Alert archive / New York / Special Weather Statements in 2021
Special Weather Statement, NWS Buffalo, NY
NWS Buffalo, NY issued this special weather statement at Aug 17, 2021, 3:08 PM EDT for Monroe County, New York. It was in force for 37 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
- Aug 17, 2021, 3:08 PM EDT (19:08 UTC)
- Expired
- Aug 17, 2021, 3:45 PM EDT
- In force
- 37 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.00 in
- Wind
- 30
County Monroe County, NY
The radar
The Buffalo radar (KBUF), 95 km from the middle of the area, began a volume at 19:09 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, 7.1 hours before the alert went out and 93 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
- 418 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
802
WWUS81 KBUF 171908
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
308 PM EDT Tue Aug 17 2021
NYZ003-171945-
Monroe NY-
308 PM EDT Tue Aug 17 2021
...A strong thunderstorm will impact portions of northwestern Monroe
County through 345 PM EDT...
At 307 PM EDT, Doppler radar was tracking a strong thunderstorm
capable of heavy rain over Spencerport, or near Greece, moving
northeast at 25 mph.
HAZARD...Winds in excess of 30 mph. Heavy rain.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Rochester, Greece, Irondequoit, Brockport, Hilton, Gates-North Gates,
Spencerport, Churchville, Charlotte, North Chili and Braddock Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4329 7755 4328 7754 4329 7750 4327 7747
4305 7786 4321 7796 4338 7773
TIME...MOT...LOC 1907Z 230DEG 20KT 4322 7777
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
HSKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 8:01 AM EDT | Special Weather Statement | BUF | Jefferson | 74 min |
| Aug 17, 2:59 PM EDT | Flash Flood Watch | BUF | Allegany, Cattaraugus, Cayuga, Lewis, Livingston, Ontario and 2 more | 41 hr |
| Aug 17, 3:54 PM EDT | Special Weather Statement | BUF | Wayne | 66 min |
| Aug 17, 4:17 PM EDT | Flash Flood Warning | BUF | Cayuga, Ontario, Wayne | 86 min |
| Aug 17, 4:48 PM EDT | Special Weather Statement | BUF | Cayuga | 42 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.