Local Forecast Discussion
Forecast Discussion for December, 7th 2013
Make sure to wear a night cap to bed tonight!
The clouds from Friday will stick with us throughout the morning on Saturday for the Ann Arbor area. High pressure will begin to center it’s self over the areae forcing lingering clouds to move off to the east, trailing a weakening low pressure system that is approaching the east coast. As the strong high pressure system moves in, skies will clear up, but not without consequence.
Cold air will return to the area with a daytime high of only 26°F. Winds will shift from the NW to the WNW direction into the evening hours, and speeds will diminish to almost nothing into the late night hours, helping to reduce the influence of any possible wind chill that would add to an already cold night. Overnight on Saturday, temperatures will be very, very cold with one model yielding an overnight low of 8°F.
Expect temperatures to fall to at least 14°F with a likely low around 11°F. Considering the cold air moving into the area during the day on Saturday, combined with the lack of insulating clouds overnight, it is feasible to see a low for the evening as low as the current forecasts. It may not be a bad idea to sleep in on Sunday and wait until 10am to start your day when temperatures are restored to the 20s.
Good luck on finals!
At the Ann Arbor Airport
|Dew Point:||7°F (-14°C)|
|Relative Humidity:||73 %|
|Mean Sea Level Pressure:||1036 mb|
|Wind Speed:||3 mph (2 m/s)|
|Observation taken at 131208/0900 (UTC)|
Selected Cities Forecast
- Normal High:
- Normal Low:
- Record High:
- 62°F (1998)
- Record Low:
- -4°F (1885)
A touch of snow....
The first taste of measurable snow fell across southeast Michigan during the early part of this month, a stark reminder that Winter is not far away. Overall, it has been a rather pleasant autumn with near aveage conditions across southeast Michigan. For the month of October, the observed monthly averages at the Atmospheric, Oceanic and Space Sciences Cooperative Observation Station were: maximum temperature (62.3F), minimum temperature (44.0F), with 3.22 inches of melted precipitaiton. The observed temperatues were very close to the climatological averages for the period 1980-2010: maximum temperature (61.8F) and minimum temperature (42.4F). The biggest departure was noted in the precipitaiton category, with the observed October melted precipitation of 3.22 inches outpacing the climatological average of 2.83 inches for the month.
It would appear that our "near average" conditions can be linked to the fact that we continue to experience ENSO-neutral conditions in the equatorial Pacific. ENSO is one of the major forcing mechanisms for short term climate and ENSO-neutral conditions tend to keep us near our climatological average conditions. The NOAA Climate Predication Center suggets that these ENSO normal conditions are likely to persist well into Calendar Year 2014.