Category Archives: Aviation Weather

4 February 2019 significant ice storm in the Upper Great Lakes

On 4 February a shortwave tracked across the Upper Great Lakes towards the east, ahead of the shortwave, anomalously high moisture at low to mid-levels existed which contributed to a historic ice storm for the region. The NWS forecast office … Continue reading

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WS Harper Impacts on Northeast US

As Winter Storm Harper passed through the northeast United States, the storm brought heavy precipitation in the forms of snow, rain, and freezing rain that produced significant ice accumulation on the ground. Storm total snowfall, rainfall and ice accumulations were … Continue reading

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Santa Ana Winds and Dust Identification

It is that time of year again, to observe Santa Ana Wind events for Southern California. On 15 October 2018, an upper-level trough advected into the southwestern United States (i.e. see GOES-16, Upper Level Water Vapor imagery below), produced cold … Continue reading

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Dust off the coast of Africa!

Earlier this morning, a large areal extent of dust advected off the coast of Africa. The new National Oceanic and Atmospheric Administration¬† – 20 (NOAA-20) satellite, launched into orbit back in November 2017, captured the dust via Day/Night Band (DNB) … Continue reading

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GOES-16 Split Window Difference Precursor to Convective Initiation

There are two GOES-16 products related to convective activity.¬† One is related to convective initiation; that is, this product will identify new cumulus that will further develop into mature thunderstorms.¬† The second product identifies which mature thunderstorms have a high … Continue reading

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