Tuesday, June 29, 2010

Forecast discussion for Western/Northwestern WI

Nice stretch of dry weather on tap through Friday...Temps will be a little chilly mainly today and tonight...Hot and humid air returns to the FA by Friday lasting through the 4th of July weekend, along with the warmer temps and higher dewpoints will also come chances of showers and thunderstorms this weekend.


SFC OBS this morning show free AC across the areas...Temps @ this 7 AM hr are in the lower to middle 50s...Middle to upper 40 in my Northern FAs...Dewpoints in the middle to upper 40s... Winds are out of the North/Northeast from 5 to 7 MPH....All stations reporting sunny skies...


A 1024 MB high pressure has built into the area.. This is forecasted to camp out over the upper Midwest/Great lakes area... This insure the FA Sunny skies through Friday... Overnight lows will be rather chilly tonight... most areas middle 40s...Some upper 30s may be found in our colder spots... Tomorrow morning the high pressure starts to drift East/Southeast toward Southern Lake MI this will set up a return flow so temps on Wednesday shall be warmer middle 70s with some areas reaching for the upper 70s.. Meantime we see a 1001 MB low pressure Northern WY this will also aid in warmer temps.., Thursday the high pressure builds to around 1027 MBS as it is forecasted to be over SW MI... Low pressure out in WY moves into far Western SD... Expect temps to warm into the 80s Friday the high pressure system is forecasted to be centered around Northeast MI, meantime Low pressure over the WY/far Western SD deepens to around 996 MBS as it pushes towards far Northern ND.. The 4th of july weekend still somewhat remains up in the air on showers and thunderstorm chances.. Dependant on what tropical storm Alex does will play a role on deep moisture return into the area.. So all eyes on Alex over the next few days...As of right now am banking on a cold front to start to push into the area by the weekend this should start to flatten out the ridge we are under...Should see showers and thunderstorms break out ahead of and along the frontal boundary...Should be a slow mover so right as of now the best way to run with this weekend's forecast is to paint showers and thunderstorms in right through Monday... Again we will have to watch Alex to see what kinds of effects Alex will have on our weather.... Nevertheless starting Friday and lasting through Monday temps will soar into the middle to upper 80s.. If we see more sunshine on Saturday and Sunday we could be talking temps in the lower 90s...Yes more humid air also in the cards...