All Hazards NOAA Weather Radio | Live Chicago Weather Updates
The lack of a blocking pattern and +AO/NAO phases are just a few amongst other mechanisms to blame for the persistent mild weather pattern regime millions of Americans have been experiencing across the eastern two-thirds of the nation. Today, we recorded our 20th day this month of warmer than normal temperatures. To date for the month, high temperatures are running about 6.7 degrees warmer than normal. The mild weather has resulted in a slow start to the winter season. For the month of December, only 1.7″ of snow has fallen at O’Hare, which is 5.5 inches below the normal and is a sharp contrast from the 16.2 inches recorded here just a year ago. Despite the slow start, there are some indications that the mild weather pattern may begin to weaken and turn colder towards the third or fourth week in January.
In the near term, there are two disturbances that will bring wet weather to the area. The first will come Thursday afternoon and Friday. The second on the night of New Year’s Eve. The first disturbance is warmer and is indicating a rain. The second disturbance is cooler and is signaling rain that will mix or change over to light snow New Year’s morning. Temperatures will remain above normal to finish out 2011. Wednesday will be cooler than today with the help of a northerly wind component and clouds.
Wednesday: Mostly cloudy with some peaks of sun during the day. Highs in the mid 30s. Winds becoming southwest 5-15 mph.
Thursday: Mostly cloudy with a chance for rain late. Highs in the mid 40s. Winds southwest 10-20 mph with gust as high as 30 mph.
Friday: Partly sunny with a chance for rain. Highs in the mid 40s. Winds west-southwest 10-20 mph becoming northwest 10-20 mph.
Saturday/New Year’s Eve: Partly cloudy and windy. Clouds increase in the afternoon/evening. Rain develops late. Highs in the upper 40s to lower 50s. Winds southwest 15-25 mph with gust as high as 40 mph.
Sunday/New Year’s Day: Mostly cloudy and windy. Temperatures falling during the day. Rain mixes or changes over to light snow during the morning hours. Highs in the lower 40s. Winds west-northwest 15-25 mph with gust to 45 mph.
Monday: Mostly sunny and not as windy. Highs in the mid to upper 30s. Winds northwest 5-15 mph.
Tuesday: Mostly sunny and warmer. Highs in the lower 40s. Winds southwest 5-15 mph.
8-15 day outlook (Long-range Forecast
Wednesday Jan 4: Highs in the 40s.
Thursday Jan 5: Highs in the 40s/50s.
Friday Jan 6: Highs in the 50s.
Saturday Jan 7: Highs in the 40s.
Sunday Jan 8: Highs in the 30s/40s.
Monday Jan 9: Highs in the 30s/40s.
Tuesday Jan 10: Highs in the 30s/40s.
Wednesday Jan 11: Highs in the 40s.
Thursday Jan 12: Highs in the 40s.
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