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Cooler Temperatures

We had .11 of an inch of rain overnight and .14 of an inch yesterday, bringing our total to .69 for the month.  Our high temperature was 77° yesterday.

Weather History

1869: It was the second frosty morning in a row as temperatures dropped to near or below freezing. Lansing recorded a low of 31 degrees, after a low of 27 degrees on the 5th which is the coldest ever recorded there in the month of June.

1917: A violent tornado struck the town of Springport in Jackson County, killing two people. About 35 homes were destroyed.

On June 6, 1903, the record for the greatest amount of precipitation for the month of June in Detroit was reached, with a rainfall estimate of 3.07 inches. The normal monthly precipitation amount for the month of June is 3.55 inches. In just one day, the monthly average was almost reached!

On June 6, 2008, widespread severe weather was reported across the Tri-Cities, Thumb, and Flint areas. There were 24 reports of hail and wind damage from the storms with a measured 71 mph wind gust from a spotter in Howell.

Also on June 6, 2010, a strong low-pressure system tracked through the Detroit Metro area during the early morning hours, spawning three tornadoes south of I-94, with flash flooding occurring over Washtenaw and Wayne counties as 2 to 4 inches of rain was recorded. The two tornadoes which occurred over Monroe County damaged a total of 311 buildings. Five single-family homes were destroyed. Major damage occurred at 34 structures. Minor damage was observed at 74 structures, with 198 other homes affected needing mostly cosmetic repairs. The village of Dundee was hardest hit by the EF2 tornado.

1816: The temperature reached 92 degrees at Salem, Massachusetts during an early heat wave, but then plunged 49 degrees in 24 hours to commence the famous “year without a summer.” Snow fell near Quebec City, Quebec Canada from the 6th through the 10th and accumulated up to a foot with “drifts reaching the axle trees of carriages.”

1894: One of the greatest floods in U.S. history occurred as the Willamette River overflowed to inundate half of the business district of Portland, Oregon. The river crested at 33.5 feet, the worst flood ever recorded in the city. Click HERE for more information.

Forecast Discussion

- Scattered Showers Thursday and Friday

An initial wave of showers is crossing the CWA ahead of a cold
frontal boundary this morning providing light (under 0.1 inch)
rainfall. Enough instability exists for some scattered thunderstorms
up towards Newaygo/Ludington but any thunderstorms will be just
garden-variety storms given low instability and no deep-layer shear.
These showers will clear the area around daybreak as the front
passes through.

The area generally remains dry through the mid-afternoon hours.
However, the progression of a -10C to -15C mid-level cold pool
associated with a 500mb trough should be enough to ignite scattered
instability-driven showers across the northern 2/3 of the CWA with
the greatest concentration near US10 where the heart of the cold
pool is. Highs will be slightly below normal for this time of year
ranging from around 70 near US10 to the mid 70s near I94.

Instability driven showers continue Thursday night and into the
start of Friday as the upper-level cold pool remains in the region.
However, by Friday afternoon showers diminish as the upper-level low
and associated cooler air push off to the east. Highs Friday will be
in the mid to upper 60s.

- Some Showers Possible Saturday; Likely Drying Out Sunday

Good model agreement exists regarding upper troughing into the
weekend. This will ensure cooler than normal temperatures along with
some diurnal showers on Saturday and perhaps a few thunderstorms
(less likely). A notable disparity exists with how the models are
handling 850 mb winds across the Midwest and Great Lakes Saturday
morning through Saturday night. The 00z GFS follows previous runs in
showing a much stronger and more convergent low level jet over the
region 12z Saturday through 00z Sunday, helping drive greater
coverage of showers. The GEM and ECMWF do not show this, and their
respective ensemble suites show little in the way of precipitation
Saturday but do have some increase in precipitation coverage
Saturday evening and Saturday night. While the NBM POPs on Saturday
(30-40%) may be a touch high due to the GFS/GEFS influence, will
maintain those for now and see how the deterministic and ensemble
runs trend for precip coverage. The latest 00z guidance favors
Sunday largely drying out aside from an isolated shower possible
near US 127 during the afternoon.

Temperatures over the weekend will be cooler than average, with mid
to upper 60s north of I-96 and upper 60s to low 70s south.

- Steady Warming Trend Next Week & More Dry Than Wet

Model guidance favors incremental warming from Monday through
Thursday (and beyond). A shortwave trough is forecast to move
through the Great Lakes region late Tuesday into Wednesday. Some
increase in low level moisture and surface dew points is shown.
There is at least a low threat for some showers for that time
period, but probably not enough instability forecast to include
mention for thunderstorms.

850 mb temperatures should be climbing up especially from mid to
late next week. GEFS/ECE/CMC ensemble suites largely agree on this
point. This is thanks to an increasing prospect for rising upper
heights across our part of the country. This far out, the degree of
height rises can be pretty iffy given unresolved upper waves that
can dampen out those heights. However, confidence is growing in
temperatures reaching the 80s by late next week, and some ensemble
guidance (ECE/CMC) supports the potential for 90s along with
humidity as we enter into the heart of mid June.
newest oldest
Rocky (Rockford)
Rocky (Rockford)

Wow a multi day stretch of below normal temps! Incredible!

Mr. Negative
Mr. Negative

Ada – not enough rain drops to notice. It feels as though the traditional June drought is settling in. Where did I put the sprinklers?…

Kyle (Portland, Ionia County)
Kyle (Portland, Ionia County)

Two tornadoes were confirmed in Michigan yesterday. Think it was an EF-0 near the Roscommon/Crawford County line and an EF-1 in the suburbs of Detroit.


Wow another tornado confirmed in Michigan yesterday. And NWS GR saying 90’s could be upcoming!


.3 in the gauge near Hamilton.


The overnight low here in MBY was 59 there was just 0.03” of rainfall overnight. At the airport there was 0.05” of rainfall and the overnight low was 60. At the current time it is clear and 60 here in my yard.


The official H/L yesterday at Grand Rapids was 79/60 there was 0.10” of rainfall the sun was out 29% of the possible time. The highest wind gust of 37 MPH was out of the W. For today the average H/L is 77/56 the record high of 95 was set in 1925 the record low of 37 was set in 1958 the record warm low of 74 was set in 2008. Last year the H/L was 78/53.

Mark (East Lansing)
Mark (East Lansing)

We got a soaking rain about 60-90 minutes ago. Nothing but blue sky now. Humidity is gone. It will be nice to be able to open the windows again.