Alert archive / New York / Dense Fog Advisories in 2021
Dense Fog Advisory 2, NWS Buffalo, NY
NWS Buffalo, NY issued this dense fog advisory at Jun 4, 2021, 4:12 AM EDT for Erie County, Niagara County, New York. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 2021, 4:12 AM EDT (08:12 UTC)
- Expired
- Jun 4, 2021, 8:12 AM EDT
- In force
- 4 hr
- Issued by
- NWS Buffalo, NY
Counties Erie County, NY, Niagara County, NY
The radar
The Buffalo radar (KBUF), 2 km from the middle of the area, began a volume at 08:15 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 00:00Z, 8.2 hours before the alert went out and 5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1063 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
843 WWUS71 KBUF 040812 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 412 AM EDT Fri Jun 4 2021 NYZ001-010-041300- /O.NEW.KBUF.FG.Y.0002.210604T0812Z-210604T1300Z/ Niagara-Northern Erie- Including the cities of Niagara Falls and Buffalo 412 AM EDT Fri Jun 4 2021 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Widespread fog with reduced visibilities down to 1/4 mile at times. * WHERE...Western Niagara and Northern Erie counties... particularly near Lake Erie and the Niagara River. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$
1 follow-up statement
580 WWUS71 KBUF 041212 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 812 AM EDT Fri Jun 4 2021 NYZ001-010-041315- /O.CAN.KBUF.FG.Y.0002.000000T0000Z-210604T1300Z/ Niagara-Northern Erie- Including the cities of Niagara Falls and Buffalo 812 AM EDT Fri Jun 4 2021 ...DENSE FOG ADVISORY IS CANCELLED... Some patchy fog will persist very close to the Lake Erie shore in downtown Buffalo, otherwise visibility has improved elsewhere as fog dissipates. $$ Hitchcock
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 1:53 PM EDT | Special Weather Statement | BUF | Cattaraugus | 52 min |
| Jun 4, 7:25 PM EDT | Small Craft Advisory | BUF | 27 hr |
Nearby
Dense Fog Advisories in New York, 2021Every dense fog advisory 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.