Alert archive / New York / Dense Fog Advisories in 2015
Dense Fog Advisory 2, NWS Buffalo, NY
NWS Buffalo, NY issued this dense fog advisory at Apr 3, 2015, 4:09 AM EDT for Erie County, Jefferson County, Niagara County, New York. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2015, 4:09 AM EDT (08:09 UTC)
- Expired
- Apr 3, 2015, 9:00 AM EDT
- In force
- 5 hr
- Issued by
- NWS Buffalo, NY
Counties Erie County, NY, Jefferson County, NY, Niagara County, NY
The radar
The Buffalo radar (KBUF), 83 km from the middle of the area, began a volume at 08:13 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
Pittsburgh, PA (KAGC), launched 00:00Z, 8.2 hours before the alert went out and 373 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
- 745 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 590 m²/s²
- 0-3 km storm-relative helicity
- 651 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 3, 1:42 AM EDT, 2 hours 27 minutes earlier.
Area forecast discussion, Apr 3, 1:42 AM EDT, 2 hours 27 minutes before
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</html>Hazardous weather outlook, Apr 2, 1:37 PM EDT, 14 hours 32 minutes before
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</html>The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 9:35 AM EDT | Dense Fog Advisory | BUF | Erie | 3 hr |
| Apr 3, 3:39 PM EDT | Small Craft Advisory | BUF | 40 hr |
Nearby
Dense Fog Advisories in New York, 2015Every dense fog advisory in 2015
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.