Alert archive / New York / Dense Fog Advisories in 2025
Dense Fog Advisory 2, NWS Buffalo, NY
NWS Buffalo, NY issued this dense fog advisory at Apr 19, 2025, 1:00 PM EDT for Chautauqua County, Erie County, New York. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 19, 2025, 1:00 PM EDT (17:00 UTC)
- Expired
- Apr 19, 2025, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Buffalo, NY
Counties Chautauqua County, NY, Erie County, NY
The radar
The Buffalo radar (KBUF), 55 km from the middle of the area, began a volume at 17:04 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, 5.0 hours before the alert went out and 55 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
- 5 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 613 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 276 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this dense fog advisory went out at Apr 19, 12:16 PM EDT, 44 minutes earlier.
Area forecast discussion, Apr 19, 12:16 PM EDT, 44 minutes before
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</html>Hazardous weather outlook, Apr 19, 3:53 AM EDT, 9 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Buffalo NY 353 AM EDT Sat Apr 19 2025 NYZ001>008-010>014-019>021-085-200930- Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis- Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua- Cattaraugus-Allegany-Southern Erie- 353 AM EDT Sat Apr 19 2025 This Hazardous Weather Outlook is for western and north central New York. .DAY ONE...Today and tonight. A cold front will cross the area today, producing a few rounds of showers and widely scattered thunderstorms. There is a Marginal Risk that a few isolated storms may produce localized strong wind gusts and hail. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-200930- Upper Niagara River and Buffalo Harbor- Lake Erie nearshore waters from Ripley to Dunkirk- Lake Erie nearshore waters from Dunkirk to Buffalo- Lower Niagara River- Lake Ontario nearshore waters from the Niagara River to Hamlin Beach- Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay- Lake Ontario nearshore waters from Sodus Bay to Mexico Bay- Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence River- Lake Ontario open waters from the Niagara River to Hamlin Beach- Lake Ontario open waters from Hamlin Beach to Sodus Bay- Lake Ontario open waters from Sodus Bay to Mexico Bay- Lake Ontario open waters from Mexico Bay to the Saint Lawrence River- Saint Lawrence River from Cape Vincent to Ogdensburg- Saint Lawrence River from Ogdensburg to Saint Regis- 353 AM EDT Sat Apr 19 2025 This Hazardous Weather Outlook is for the New York waters of Lake Erie, Lake Ontario, and the Saint Lawrence River. .DAY ONE...Today and tonight. A cold front will cross the area today, producing a few rounds of showers and widely scattered thunderstorms. There is a Marginal Risk that a few isolated storms may produce localized strong wind gusts and hail. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf Hitchcock
In the hours before
Special weather statement, Apr 19, 8:02 AM EDT, 4 hours 58 minutes before
Special Weather Statement National Weather Service Buffalo NY 802 AM EDT Sat Apr 19 2025 NYZ010-191500- Northern Erie- Including the city of Buffalo 802 AM EDT Sat Apr 19 2025 ...AREAS OF DENSE FOG IN THE BUFFALO AREA THIS MORNING... There will be locally dense fog in the Buffalo metro area this morning, especially downtown near Lake Erie. Motorists should be prepared for poor visibility below a half mile when traveling this morning. The fog will linger near the lakeshore through this morning. Apffel
Local storm report, Apr 19, 11:22 AM EDT, 1 hour 38 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
1122 AM EDT Sat Apr 19 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1100 AM Non-Tstm Wnd Gst 3 ENE Dunkirk 42.50N 79.28W
04/19/2025 M61 MPH Chautauqua NY ASOS
ASOS station KDKK Dunkirk Airport.
&&Local storm report, Apr 19, 11:31 AM EDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
1131 AM EDT Sat Apr 19 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1056 AM Marine Tstm Wind 2 NW Dunkirk 42.49N 79.35W
04/19/2025 M58 MPH LEZ041 NY C-Man Station
&&The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 3:51 AM EDT | Small Craft Advisory | BUF | 30 hr | |
| Apr 19, 5:39 AM EDT | Special Marine Warning | BUF | 77 min | |
| Apr 19, 8:33 AM EDT | Special Marine Warning | BUF | 57 min | |
| Apr 19, 10:15 AM EDT | Special Marine Warning | BUF | 80 min | |
| Apr 19, 11:07 AM EDT | Severe Thunderstorm Warning | BUF | Chautauqua, Erie, Genesee, Wyoming | 38 min |
| Apr 19, 11:45 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Livingston, Wyoming | 30 min |
| Apr 19, 12:05 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario | 40 min |
Nearby
Dense Fog Advisories in New York, 2025Every dense fog advisory in 2025
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.