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, 5:21 PM EDT for Chautauqua County, New York. It was in force for 54 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, 5:21 PM EDT (21:21 UTC)
- Expired
- Aug 21, 2021, 6:15 PM EDT
- In force
- 54 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.00 in
- Wind
- 30
County Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 95 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 95 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
- 2 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1298 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
490
WWUS81 KBUF 212121
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
521 PM EDT Sat Aug 21 2021
NYZ019-212215-
Chautauqua NY-
521 PM EDT Sat Aug 21 2021
...Strong thunderstorms will impact portions of Chautauqua County
through 615 PM EDT...
At 519 PM EDT, Doppler radar was tracking several moderately strong
thunderstorms over the southern half of Chautauqua county. One was
centered near Clymer, or 20 miles west of Jamestown, moving
northwest at 20 mph.
HAZARD...Winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Jamestown, Dunkirk, Fredonia, Westfield, Lakewood, Falconer,
Mayville, Clymer, Long Point State Park, Jamestown West, Chautauqua
Institution, Lake Erie State Park, Findley Lake, SUNY Fredonia,
Frewsburg, Chautauqua, Busti, Portland, Sheridan and Ripley.
This includes the following highways...
Interstate 90 between exits 61 and 59.
Interstate 86 between exits 4 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is occurring with these storms and may lead to
LOCALIZED flooding. An inch of rain in less than an hour will not
be uncommon. Do not drive your vehicle through flooded roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4244 7950 4246 7948 4255 7927 4226 7907
4200 7908 4200 7976 4227 7976 4228 7973
4231 7977
TIME...MOT...LOC 2119Z 136DEG 17KT 4203 7960
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
RSHThe 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, 2:18 PM EDT | Special Weather Statement | BUF | Jefferson, Lewis | 57 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, 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.