters from Conneaut OH to Ripley NY-
416 PM EST Sat Dec 9 2017

This Hazardous Weather Outlook is for Lake Erie.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Special Weather Statement
National Weather Service Cleveland OH
148 AM EST Sun Dec 10 2017

OHZ021>023-032-033-101100-
Summit-Portage-Trumbull-Stark-Mahoning-
Including the cities of Akron, Ravenna, Warren, Canton,
and Youngstown
148 AM EST Sun Dec 10 2017

At 145am radar showed light snow occurring from the Akron area to
the Youngstown Warren area early this morning. Reports from the
area also indicated patchy freezing drizzle was mixing in with
the snow at times. While most roads have been treated due to the
snow, any untreated roads, sidewalks and parking lots could
become slick with a glaze of ice. Motorists are reminded to use
caution driving through inland northeast Ohio overnight.

tk