Alert archive / New York / Lake Effect Snow Watches in 2015

Lake Effect Snow Watch 3, NWS Buffalo, NY

January 7, 20158 counties in New York

NWS Buffalo, NY issued this lake effect snow watch at Jan 7, 2015, 3:47 PM EST for 8 counties in New York. It took effect at Jan 9, 2015, 1:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 7, 2015, 3:47 PM EST (20:47 UTC)
In effect from
Jan 9, 2015, 1:00 AM EST
Expired
Jan 8, 2015, 4:02 AM EST
In force
Issued by
NWS Buffalo, NY

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Oswego County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 91 km from the middle of the area, began a volume at 20:44 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, 8.8 hours before the alert went out and 88 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 2015-01-07Temperature 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 2015-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939587897117Sfc1 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
1103 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Buffalo, NY wrote its last area forecast discussion before this lake effect snow watch went out at Jan 7, 12:45 PM EST, 3 hours 2 minutes earlier.

Area forecast discussion, Jan 7, 12:45 PM EST, 3 hours 2 minutes before
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Hazardous weather outlook, Jan 7, 10:32 AM EST, 5 hours 15 minutes before
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  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
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        Please try again in a few minutes.
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The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 6, 7:06 PM ESTWind Chill WarningBUFJefferson, Lewis39 hr
Jan 6, 8:14 PM ESTSpecial Weather StatementBUFErie, Genesee91 min
Jan 6, 8:23 PM ESTSpecial Weather StatementBUFJefferson52 min
Jan 6, 9:57 PM ESTSpecial Weather StatementBUFErie48 min
Jan 6, 11:12 PM ESTSpecial Weather StatementBUFErie63 min
Jan 7, 7:09 AM ESTSpecial Weather StatementBUFErie, Genesee, Wyoming51 min
Jan 7, 7:18 AM ESTSpecial Weather StatementBUFLivingston, Ontario57 min

Nearby

Lake Effect Snow Watches in New York, 2015Every lake effect snow watch in 2015

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.