Wednesday November 11 2020

On November 10, 2020 both Garrett County and Cecil County weather forecast and warning responsibilities officially moved under the Baltimore/Washington National Weather Service Office in Sterling, VA.  That is the same office that covers central Maryland, DC, and northern Virginia.

 

NWS Zones Coverage Counties:

Sterling VA (LWX): Most of central Maryland west of the Chesapeake Bay, to Cumberland and Frostburg; plus north central Virginia.

• Now adding Garrett County in far western Maryland, and Cecil County in northeaster Maryland.

 

DELMARVA REMAINS SPLIT

Mount Holly NJ: Cecil, Kent, Queen Annes, Talbot, and Caroline Counties in Maryland; plus all of Delaware.

Wakefield VA: Maryland’s Lower Eastern Shore. This is for Dorchester, Wicomico, Somerset, and Worcester Counties. 

 

Pennsylvania

State College PA: Southern Pennsylvania including Adams, York, and Lancaster Counties.

 

 

What does this mean?

• One Office for weather forecasts for ALL of western Maryland.
• One Office for weather forecast along ALL of the I-95 corridor within Maryland.
• This will provide more fluid watches and warnings as needed.  In the past, the three difference offices may not have put out their alerts at the same time, causing confusion with local residents.

 

Statement From NWS

This change is being implemented in coordination with the Maryland Emergency Management Agency, Garrett County Emergency Management, and Cecil County Department of Emergency Services.

This change will enable the NWS to provide more efficient weather services to the State of Maryland by having a single NWS office provide forecast and warning services for all of western Maryland and the entire Interstate 95 corridor within Maryland.

 

Water Forecasts

NWS Baltimore/Washington will take over river forecast along the Susquehanna River at Conowingo Dam.  Also, tide forecasts and warnings for the Chesapeake and Delaware Canal at Chesapeake City.

 

In Depth

Central Maryland: Split NWS Weather Zones

Even under the same NWS Sterling VA office, the counties are broken down and some are split to account for the climate zones.

These county zones are split in the ‘north and west’ areas of Baltimore are based on the elevation factor and proximity to the Chesapeake Bay.

• Harford and Baltimore have a a ‘northern’ split.
• Howard and Montgomery have a ‘western’ split. This follows the higher elevation from the geologic feature called the Fall Line.

 

 

 

School Delays/Closings (before COVID19)

Maryland issues school closings and delays on a county wide basis. Pennsylvania, like many other states actually break the responsibility down to individual districts. The makes for much longer lists on active winter weather days, but caters better to that local area.

The Hereford Zone in Baltimore County accounts for the colder climate with more snow and ice.  Those schools have been featured, but many other counties could benefit from something similar.

It is possible that snow or ice cover part of these counties while other parts are wet. It’s pretty common in Harford County, with the change over with a few miles of I-95. But that county has charter schools and bus routes with larger areas that make it more difficult to enact a similar policy to Baltimore’s Hereford Zone. So sometimes that county will close, while it is wet in Abington or Haver de Grace. Or the county can be open but it is snowy and icy in Fallston, Jarrettsville, Pylesville, or Whiteford.

 

 

Wide Range Of Weather Across Small Area

I show this Average Annual Snowfall Map in every FITF school assembly. It is fascinating how much the weather can change in the winter just a few miles inland from the Chesapeake Bay and in the higher hills Northwest of I-95.

Yes, McHenry and Oakland get around 104 inches of snow in an average winter. This is going to add more fun to our local NWS office.

I will be updating our snowfall history in a new Winter Weather Page. That will be ready soon. FITF

 

 

 

 

FITF and SnowStix Stores are now OPEN

FITF GEAR

• Thanks to my wife Shannon who wanted to bring these hats to life.
• The Maryland Hoodie is high quality and a new way to show off our love of Snow and State.
• New items will be added soon.

FITF Store

 

 

Also See:

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

 

 

Comet NEOWISE Viewing All July (photos/video)