Alert archive / Pennsylvania / Winter Storm Watches in 2021

Winter Storm Watch 4, NWS Cleveland, OH

November 27, 2021Erie County, Pennsylvania

NWS Cleveland, OH issued this winter storm watch at Nov 27, 2021, 2:33 PM EST for Erie County, Pennsylvania. It took effect at Nov 28, 2021, 12:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 27, 2021, 2:33 PM EST (19:33 UTC)
In effect from
Nov 28, 2021, 12:00 PM EST
Expired
Nov 28, 2021, 4:10 AM EST
In force
Issued by
NWS Cleveland, OH

County Erie County, PA

The radar

The Buffalo radar (KBUF), 145 km from the middle of the area, began a volume at 19:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.6 hours before the alert went out and 146 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 2021-11-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2021-11-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
584 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

961 
WWUS41 KCLE 271933
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
233 PM EST Sat Nov 27 2021

PAZ003-280900-
/O.NEW.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Crawford-
Including the cities of Meadville and Titusville
233 PM EST Sat Nov 27 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SUNDAY TO 7 AM EST
MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 3 
  to 6 inches.

* WHERE...Crawford county.

* WHEN...From noon Sunday to 7 AM EST Monday.

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

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.

&&

$$

OHZ013-014-280900-
/O.NEW.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Geauga-Ashtabula Inland-
Including the cities of Chardon, South Russell, Bainbridge, 
Chesterland, Middlefield, Burton, Jefferson, Orwell, Andover, 
and Roaming Shores
233 PM EST Sat Nov 27 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SUNDAY TO 7 AM EST
MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 3
  to 6 inches.

* WHERE...Geauga and Ashtabula Inland counties.

* WHEN...From noon Sunday to 7 AM EST Monday.

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

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.

&&

$$

PAZ002-280900-
/O.NEW.KCLE.WS.A.0004.211128T1700Z-211129T1200Z/
Southern Erie-
Including the cities of Edinboro, Corry, and Union City
233 PM EST Sat Nov 27 2021

...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

* WHAT...Heavy lake effect snow possible. Total snow accumulations
  of 6 to 10 inches with isolated amounts up to 12 inches 
  possible.

* WHERE...Southern Erie county.

* WHEN...From Sunday afternoon through Monday morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
1 follow-up statement
537 
WWUS41 KCLE 280910
WSWCLE

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cleveland OH
410 AM EST Sun Nov 28 2021

PAZ002-281715-
/O.UPG.KCLE.WS.A.0004.211128T1700Z-211129T1200Z/
/O.NEW.KCLE.LE.W.0004.211128T1700Z-211129T1200Z/
Southern Erie-
Including the cities of Edinboro, Corry, and Union City
410 AM EST Sun Nov 28 2021

...LAKE EFFECT SNOW WARNING IN EFFECT FROM NOON TODAY TO 7 AM EST
MONDAY...

* WHAT...Heavy lake effect snow expected. Total snow 
  accumulations of 6 to 9 inches.

* WHERE...Southern Erie county.

* WHEN...From noon today to 7 AM EST Monday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact residual holiday weekend travel late
  this afternoon and evening.

* ADDITIONAL DETAILS...Highest snowfall totals are expected in
  areas of Erie County south of Interstates 90 and 86 and east of
  Interstate 79. The highest snowfall rates are expected between 2
  PM and 10 PM today with rates over one inch per hour possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon

COORD...4198 7962 4199 7977 4221 7976 4208 8008 
        4198 8018 4193 8034 4184 8034 4186 8005 4184 8006 
        4184 7981 4186 7981 4187 7961 
TIME Y21M11D28T1700Z-Y21M11D29T1200Z

$$

PAZ001-281715-
/O.EXA.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Northern Erie-
Including the city of Erie
410 AM EST Sun Nov 28 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 7 AM EST
MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 
  3 to 5 inches.

* WHERE...Northern Erie county.

* WHEN...From noon today to 7 AM EST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact residual holiday weekend travel late
  this afternoon and evening.

* ADDITIONAL DETAILS...Highest snowfall totals are expected in
  areas east of the city of Erie. The highest snowfall rates are
  expected between 2 PM and 10 PM today, when snow may begin
  accumulating on area roadways.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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.

&&

$$

OHZ011-012-281715-
/O.EXA.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Cuyahoga-Lake-
Including the cities of Cleveland, Mentor, Willoughby, Eastlake, 
Painesville, Willowick, and Wickliffe
410 AM EST Sun Nov 28 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 7 AM EST
MONDAY...

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

* WHERE...Cuyahoga and Lake counties.

* WHEN...From noon today to 7 AM EST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact residual holiday weekend travel late
  this afternoon and evening.

* ADDITIONAL DETAILS...Highest snowfall totals are expected in
  areas south of Interstate 90 in Lake County and east of
  Interstate 271 in Cuyahoga County. The highest snowfall rates 
  are expected between 2 PM and 10 PM today, when snow may begin 
  accumulating on area roadways.

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.

&&

$$

PAZ003-281715-
/O.CON.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Crawford-
Including the cities of Meadville and Titusville
410 AM EST Sun Nov 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
7 AM EST MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 
  3 to 5 inches.

* WHERE...Crawford county.

* WHEN...From noon today to 7 AM EST Monday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact residual holiday weekend travel late
  this afternoon and evening.

* ADDITIONAL DETAILS...The highest snowfall rates are expected 
  between 2 PM and 10 PM today, when snow may begin accumulating 
  on area roadways.

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.

&&

$$

OHZ013-014-281715-
/O.CON.KCLE.WW.Y.0016.211128T1700Z-211129T1200Z/
Geauga-Ashtabula Inland-
Including the cities of Chardon, South Russell, Bainbridge, 
Chesterland, Middlefield, Burton, Jefferson, Orwell, Andover, 
and Roaming Shores
410 AM EST Sun Nov 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
7 AM EST MONDAY...

* WHAT...Lake effect snow expected. Total snow accumulations of 
  3 to 5 inches.

* WHERE...Geauga and Ashtabula Inland counties.

* WHEN...From noon today to 7 AM EST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact residual holiday weekend travel late
  this afternoon and evening.

* ADDITIONAL DETAILS...The highest snowfall rates are expected 
  between 2 PM and 10 PM today, when snow may begin accumulating 
  on area roadways.

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.

&&

$$

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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 27, 2:33 PM ESTWinter Weather AdvisoryCLECrawford, Erie40 hr

Nearby

Winter Storm Watches in Pennsylvania, 2021Every winter storm watch in 2021

Sources

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