A Foggy Morning in Dallas, TX

The low clouds/fog were not very thick (vertically). The drone stayed lower than 400 feet. Here is the morning sounding (vertical profile of the atmosphere) from Fort Worth, TX .

Dec 9 FWD Sounding

If you watch the video above, once the drone gets above the clouds/fog the sky is clear and sunny. If you look at the sounding above you can see why. The red line (temperature) and green line (dewpoint) spread out indicating dry air resulting in a clear sky. At the bottom of the image (lowest part of the atmosphere) those two lines come together where the low clouds/fog were.

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Posted under Fog

This post was written by Schnack on December 9, 2014

Fog Time Lapse

Time lapse of fog in Seattle this week. Video is from KOMO news.

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Posted under Fog, Video

This post was written by Schnack on October 25, 2013

River Valley Fog

The clear sky this morning allows the visible satellite to show fog in the river valleys Sunday morning.

Sep 29 fog

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This post was written by Schnack on September 29, 2013

Another Foggy Night

A DENSE FOG ADVISORY is in effect tonight for areas east of Waterloo.

The visibility reports on the map below are as of 9:00 PM. Please drive carefully tonight and Monday morning. The fog will dissipate between 8 and 10 AM for all of eastern Iowa as the wind increases and mixes up the atmosphere.

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This post was written by Schnack on December 2, 2012

Dense Fog Advisory

The fog has gotten thick fast this evening lowering visibility to 1/4 or less in many locations. The fog will remain through early Thursday morning. 

Here is another look at the temperature profile from Davenport. The sounding gives us a good look at how the weather conditions change as you get higher in the atmosphere.

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Posted under Fog

This post was written by Schnack on February 1, 2012

A Foggy Start

The locations outlined in yellow are reporting foggy conditions at 7 AM. The fog is in eastern and central Iowa while the western part of the state has a clear sky.

Because the wind is light and will remain that way it will take a long time to mix the atmosphere up to thin out the fog. We might have to wait until some time this afternoon to get in on some sunshine.

Here are a few recent web cam images showing the foggy conditions. Don’t forget to turn your lights on when traveling in the fog.

 

Here is the morning sounding from Davenport. The clouds and fog are not very thick at all.

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Posted under Fog, Update

This post was written by Schnack on February 1, 2012