Jump to content
  • Member Statistics

    17,907
    Total Members
    7,904
    Most Online
    Natrus4
    Newest Member
    Natrus4
    Joined

1/19 - The Roulette Wheel 29 Black Storm - OBS


DDweatherman
 Share

Recommended Posts

  On 1/19/2025 at 3:42 AM, jayyy said:


Already down to freezing in the Ellicott city area per obs. Thinking you’re right. And if the euro / rgem has the right idea of a near 95 qpf max, places like Columbia, EC, owings mills could see 

Expand  

Huh...now how does Ellicott city have lower elevation yet is cooler than where I am? (No panic just curious about the nuances of elevation in this state)

Link to comment
Share on other sites

  On 1/19/2025 at 3:36 AM, Maestrobjwa said:

Please save this GIF for any future references if somebody ever worries about the RGEM again, lol

Expand  

It is always wrong it seems but it sure does crank that coastal band over 95.

 

  On 1/19/2025 at 3:46 AM, DarkSharkWX said:

igu
1737374400-ZGoq5mTKrKc.png

Expand  

That looks more like climo distribution of snow than the other models.  

  • Like 1
Link to comment
Share on other sites

Euro and RGEM with the 95 band via the coastal. Gfs about 15-20 miles further west with the goods but still gives 95 corridor borderline warning snowfall

*May*have to raise that 2-4” forecast for areas just west of 95 if this keeps up

Link to comment
Share on other sites

  On 1/19/2025 at 3:47 AM, Maestrobjwa said:

Huh...now how does Ellicott city have lower elevation yet is cooler than where I am? (No panic just curious about the nuances of elevation in this state)

Expand  

Elevation is not the sole determining factor of microclimate temp variations. Consider that Baltimore, MD is closer to the Chesapeake Bay which will always have some impact. Urban density also matters. 

  • Like 2
Link to comment
Share on other sites

  On 1/19/2025 at 3:46 AM, pazzo83 said:

definitely some differences here even with minor changes in elevation.  32-33F down towards Mass Ave (Spring Valley).  37-39F up closer to Tenleytown / Ft Reno (highest point in DC).

Expand  

 

  On 1/19/2025 at 3:47 AM, Maestrobjwa said:

Huh...now how does Ellicott city have lower elevation yet is cooler than where I am? (No panic just curious about the nuances of elevation in this state)

Expand  

 

  On 1/19/2025 at 3:51 AM, Maestrobjwa said:

Why is that, I wonder? You'd think it'd be the opposite.

Expand  

This is likely due to a low level temperature inversion. You can see this on the mesonet website. There is a significant difference between Westminster and Clarksville.

  • Like 3
  • Thanks 1
Link to comment
Share on other sites

  On 1/19/2025 at 3:51 AM, Maestrobjwa said:

Why is that, I wonder? You'd think it'd be the opposite.

Expand  

Tons of factors for temp variations. Of course we can broad brush temperature "zones" but so many factors can impact temps even down to a street-to-street level. 
Existing snowpack might be more plentiful at one location versus another, proximity to water matters, urban density matters, wind direction (even if light), heck...even the exact site of a thermometer matters (if the placement is "to code") 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...