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 25, 2021, 6:56 PM EDT for Livingston County, New York. It was in force for 64 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 25, 2021, 6:56 PM EDT (22:56 UTC)
- Expired
- Aug 25, 2021, 8:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.00 in
- Wind
- 40
County Livingston County, NY
The radar
The Buffalo radar (KBUF), 70 km from the middle of the area, began a volume at 22:55 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, 10.9 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
- 446 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
556
WWUS81 KBUF 252256
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
656 PM EDT Wed Aug 25 2021
NYZ012-013-021-260000-
Allegany NY-Livingston NY-Wyoming NY-
656 PM EDT Wed Aug 25 2021
...A strong thunderstorm will impact portions of southeastern
Wyoming, southwestern Livingston and north central Allegany Counties
through 800 PM EDT...
At 655 PM EDT, Doppler radar was tracking a strong thunderstorm near
Portageville, or near Letchworth State Park, moving northeast at 10
mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Geneseo, Letchworth State Park, Perry, Mount Morris, Portageville,
Groveland, Nunda, Pike, Castile, Silver Springs, Leicester,
Gainesville, Perry Center, Silver Lake, Hunt, Rossburg, Sonyea and
Dalton.
This includes Interstate 390 between exits 6 and 7.
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 4247 7813 4264 7820 4286 7788 4264 7767
TIME...MOT...LOC 2255Z 235DEG 9KT 4261 7806
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
HSKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:00 PM EDT | Special Marine Warning | BUF | 60 min | |
| Aug 25, 7:15 PM EDT | Special Weather Statement | BUF | Wayne | 45 min |
| Aug 25, 7:36 PM EDT | Flash Flood Warning | BUF | Allegany, Livingston, Wyoming | 2 hr |
| Aug 25, 7:50 PM EDT | Special Weather Statement | BUF | Livingston | 40 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.