Overview
An upper level wave brought overachieving snowfall amounts to southern portions of Southeast Michigan Sunday afternoon and overnight into Monday morning. This convective snow event impacted Ann Arbor and up through most of metro Detroit, along with southern Oakland County where 3 to 6 inches fell. The bulk of the snow occurred Sunday afternoon into the evening where peak intensities likely reached two inches per hour. The snow intensified along the nose of a 130 kt mid-level jet and the lead edge of a mid-level positive potential vorticity feature. Satellite apperance also suggested that a gravity wave was highly influential. This type of event is always a challenge to forecast where exact snowfall amounts will fall given that certain factors have to come into play at the same time.
Snowfall Totals
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Radar
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Radar loop from 10:30 AM Sunday through 6 AM Monday (Loop courtesy of Iowa Environmental Mesonet) |
Storm Reports
Public Information Statement...Storm Totals
National Weather Service Detroit/Pontiac MI
903 AM EST Mon Feb 18 2019
STORM TOTAL SNOW REPORTS
Location Snowfall Duration
(Inches) (Hours) Lat Lon
...Genesee County...
4 N Burton M 3.1 24 43.05N 83.62W
Flint M 3.1 18 43.02N 83.69W
...Lenawee County...
2 WNW Tipton M 3.1 24 42.03N 84.10W
...Livingston County...
1 NE Howell E 3.6 14 42.62N 83.92W
Pinckney M 4.2 15 42.45N 83.95W
...Macomb County...
4 NNW Richmond M 3.8 24 42.86N 82.78W
Warren M 3.8 17 42.49N 83.03W
Sterling Heights M 4.0 12 42.58N 83.03W
2 E Utica M 5.0 24 42.63N 82.98W
Shelby Township M 6.8 17 42.67N 83.03W
...Midland County...
Oil City M 1.5 24 43.61N 84.59W
...Monroe County...
Dundee M 1.2 24 41.96N 83.66W
...Oakland County...
Troy M 3.8 17 42.58N 83.14W
Lake Orion M 4.2 24 42.78N 83.24W
4 E White Lake M 4.6 18 42.65N 83.43W
Troy M 4.7 17 42.58N 83.14W
2 NNE Wixom M 5.4 13 42.55N 83.52W
Farmington M 5.6 24 42.46N 83.38W
Berkley M 6.2 16.5 42.50N 83.19W
...Saginaw County...
Chesaning M 1.7 24 43.18N 84.12W
...Sanilac County...
Lexington M 2.0 24 43.27N 82.53W
...Shiawassee County...
Owosso M 3.0 24 43.00N 84.18W
...Washtenaw County...
4 SW Saline M 3.0 24 42.13N 83.84W
Manchester M 5.0 24 42.15N 84.04W
Ann Arbor M 6.5 24 42.28N 83.73W
...Wayne County...
Romulus M 2.1 18 42.22N 83.37W
Garden City M 4.0 13 42.33N 83.33W
Northville M 5.5 10 42.44N 83.49W
M = Measured
E = Estimated
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