Alert archive / Pennsylvania / Lake Effect Snow Warnings in 2012

Lake Effect Snow Warning 2, NWS Cleveland, OH

February 25, 2012Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this lake effect snow warning at Feb 25, 2012, 10:21 AM EST for Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 25, 2012, 10:21 AM EST (15:21 UTC)
Expired
Feb 25, 2012, 6:42 PM EST
In force
8 hr
Issued by
NWS Cleveland, OH

Counties Ashtabula County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 139 km from the middle of the area, began a volume at 15:24 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, 3.4 hours before the alert went out and 176 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 2012-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2012-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.19395878Sfc1 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
592 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

128 
WWUS41 KCLE 251521
WSWCLE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
1021 AM EST SAT FEB 25 2012

PAZ002-003-252330-
/O.UPG.KCLE.LE.Y.0003.000000T0000Z-120226T0000Z/
/O.NEW.KCLE.LE.W.0002.120225T1521Z-120226T0300Z/
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...EDINBORO...MEADVILLE
1021 AM EST SAT FEB 25 2012

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 10 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A LAKE
EFFECT SNOW WARNING...WHICH IS IN EFFECT UNTIL 10 PM EST THIS
EVENING. THE LAKE EFFECT SNOW ADVISORY IS NO LONGER IN EFFECT. 

* ACCUMULATIONS....ADDITIONAL ACCUMULATIONS THROUGH THIS EVENING
  ARE EXPECTED TO RANGE BETWEEN 4 AND 6 WITH LOCALLY UP TO 8
  INCHES POSSIBLE IN HEAVIER SNOW BANDS.

* TIMING...LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH THIS
  EVENING...THEN BEGIN DIMINISHING EARLY TONIGHT.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW.
  CONDITIONS WILL BE HIGHLY VARIABLE IN THE WARNING AREA AS
  VISIBILITIES CAN DROP TO NEAR ZERO AND SNOWFALL RATES CAN RANGE
  AROUND AN INCH PER HOUR AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* VISIBILITIES...MAINLY LESS THAN A HALF MILE...BUT LESS THAN A
  QUARTER MILE IN HEAVIER BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$

OHZ014-252330-
/O.NEW.KCLE.LE.W.0002.120225T1521Z-120226T0300Z/
ASHTABULA INLAND-
INCLUDING THE CITY OF...JEFFERSON
1021 AM EST SAT FEB 25 2012

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 10 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A LAKE
EFFECT SNOW WARNING...WHICH IS IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* ACCUMULATIONS....ADDITIONAL ACCUMULATIONS THROUGH EARLY TONIGHT ARE
  EXPECTED TO RANGE BETWEEN 4 AND 6 WITH LOCALLY UP TO 8 INCHES
  POSSIBLE IN HEAVIER SNOW BANDS.

* TIMING...LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH THIS
  EVENING...THEN BEGIN DIMINISHING EARLY TONIGHT.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW.
  CONDITIONS WILL BE HIGHLY VARIABLE IN THE WARNING AREA AS
  VISIBILITIES CAN DROP TO NEAR ZERO AND SNOWFALL RATES CAN RANGE
  AROUND AN INCH PER HOUR AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* VISIBILITIES...MAINLY LESS THAN A HALF MILE...BUT LESS THAN A
  QUARTER MILE IN HEAVIER BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$

OHZ012-013-023-089-252330-
/O.EXB.KCLE.LE.Y.0003.000000T0000Z-120226T0300Z/
LAKE-GEAUGA-TRUMBULL-ASHTABULA LAKESHORE-
INCLUDING THE CITIES OF...MENTOR...CHARDON...WARREN...ASHTABULA
1021 AM EST SAT FEB 25 2012

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 10 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A LAKE
EFFECT SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM EST THIS
EVENING. 

* ACCUMULATIONS....ADDITIONAL ACCUMULATIONS THROUGH EARLY TONIGHT
  ARE EXPECTED TO RANGE BETWEEN 1 AND 3 WITH LOCALLY UP TO 5 INCHES
  POSSIBLE IN HEAVIER SNOW BANDS.

* TIMING...LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH EARLY
  TONIGHT. 

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW.
  VISIBILITIES IN HEAVIER SNOW BANDS CAN RANGE A HALF MILE OR LESS
  AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* VISIBILITIES...LESS THAN A MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$

PAZ001-252330-
/O.EXT.KCLE.LE.Y.0003.000000T0000Z-120226T0300Z/
NORTHERN ERIE-
INCLUDING THE CITY OF...ERIE
1021 AM EST SAT FEB 25 2012

...LAKE EFFECT SNOW ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING...

* ACCUMULATIONS....MAINLY 1 TO 3 INCHES WITH LOCALLY HIGHER
  AMOUNTS. HIGHEST ACCUMULATIONS WILL BE ACROSS THE INTERIOR
  LOCATIONS. 

* TIMING...THE SNOW SHOWERS WILL CONTINUE THROUGH EARLY TONIGHT.

* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...THE GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF 
  THE SNOW TODAY. IN THE HEAVIEST SNOW BANDS...VISIBILITIES 
  COULD BE REDUCED TO NEAR ZERO AT TIMES DUE TO THE GUSTY WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$
2 follow-up statements
438 
WWUS41 KCLE 252049
WSWCLE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
349 PM EST SAT FEB 25 2012

OHZ014-PAZ002-003-260300-
/O.CON.KCLE.LE.W.0002.000000T0000Z-120226T0300Z/
ASHTABULA INLAND-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...EDINBORO...MEADVILLE
349 PM EST SAT FEB 25 2012

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* ACCUMULATIONS....TOTAL ACCUMULATIONS THROUGH EARLY TONIGHT ARE
  EXPECTED TO RANGE BETWEEN 4 AND 6 WITH LOCALLY UP TO 8 INCHES.

* TIMING...LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH THIS
  EVENING...THEN BEGIN DIMINISHING EARLY TONIGHT.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW.
  CONDITIONS WILL BE HIGHLY VARIABLE IN THE WARNING AREA.
  MOTORISTS SHOULD BE AWARE OF QUICKLY CHANGING CONDITIONS.

* TEMPERATURES...UPPER 20S.

* VISIBILITIES...MAINLY TWO MILES OR LESS...WITH LESS THAN A HALF
  MILE POSSIBLE IN HEAVIER SNOW SHOWERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$

OHZ012-013-023-089-PAZ001-260300-
/O.CON.KCLE.LE.Y.0003.000000T0000Z-120226T0300Z/
LAKE-GEAUGA-TRUMBULL-ASHTABULA LAKESHORE-NORTHERN ERIE-
INCLUDING THE CITIES OF...MENTOR...CHARDON...WARREN...ASHTABULA...
ERIE
349 PM EST SAT FEB 25 2012

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST
THIS EVENING...

* ACCUMULATIONS....TOTAL ACCUMULATIONS THROUGH EARLY TONIGHT ARE
  EXPECTED TO RANGE BETWEEN 1 AND 3 WITH LOCALLY UP TO 5 INCHES
  POSSIBLE IN HEAVIER SNOW BANDS.

* TIMING...LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH THIS
  EVENING...THEN BEGIN DIMINISHING EARLY TONIGHT.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...GUSTY WINDS WILL CAUSE BLOWING AND DRIFTING OF SNOW.
  CONDITIONS WILL BE HIGHLY VARIABLE IN THE WARNING AREA.
  MOTORISTS SHOULD BE AWARE OF QUICKLY CHANGING CONDITIONS.

* TEMPERATURES...UPPER 20S.

* VISIBILITIES...MAINLY TWO MILES OR LESS...WITH LESS THAN A HALF
  MILE POSSIBLE IN HEAVIER SNOW SHOWERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
FOR FURTHER DETAILS OR UPDATES.

&&

$$
254 
WWUS41 KCLE 252342
WSWCLE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
642 PM EST SAT FEB 25 2012

OHZ014-PAZ002-003-260045-
/O.CAN.KCLE.LE.W.0002.000000T0000Z-120226T0300Z/
ASHTABULA INLAND-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...EDINBORO...MEADVILLE
642 PM EST SAT FEB 25 2012

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE LAKE
EFFECT SNOW WARNING. 

THE SIGNIFICANT SNOWFALL HAS ENDED. SOME SNOW SHOWERS WILL LINGER
INTO THE EVENING...HOWEVER...ADDITIONAL SNOWFALL SHOULD BE AN INCH
OR LESS. WEST WINDS AT 10 TO 20 MPH WILL CONTINUE TO CAUSE SOME
DRIFTING SNOW. MOTORISTS WILL HAVE TO USE CAUTION.

$$

OHZ012-013-023-089-PAZ001-260045-
/O.CAN.KCLE.LE.Y.0003.000000T0000Z-120226T0300Z/
LAKE-GEAUGA-TRUMBULL-ASHTABULA LAKESHORE-NORTHERN ERIE-
INCLUDING THE CITIES OF...MENTOR...CHARDON...WARREN...ASHTABULA...
ERIE
642 PM EST SAT FEB 25 2012

...LAKE EFFECT SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE LAKE
EFFECT SNOW ADVISORY. 

SIGNIFICANT SNOWFALL HAS ENDED. SOME SNOW SHOWERS WILL LINGER
INTO THE EVENING...HOWEVER...ADDITIONAL SNOWFALL SHOULD BE AN INCH
OR LESS. WEST WINDS AT 10 TO 20 MPH WILL CONTINUE TO CAUSE SOME
DRIFTING SNOW...MOTORISTS WILL HAVE TO USE CAUTION.

$$

Nearby

Lake Effect Snow Warnings in Pennsylvania, 2012Lake Effect Snow Warnings in Ohio, 2012Every lake effect snow warning in 2012

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.