Alert archive / New York / Special Weather Statements in 2021
Special Weather Statement, NWS Buffalo, NY
NWS Buffalo, NY issued this special weather statement at Jan 20, 2021, 6:47 AM EST for Monroe County, Orleans County, Wayne County, New York. It was in force for 88 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 20, 2021, 6:47 AM EST (11:47 UTC)
- Expired
- Jan 20, 2021, 8:15 AM EST
- In force
- 88 min
- Issued by
- NWS Buffalo, NY
Counties Monroe County, NY, Orleans County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 112 km from the middle of the area, began a volume at 11:51 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 00:00Z, 11.8 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
830
WWUS81 KBUF 201147
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
647 AM EST Wed Jan 20 2021
NYZ001>005-011-014-201315-
Ontario-Orleans-Wayne-Genesee-Monroe-Niagara-Northern Cayuga-
647 AM EST Wed Jan 20 2021
...A SNOW SQUALL WILL AFFECT WAYNE...EAST CENTRAL NIAGARA...
ORLEANS...CAYUGA...NORTHERN GENESEE...MONROE AND NORTHEASTERN ONTARIO
COUNTIES...
At 643 AM EST, a snow squall was located along the southern Lake
Ontario shoreline from Orleans to northern Cayuga counties. This
squall will move south and across Rochester, rapidly reducing
visibilities down to a mile or less this morning. A quick inch of
snow is possible with this squall.
Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Brockport, East Rochester,
Medina, Albion, Hilton, Webster, Fairport, Brighton, Gates-North
Gates, Fair Haven Beach State Park, Ontario, Henrietta, Penfield,
Newark, Williamson and Marion.
This includes the following highways...
Interstate 390 near exit 12.
Interstate 90 near exit 46.
Use extra caution if you must travel into or through this dangerous
snow squall. Rapid changes in visibility and potentially slick roads
are likely to lead to accidents. Consider delaying travel until the
squall passes your location.
Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.
LAT...LON 4334 7848 4335 7768 4328 7754 4332 7735
4333 7714 4331 7697 4336 7679 4336 7661
4325 7660 4303 7663 4301 7696 4300 7697
4307 7846 4309 7848
$$
HSKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 20, 5:51 AM EST | Special Weather Statement | BUF | Monroe, Orleans, Wayne | 54 min |
| Jan 20, 8:01 AM EST | Special Weather Statement | BUF | Genesee, Ontario | 59 min |
| Jan 20, 8:15 AM EST | Special Weather Statement | BUF | Cayuga | 60 min |
| Jan 20, 8:42 AM EST | Special Weather Statement | BUF | Lewis, Oswego | 78 min |
| Jan 20, 9:08 AM EST | Special Weather Statement | BUF | Livingston, Wyoming | 112 min |
Nearby
Special Weather Statements in New York, 2021Every special weather statement 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.