Yesterday we had a trace of wet snow with a high of 38° – the sun peeked out a couple of times during the late afternoon. We may see a few lingering rain/snow showers through the morning with the persistent cloud cover hanging on through the day. A warming trend is in store with temperatures near 40 today rising to the low 50s for Friday and Saturday. We should see dry conditions through Friday night.
Weather History for SW Michigan
1958: Arctic air settles into Lower Michigan during one of the coldest December on record. High temperatures are only in the teens on this date. More than two feet of lake effect snow piles up at Muskegon during the first half of the month.
Weather History for SE Michigan
On December 6, 1998, the temperature rose to 69 degrees in Detroit. This set the record for the maximum temperature for the month of December in Detroit. This was followed by severe thunderstorms and wind damage across Southeast Michigan. The majority of the severe weather occurred near or south of Interstate 69. The most notable exception to this was a swath of wind damage across southern Sanilac County, from Marlette to Lexington. Barns and silos were destroyed near Marlette, and a home was deroofed.
U.S.A and Global Events for December 6th:
December 6, 1913:
A snowstorm from December 1st through the 6th dumps a record total of 45.7 inches in Denver, Colorado. This storm produced the most snow ever recorded in a single Denver snowstorm.
December 6, 1970:
The National Christmas tree in 1970 was a 78-foot spruce from South Dakota. On the way to Washington, the train carrying the tree derailed twice in Nebraska. On the weekend before the lighting event, the tree toppled in gusty winds and required new branches to fill it out.
A few light snow showers and flurries will continue to develop through the morning with h8 temps down around -8 C yielding delta t/s in the middle teens. Precipitation will taper off toward midday as deeper moisture decreases and h8 temps begin to moderate. Dry wx is expected for most of our area tonight. A mid to upper level disturbance passing by well to the north to ne of our area may bring just a few light mixed light rain/light snow showers to our ne fcst area. Milder and dry wx is forecast for Thursday. A fair amount of sun in conjunction with increasing sw flow waa will help to boost max temps well into the 40s. The latest 00Z deterministic runs of the ECMWF/GFS/Canadian have all changed their tune quite a bit as far as the late weekend weather goes. The longwave trough which digs over the center of the nation is now shown to be a bit more progressive and less amplified so the sfc frontal zone just drifts east through Michigan with no notable sfc low developing along it. This scenario would mean a round of rain showers Friday night through Saturday night ahead/along of the front, followed by some light lake effect snow showers in the cold advection behind the front Sunday into Monday. Ensemble 50th percentile QPF amounts have lowered, as well as the threat of stronger winds. That said there are still a few (minority) ensembles members which support the idea of a decent sfc low developing along the baroclinic zone although that number is shrinking in the new 00Z data. A few members are also still putting down a stripe of synoptic snow through the area but it should be noted that the EC ENS 90th percentile snow amounts have lowered considerably and the prob of >6" is now less than 10 percent. So while overall fcst confidence still remains relatively low for later in the weekend, the risk of any higher impact weather is definitely decreasing in the new 00Z 12/6 data. Otherwise confidence is high regarding the unseasonable warmth preceding the frontal passage, with temps Friday expected to be in the 50s and even a decent potential for sunshine. Similar highs are possible on Saturday as well, especially over ern sections, depending on frontal timing and shower coverage.