Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS Buffalo, NY

February 3, 2018Jefferson County, New York

NWS Buffalo, NY issued this special weather statement at Feb 3, 2018, 10:57 AM EST for Jefferson County, New York. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 3, 2018, 10:57 AM EST (15:57 UTC)
Expired
Feb 3, 2018, 12:00 PM EST
In force
63 min
Issued by
NWS Buffalo, NY

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 48 km from the middle of the area, began a volume at 15:59 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, 4.0 hours before the alert went out and 240 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 2018-02-03Temperature 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 2018-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 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
771 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
197 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Feb 3, 9:30 AM EST, 1 hour 27 minutes earlier.

Area forecast discussion, Feb 3, 9:30 AM EST, 1 hour 27 minutes before
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Hazardous weather outlook, Feb 3, 9:32 AM EST, 1 hour 25 minutes before
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In the hours before

Special weather statement, Feb 3, 6:03 AM EST, 4 hours 54 minutes before
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Special weather statement, Feb 3, 8:04 AM EST, 2 hours 53 minutes before
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Local storm report, Feb 3, 8:41 AM EST, 2 hours 16 minutes before
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Local storm report, Feb 3, 8:46 AM EST, 2 hours 11 minutes before
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Local storm report, Feb 3, 9:39 AM EST, 1 hour 18 minutes before
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Special weather statement, Feb 3, 10:57 AM EST, 0 minutes before
Special Weather Statement
National Weather Service Buffalo NY
1057 AM EST SAT FEB 3 2018

NYZ007-008-031700-
Jefferson-Lewis-
1057 AM EST SAT FEB 3 2018

...A BAND OF LAKE EFFECT SNOW WILL AFFECT JEFFERSON AND NORTHERN
LEWIS COUNTIES...

At 1052 AM EST, A band of lake effect snow producing snow fall rates
of 2 to 3 inches per hour will continue to slowly drift northward
across Jefferson County through late this morning. This band will
become position across extreme northern Jefferson county by early
this afternoon where it will remain the rest of of the afternoon
then weaken.

Locations impacted include...
Watertown, Fort Drum, Stony Point, Carthage, West Carthage, Clayton,
Adams, Dexter, Glen Park and Herrings.

This includes Interstate 81 between exits 41 and 52.

Visibilities will drop quickly to less than a quarter of a mile in
this band of lake effect snow.

If traveling across the area expect rapidly changing weather
conditions and snow covered roadways.
.

LAT...LON 4410 7517 4383 7514 4374 7628 4378 7629
      4383 7636 4387 7635 4384 7645 4385 7649
      4390 7650 4396 7644 4396 7634 4402 7636
      4405 7642 4410 7643 4414 7635 4420 7631
      4422 7620 4429 7615 4435 7595 4440 7586

Reynolds

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 2, 11:07 PM ESTSpecial Weather StatementBUFGenesee113 min
Feb 3, 12:11 AM ESTSpecial Weather StatementBUFOswego2 hr
Feb 3, 4:11 AM ESTSpecial Weather StatementBUFJefferson109 min
Feb 3, 6:03 AM ESTSpecial Weather StatementBUFJefferson117 min
Feb 3, 8:04 AM ESTSpecial Weather StatementBUFJefferson116 min
Feb 3, 1:40 PM ESTSpecial Weather StatementBUFJefferson80 min
Feb 3, 2:36 PM ESTWinter Weather AdvisoryBUFJefferson, Lewis, Oswego37 hr
Feb 3, 3:17 PM ESTSpecial Weather StatementBUFJefferson43 min
Feb 3, 3:57 PM ESTSmall Craft AdvisoryBUF51 hr

Nearby

Special Weather Statements in New York, 2018Every special weather statement in 2018

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.