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 21, 2021, 2:18 PM EDT for Jefferson County, Lewis County, New York. It was in force for 57 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 21, 2021, 2:18 PM EDT (18:18 UTC)
- Expired
- Aug 21, 2021, 3:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.00 in
- Wind
- 30
Counties Jefferson County, NY, Lewis County, NY
The radar
The Ft Drum radar (KTYX), 45 km from the middle of the area, began a volume at 18:20 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
Albany, NY (KALY), launched 12:00Z, 6.3 hours before the alert went out and 236 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
- 109 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
437
WWUS81 KBUF 211818
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
218 PM EDT Sat Aug 21 2021
NYZ007-008-211915-
Jefferson NY-Lewis NY-
218 PM EDT Sat Aug 21 2021
...A strong thunderstorm will impact portions of Jefferson and
central Lewis Counties through 315 PM EDT...
At 216 PM EDT, numerous slow moving showers and thunderstorms were
located across central Jefferson and northern Lewis counties. These
storms were moving west at about 10 mph.
HAZARD...Winds in excess of 30 mph and torrential rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could blow around unsecured objects and bring
down a few small tree limbs. Torrential rainfall may result
in ponding of water in poor drainage areas.
Locations impacted include...
Watertown, Fort Drum, Stony Point, Carthage, Lowville, Adams,
Dexter, Cedar Point State Park, Henderson Harbor, Barnes Corners,
Whetstone Gulf State Park, Denmark, New Bremen, Watson, Sackets
Harbor and Martinsburg.
This includes Interstate 81 between exits 41 and 48.
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 4380 7631 4389 7633 4392 7628 4393 7633
4391 7633 4412 7638 4414 7635 4420 7631
4420 7624 4423 7618 4409 7530 4367 7518
TIME...MOT...LOC 1816Z 114DEG 9KT 4386 7597
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
HitchcockThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 1:31 PM EDT | Special Weather Statement | BUF | Jefferson | 44 min |
| Aug 21, 3:09 PM EDT | Special Weather Statement | BUF | Jefferson | 66 min |
| Aug 21, 3:13 PM EDT | Special Marine Warning | BUF | 47 min | |
| Aug 21, 5:21 PM EDT | Special Weather Statement | BUF | Chautauqua | 54 min |
| Aug 21, 6:00 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Chautauqua | 4 hr |
| Aug 21, 6:55 PM EDT | Special Weather Statement | BUF | Cattaraugus | 50 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.