Jump to content
  • Member Statistics

    17,515
    Total Members
    7,904
    Most Online
    wigl5l6k
    Newest Member
    wigl5l6k
    Joined

Winter storm 12/8-9 model discussion part II


Ji

Recommended Posts

Quick question.

 

Why does the NWS have us under a winter storm watch with 1 to 2 inches of snow expected? That merits a winter weather advisory, not a WSW. Don't tell me the NWS has just gone all weenie on us.

 

A Winter Storm Watch is issued when there is the potential for significant and hazardous winter weather within 48 hours. It does not mean that significant and hazardous winter weather will occur...it only means it is possible.

Significant and hazardous winter weather is defined as a combination of:

1)  5 inches or more of snow/sleet within a 12-hour period or 7 inches or more of snow/sleet within a 24-hour period

AND/OR

2)  Enough ice accumulation to cause damage to trees or powerlines.

AND/OR

3)  a life threatening or damaging combination of snow and/or ice accumulation with wind.

The snow/sleet criteria for a Winter Storm Watch for the five westernmost counties (Allegany, Mineral, Grant, Pendleton, and Highland) is higher (6 inches or more within a 12-hour period; 8 inches or more within a 24-hour period). 

Link to comment
Share on other sites

  • Replies 994
  • Created
  • Last Reply

Quick question.

 

Why does the NWS have us under a winter storm watch with 1 to 2 inches of snow expected? That merits a winter weather advisory, not a WSW. Don't tell me the NWS has just gone all weenie on us.

 

because it is a watch first, then will go to either a warning, or advisory as it gets within 12 hrs

Link to comment
Share on other sites

Quick question.

 

Why does the NWS have us under a winter storm watch with 1 to 2 inches of snow expected? That merits a winter weather advisory, not a WSW. Don't tell me the NWS has just gone all weenie on us.

 

it's a winter "storm" watch.  doesn't have to be just snow.  the icing threat is the big show with this one.

Link to comment
Share on other sites

On nam tomorrow's wave drops accumulating snow on Md/pa border

I think that is just the cold front moving through.. the 850 line I believe shows the temperature at the end of the period while the precip is for the duration leading up... 3 hours, 6 hours, 12 hours, etc... depending on what you are looking at

Link to comment
Share on other sites

I think that is just the cold front moving through.. the 850 line I believe shows the temperature at the end of the period while the precip is for the duration leading up... 3 hours, 6 hours, 12 hours, etc... depending on what you are looking at

 

Yeah. Its just a 1 hour burst but it is there for some of us to the NW

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...