Winter '09 / '10 - Snow Storm #6 - The Forecasts

Forecaster Summary
Forecasts in the table below are ranked by storm total precipitation (STP) in ascending order. Blue (red) STP values are below (above) the 25th (75th) percentile of all forecast STPs.

Average STP (93.8") per average number of stations (25) forecast: 3.8".



Nine entries...including two Rookies... one Intern...and six Senior forecasters...issued 229 station forecasts for the winter/s 6th contest snow storm.

Everyone's station forecasts have been posted on the Contest's web site.

Consensus for a modest SNE event.



Arctic Oscillation (AO) stuck well below zero. North Atlantic Oscillation (NAO) remains more than one standard deviation below its mean in response to hi-latitude omega block in the vicinity of Iceland. Pacific-North American (PNA) about one standard deviation indicating amplified westerlies across NOAM.

Disorganized area of surface LOW over OH Valley and the mid-Atlantic.  Storm b/comes better organized with height where closed circulations begin near 700 mb and continue throughout the remainder of troposphere.

Verification period ends 11:59 PM EST...WED 17-FEB-10.
Preliminary storm-total snowfall amounts will be posted the evening of THU 18-FEB-10.