On the weathermap, two areas of low pressure have tracked into Missouri, and Arkansas. The latest pressure change maps indicate that these lows are weakening and with no definitive front running pressure falls at the moment. This would suggest, for the moment, that which ever low takes over as the primary may skirt further south. Again, highly uncertain even for the nowcasting time period.
Model trends continue to inch to the south and east. Still very marginal temperature profile for supporting snow tomorrow. Model forecasted water equivalents continue to exceed 1.0" and confidence is high for this to verify. Strong omega will make this a close fight for snow accumulations. Great dendritic growth will provide for a prolonged burst of moderate to heavy snow between 4pm Tuesday and 2am Wednesday. The question is whether boundary layer temperatures will support this. Very high bust potential exists with this forecast, in either direction. Also, significant differences will exist for higher elevations as well as northwest locations.
Snow accumulation forecast for elevations above 1000ft: 5" - 8"
Snow accumulation forecast for elevations below 1000ft: 3.5" - 5.5"
|posted by Sam Lillo @ 2/25/2008 08:34:00 PM
