Alert archive / New York / Snow Squall Warnings in 2019

Snow Squall Warning 4, NWS Buffalo, NY

January 27, 20197 counties in New York

NWS Buffalo, NY issued this snow squall warning at Jan 27, 2019, 8:05 AM EST for 7 counties in New York. It was in force for 55 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
Jan 27, 2019, 8:05 AM EST (13:05 UTC)
Expired
Jan 27, 2019, 9:00 AM EST
In force
55 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Allegany County, NY, Cayuga County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Oswego County, NY, Wayne County, NY

The radar

The Binghamton radar (KBGM), 112 km from the middle of the area, began a volume at 13:08 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, 1.1 hours before the alert went out and 142 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 2019-01-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2019-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

383 
WWUS51 KBUF 271306
SQWBUF

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Buffalo NY
805 AM EST Sun Jan 27 2019

NYC003-011-051-055-069-075-117-271400-
/O.NEW.KBUF.SQ.W.0004.190127T1305Z-190127T1400Z/
Wayne NY-Livingston NY-Cayuga NY-Oswego NY-Allegany NY-Monroe NY-
Ontario NY-
805 AM EST Sun Jan 27 2019

The National Weather Service in Buffalo has issued a

* Snow Squall Warning for...
  Wayne County in western New York...
  Southeastern Livingston County in western New York...
  Cayuga County in central New York...
  Southern Oswego County in central New York...
  Allegany County in western New York...
  Southeastern Monroe County in western New York...
  Ontario County in western New York...

* Until 900 AM EST.

* At 805 AM EST, a dangerous snow squall was located along a line
  extending from near Sodus to near Shinglehouse, moving east at 45
  mph.

  HAZARD...Extremely poor visibility in snow and blowing snow. Wind 
           gusts greater than 40 mph.

  SOURCE...Radar indicated.

  IMPACT...Dangerous life-threatening travel.

* This includes the following highways...
   Interstate 390 between exits 4 and 5.
   Interstate 90 between exits 45 and 40.
   Interstate 81 between exits 32 and 34.
   Interstate 86 between exits 30 and 33.

Locations impacted include...
Oswego, Geneva, Fulton, Canandaigua, Dansville, Wellsville, Fair
Haven Beach State Park, Ontario, Newark and Williamson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider avoiding or delaying travel until the snow squall passes
your location. If you must travel, use extra caution and allow extra
time. Rapid changes in visibility and slick road conditions may lead
to accidents.

&&

LAT...LON 4200 7831 4333 7719 4331 7697 4341 7670
      4352 7587 4323 7613 4327 7620 4320 7621
      4324 7627 4323 7626 4323 7648 4303 7650
      4301 7696 4276 7698 4276 7731 4258 7737
      4258 7766 4253 7772 4200 7775
TIME...MOT...LOC 1305Z 258DEG 41KT 4327 7705 4204 7820 

$$

HSK

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 27, 5:59 AM ESTSpecial Weather StatementBUFCattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans and 1 more61 min
Jan 27, 6:33 AM ESTSnow Squall WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more57 min
Jan 27, 7:18 AM ESTLakeshore Flood AdvisoryBUFChautauqua, Erie3 hr
Jan 27, 7:18 AM ESTSnow Squall WarningBUFAllegany, Cattaraugus, Genesee, Livingston, Monroe, Ontario and 2 more57 min
Jan 27, 8:40 AM ESTFlash Flood WarningBUFErie, Niagara7 hr
Jan 27, 11:40 AM ESTSpecial Weather StatementBUFChautauqua, Erie, Genesee, Wyoming50 min
Jan 27, 1:58 PM ESTWinter Storm WatchBUFErie, Genesee, Jefferson, Lewis, Oswego, Wyoming24 hr
Jan 27, 4:47 PM ESTSpecial Weather StatementBUFChautauqua3 hr

Nearby

Snow Squall Warnings in New York, 2019Every snow squall 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.