October 21 Dense Fog Advisory First Forecast And Climate Data

Wednesday October 21 2020

The trade off for mild temperatures this time of year, is more moisture. The result after these longer nights, are large areas of thick fog.

A Dense Fog Advisory is in place for much of the region, with many areas in central Maryland and across the Bay on Delmarva with near Zero visibility. It is so thick in some places, it’s more like a heavy mist and you will need your windshield wipers.

This will slowly burn off, and bring yet another warm afternoon.

Here is first look weather forecast, and NEW GFS Interactive simulation slider.  Also see the journal of Maryland Weather conditions observed in Baltimore yesterday, climate report today, sunrise/sunset, moon phase, and daily weather map.

Dense Fog Advisory 

The Dense Fog Advisory includes all of Maryland between Frederick and Ocean City. The fog is most thick across the Bay and Delmarva.

There is fog as well in southern PA, even though those counties are not included here.  See the visibility report below.

 

 

Visibility

The thicker fog is where the numbers are in red and purple. Many areas under 1 mile!

 

 

Temperatures 

A very mild start to the day!

 

Morning Weather Map

A large area along the east coast with dense fog.  The light easterly winds has brought persistent rain into Florida. We will get the warmer winds for the afternoon, then repeat the rest of this week.

An early season storm across the Great Lakes has brought record snow to Minnesota and into Michigan. Another snow event is on the way across the Dakotas into Minnesota tomorrow with up to 12 inches of new snow.

 

 

Quick Weather Forecast:

Based on metro Baltimore

YOUR LOCAL WEATHER PAGE LINKS ARE BELOW

Quick Forecast For Central Maryland:

Fog will be slow to burn off later this morning. Afternoon sun should peak out of the clouds, and warm us back to the 70s.  The pattern will repeat for two more days. 

 

 

 

NEW: Interactive Temperatures, Rain, and Wind

Try this:

• Use the Orange Button to slide the timeline on your own. Or hit the Play Button at the lower left.
• You can also pinch to zoom or move the map.

 

 

Climate Data Update

Observations Yesterday:

Tuesday October 20 2020

High = 75ºF  at 2:53 PM 

Low = 54ºF  at 1:48 AM 

Rainfall: 0.00″

 

Winds  from the Northwest

• Top Speed (1 minute average) = 10 mph
• Top Gust (3 to 10 seconds) = 14 mph
• Average Wind Speed: 2.9 mph

Please note that humidity and dew point often change each hour like the temperature. These are not recorded as high or low, and can be arbitrary depending on the time you check.

 

Current Data and Past 72 Hourly Reports

You can get the hourly weather reports for the prior 72 hours at this link:

Baltimore Weather at BWI Past 72 Hours

 

 

Today’s Weather

Wednesday Climate Stats:

October 21, 2020 in Baltimore

Average High:  65ºF

Record High: 90ºF in 1969

Average  Low: 44ºF

Record Low:  26ºF 1952

Sunrise: 7:233 AM 

Sunset 6:19 PM 

*Daylight = 2:25 shorter than yesterday. 

Moon Phase

 

 

 

Also See:

 

 

 

 

Also See:

July 2020 The hottest on record. Will it hint at snow this winter?

 

 

Comet NEOWISE Viewing All July (photos/video)

 

 

 

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