September 5 Labor Day Flood Watch Inland Should Expand East

September 5 2022

Monday Morning Update 

The Labor Day holiday may be ending early for some as rain has already moved into the mountains. A Flood Watch includes many campgrounds across western Maryland, West Virginia, and Pennsylvania as heavy rain is expected to slowly push east.

In this post you can compare the live radar widget and forecast simulations. We have seen all summer the tendency has been for rain to arrive earlier than the computer model guidance has shown. 

Thunderstorms will develop ahead of the main rain line in metro areas around Baltimore to southern PA this afternoon. But if you are at the beaches or southern Maryland, you should get through more of today dry, however the rain will reach you tonight and tomorrow.

Morning Surface Weather

The slow moving system has already reached our nearby mountains.  This will be steady rain, with locally heavy downpours that will slowly spread east. It will be with us through tomorrow, then lingering showers on Wednesday.

Morning Temperatures

Flood Watch Labor Day Monday

A large portion of the mountains into metro Philadelphia have been included in the advisory today. While there is a GAP between Frederick, Baltimore, and York, I expect these counties will be added by tonight into Tuesday. This is where rainfall may exceed 3 inches with some slow moving thunderstorms.

Rainfall Forecast ‘Potential’ Through Wednesday

LIVE RADAR WIDGET

*Rain this morning has reached Hagerstown… The green shading is where rain is identified by radar at cloud level and most likely reaching the ground.

Radar Simulations NAM 3 Km Model

Hourly Slider —> 2 PM to 11 PM

Reminder: This product has been running slow. Rain may arrive an hour earlier than shown here.

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Animation Noon to Midnight 

Afternoon Temperatures:

Temps will be dropping into the 70s when rain arrives.

CLIMATE DATA

TODAY September 5

Normal Low in Baltimore:  62ºF

Record 47ºF in 1997

Normal High in Baltimore: 83ºF

Record 96ºF 1954

September Begins Meteorological Autumn

Climate Data/Weather Stats For The Month

September Starts Meteorological Autumn: Weather Climate Stats For Maryland at Baltimore

Tuesday Temperatures 

Morning

Afternoon 

Radar Simulation: 6 AM to 10 PM

Tropical Tracks

There are still two systems in the Atlantic, but no immediate risk to land.

Tropical Storm Earl is moving north of Puerto Rico. This is expected to curve east of Bermuda.

7 Day Forecast

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