Event Summary
A strong low pressure system and attendant cold front tracked across the central Great Lakes on December 11th, producing wind gusts in excess of 60 mph along with gale to storm force winds across Lake Huron, Lake St. Clair, and western Lake Erie. The initial impacts of the system were felt in the evening and overnight hours of December 10-11th, with heavy rain ahead of an advancing warm front. A few rumbles of thunder were heard across the area, but severe weather stayed well to the south (with a nocturnal tornado outbreak impacting the Tennessee Valley). As SE MI became further entrenched within the warm sector during the morning hours, temperatures soared into the upper 50s (even hitting 60 F in some locations). Detroit Metro Airport reached a high of 61 F, just 1 degree below the record of 62 F.
A cold front racing across lower MI marked the beginning of the strong wind event. A Wind Advisory was initially issued in the days prior, with high end gusts around 55 mph expected. As observations along/behind the cold front became available for the west side of the state, frequent gusts to 60+ mph prompted an upgrade to a High Wind Warning for all of southeast MI. Marine headlines were also in place: with Gale Warnings for Lake St. Clair and western Lake Erie, and Storm Warnings for all of Lake Huron. Peak wind gusts generally occurred in the 11AM-2PM timeframe, coinciding with the cold frontal passage. Widespread 50-60 mph gusts were observed, with isolated higher gusts up to 64 mph (measured at both Harbor Beach and Detroit Metro Airport). ​
Wind Reports
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 332 PM EST SAT DEC 11 2021 ...HIGHEST WIND REPORTS... LOCATION SPEED TIME/DATE LAT/LON ...MICHIGAN... ...BAY COUNTY... AUBURN 43 MPH 1147 AM 12/11 43.60N/84.10W BAY CITY 41 MPH 1045 AM 12/11 43.69N/83.92W ...GENESEE COUNTY... FLINT 63 MPH 1042 AM 12/11 42.97N/83.75W CLIO 44 MPH 1131 AM 12/11 43.15N/83.80W ...HURON COUNTY... HARBOR BEACH, MI 64 MPH 0136 PM 12/11 43.85N/82.64W PORT HOPE 54 MPH 1143 AM 12/11 44.02N/82.80W 3.5 SE RAPSON (MAWN) 52 MPH 0300 PM 12/11 43.81N/82.85W BAD AXE 51 MPH 1235 PM 12/11 43.78N/82.98W 1 ESE HURON CITY 51 MPH 1155 AM 12/11 44.02N/82.80W 1.4 SW KINDE (MAWN) 51 MPH 0200 PM 12/11 43.92N/83.01W 3.0 S CASEVILLE (MAWN) 45 MPH 1100 AM 12/11 43.90N/83.27W CASEVILLE 41 MPH 0225 PM 12/11 43.91N/83.38W ...LAPEER COUNTY... LAPEER 51 MPH 1255 PM 12/11 43.07N/83.27W ...LENAWEE COUNTY... ADRIAN 55 MPH 1114 AM 12/11 41.87N/84.08W JASPER 42 MPH 1128 AM 12/11 41.80N/84.04W ...LIVINGSTON COUNTY... HOWELL 46 MPH 1135 AM 12/11 42.62N/83.97W GREGORY 44 MPH 1206 PM 12/11 42.44N/84.07W HOWELL 43 MPH 1119 AM 12/11 42.59N/84.00W BRIGHTON 40 MPH 1218 PM 12/11 42.52N/83.79W ...MACOMB COUNTY... LAKE ST. CLAIR METROPARK 58 MPH 0125 PM 12/11 42.57N/82.80W DETROIT 46 MPH 1253 PM 12/11 42.52N/82.88W 2.1 SW ROMEO (MAWN) 42 MPH 0200 PM 12/11 42.78N/83.02W WARREN 40 MPH 0226 PM 12/11 42.51N/83.00W ...MIDLAND COUNTY... MIDLAND BARSTOW 52 MPH 0955 AM 12/11 43.67N/84.27W ...MONROE COUNTY... MONROE 55 MPH 1235 PM 12/11 41.93N/83.42W LAMBERTVILLE 41 MPH 1215 PM 12/11 41.73N/83.65W DUNDEE 40 MPH 1131 AM 12/11 41.96N/83.62W ...OAKLAND COUNTY... PONTIAC 59 MPH 1236 PM 12/11 42.67N/83.42W COMMERCE 58 MPH 0308 PM 12/11 42.55N/83.50W HOLLY 49 MPH 0101 PM 12/11 42.82N/83.68W OAKLAND 47 MPH 1129 AM 12/11 42.72N/83.15W TROY OAKLAND 46 MPH 0115 PM 12/11 42.55N/83.18W ORTONVILLE 43 MPH 0100 PM 12/11 42.85N/83.41W ...SAGINAW COUNTY... SAGINAW 61 MPH 1043 AM 12/11 43.53N/84.08W SAGINAW BROWNE 51 MPH 1135 AM 12/11 43.43N/83.87W ...SANILAC COUNTY... BROWN CITY 63 MPH 0122 PM 12/11 43.21N/82.98W PORT SANILAC 52 MPH 0200 PM 12/11 43.42N/82.54W 2.3 N SANDUSKY (MAWN) 43 MPH 0200 PM 12/11 43.46N/82.84W DECKERVILLE 41 MPH 1201 PM 12/11 43.50N/82.70W ...SHIAWASSEE COUNTY... OWOSSO 43 MPH 1235 PM 12/11 43.00N/84.13W ...ST. CLAIR COUNTY... FORT GRATIOT, MI 54 MPH 0124 PM 12/11 43.01N/82.42W PORT HURON 44 MPH 0115 PM 12/11 43.01N/82.42W SAINT CLAIR 43 MPH 0130 PM 12/11 42.82N/82.52W KENOCKEE 41 MPH 0216 PM 12/11 43.03N/82.69W PORT HURON 41 MPH 1155 AM 12/11 42.92N/82.52W ...TUSCOLA COUNTY... CARO TUSCOLA 53 MPH 1155 AM 12/11 43.47N/83.45W REESE 47 MPH 1231 PM 12/11 43.46N/83.68W 3.1 SE AKRON (MAWN) 47 MPH 0200 PM 12/11 43.53N/83.49W ...WASHTENAW COUNTY... ANN ARBOR 61 MPH 1124 AM 12/11 42.22N/83.73W GREGORY 42 MPH 1231 PM 12/11 42.38N/84.01W ...WAYNE COUNTY... DETROIT WAYNE 64 MPH 1051 AM 12/11 42.23N/83.33W DETROIT CITY AIR 61 MPH 0219 PM 12/11 42.40N/83.02W DETROIT WILLOW 60 MPH 1125 AM 12/11 42.23N/83.53W DETROIT GROSSE I 52 MPH 0115 PM 12/11 42.10N/83.15W 3.0 NE SOUTH ROCKWOOD (WEATH 41 MPH 0140 PM 12/11 42.09N/83.21W CANTON 40 MPH 1201 PM 12/11 42.31N/83.46W
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