Thursday, March 28, 2013

Really not much change is needed in the ongoing forecast below....Forecast concerns, Temps, and precipitation chances this weekend and type....Will try to hash this all out.....
 
***CURRENT CONDITIONS***
 
Temps have made a nice recovery...Temps now in the middle 30s across the FA with mostly sunny skies....Still a few high clouds around,but those will be thinning....Winds are light out of the Southeast...
 
***SHORT TERM FORECAST DISCUSSION***
 
Two concerns we have in the short term...1 how high to run with temps...2 precip and what types.
First out of the gates will be the temps.....High pressure system will slowly being pushing off to the East...Last night temps dropped like a rock to a low of 14....Northwest flow will slowly be giving way to a Southwesterly flow tomorrow....Three main players that will make temps a pain in the butt..1 The deep snow pack throughout the upper Midwest....Though a few pockets of snow free areas do reside over Southwestern MN....Then basically snow free in NE/KS....2....Cloud cover will also play havoc on the temps....3 Models not picking up on the snow pack, which is leading to higher temps forecasted by them......Clouds that we currently have should be thinning out today.....This will allow for temps to warm into the 40s today...However if clouds hang around longer than forecast look for temps upper 30s to lower 40s versus lower to middle 40s....So today temps are rather easy to forecast.....Tomorrow is another whole new book....
With some snow melt likely today, will there be enough to form fog tonight, if so how thick will it be....Profiles don't show fog formation, however again models have really no clue how deep the snow pack is....If tomorrow turns out to more sun than clouds temps will shoot towards normal or a few degrees warmer...ATTM I refuse to forecast temps in the lower 50s....For all the said reasons above...Either way tomorrow will be warmer than Saturday...Friday night the shortwave will begin to effect the FA...Moisture will flow into the area, this lead to an increasing chances of freezing rain this should last through the early morning hours on Saturday before the all rain is forecast.....Temps on Saturday will for sure be held down to the lower 40s with clouds and rain around, right now profile reading do show all rain on Saturday..Could be a few thunderstorms working their way into the area during the afternoon and evening hours.....Saturday night we will see the rain mix and change over to all snow as a cold front blasts through the area...Best moisture and forcing is off to the East....Still may be able to get a fast 1/2 to an 1 of snow...Winds will be on the increase like wise...10 to 20 MPH...Sunday will be cold with highs falling through the day as they head for a low in the teens once again, and winds 10 to 20 MPH with gust reaching up towards 30 MPH....Monday still could see a a few light snow showers around.....Monday night lows fall back into the teens after only reaching upper 20s to lower 30s for highs....Temps slow to warm to the lower 40s by Wednesday....
To sum it up...Short warm up, followed by more winter feeling airmas.....No spring big long lasting warm ups through this time frame.....
 
***LONG TERM FORECAST DISCUSSION APRIL 4TH THROUGH APRIL 14th***
 
Next chance of snow looks to come in around the 4th this looks to be a light event...April 5th/6th we see a stronger system pushing into the area...This could end up being an all rain event for the FA...We will have systems lineup one right after another through Tuesday the 9th could see more rain than snow, however we will have to watch to see how the profiles really setup and where they setup along with the track of each system...If they move more South we could be dealing will rain/snow events...The 10th looks really interesting....A system move into Southeastern WI, this will drag down more cold air....This will chance the rain over to snow in the early morning hours....Next chance of snow comes in about the 13th....Looks like more of a winter pattern setting up than spring.....Temps will avg slightly to way below normal through this time frame....
To sum this time frame up...
Colder than avg with above normal precip....More of a winter pattern than a spring pattern.....Winter 2012/2013 lives on....
If the CFS model is right we should start to see spring take over towards the latter part on mid April through the end of the month.....