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 11, 2021, 5:37 AM EDT for Chautauqua County, New York. It was in force for 53 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 11, 2021, 5:37 AM EDT (09:37 UTC)
- Expired
- Aug 11, 2021, 6:30 AM EDT
- In force
- 53 min
- Issued by
- NWS Buffalo, NY
- Hail
- 0.00 in
- Wind
- 30
County Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 92 km from the middle of the area, began a volume at 09:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 11, 6:12 AM EDT | MARINE TSTM WIND 54 | 2 Nw Dunkirk, NY | AT DUNKIRK LIGHTHOUSE. |
| Aug 11, 6:12 AM EDT | MARINE TSTM WIND 62 | 2 Nw Dunkirk, NY | CORRECTS PREVIOUS MARINE TSTM WIND REPORT FROM 2 NW DUNKIRK. AT DUNKIRK LIGHTHOUSE. |
| Aug 11, 6:17 AM EDT | TSTM WND GST 55 | 3 Ene Dunkirk, NY | AT DUNKIRK AIRPORT. |
| Aug 11, 6:21 AM EDT | TSTM WND DMG | 1 E Silver Creek, NY | TREE DOWN NEAR ROUTE 20 IN HANOVER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.6 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
- 1071 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 910 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted.
667
WWUS81 KBUF 110937
SPSBUF
Special Weather Statement
National Weather Service Buffalo NY
537 AM EDT Wed Aug 11 2021
NYZ019-085-111030-
Chautauqua NY-Southern Erie NY-
537 AM EDT Wed Aug 11 2021
...A cluster of strong thunderstorm will impact portions of
southwestern Erie and Chautauqua Counties through 630 AM EDT...
At 536 AM EDT, Doppler radar was tracking a cluster of strong
thunderstorm near Findley Lake and moving east at 40 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, Silver Creek,
Falconer, Mayville, Clymer, Long Point State Park, Jamestown West,
SUNY Fredonia, Frewsburg, Chautauqua Institution, Lake Erie State
Park, Findley Lake, Evangola State Park, Angola on the Lake,
Chautauqua and Busti.
This includes the following highways...
Interstate 90 between exits 61 and 58.
Interstate 86 between exits 4 and 14.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
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 4265 7905 4200 7906 4200 7976 4227 7976
4228 7973 4231 7977
TIME...MOT...LOC 0936Z 253DEG 34KT 4209 7980
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
ReynoldsThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 9:29 PM EDT | Special Weather Statement | BUF | Jefferson | 31 min |
| Aug 10, 10:04 PM EDT | Special Weather Statement | BUF | Lewis | 41 min |
| Aug 10, 10:47 PM EDT | Flash Flood Warning | BUF | Jefferson, Lewis | 5 hr |
| Aug 11, 4:38 AM EDT | Special Weather Statement | BUF | Chautauqua, Erie, Niagara | 52 min |
| Aug 11, 5:41 AM EDT | Special Marine Warning | BUF | 64 min | |
| Aug 11, 6:09 AM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 51 min |
| Aug 11, 6:27 AM EDT | Special Marine Warning | BUF | 93 min | |
| Aug 11, 6:40 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 65 min |
| Aug 11, 6:48 AM EDT | Special Marine Warning | BUF | 42 min | |
| Aug 11, 7:16 AM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Genesee, Livingston, Monroe, Wyoming | 59 min |
| Aug 11, 7:39 AM EDT | Special Weather Statement | BUF | Genesee, Monroe | 81 min |
| Aug 11, 7:46 AM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario, Orleans | 50 min |
| Aug 11, 7:55 AM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario, Wayne | 50 min |
| Aug 11, 8:09 AM EDT | Special Marine Warning | BUF | 96 min | |
| Aug 11, 8:25 AM EDT | Special Weather Statement | BUF | Wayne | 65 min |
| Aug 11, 9:18 AM EDT | Special Weather Statement | BUF | Oswego | 27 min |
| Aug 11, 1:44 PM EDT | Small Craft Advisory | BUF | 6 hr | |
| Aug 11, 6:52 PM EDT | Special Weather Statement | BUF | Chautauqua | 38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.