Wednesday Evening September 9 2020

There is a storm off of the US East Coast that is tropical in nature but not named. There is a lot of moisture flowing our way, and the satellite shows what looks like healthy development.

The set up on Thursday will push waves or bands of rain and heavy downpours that can quickly dump 1 to 3 inches on some spots. That is what a Flash Flood Watch has been issued. But the rain will extend farther inland. See the model maps and see your local forecast below.

Flash Flood Watch

Flash Flood Watch September 10


Visible Satellite Loop

Check out this view up to sunset today. The structure looks healthy and tropical.  Look closely and see if you can spot the circulation (swirl) east of OBX.  This is not where the Low Pressure has been identified, but it looks like it is trying.



Evening Set Up

Here is the Infrared Satellite, which colors in the higher cloud tops.  I’ve annotated the measured Low Pressure, which is well to the south of all of the convection (storm clouds).

September 9 tropical weather satellite Wednesday evening


IR Satellite Loop

Here is a wider view, showing the fire up of highest could tops in red. This is where the tropical downpours will be generated from:




Computer Models Forecast Maps

I want to restate on recored that the computer guidance has underestimate the rainfall and storms in many events over the past month. That is why there is anticipation that more will fall than shown here.

Compare the HRRR Model slider to the ECMWF and GFS interactive widget below.

I will have another update in the morning. 


HRRR Radar Simulation –> slider

We will watch the heave rain bands move in from the southeast. They should expand across the region at daybreak and become more widespread by noon.

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Rainfall Thursday aftenroon September 10 ECMWF


Rainfall Potential 

Rainfall forecast September 10




GFS Model:

Interactive Temperatures, Rain and Wind Slider

  • 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.


Thunderstorm Slider


  • 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.

You will notice more storms possible on Thursday.



Maryland Weather 

Maryland Weather Page

I wanted to keep it simple. Just the basics for a quick view at any time.

Maryland Weather Just In Weather

14 Local Maryland Pages (and York PA)

We have made a page for Maryland Weather which gives you the current conditions for 14 present area locations. Many of these match up with the spots on our route.  Please use this list below are reference. I will include them daily with my articles on the kids.

Local Hourly Forecasts and Local Radar
Central Maryland
Southern Maryland




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Also See: September Climate And Cool Temperature Outlook

August 31 Temperature Trend

Maryland Trek Team Shirt

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Maryland Trek Cycle Jerseys From Hill Killer

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Also See:

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


Record Hottest Month in Baltimore July 2020


Comet NEOWISE Viewing All July (photos/video)

Comet NEOWISE Bob Gelety


Maryland Strong Love ❤️ 

My ‘bonus’ daughter made this map of Maryland a few years ago. We brought it back for needed positivity. Now on her pick of tanks, and this cool Maryland T for men or women.

Click here or on the image to see more

This is all LOCAL: Made by Maryland Print House; Proceeds support my Maryland Trek 7 this August for Just In Power Kids.MarylandStrongLoveJaiden


Related Posts

2020 Tropical Storm and Hurricane Names and Naming History

Tropical Storm Hurricane History


Atlantic Tropical History: Maps of Origin Regions Every 10 Days

13_Tropical Storm Formation Sep11_20



Other  Links:

Was Your County Not Included?

Click this map for more on the regional forecast zones


Baltimore Weather At BWI May Not Be As Hot As Reported

Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.


Also See:

Double Solar Halo

Double solar halo June 8


Just In Power Kids:

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