Sunday, March 3, 2013

Winter '12 / '13 - Storm #5: Call for Forecasts! Redux

Snowfall
-- liquid equivalent in mm --
Progs have been teasing a late season M-A event for days featuring a near-ideal synoptic set-up of a arctic HIGH pressure of moderate strength over eastern Canada/s Maritime provinces and northern New England and a slowly moving...quick deepening LOW off the NC coast.

The storm has come into better focus with the expected onset of frozen precipitation ~48 hours away at post-time.  SUN/s 12z runs shifted the max snowfall action center from SW VA and smack dab into the Contest/s M-A forecast area.

Areas on the map inside the light green (10-15 mm) indicate the GFS forecast for at least 4" of snow assuming 10:1 frozen-to-melt water ratio.

HPC/s late afternoon charts restrict contest-worthy snows to the mountainous regions of WV...VA..and MD...largely a result of a 'major compromise' among competing solutions.

The contest for Storm #5 may be canceled prior to deadline if NWP indicates a fizzling event.

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Forecast element: storm-total snowfall
Deadline for entries: 10:30 PM EST MON...04-MAR-13

Verification period begins: 12:01 AM TUE...05-MAR-13
Verification period ends: when the snow stops.

Enter your forecast at the Contest's home page here.
Follow the link from 'Enter Storm Forecast.'

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As always...there/s no cost...or fee...or advertising...or annoying requests for personal information to enter a forecast. It's just a fun exercise for winter wx enthusiasts to see who can make the best synoptic-scale snowfall forecast.

If you are issuing your first forecast this winter...or you entered the 'season-total' forecast contest...you/ll need to create an account (user name / password / valid e-mail...if you want a copy of your forecast sent to your Inbox).

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Want to be notified via e-mail when the 'Call for Forecast' is issued?
Send requests to 'newx at newx-forecasts dot com'.

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