Conditions: Baltimore, Maryland, 03/20/2023 06:00:04 am




Dew Point
Relative Humidity


Feels Like


Wind (W)


Air Pressure


Sun Rise

07:09 AM

Sun Set

07:18 PM

Day Length

12:09 Hours


2 min 35 sec gain

Moon Rise

06:53 AM

Moon Set

06:14 PM

Next: New Moon

Mar 21,2023

Moon Phase

Waning Crescent

Average Low



Average High
Record Low




Record High

St. Patrick’s Day Weather: Rain Timeline Then Colder Weekend May Bring Snow Showers

Maryland Weather
rain timeline
Winter Weather

March 16, 2023

Thursday Night Update

As luck would have it, St. Patrick’s Day falls on a Friday. This may end up being an enhanced holiday celebration. So if you are letting your inner Irish out or just ready to enjoy the weekend, I wanted to provide a brief look at the expected rain on the way. Behind the storm, more cold wind and perhaps some snow showers for ambience.

Personally, I have family in town for a full weekend of plans, so I wanted to give them a better glimpse as well.

Thursday Night Surface Weather

A strong storm is stretched from east Texas to the Canadian border. It brought severe storms into the Mississippi River Valley, while a band of heavy snow is falling near and north of Minneapolis.

Here in the east, we can expect this to be our Friday weather. Some showers may arrive in the morning, but the main band looks like a midday to afternoon event.

March 16 weather Thursday night


Friday Temperatures

We may reach our warmest temperature around noon. Then when the rain moves in, expect a chilly afternoon.

12 PM

March 17 temperatures St Patricks Day Noon


4 PM

March 17 temperatures St Patricks Day 4 PM


Radar Simulation

NAM 3 Km 12 PM to Midnight

There maybe some early showers, but the main rain is likely to arrive around lunchtime.

I would allow a buffer of 1 to 2 hours for any model error.

March 17 rain radar Friday



2 PM

A few hours of steady rain will be moving through. This may last 2 to 3 hours.

Do you see the face in this view? It looks a little scary, but there is nothing to fear here… except maybe some drivers. Please don’t drive if you are boozing!

March 17 rain radar Friday 2 PM


6 PM

A break or lull for a few hours. This may have some pockets of light showers or drizzle, but it will not be an all day rain.

March 17 rain radar Friday 4 PM


8 PM

One more push of rain showers into the evening. This will be followed by colder air and snow into the mountains.

March 17 rain radar Friday 8 PM


Saturday Wind Forecast

Sat 8 AM to Midnight

Yes, it is going to be windy again. Steady winds 15 to 25 mph, gusts up to 40 mph.

March 18 weather wind forecast Saturday


Radar Simulation

Sat 4 PM to Midnight

An upper level disturbance may allow a few snow showers to cross the mountains and reach central Maryland Saturday night. If we get any, they will be scattered and only have the capacity for a light coating (similar to the other morning).

March 18 weather snow radar Saturday



Extended Forecast

Our weekend will be chilly and windy. Most noticeable in the mornings with temps below freezing.

I will have a full forecast in the morning.


REPORT: March Snow and Extreme Weather History

March Snow Map NESIS 1993


REPORT: La Niña Has Ended. El Nina May Return By Fall


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My REALISTIC Expectations for the COLD OUTLOOK

March 4 weather NOAA Outlook Temperatures Day 6 to 10

Winter History: Low Snow And Late Starts

See my research based on Baltimore data since 1883.



I am aware there are some spelling and grammar typos, and occasional other glitches. I take responsibility for my mistakes, and even the computer glitches I may miss.

I have made a few public statements over the years, but if you are new here you may have missed it:

I have dyslexia, and found out during my second year at Cornell University. It didn’t stop me from getting my meteorology degree, and being first to get the AMS CBM in the Baltimore/Washington region. One of my professors told me that I had made it that far without knowing, and to not let it be a crutch going forward. That was Mark Wysocki and he was absolutely correct!

I do miss my mistakes in my own proofreading. The autocorrect spell check on my computer sometimes does an injustice to make it worse. I also can make mistakes in forecasting. No one is perfect predicting the future.

All of the maps and information are accurate. The ‘wordy’ stuff can get sticky. 

There has been no editor that can check my work when I needed it and have it ready to send out in a newsworthy timeline. Barbara Werner is a member of the web team that helps me maintain this site. She has taken it upon herself to edit typos, when she is able. That could be AFTER you read this.

I accept this and perhaps proves what you read is really from me…

It’s part of my charm.



STEM Assemblies/In School Fields Trips Are Back

Click to see more and ‘Book’ a visit to your school


My Winter Outlook: Not A Typical La Niña!

I see many factors to support colder influence with multiple systems. Early and later in winter. Check it out.


Also See The Winter Outlook Series:

Farmer’s Almanac Comparison

Winter Outlook 2023 Early Look At Snow From Two Farmers Almanacs

Triple Dip La Niña Winter


If you want a snowy winter, this is what you might want to look for in the rest of the tropical season.

Woolly Bear Caterpillars

Persimmon Seeds

Winter Weather Outlook: Persimmon Seeds And Snow Folklore

Click to see Top 20 and MORE

Normals And Records: Maryland and Baltimore Climate History

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