Alert archive / Pennsylvania / Lake Effect Snow Warnings in 2019

Lake Effect Snow Warning 2, NWS Cleveland, OH

December 17, 2019Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this lake effect snow warning at Dec 17, 2019, 3:48 PM EST for Crawford County, Erie County, Pennsylvania. It took effect at Dec 18, 2019, 1:00 AM EST. It was in force for 26 hr. 20 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 17, 2019, 3:48 PM EST (20:48 UTC)
In effect from
Dec 18, 2019, 1:00 AM EST
Expired
Dec 19, 2019, 3:02 AM EST
In force
26 hr
Issued by
NWS Cleveland, OH

Counties Crawford County, PA, Erie County, PA

The radar

The Pittsburgh radar (KPBZ), 153 km from the middle of the area, began a volume at 20:49 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.

What was reported inside it

TimeReportWhereRemark
Dec 18, 5:54 AM ESTSNOW 34 Se Harborcreek, PA12-HOUR SNOWFALL.
Dec 18, 6:00 AM ESTSNOW 2.86 Sw Erie, PA24-HOUR SNOWFALL.
Dec 18, 6:29 AM ESTSNOW 42 Nw Edinboro, PA12-HOUR SNOWFALL. STORM TOTAL 6.5 INCHES
Dec 18, 7:00 AM ESTSNOW 33 Wnw Springboro, PA24-HOUR SNOWFALL.
Dec 18, 7:00 AM ESTSNOW 33 Wnw Springboro, PA24-HOUR SNOWFALL.
Dec 18, 7:18 AM ESTSNOW 2.52 Ese North East, PA12-HOUR SNOWFALL.
Dec 18, 7:53 AM ESTSNOW 2.83 Nw Elgin, PA12-HOUR SNOWFALL.
Dec 18, 8:00 AM ESTSNOW 3.91 Wsw Drakes Mills, PA12-HOUR SNOWFALL. STORM TOTAL 5.6 INCHES
Dec 18, 8:30 AM ESTSNOW 33 Se North East, PA12-HOUR SNOWFALL.
Dec 18, 8:30 AM ESTSNOW 4.11 N Canadohta Lake, PA24-HOUR SNOWFALL.
Dec 18, 9:13 AM ESTSNOW 2.51 Wnw North East, PA12-HOUR SNOWFALL.
Dec 18, 9:21 AM ESTSNOW 4.52 Ssw Corry, PA12-HOUR SNOWFALL.
Dec 18, 12:18 PM ESTSNOW 3.53 Ssw Wesleyville, PA12-HOUR SNOWFALL.
Dec 18, 6:05 PM ESTSNOW 3.21 Ne Meadville, PA12-HOUR SNOWFALL.
Dec 18, 7:19 PM ESTSNOW 5.52 E Edinboro, PA24-HOUR SNOWFALL.
Dec 18, 7:22 PM ESTSNOW 2.13 Nw Elgin, PA12-HOUR SNOWFALL.
Dec 18, 7:54 PM ESTSNOW 6.21 Nne Meadville, PA24-HOUR SNOWFALL.
Dec 18, 8:00 PM ESTSNOW 51 Wsw Drakes Mills, PA12-HOUR SNOWFALL. SWE: 0.36
Dec 18, 8:55 PM ESTSNOW 2.21 N Canadohta Lake, PA12-HOUR SNOWFALL.
Dec 18, 8:57 PM ESTSNOW 41 S Meadville, PA12-HOUR SNOWFALL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.8 hours before the alert went out and 162 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2019-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2019-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
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
680 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

490 
WWUS41 KCLE 172048
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
348 PM EST Tue Dec 17 2019

PAZ002-180500-
/O.UPG.KCLE.WS.A.0004.191218T0600Z-191219T1200Z/
/O.NEW.KCLE.LE.W.0002.191218T0600Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
348 PM EST Tue Dec 17 2019

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 1 AM WEDNESDAY TO 7 AM
EST THURSDAY...

* WHAT...Heavy lake effect snow expected. Total snow accumulations
  of 5 to 10 inches. Greatest snow totals are likely to occur
  south of I-90 and east of I-79. Winds gusting as high as 35 
  mph.

* WHERE...Southern Erie county.

* WHEN...From 1 AM Wednesday to 7 AM EST Thursday.

* IMPACTS...Travel will be very difficult. The hazardous
  conditions will likely impact the Wednesday morning and evening
  commutes.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times. The heaviest
  snowfall is likely Wednesday morning. Wind chills as cold as
  zero to five degrees below zero are expected late Wednesday
  evening and early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4199 7977 4212 7975 4221 7979 4212 7998 
        4209 8014 4205 8017 4201 8031 4186 8029 4184 7984 
        4188 7973 4194 7972 4198 7962 
TIME Y19M12D18T0600Z-Y19M12D19T0000Z
COORD...4199 7977 4200 7962 4201 7976 4219 7977 
        4208 8005 4202 8012 4195 8013 4187 7995 4185 7995 
        4184 7981 4186 7973 4198 7962 
TIME Y19M12D19T0000Z-Y19M12D19T1200Z

$$

OHZ012-014-089-180500-
/O.UPG.KCLE.WS.A.0004.191218T0600Z-191219T1200Z/
/O.NEW.KCLE.WW.Y.0034.191218T0600Z-191218T1800Z/
Lake-Ashtabula Inland-Ashtabula Lakeshore-
Including the cities of Mentor, Jefferson, and Ashtabula
348 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 1 PM EST
WEDNESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 3
  to 6 inches, but lesser totals of 1 to 3 inches are expected in
  the southern-half of Ashtabula County. Winds gusting as high as
  35 mph.

* WHERE...Lake, Ashtabula Inland and Ashtabula Lakeshore 
  counties.

* WHEN...From 1 AM to 1 PM EST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will likely impact the Wednesday morning commute.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times. The heaviest
  snowfall is likely Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ001-180500-
/O.UPG.KCLE.WS.A.0004.191218T0600Z-191219T1200Z/
/O.NEW.KCLE.WW.Y.0034.191218T0600Z-191219T1200Z/
Northern Erie-
Including the city of Erie
348 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM WEDNESDAY TO 7 AM
EST THURSDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 4
  to 8 inches. Winds gusting as high as 40 mph.

* WHERE...Northern Erie county.

* WHEN...From 1 AM Wednesday to 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will likely impact the Wednesday morning and evening 
  commutes.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times. The heaviest
  snowfall is likely Wednesday morning. Wind chills near zero
  degrees are expected late Wednesday evening and early Thursday
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

PAZ003-180500-
/O.NEW.KCLE.WW.Y.0034.191218T0600Z-191219T1200Z/
Crawford-
Including the city of Meadville
348 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM WEDNESDAY TO 7 AM
EST THURSDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 3
  to 6 inches, but lesser totals of 2 to 4 inches are expected in
  the southern-half of the county.

* WHERE...Crawford county.

* WHEN...From 1 AM Wednesday to 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will likely impact the Wednesday morning and evening 
  commutes.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times. The heaviest
  snowfall is likely Wednesday morning. Wind chills as cold as
  zero to five degrees below zero are expected late Wednesday
  evening and early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
7 follow-up statements
451 
WWUS41 KCLE 180242
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
942 PM EST Tue Dec 17 2019

PAZ002-181045-
/O.CON.KCLE.LE.W.0002.191218T0600Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
942 PM EST Tue Dec 17 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 1 AM WEDNESDAY
TO 7 AM EST THURSDAY...

* WHAT...Heavy lake effect snow expected. Total snow accumulations
  of 6 to 10 inches. Greatest snow totals are likely to occur 
  south of I-90 and east of I-79. Winds gusting as high as 35 mph.

* WHERE...Southern Erie county.

* WHEN...From 1 AM Wednesday to 7 AM EST Thursday.

* IMPACTS...Travel will be very difficult. The hazardous 
  conditions will likely impact the Wednesday morning and 
  evening commutes.

* ADDITIONAL DETAILS...A combination of falling and blowing snow 
  will lead to near-zero visibility at times. The heaviest 
  snowfall is likely Wednesday morning. Wind chills as cold as 
  zero to five degrees below zero are expected late Wednesday 
  evening and early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4198 7962 4199 7977 4212 7975 4221 7979 
        4212 8004 4197 8030 4184 8038 4186 8005 4184 8006 
        4185 7961 
TIME Y19M12D18T0600Z-Y19M12D19T0000Z
COORD...4200 7962 4201 7976 4221 7976 4216 7992 
        4211 7993 4204 8006 4193 8006 4188 8002 4185 7991 
        4191 7959 
TIME Y19M12D19T0000Z-Y19M12D19T1200Z

$$

OHZ013-181045-
/O.EXA.KCLE.WW.Y.0034.191218T0600Z-191218T1800Z/
Geauga-
Including the city of Chardon
942 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 1 PM EST
WEDNESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 2
  to 4 inches over northern Geauga county and 1 to 2 inches over
  southern Geauga county.

* WHERE...Geauga county.

* WHEN...From 1 AM to 1 PM EST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the Wednesday morning commute.

* ADDITIONAL DETAILS...A combination of falling and blowing snow 
  will lead to near-zero visibility at times. The heaviest 
  snowfall is likely Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

OHZ012-014-089-181045-
/O.CON.KCLE.WW.Y.0034.191218T0600Z-191218T1800Z/
Lake-Ashtabula Inland-Ashtabula Lakeshore-
Including the cities of Mentor, Jefferson, and Ashtabula
942 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 1 PM
EST WEDNESDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 3
  to 5 inches. Winds gusting as high as 35 mph.

* WHERE...Lake, Ashtabula Inland and Ashtabula Lakeshore 
  counties.

* WHEN...From 1 AM to 1 PM EST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the Wednesday morning commute.

* ADDITIONAL DETAILS...A combination of falling and blowing snow 
  will lead to near-zero visibility at times. The heaviest 
  snowfall is likely Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ001-003-181045-
/O.CON.KCLE.WW.Y.0034.191218T0600Z-191219T1200Z/
Northern Erie-Crawford-
Including the cities of Erie and Meadville
942 PM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM WEDNESDAY
TO 7 AM EST THURSDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 4
  to 7 inches. Winds gusting as high as 35 mph.

* WHERE...Northern Erie county.

* WHEN...From 1 AM Wednesday to 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions will likely impact the Wednesday morning and 
  evening commutes.

* ADDITIONAL DETAILS...A combination of falling and blowing snow 
  will lead to near-zero visibility at times. The heaviest 
  snowfall is likely Wednesday morning. Wind chills near zero 
  degrees are expected late Wednesday evening and early Thursday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
795 
WWUS41 KCLE 180800
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
300 AM EST Wed Dec 18 2019

...Arctic Air and Lake Effect Arrives Today...

.An Arctic cold front will move southeast across the area this
morning ushering in much colder air to the region. The cold air
will cause lake effect snow to occur today through Thursday
morning.

PAZ002-181600-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
300 AM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow expected. Total snow 
  accumulations of 6 to 10 inches. Greatest snow totals are 
  likely to occur south of I-90 and east of I-79. Winds gusting 
  as high as 35 mph.

* WHERE...Southern Erie county.

* WHEN...Through 7 AM EST Thursday.

* IMPACTS...Travel will be very difficult. The hazardous
  conditions will likely impact the morning and evening commutes
  today and possibly tomorrow morning.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times in the heaviest
  squalls. The heaviest snowfall will occur this morning as the 
  Arctic front interacts with the open lake. Wind chills as cold 
  as zero to five degrees below zero are expected late this 
  evening and early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4198 7962 4199 7977 4212 7975 4221 7979 
        4212 8004 4197 8030 4184 8038 4186 8005 4184 8006 
        4185 7961 
TIME Y19M12D18T0600Z-Y19M12D19T0000Z
COORD...4200 7962 4201 7976 4221 7976 4216 7992 
        4211 7993 4204 8006 4193 8006 4188 8002 4185 7991 
        4191 7959 
TIME Y19M12D19T0000Z-Y19M12D19T1200Z

$$

OHZ012>014-089-181600-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191218T1800Z/
Lake-Geauga-Ashtabula Inland-Ashtabula Lakeshore-
Including the cities of Mentor, Chardon, Jefferson, and Ashtabula
300 AM EST Wed Dec 18 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Lake effect snow expected. Total snow accumulations of 
  3 to 5 inches. Winds gusting as high as 35 mph.

* WHERE...Lake, Ashtabula Inland and Ashtabula Lakeshore 
  counties.

* WHEN...Through 1 PM EST today.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will likely impact the morning commute.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times in the heaviest
  squalls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ001-003-181600-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-Crawford-
Including the cities of Erie and Meadville
300 AM EST Wed Dec 18 2019

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

* WHAT...Lake effect snow expected. Total snow accumulations of 4
  to 6 inches. Winds gusting as high as 35 mph.

* WHERE...Northern Erie county.

* WHEN...Through 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will likely impact the morning and evening commutes
  and possibly tomorrow morning.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  will lead to near-zero visibility at times in the heaviest
  squalls. The heaviest snowfall is likely to occur this morning.
  Wind chills near zero degrees are expected late tonight and 
  early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
050 
WWUS41 KCLE 181511
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
1011 AM EST Wed Dec 18 2019

...Arctic Air and Lake Effect Arrives Today...

.An Arctic cold front will move southeast across the area this
morning ushering in much colder air to the region. The cold air
will cause lake effect snow to occur today through Thursday
morning.

PAZ002-182315-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
1011 AM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow
  accumulations of 3 to 7 inches expected this afternoon and
  tonight, making total snow accumulations of 6 to 10 inches.
  Greatest snow totals are expected south of I-90 and east of
  I-79. Winds may gust as high as 35 mph.

* WHERE...Southern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to heavy
  snow will lead to visibility of one mile or less. Wind chills 
  as cold as zero to five degrees below zero are expected late 
  this evening and early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4198 7962 4199 7977 4212 7975 4221 7979 
        4212 8004 4197 8030 4184 8038 4186 8005 4184 8006 
        4185 7961 
TIME Y19M12D18T0600Z-Y19M12D19T0000Z
COORD...4200 7962 4201 7976 4221 7976 4216 7992 
        4211 7993 4204 8006 4193 8006 4188 8002 4185 7991 
        4191 7959 
TIME Y19M12D19T0000Z-Y19M12D19T1200Z

$$

OHZ012>014-089-181800-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191218T1800Z/
Lake-Geauga-Ashtabula Inland-Ashtabula Lakeshore-
Including the cities of Mentor, Chardon, Jefferson, and Ashtabula
1011 AM EST Wed Dec 18 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Lake effect snow occurring. Additional snow accumulations
  of 1 to 2 inches through this afternoon will lead to storm total
  accumulations of 3 to 5 inches. Winds may gust as high as 35
  mph.

* WHERE...Lake, Geauga, Ashtabula Inland and Ashtabula Lakeshore 
  counties.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  with strong wind gusts may lead to visibility below one mile at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ001-003-182315-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-Crawford-
Including the cities of Erie and Meadville
1011 AM EST Wed Dec 18 2019

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

* WHAT...Lake effect snow occurring. Additional snow accumulations
  of 2 to 4 inches expected this afternoon and tonight, making
  total snow accumulations of 4 to 7 inches. Winds may gust as
  high as 35 mph.

* WHERE...Northern Erie and Crawford counties.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening commute.

* ADDITIONAL DETAILS...A combination of falling and blowing snow
  with strong wind gusts may lead to visibility below one mile at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
596 
WWUS41 KCLE 181814
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
114 PM EST Wed Dec 18 2019

...Snow Transitioning to Lake Effect Snow This Afternoon...

.An arctic air mass over the Great Lakes region will allow for snow 
to transition to lake effect snow over portions of Northwest 
Pennsylvania. The best push for lake effect snow will be this 
evening and tonight as the coldest air will settle in over the 
region and lake effect snow will become more organized.

OHZ012>014-089-181915-
/O.EXP.KCLE.WW.Y.0034.000000T0000Z-191218T1800Z/
Lake-Geauga-Ashtabula Inland-Ashtabula Lakeshore-
Including the cities of Mentor, Chardon, Jefferson, and Ashtabula
114 PM EST Wed Dec 18 2019

...WINTER WEATHER ADVISORY HAS EXPIRED...

Scattered snow showers remain over Northeast Ohio this afternoon.
Off and on snow showers are possible through the overnight as snow
transitions to lake effect. Accumulations over the region are
expected to be light with a maximum of 1 to 2 inches possible over
portions of Geauga and Ashtabula counties by daybreak on Thursday.

$$

PAZ003-190215-
/O.UPG.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
/O.EXA.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Crawford-
Including the city of Meadville
114 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow 
  accumulations of 3 to 7 inches are expected primarily this evening 
  and tonight, making storm total snow accumulations of 6 to 10 
  inches. Greatest snow totals are expected along and north of a 
  line from Conneautville to Saegertown to Hydetown and primarily 
  east of Interstate 79. Winds may gust as high as 35 mph.

* WHERE...Crawford county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to heavy
  snow will lead to visibility of one mile or less at times. Wind
  chills as cold as zero to five degrees below zero are expected
  late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4195 7959 4200 7962 4199 7977 4212 7975 
        4217 7977 4214 7995 4210 7998 4206 8011 4196 8018 
        4187 8020 4177 8006 4174 7989 4176 7989 4174 7963 
TIME Y19M12D18T1700Z-Y19M12D19T1200Z

$$

PAZ002-190215-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
114 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow 
  accumulations of 4 to 9 inches are expected primarily this evening 
  and tonight, making storm total snow accumulations of 7 to 13 
  inches. Greatest snow totals are expected south of Interstate 90 
  and east of Interstate 79. Winds may gust as high as 35 mph.

* WHERE...Southern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to heavy
  snow will lead to visibility of one mile or less at times. Wind
  chills as cold as zero to five degrees below zero are expected
  late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4195 7959 4200 7962 4199 7977 4212 7975 
        4217 7977 4214 7995 4210 7998 4206 8011 4196 8018 
        4187 8020 4177 8006 4174 7989 4176 7989 4174 7963 
TIME Y19M12D18T1700Z-Y19M12D19T1200Z

$$

PAZ001-190215-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-
Including the city of Erie
114 PM EST Wed Dec 18 2019

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

* WHAT...Lake effect snow occurring. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 35 
  mph.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to 
  heavy snow will lead to visibility of one mile or less at times.
  Wind chills as cold as zero to five degrees below zero are 
  expected late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
789 
WWUS41 KCLE 182027
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
327 PM EST Wed Dec 18 2019

...Lake Effect Snow to Continue Through Tonight...

.Lake effect snow has developed to the lee of Lake Erie this
afternoon and will persist through tonight. The highest
accumulations will be expected in interior portions of NW PA.

PAZ002-190430-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
327 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow
  accumulations of 4 to 9 inches are expected, making storm total
  snow accumulations of 7 to 13 inches. Greatest snow totals are 
  expected south of Interstate 90 and east of Interstate 79. Winds
  may gust as high as 35 mph.

* WHERE...Southern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to 
  heavy snow will lead to visibility of one mile or less at 
  times. Wind chills as cold as zero to five degrees below zero 
  are expected late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4195 7959 4200 7962 4199 7977 4212 7975 
        4217 7977 4214 7995 4210 7998 4206 8011 4196 8018 
        4187 8020 4177 8006 4174 7989 4176 7989 4174 7963 
TIME Y19M12D18T1700Z-Y19M12D19T1200Z

$$

PAZ003-190430-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Crawford-
Including the city of Meadville
327 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow
  accumulations of 3 to 7 inches are expected, making storm total
  snow accumulations of 6 to 10 inches. Greatest snow totals are 
  expected along and north of a line from Conneautville to 
  Saegertown to Hydetown and primarily east of Interstate 79. 
  Winds may gust as high as 35 mph.

* WHERE...Crawford county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to 
  heavy snow will lead to visibility of one mile or less at 
  times. Wind chills as cold as zero to five degrees below zero 
  are expected late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4195 7959 4200 7962 4199 7977 4212 7975 
        4217 7977 4214 7995 4210 7998 4206 8011 4196 8018 
        4187 8020 4177 8006 4174 7989 4176 7989 4174 7963 
TIME Y19M12D18T1700Z-Y19M12D19T1200Z

$$

PAZ001-190430-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-
Including the city of Erie
327 PM EST Wed Dec 18 2019

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

* WHAT...Lake effect snow occurring. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 35 
  mph.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Wind gusts to 35 mph with moderate to 
  heavy snow will lead to visibility of one mile or less at 
  times. Wind chills as cold as zero to five degrees below zero 
  are expected late this evening into early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
819 
WWUS41 KCLE 190338
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
1038 PM EST Wed Dec 18 2019

...Lake Effect Snow to Continue Through Tonight...

.Lake effect snow showers will continue overnight. Snow
accumulations will be highest where flow aligns both off Lake
Huron and Lake Erie. The highest accumulations will be expected 
in interior portions of Erie and Crawford Counties in Northwest
Pennsylvania. Breezy northwest winds with gusts to 25 mph will 
contribute to blowing and drifting of the light snow. 

PAZ002-191145-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-
Including the city of Edinboro
1038 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow
  accumulations of 1 to locally 4 inches, making for storm total
  values of 5 to 10 inches. Greatest snow totals are expected
  south of Interstate 90 and east of Interstate 79. Winds may gust
  as high as 25 mph.

* WHERE...Southern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Northwest winds gusting to 25 mph will
  combine with falling and blowing snow to reduce visibility below
  a mile at times. Wind chills as cold as zero to five degrees 
  below zero are expected late this evening into early Thursday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4200 7965 4199 7977 4212 7975 4218 7989 
        4208 8008 4192 8019 4181 8020 4178 8015 4175 7977 
        4181 7968 
TIME Y19M12D19T0300Z-Y19M12D19T1200Z

$$

PAZ003-191145-
/O.CON.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Crawford-
Including the city of Meadville
1038 PM EST Wed Dec 18 2019

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 AM EST
THURSDAY...

* WHAT...Heavy lake effect snow occurring. Additional snow
  accumulations of 1 to 3 inches are expected, bringing storm
  total snow accumulations to 4 to 9 inches. Greatest snow totals
  are expected along and north of a line from Conneautville to
  Saegertown to Hydetown and primarily east of Interstate 79.
  Winds may gust as high as 25 mph.

* WHERE...Crawford county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Northwest winds gusting to 25 mph will
  combine with falling and blowing snow to reduce visibility below
  a mile at times. Wind chills as cold as zero to five degrees
  below zero are expected late this evening into early Thursday
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway, and traffic
conditions.

&&

Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4200 7965 4199 7977 4212 7975 4218 7989 
        4208 8008 4192 8019 4181 8020 4178 8015 4175 7977 
        4181 7968 
TIME Y19M12D19T0300Z-Y19M12D19T1200Z

$$

PAZ001-191145-
/O.CON.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-
Including the city of Erie
1038 PM EST Wed Dec 18 2019

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

* WHAT...Lake effect snow occurring. Additional snow accumulations
  of 1 to 2 inches. Northwest winds gusting as high as 30 mph 
  will lead to areas of blowing snow.

* WHERE...Northern Erie county.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Northwest winds gusting to 30 mph with
  combine with falling and blowing snow to reduce visibilities
  below one mile at times. Wind chills will range from five above
  to five below zero late this evening into early Thursday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway, and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
063 
WWUS41 KCLE 190802
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
302 AM EST Thu Dec 19 2019

PAZ002-003-190915-
/O.CAN.KCLE.LE.W.0002.000000T0000Z-191219T1200Z/
Southern Erie-Crawford-
Including the cities of Edinboro and Meadville
302 AM EST Thu Dec 19 2019

...LAKE EFFECT SNOW WARNING IS CANCELLED...

The lake effect snow has diminished and only a light coating is
expected with any remaining snow showers today. Therefore, the 
lake effect snow warning has been cancelled.

$$

PAZ001-190915-
/O.CAN.KCLE.WW.Y.0034.000000T0000Z-191219T1200Z/
Northern Erie-
Including the city of Erie
302 AM EST Thu Dec 19 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

The lake effect snow has diminished and only a light coating is
expected with any remaining snow showers today. Therefore, the 
winter weather advisory has been cancelled.

$$

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

What forecasters said that day

The local office's own words before this lake effect snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this lake effect snow warning went out at Dec 17, 1:18 PM EST, 2 hours 30 minutes earlier.

Area forecast discussion, Dec 17, 1:18 PM EST, 2 hours 30 minutes before
Area Forecast Discussion
National Weather Service Cleveland OH
118 PM EST Tue Dec 17 2019

.SYNOPSIS...
Low pressure will move northeast through the Ohio Valley this
morning. An Alberta Clipper storm system will move southeast
through central Ontario, Canada tonight. The Clipper will force
an Arctic cold front through the local area Wednesday morning.
High pressure will build east across the area Thursday and slow
in forward motion through the end of the week. A warm front will
lift northeast across the area late Saturday.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
Snow banding tied to frontogenetical convergence aloft within the
northwest quadrant of a low pressure center will continue to end
from west to east over the eastern-half of our forecast area through
this early afternoon. This snow is expected to exit our CWA
completely by 3 PM  as the surface low moves northeastward from near
the northern WV/VA border to just east of Cape Cod by the end of
today. Simultaneously, the low pressure center at 850 mb will
continue moving northeastward from south-central NY. Little or no
additional snow accumulation is expected from this storm system
since already weak lift, including ascent in the dendritic snow
growth zone, will continue to weaken and contribute to inefficient
snow production. Thus, the Winter Weather Advisory has been allowed
to expire at 1 PM this afternoon.

Our attention turns to lake effect snow potential in the snowbelt
later today through Thursday morning and will continue to assess
this potential for the late afternoon forecast update. The rest of
our near-term forecast remains valid.

Previous Discussion...

A wintry forecast is in store for the forecast area during this
period. An upper level low pressure system will dive southeast
across the Great Lakes region through Wednesday. This will cause
surface low pressure to move northeast through the Ohio Valley
this morning and allow a slow moving surface high pressure to
build east toward the area through the period. The low pressure
system continues to push warm air into the region in the mid
levels causing mixed precipitation to occur. Temperatures at the
surface away from the lake shore are in the lower 30s at this
time resulting in some freezing rain in the winter weather
advisory area. Otherwise, snow is falling across the rest of
the area. As the low pressure system moves east of the area,
colder air will follow behind the system and change all of the
precipitation over to snow before ending by this afternoon.

As the upper level low pressure system moves southeast across
the area, a fast moving Alberta Clipper storm system will move
southeast across central Ontario, Canada. The low will force an
Arctic Cold front southeast across the area Wednesday morning.
Significantly colder air will move into the region behind the
front and will cause surface temperatures to drop through the
20s into the teens by evening. Wind chill values will drop into
the single digits most areas with some areas of values just
below zero. Some light snow shower activity will occur with the
Arctic Cold front tomorrow morning but expecting fair weather
otherwise across much of the forecast area by afternoon. The big
story with this package is the possibility for lake effect snow
to develop in the northeast snow belt. Latest model soundings
and short term guidance suggests an area of convergence will
develop late tonight and continue into Wednesday along the lake
shore of northeast Ohio and northwest Pennsylvania setting up a
band of lake effect snow in this area. Instability will
increase to moderate over the primary snow belt area as
temperatures fall through the day Wednesday into Wednesday
night. Inversion heights hover around 7000 feet and should be
adequate depth for the lake snow band to develop. The snow band
will persist through this forecast period and begin to shift a
bit inland by Wednesday evening. Therefore, expecting snow
accumulations between 6 and 10 inches with locally higher
amounts in the snow bands across the eastern half of Lake, the
northern half of Ashtabula, and all of Erie county in
Pennsylvania. Issued a winter storm watch for lake effect for
the above mentioned counties starting at 06z tonight through 12z
Thursday morning.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/...
Arctic air will continue to spill over the eastern Great Lakes
Wednesday evening with surface temperatures falling through the
teens and wind chills down into the single digits to around zero.
850 temperatures will be hovering around -17C to -20C through
Wednesday evening before temperatures aloft begin to moderate later
Wednesday night as the core of the Arctic air moves eastward. The
lake effect snow machine will continue for the primary Snowbelt
areas through Wednesday night with gradual decrease in organization
and intensity as the night goes on. High pressure moving across the
Ohio Valley will nose up into central Ohio with lighter winds by
Thursday morning and clearer skies. Temperatures will be coldest
across central and western Ohio with overnight low temperatures down
into the single digits potentially.

The lake effect snow showers will wrap up by Thursday morning.
Southerly winds return on Thursday and the slow moderation in
temperatures will begin. There will be slow clearing from southwest
to northeast across northern Ohio into NW Pennyslvania. Most areas
will not crack the freezing mark Thursday afternoon. Upper level
heights will rise Friday and temperatures will climb to seasonable
average levels in the upper 30s to around 40 degrees.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...
The weekend is looking relatively quiet and decent weather for late
December standards. The region will be in a fast moving westerly
flow but the systems riding through the upper level flow look like
they will stay just north of our area with minimum weather impacts
to our area. Southwesterly winds will bring relatively milder
weather Saturday through Monday with high temperatures slightly above
average in the 40s. There will be passing high cloudiness along with
periods of sunshine this weekend. And looking even further into the
Christmas holiday for the middle of next week, the weather pattern
looks to remain on the quiet side for our area. Our chances of
having a White Christmas locally are looking very slim to none at
this time.

&&

.AVIATION /18Z Tuesday THROUGH Sunday/...
Light snow and associated MVFR visibility east of a KCLE to KMFD
line will likely end from west to east by 20Z/Tues as a surface low
centered near the northern WV/VA border moves northeast to Atlantic
waters just east of Cape Cod by the end of today and a weak high
pressure ridge builds from the west. Outside the snowbelt, lingering
MVFR to IFR ceilings should exit the area from northwest to
southeast through this evening. MVFR to IFR ceilings should
persist over the snowbelt as lake effect clouds form this
afternoon and evening. Light snow showers may accompany these
lake effect clouds and reduce visibility to MVFR at times.
Surface winds will trend northwesterly to westerly through this
evening across northern OH and northwest PA.

During the 05Z to 10Z/Wed time period, a cold front and associated
surface trough approach the region from the northwest, while this
front/surface trough will sweep southeast through the area between
about 10Z and 18Z/Wed. Southwesterly to westerly surface winds shift
to northwesterly with the frontal passage. These winds should gust
as high as 20 to 30 knots. In addition, snow showers and MVFR
visibility/ceilings may accompany this frontal passage outside the
snowbelt. Within the snowbelt, expect lake effect/enhanced snow
showers to persist through 18Z/Wed. This includes KERI. MVFR to IFR
ceilings and MVFR to LIFR visibility are possible with these lake
snow showers.

.OUTLOOK...Non-VFR possible with lake effect snow in the
snowbelt through Thursday.

&&

.MARINE...
Low pressure will be moving from the Ohio Valley this morning to the
New England coastal region late today. Northerly to northwesterly
winds and waves will increase through the morning. There will be a
brief time window where the winds and waves will decrease this
afternoon into the early evening before a stronger Arctic cold front
moves across the lake tonight. To make it more simple, we have
extended the ongoing Small Craft Advisory through Wednesday night
and added the western basin nearshore water to a SCA starting
tonight through Wednesday night. Strong gusty northwest winds will
follow the passage of the cold front tonight through Wednesday
evening with gusts up to 30 knots. Waves will increase up to 4 to 9
feet potentially along the lakeshore waters. High pressure builds
back in on Thursday with better marine conditions expected through
Saturday across the region.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...Winter Storm Watch from 1 AM EST Wednesday through Thursday
     morning for OHZ012-014-089.
PA...Winter Storm Watch from 1 AM EST Wednesday through Thursday
     morning for PAZ001-002.
MARINE...Small Craft Advisory until 7 AM EST Thursday for LEZ147>149.
     Small Craft Advisory from 1 AM Wednesday to 1 AM EST Thursday
     for LEZ142-143.
     Small Craft Advisory until 1 AM EST Thursday for LEZ144>146.

&&

SYNOPSIS...Lombardy
NEAR TERM...Jaszka/Lombardy
SHORT TERM...Griffin
LONG TERM...Griffin
AVIATION...Jaszka
MARINE...Griffin
Hazardous weather outlook, Dec 17, 4:39 AM EST, 11 hours 9 minutes before
Hazardous Weather Outlook
National Weather Service Cleveland OH
439 AM EST Tue Dec 17 2019

OHZ020>023-027>033-036>038-047-PAZ003-180945-
Medina-Summit-Portage-Trumbull-Wyandot-Crawford-Richland-Ashland-
Wayne-Stark-Mahoning-Marion-Morrow-Holmes-Knox-
439 AM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

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

.DAY ONE...Today and 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...Wednesday through Monday.

An Arctic cold front will move southeast across the area
Wednesday morning and usher in much colder air to the region.
Temperatures will fall into the teens by evening. Wind chill
temperatures will be around zero Wednesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ003-006>011-013-017>019-180945-
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Geauga-Hancock-
Seneca-Huron-
439 AM EST Tue Dec 17 2019

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

An Arctic cold front will move southeast across the area
Wednesday morning and usher in much colder air to the region.
Temperatures will fall into the teens by evening. Wind chill
temperatures will be around zero Wednesday night. Snow is possible
with the cold front; especially in the east.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LEZ061-142>149-162>169-180945-
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-
439 AM EST Tue Dec 17 2019

This Hazardous Weather Outlook is for central Lake Erie, eastern
Lake Erie and western Lake Erie.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ012-014-089-180945-
Lake-Ashtabula Inland-Ashtabula Lakeshore-
439 AM EST Tue Dec 17 2019

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...

This Hazardous Weather Outlook is for northeast Ohio.

.DAY ONE...Today and tonight.

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

   Winter Storm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Winter Storm Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ001-002-180945-
Northern Erie-Southern Erie-
439 AM EST Tue Dec 17 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...
...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...

This Hazardous Weather Outlook is for northwest Pennsylvania.

.DAY ONE...Today and 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.
   Winter Storm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Winter Storm Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Dec 17, 9:48 AM EST, 6 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
948 AM EST TUE DEC 17 2019

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

0947 AM     SNOW             1 WNW NORTH EAST        42.22N  79.85W
12/17/2019  M2.0 INCH        ERIE               PA   TRAINED SPOTTER

            12-HOUR SNOWFALL.

&&

EVENT NUMBER CLE1901518

RC
Local storm report, Dec 17, 10:55 AM EST, 4 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
1055 AM EST TUE DEC 17 2019

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

1028 AM     SNOW             3 ENE TRUMBULL          41.70N  80.91W
12/17/2019  M2.0 INCH        ASHTABULA          OH   TRAINED SPOTTER

            24-HOUR SNOWFALL.

&&

EVENT NUMBER CLE1901519

RC

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 17, 3:47 AM ESTWinter Storm WatchCLEErie12 hr
Dec 17, 3:48 PM ESTWinter Weather AdvisoryCLECrawford, Erie35 hr

Nearby

Lake Effect Snow Warnings in Pennsylvania, 2019Every lake effect snow warning in 2019

Sources

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