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 7, 2021, 6:03 PM EDT for Monroe County, New York. It was in force for 42 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 7, 2021, 6:03 PM EDT (22:03 UTC)
- Expired
- Aug 7, 2021, 6:45 PM EDT
- In force
- 42 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.25 in
- Wind
- 40
County Monroe County, NY
The radar
The Buffalo radar (KBUF), 100 km from the middle of the area, began a volume at 22:05 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, 10.1 hours before the alert went out and 97 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
- 54 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
083
WWUS81 KBUF 072203
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
603 PM EDT Sat Aug 7 2021
NYZ003-004-013-014-072245-
Ontario NY-Livingston NY-Wayne NY-Monroe NY-
603 PM EDT Sat Aug 7 2021
...A strong thunderstorm will impact portions of southwestern Wayne,
northeastern Livingston, southeastern Monroe and northwestern Ontario
Counties through 645 PM EDT...
At 602 PM EDT, Doppler radar was tracking a strong thunderstorm near
Henrietta, or near Chili, moving northeast at 25 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
East Rochester, Webster, Fairport, Brighton, Ontario, Henrietta,
Penfield, Marion, Palmyra, Avon, Victor, Honeoye Falls, Lima,
Scottsville, Farmington, Walworth, Mendon and Rush.
This includes the following highways...
Interstate 390 between exits 9 and 12.
Interstate 90 between exits 46 and 43.
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 4286 7773 4301 7781 4328 7745 4318 7717
4296 7720
TIME...MOT...LOC 2202Z 235DEG 22KT 4303 7766
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
$$
ThomasThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:56 PM EDT | Special Marine Warning | BUF | 94 min | |
| Aug 7, 4:26 PM EDT | Special Marine Warning | BUF | 94 min | |
| Aug 7, 6:29 PM EDT | Flash Flood Warning | BUF | Livingston, Monroe | 94 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.