WxRisk.com – Windsong Forecasts

This morning statement is being issued at 0015 EDT APRIL 9

*** If you are unfamiliar with WXRISK.COM, Click HERE to learn more about it****

This alert is going out because of the POTENTIAL for a significant frost and a possible freeze during the mornings of April 12, April 13 and 14.

The weather model data on Sunday afternoon and early Monday morning continues to show a high % for a significant frost over large portions of the Middle Atlantic states on the morning of April 11 or 12 and / or April 13. Over on the web site and on the Facebook pages I have been talking about this potential since the middle of last week.

The pattern continues to turn significantly colder, but the good news is that it is not going to last. There is a large LOW located over southeastern Canada which is trapped by a block in the jet stream over Labrador and southern Greenland. This will allow for 2 late season cold air masses to drive south and east, through the Upper Plains, into the Midwest and the East coast from SC to Maine. Each of these late season cold air masses will be represented by large HIGH pressure areas.

The air mass will reach its maximum intensity with respect to the cold temperatures over the East Coast – including VA, NC, WVA, MD, and PA on the mornings of April 11 and 12. However an area of Low pressure off the East Coast on the morning of April 11 will probably keep the winds “up”. But once that weak Low moves away from the coast, during the overnight hours of April 11-12, there could be a widespread and significant frost or even a FREEZE over portions of western NC, WVA and western VA.

The best chance for seeing no more damaging or significant freeze will be from I-81 WEST, whereas the area from I-81 EAST to highway Rte 15 will be the area which has the best chance for seeing a frost.

The last cold morning will be the morning of April 13. By that time, the last of the large cold HIGH pressure areas will be leaving the East Coast and the winds will become westerly then southwest by the afternoon of 13th. By that point the Midwest will turn much warmer with temperatures surging into the 70s and those very warm temperatures will reach the lower Middle Atlantic states by the 15th of April.

The next chance of any significant rain will not be until April 18 over WVA, NC, VA and MD.

David Tolleris, ” DT”
wxrisk@comcast.net
(804) 307-8070
Ask for DT