Alert archive / New York / Special Weather Statements in 2021
Special Weather Statement, NWS Buffalo, NY
NWS Buffalo, NY issued this special weather statement at Feb 20, 2021, 10:04 AM EST for Orleans County, New York. It was in force for 56 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 20, 2021, 10:04 AM EST (15:04 UTC)
- Expired
- Feb 20, 2021, 11:00 AM EST
- In force
- 56 min
- Issued by
- NWS Buffalo, NY
County Orleans County, NY
The radar
The Buffalo radar (KBUF), 69 km from the middle of the area, began a volume at 15:04 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, 3.1 hours before the alert went out and 67 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
- 592 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
573
WWUS81 KBUF 201504
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
1004 AM EST Sat Feb 20 2021
NYZ002-003-011-013-201600-
Livingston-Orleans-Genesee-Monroe-
1004 AM EST Sat Feb 20 2021
...LAKE EFFECT SNOW WILL AFFECT NORTHEASTERN LIVINGSTON...
ORLEANS...NORTHERN GENESEE AND MONROE COUNTIES...
At 1001 AM EST, An area of lake effect snow producing snow fall
rates over 1 inch per hour and sharply reduced visibility less than
a quarter mile was impacting Orleans county into western Monroe
county and northeast Genesee county.
Locations impacted include...
Rochester, Greece, Chili, Brockport, East Rochester, Medina, Albion,
Fairport, Brighton, Gates-North Gates, Henrietta, Le Roy,
Spencerport, Honeoye Falls, Byron, Caledonia, Lima, Scottsville,
Churchville and Oakfield.
This includes the following highways...
Interstate 390 between exits 11 and 12.
Interstate 90 between exits 47 and 46.
Visibilities will drop quickly to less than a quarter of a mile in
the heavier bands of lake effect snow.
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 4311 7847 4337 7846 4337 7848 4341 7846
4342 7825 4324 7776 4307 7737 4304 7737
4304 7748 4295 7748 4294 7758 4289 7756
$$
JLAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 4:26 AM EST | Small Craft Advisory | BUF | 21 hr | |
| Feb 20, 4:42 AM EST | Special Weather Statement | BUF | Erie, Wyoming | 78 min |
| Feb 20, 6:51 AM EST | Special Weather Statement | BUF | Erie, Wyoming | 84 min |
| Feb 20, 8:12 AM EST | Special Weather Statement | BUF | Erie | 63 min |
| Feb 20, 8:42 AM EST | Special Weather Statement | BUF | Niagara, Orleans | 63 min |
| Feb 20, 10:48 AM EST | Special Weather Statement | BUF | Erie, Genesee | 57 min |
| Feb 20, 2:17 PM EST | Special Weather Statement | BUF | Genesee, Orleans | 58 min |
| Feb 20, 2:23 PM EST | Special Weather Statement | BUF | Wyoming | 52 min |
| Feb 20, 4:14 PM EST | Special Weather Statement | BUF | Genesee, Monroe, Niagara, Orleans | 2 hr |
| Feb 20, 4:19 PM EST | Special Weather Statement | BUF | Erie | 116 min |
| Feb 20, 6:16 PM EST | Special Weather Statement | BUF | Genesee, Niagara, Orleans | 89 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.