Wednesday, September 30, 2015
It's a Bird, It's a Plan, It's an Anticyclone!
We had quite the warm weekend, but things are cooling down drastically. We experienced some cooler weather on Tuesday, but the temperature is suppose to get down into the low 60's, and even high 50's (degrees Fahrenheit)! We experienced a strange rainstorm which brought 2 inches of precipitation with it, but the rest of the week is looking dry. It looks like Fall is right around the corner!
Wednesday Night. Clear. Low near the lower 40's (wow!)
Thursday Night. Still Clear. Temperature getting down into the lower 40's.
The presence of a trough north of Wisconsin is the reason why Wisconsin is getting a lot cooler throughout this week. The winds flowing upstream between the ridge and the trough are bring the cooler airs from the northern parts of Canada southward. This trough will move eastward throughout time, and downstream of the trough, the height contours become very meridional and the upper level winds become very strong. Following the trough is a weak surface anticyclone that was present in North Dakota/Minnesota. However, as time will progress and as the trough moves eastward, the anticyclone will follow the trough and strengthen dramatically, reaching a pressure of around 1046mb!
It's important to note that Tropical Storm Joaquin is present off the southeast coast of Florida, but it's difficult to predict where it will hit land. Lastly, there's a huge trough over the south coast of Alaska that a strong surface cyclone is associated with. However, due to curvature and the physical features along the coast of British Columbia, it will become somewhat stationary along the coast. (but not weaken!)
Nicholas J. Vertz