National Weather Service Issues Frost/Freeze Warning for Michigan, Wisconsin, Minnesota, Northern Illinois & Indiana, Eastern Iowa and North & South Dakota for Saturday and Sunday Night
Dark blue areas are freeze warnings and the lighter blue areas are frost advisories
http://www.weather.gov
NWS forecast content follows:
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
405 PM EDT Sat May 14 2016
Valid 00Z Sun May 15 2016 - 00Z Tue May 17 2016
...Heavy rain possible over parts of the Western Gulf Coast...
...Temperatures will be 10 to 20 degrees below average from the Northeast
to the Carolinas southwestward to the Central/Southern Plains...
An upper-level low over the Great Lakes will move just east of Maine by
Monday. The system will produce rain from parts of the Northeast to the
Carolinas and northwestward into the Great Lakes/Ohio Valley that will
move off the coast overnight Saturday. On Sunday, rain showers will
develop over the Great Lakes/Ohio Valley to the Northeast that will have a
strong daytime heating element to the areal coverage. Overnight Sunday,
additional upper-level energy will rotate around the upper-level low that
will produce rain over parts of the Upper Mississippi Valley/Upper Great
Lakes Sunday into Monday morning.
Meanwhile, another upper-level low will move onshore over the Pacific
Northwest that will move inland over the Northern Rockies by Monday
morning. The energy will produce rain over the Pacific Northwest Coast
through Monday while rain with embedded thunderstorms will develop over
parts of the Northern Intermountain Region and the Northern Rockies also
through Monday. Additionally, showers and thunderstorms will develop over
parts of the Great Basin to the Central Rockies and from the Southwest to
the Western Gulf Coast that will expand into the Central/Southern Plains
on Sunday into Monday. In addition, snow will develop over the highest
elevations of Wyoming.
Ziegenfelder
Graphics available at www.wpc.ncep.noaa.gov/...
I guess the conventional wisdom in Michigan that May 15 is the frost free date for gardening will have to be thrown out the window.
This late season freeze could be pretty hard on Michigan’s fruit growing belt along Lake Michigan.