Mini Snow Event And A Chilly Weekend

March 7, 2025 / alleghenymountainsweather / Leave a comment

2:50pm 3/7/25

A sunny Friday afternoon with clouds beginning to roll in from the west

● Quick views at 3pm across the area

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●3pm TEMPS

● Plenty of dry air at the surface. Dewpoints teens. So the lower levels will take awhile to moisten up

●Radar, don’t expect the initial moisture to reach the ground.

●Future precip type off the HRRR

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●Temps off the HRRR

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●Snow activity increasing overnight especially post midnight. Light accumulations. This event looks better than the weak event yesterday that had very limited moisture to work with.

Snowfall amounts look like

1-3″ above 2500′ Garrett, Preston, Somerset, Fayette, Tucker, Randolph, Grant, Pendleton, Pocahontas

2-5″ above 3500′ Tucker, Randolph, Grant, Pendleton.

■Off the models:

18z HRRR

12z GFS

12z ECMWF (Euro) Limiting moisture near the Mason Dixon. Euro was on par yesterday, I’m veering away from it on this event.

12z Canadian

Blended Model

18z Nam(typically over does precip)

WFO.(NWS)

6z Swiss

12z UK

■Winds slack for awhile tonight in to early Saturday and increased through the day Saturday and things stay pretty gusty in to Monday.

■SUMMARY

1- snow incoming tonight

2- steady temps Saturday, snow ends. Temps remain at and below freezing above 3000′ 32-35 2500-3000′

3-Gusty winds return Sat-Mon

4-Temps moderate Sunday 37-44

■

March 6, 2025

March 6, 2025March 9, 2025 / alleghenymountainsweather / Leave a comment

March 6, 2025

Forest Service Cam offline since 6/24/21

Mar 6(Thurs)

Cloudy, windy, light snow activity, bit of graupel, spotty freezing drizzle

Bittinger 2NW Valley

Precip .02

SF .3

SD .3 5pm

SF season to date 104.5

Dyacon data below

The Glades

Afternoon

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Garrett County Airport

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Webcams

Top of Wisp

Canaan Heights/Davis 3SE

Climate Reference Network Canaan

Cabin Mt at Bald Knob

Cabin Mt-Western Sods

Bear Rocks-Dolly Sods

Spruce Knob

Canaan Valley Refuge

Mt.Davis

Snowshoe

Petersburg Grant County Airport

Elkins Airport

Site Comparison

The Valley vs Cabin Mt

Bittinger 2NW Valley, Bittinger 4H, Garrett County Airport, Mt.Davis

Canaan area temps

Sods Plateau

High Ground Comparison

Up High and Down Low

Up High, High Valley, Low Valley

The Valleys

Wv High Ground Cold Spots vs DCA

RTMA

Radar

Satellite

Flow

Current Surface Features and 500mb Height Anomalies and Flow

Oakland

Blue Knob

March 5, 2025

March 5, 2025March 9, 2025 / alleghenymountainsweather / Leave a comment

March 5, 2025

Forest Service Cam offline since 6/24/21

Mar 5(Wed)

Cloudy, time of showers, line of rain, some areas of T-Storms, haul, strong wind

Bittinger 2NW Valley

Precip .42

SF 0

SD T

SF season to date 104.2

Dyacon Data Below

Bittinger 2NW Valley morning experimental Fridge spot

Bittinger 4H

Garrett County Airport

Top of Wisp

Canaan Heights/Davis 3SE

Climate Reference Network Canaan

Cabin Mt at Bald Knob

Cabin Mt-Western Sods

Bear Rocks-Dolly Sods

Spruce Knob

Canaan Valley Refuge

Mt.Davis

Snowshoe

Petersburg Grant County Airport

Elkins Airport

Site Comparison

The Valley vs Cabin Mt

Bittinger 2NW Valley, Bittinger 4H, Garrett County Airport, Mt.Davis

Canaan area temps

Sods Plateau

High Ground Comparison

Up High and Down Low

Up High, High Valley, Low Valley

The Valleys

Wv High Ground Cold Spots vs DCA

RTMA

Radar

Satellite

Flow

Current Surface Features and 500mb Height Anomalies and Flow

Rain, Wind And Storms to Snow, Wind And Cold

March 5, 2025 / alleghenymountainsweather / Leave a comment

Rain, Wind And Storms to Snow, Wind And Cold

■6:45am Radar

■SPC OUTLOOK

”

SPC AC 050548 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1148 PM CST Tue Mar 04 2025 Valid 051200Z – 061200Z …THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS THE EASTERN CAROLINAS INTO SOUTHEAST VIRGINIA… …SUMMARY… Severe thunderstorms capable of producing scattered damaging-wind gusts and a few tornadoes are possible Wednesday across parts of the eastern Carolinas into southeast Virginia. Other strong to severe storms may occur across parts of Florida and east Georgia, and also from the Allegheny Plateau into the Mid Atlantic. …Synopsis… An intense upper trough, initially over the MS Valley this morning, and characterized by a 500 mb jet streak of 90+ kt, will pivot east across the eastern U.S. through the period. Through the morning and early afternoon hours, a southerly low level jet greater than 60 kt will overspread the Southeast coastal vicinity into the Mid-Atlantic and lower Great Lakes regions. At the surface, strong warm advection will transport 60s F dewpoints northward ahead of an eastward-progressing cold front from FL into southeast GA and as far north as southeast VA. Moisture will become more modest with northward extent into eastern OH/PA/western NY. The net result will be a modestly unstable airmass in the presence of intense deep-layer flow supporting a large area of strong to severe/damaging wind potential. Tornado potential also is possible, with greater potential expected from the Carolinas into southeast VA where low-level moisture will be greater. …VA south to north FL… A QLCS is expected to be ongoing this morning, extending from western WV/VA and the western Carolinas into southeast GA and north FL. Diurnal heating will be limited, and low-level lapse rates will remain poor. This will pose some challenge for purely surface-based convection. Nevertheless, very strong large-scale ascent amid intense wind profiles will likely be sufficient for swaths of damaging gusts. Furthermore, forecast soundings indicate the presence of midlevel dry air just ahead of the eastward-advancing QLCS across the Carolinas and VA. This could further aid in some downward transport of stronger winds. Where 60s F dewpoints are achieved, QLCS tornadoes also will be possible, especially if backed low-level flow can be maintained to further enhance low-level SRH. While instability will likely be greater with southward extent, large-scale ascent will be lifting north of the GA/FL vicinity. Strong deep-layer flow will still be in place, and coupled with modest instability, this should result in some continued organized convection capable of strong to severe gusts. …Lower Great Lakes Vicinity… Further north, instability will be quite limited given a cooler boundary layer and dewpoints generally in the mid 40s to mid 50s F. However, cold temperatures aloft will result in steep midlevel lapse rates and foster MUCAPE values up to 500 J/kg. Additionally, closer to the surface low, vertically veering wind profiles with effective shear values near 40 kt, will support isolated low-topped supercells and perhaps linear segments. Strong to severe gusts, isolated hail and perhaps a tornado will be possible with this activity this afternoon. ..Leitman/Squitieri.. 03/05/2025