Conditions: Baltimore, Maryland, 09/26/2022 02:20:03 pm
Temperature

76°

Mostly Cloudy

47°

Dew Point
Relative Humidity

36%

Feels Like

76°

Wind (W)

10mph

Air Pressure

29.72

Sun
Sun Rise

06:58 AM

Sun Set

06:57 PM

Day Length

11:59 Hours

Difference

2 min 32 sec loss

Moon
Moon Rise

07:33 AM

Moon Set

07:34 PM

Next: First Quarter

Oct 02,2022

Moon Phase

New Moon

Climate
Average Low

55°

76°

Average High
Record Low

41°


(2001)

95°


(1970)
Record High
Current Conditions

Chilly Weather Outlook Will Match Arrival Of Fall This Week

Maryland Weather
Outlook
climate data
Season
Forecast

Tuesday Evening September 20 

Are you ready for a break from this late summer heat? In the Mid Atlantic we have had a string of days in the mid to upper 80s, and that is about to change. In fact, a cold front will arrive on Thursday, the same day as the Autumnal Equinox. So Fall Officially begins at 9:03 PM September 22, and it will truly feel like it on Friday. This new pattern will also push Major Hurricane Fiona off the coast, along with newly named Tropical Storm Gaston. See that forecast below. 

Here’s a quick look at the weather transition 

NOAA Temperature Outlook

The 6 to 10 day outlook for next week, starting Monday September 26, looks well below average. It is important to note that there may be some blips along the way, but the overall trend is going lower in a hurry!

 

In Baltimore, ‘average high’ is in the mid 70s, but we may struggle to reach the 60s for a few days. Meanwhile, overnight lows will be in the 40s for many inland areas, especially away from the water.  The first 30s and frost deep in the mountains may also be on tap next week. 

 

Cold Front Thursday:

If you have been following my reports, then this may sound familiar: Models have been underplaying the timing and intensity of rain.  So the simulation below may not look like, much, which is why I have not plotted specifics yet. I simply want to show the movement and behavior of the rain with the front.

Radar Simulation: 8 AM to 8 PM Thursday 

NAM 3 Km Model

Showers will develop mid morning in and around Baltimore, then intensify as it pushes into southern Maryland by later in the afternoon. 

 

September 21 weather rain radar cold front

Wind Forecast: 8 AM to Midnight

September 20 wind forecast Thursday

Snapshot at 6 PM:

Winds from the Northwest will be 20 to 30 mph, with higher gusts.

Temperatures: 8 AM Thursday to 8 AM Friday

Ahead of the front temps will be well above average, but by Friday morning they will drop by at least 20 degrees.

September 20 weather temperature forecast colder

Friday Morning Snapshot

Lower 50s for the cities, but 40s just inland, west and north. Plus even parts of interior Delmarva. 

Farther west, 30s are very likely in McHenry by Deep Creek Lake (elevation around 2,500 Ft). They may see the first frost of the season in Garrett County this week.

Temperatures Outlook

European Model Plot for Baltimore at BWI. It will be cooler, especially in the mornings inland away from the water.

 

Weather Outlook: Pushing Hurricane Fiona Away

ECMWF Model 8 AM Thu to 8 PM Fri

That cold front will also sweep the coast and help turn Major Hurricane Fiona away from the US. That storm is forecast to reach Category 4 intensity and track closer to Bermuda.

September 20 hurricane Fiona forecast map

Hurricane Fiona Track

Hurricane Fiona is forecast to become a Category 4, then track close to Bermuda. 

The US East Coast will get rip currents and beach erosion.

Newly named Tropical Storm Gaston is farther east in the central Atlantic and no threat to land.

 

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