Jump to content
  • Member Statistics

    18,686
    Total Members
    11,691
    Most Online
    dorkchop
    Newest Member
    dorkchop
    Joined

The “I bring the mojo” Jan 30-Feb 1 potential winter storm


lilj4425
 Share

Recommended Posts

9 minutes ago, BornAgain13 said:

6z GFS looks more realistic instead of 35-40" over more areas, its 15-30"  depending on location.

Nearly two feet in Raliegh is not realistic but it's promising to see on the map. 

26 years ago Raleigh got 20 inches and that was the all-time record for single storm. Even a foot will shutdown the city for a week.

  • Like 1
Link to comment
Share on other sites

 

Area Forecast Discussion National Weather Service Greenville-Spartanburg SC 627 AM EST Wed Jan 28 2026

 

Key message 3: Confidence is increasing that a significant winter weather event will impact at least a portion of the forecast area from Friday night through Saturday, with snow expected to be the primary precipitation type. Due to cold temperatures leading up to the event, impacts to travel could be significant. An intense short wave trough/evolving upper low is forecast to dig from the Corn Belt at the start of the period, to the Tenn Valley by Sat afternoon before the center of the upper low passes over, or just south of our CWA late Saturday...becoming increasingly negatively tilted w/ strong downstream diffluence as time passes. The timing of the development of this diffluence will be key in determining the placement and timing of cyclogenesis near the Southeast Coast Fri night/Saturday and associated sensible weather impacts for our forecast area. What is becoming clear is that surface development will occur close enough to the coast to allow frontogenetically-forced moisture and lift to impact at least the eastern half of the CWA Fri night into Saturday. PoPs have been increased to likely in these areas by Saturday morning...with at least solid chances across the western half. In terms of the precip type, temperatures may borderline at the RA/SN boundary for some areas at the beginning of the event, but all locations should quickly transition to snow as cold advection intensifies on the west side of the developing cyclone. In terms of QPF, the general consensus among deterministic and ensemble guidance is in the 0.25-0.5" range for much of the area, with the higher end of that range being more probable along/east of the I-77 corridor. However, with forecast profiles quickly cooling to well-below freezing through a deep layer, and surface temps that are expected to linger in the 20s, snow ratios look to be higher than the textbook 10:1 rule of thumb with this event, with snow ratio guidance from the National Blend of Models suggesting ratios of 15-20:1 are very possible. Based upon the latest NBM probabilistic guidance...which is largely supported by the individual ensemble systems of the ECMWF/Canadian/GFS, much of the forecast area will likely see at least Advisory-level snowfall, with solid chances for Warning-level snow of 3" or over areas roughly east of I-26. Much of this event is beyond the short term...and so some degree of deterministic run-to-run model shenanigans are to be expected over the next 24 hours or so, with single model runs depicting jogs to the east (less snow) or to the west (more snow) to be expected, but the key point is that at least Winter Weather Advisory-level snowfall now appears likely across all but the western quarter of the CWA by the end of Saturday.

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

×
×
  • Create New...