Monday, April 6, 2009

Cold warm than cold...Short/middle/long term Fcst

Forecast problems....How cold to keep temps today...How long to delay the warmer temps....Other than rather easy forecast as far as precip goes..Looks like a spring pattern setting up for the end of the work week into the weekend...Than cooling back to below Norms in the longer term FSCT......

CURRENT CONDITIONS......

Temps for the most part are in the middle to upper 20s...The Rice Lake 31° reading is bogus...The heat island effect playing havoc with that reading,just like yesterday when that had a high of 44...Here at the office 39.9 and our low here so far as been 25.7..Seems like when the winds are out of the North the heat island effect cranks right up...So everyone needs to keep that in mind....Most stations are reporting ptcldy skies this morning..Satellite confirms this rather well...What is interesting we have a flow right off of Lake Superior so my Central and Eastern areas in Barron County and into Rusk County,and points North are seeing that effect from time to time.In fact we can see the change starting to take place up around my far Northern areas as clouds have a SE movement to them..WV also showing that rather well...This should change as winds become more Northwest this morning....Speaking of winds...Wind range from 5 to 13 MPH across the FA...

SFC ANALYSIS.....

This morning's SFC weather map show a low pressure that was reasonable for yesterday morning's snowfall,well to the East of the area..Centered over Central OH...Meanwhile there is a 1038 MB high pressure centered just North of the MT/ND border...Pressure gradients have increased over the FA yesterday and still hold strong this morning...See above for details on this...

TODAY THROUGH TUESDAY....

Cold air is the rule for this time frame...By 12z today 1038 MB high pressure builds South into ND and SD..Meanwhile 992 MB low pressure is forecasted to lift into NE OH..Pressure gradients between these two system will crank back up today to produce winds in the range of 10 to 20 MPH with gusts up to 25 MPH..CAA will wring out what little moisture is left..So look for a ptcldy to mocldy day...There may be a few flurries around from time to time...Not a big deal...Highs today shall range from the middle 30s to upper 30s just like yesterday...With winds howling out of the N/NW it will feel like Nov not April...Temps still running well below norms for this time of year....Getting to sound like a stuck record...Tonight Low pressure moves into NY,High pressure builds into NE as it does it does weaken to around 1031 MBs..Ridging of high into the area will cause winds to lighten up some as pressure gradients decrease...5 to 10 MPH or so should work out fine....How low to go with over night lows....This will depend on if we can rid our area of clouds and if winds drop over more...For now I'm going to run with lower 20s across the broad..May have to adjust them down more this afternoon...Will watch the trend in the clouds and winds...Tue looks to be a quite day as the FA will be under high pressure/ridging high pressure...However temps will still be well below norms even under mostly sunny skies....Low Tue night will range from the lower 20s to the middle 20s....

WEDNESDAY THROUGH SUNDAY......

NW flow will still keep temps down on Wed....Though will be warmer than what have seen in some time....Highs on Wed and Thur should be in the middle 40s to around the upper 40s...Will still hold onto the lower to middle 20s for lows right through Thur night...Friday....High will warm into the upper 40s across much of the FA..Lows middle to upper 20s looks to be the way to run this race....Sat,and Sun..Southerly winds finally take over the FA this will usher in warmer air with temps lower 50s on Sat and middle 50s by Sun...Lows upper 20s to lower 30s....Could this be what everyone has been waiting for ? Will spring stay this time? Lets find out in the longer term FCST.....

LONGER TERM....MONDAY APR 13 THROUGH WED APR 22......

First off let us talk about temps...Then secondly we will talk about precip....
Temps do cool back into the 40s for the start of this period,and hold that way for the most part...Lows in to middle 20s to lower 30s through out this time frame...So if long range computer models are right we will fall to below norms once again......Lets see what the precip dept is up to,since the temp dept can't seem to do their jobs very good this spring....In the pecip dept we see some what of active period.....Mon we see a low pressure moving into SE WI...This should spread in rain into the area...Models want to keep some precip in the are right through Wed morning...We get a break from Thu through Sat before our next system is forecasted to bring precip back into play for Sun into Mon morning...Then another break to finish off the time frame....
So looks like spring will be on vacation once again in the longer term as temps remain below norms...