Friday, December 26, 2008

Forecast/temp conversion lesion

No major weather headaches in the short and medium periods...As a weather pattern change is in the works,after seeing very cold air and snow over the last 3 to 4 weeks...
Analysis...
Strong Southerly winds have brought much warmer air into the FA over the night time hours...So light snow moved through last evening out ahead of the push of warm air....Not much snow to talk about with that...
Today through Sunday....(short term)
Really not to much to talk about,Southerly winds will keep bring in warm air.Temps today could reach into the lower 30s...I think middle 30s are out of the question with the deep snow pack,however some of our warmer areas could hit the middle 30s ...Low pressure over SD is forecasted to move to push into North Central MN by 06z Saturday...This will keep the chance of light mixed percip around the area through Saturday night...As this low will drag a cold front through the area,however won't be like the last cold fronts as the air behind this one is from the Pacific..Saturday night temps to take a dive into the single digits above 0...Sunday I have knocked off a few degrees from model guidance so middle to upper 20s should play out rather well..
Monday through Wednesday...(middle term)
For the most part this period looks to be rather quite,however one little system may brush the FA with some light snow around the Monday/Tuesday time frame...ATTM does not look like nothing much to talk about with this system....Temps will remain on either side of the norms...Thanks to the deep snow pack temps won't get out of hand going to way above norms...Tuesday night into Wednesday night does look cooler as a cold front pushes through....Some hints that a piece of Arctic air may try to break off and head South over the FA.....
Longer term..
We will be watching a storm system for the New Years Holiday,Have been seeing with each model run the system is more South of the FA...However we have seen this many times this far out in the forecast cycle...Also looks like the first part to middle of Jan we will be tossed right back into the Arctic air....Still to early to tell how cold it will be...Long range models showing temps of - 8 c to -20 C common through the period..With temps warning to around -8c to -4c by the end of the period..Temps in c would translate to.... -4c = 24.8f -8c = 17.6 f -20c = -4 f......
Lets talk about how to convert temps...
Let convert temps from Celsius to Fahrenheit...
It's a rather easy process...All you need to do is take the Celsius reading multiply by 9 then divide by,then add 32...This will give you your reading in Fahrenheit...Lets try it....
Let say the Celsius temp is - 32....ok so we times that by 9 which = -288 divide that by 5 that =
-57.6 + 32 = -25.6....So remember this equation....(°C x 9/5) + 32 = °F...
Now if we wanted to convert Fahrenheit to Celsius we would use the following equation...
(°F -32) x 5/9 = °C....SO there you have it a fast learning lesion on temperature conversion.. To really understand the computer models one has to know how to convert from c to f...If not one will miss the finer details which will cause the forecast to bust...