||Observation (Click on links for photos)
||Preliminary Wisconsin DNR
reports for the gun deer season estimate the number of deer registered
at about 300, 000, about 8-9 % above last years hunt. That is a lot
of deer, but the estimate of total number of deer before the season
began was 1,400,000. That would leave 1,100,000 deer remaining, with
the potential to produce about 2 fawns per doe next Spring. A mild
winter could result in a deer herd even larger than that of Fall 2003.
||Here are three snapshots of
a prairie community
on UWGB's Cofrin Arboretum, from the end of last winter through summer
and into fall (today). Sometimes we forget how dramatic the changes
||UWGB's Prairie Pond has frozen
over again. A cold and windy day with a low temperature of 18 F.
||Rainy and windy weather and
the absence of snow may have hampered deer hunters in Wisconsin this
opening weekend of the gun deer season. Deer registrations are down
significantly in some northeastern counties.
Wisconsin DNR estimates
there are 1.4 million whitetail deer in Wisconsin. The gun
deer season begins Saturday (Nov 22). Concerns about danger to people
from chronic wasting disease in deer appear to have diminished,
as the number of registered hunters has increased compared to last
Today's high temperature of 62F ties the record
high for this date.
Here is the leaf color
change and leaf fall
sequence for the same green ash trees shown in yesterday's
leafout sequence. The full sequence occurs in 22 days, but most
of the color change and leaf fall occurred in just 7 days, from
Oct 8 to 15. It appears that the effective growing season for green
ash this year was roughly108 days (15.5 weeks) from May 27 to Oct
The weather has warmed considerably this week. This
is our third day of temperatures rising above 50F.
||Here is a photo sequence
of leafout for green
ash (Fraxinus pennsylvanica) on UWGB in 2003. Notice
that the full leafout occurred within 20 days and most of the development
occurred within 12 days, from May 22 to June 3. Tomorrow: leaf color
change for the same trees.
Here is the photo sequence
of fall leaf color change
for the same Red and white oaks shown yesterday. If you place
the cursor over the photo an icon will appear to allow you to enlarge
the photo. Most of the red oak's color change occurred over a 4
week period, but the white oak leaves changed color much faster
||Here is a photo sequence
showing leaf-out on red
rubra) and white oak (Q. alba) on the UW-Green Bay
Cofrin Arboretum last spring. Most of the leaf-out occurred within
about 2 weeks. Notice that on May 27 the red oak still has some of
the previous year's leaves on the branches. Tomorrow's entry will
present the fall leaf color sequence for the same trees.
||The high temperature in Green
Bay was 53 F today. The ice has melted on UWGB's Prairie Pond
(see Nov 8).
||More cold air. Today's low
of 13F was a record low temperature for this date in Green
||An overnight low temperature
of 11F in Green Bay. On UWGB's Cofrin Arboretum the "Prairie
Pond" froze completely over during the night of the 7/8.
Sometimes the ice cover melts one or more times before it finally
stays for the winter. Since 1996 the date to freeze and stay frozen
is usually mid-November (10-26), the earliest previous was Nov 10
and the latest was December 18(!) in 2001. [note, the
weather warmed up and the ice melted by the 14th]
Arctic cold air moves
into the Great Lakes area. The low temperature of 16 F in
Green bay is the lowest of this Fall to date.
Norway Maple (Acer platanoides) is
rapidly dropping its leaves in Green Bay.
are mostly off in some woods, especially where green ash and
box elder are abundant, but oaks
are still in good color in some locations and some trees in
the residential areas of the City of Green Bay still have good color.
The Green Bay weather station reported 1.51 inches
of total rain over the previous two days and just 0.1 inch of snow.
Some areas in northern
Wisconsin this morning were reporting as much as 5 inches of
new snow in the last 24 hours (Washburn in Bayfield County;
4.9 inches in Alvin, Forest County) with many stations in the north
reporting 2-3 inches. Green Bay received a few flakes, but mostly
rain--0.76 inches of precipitation.
The water level in Lake Michigan was down
10.68 inches compared to the same period last year (U.S. Army Corps
of Engineers). That is only 6.72 inches above the record low for
October (1964). Precipitation in the Lake Michigan basin was about
89% of average for October.
||A rainy morning in Green Bay
and reports of snow in Shawano and in the Fox Valley. The weather
forecast predicts 3-5 inches of snow today and tonight with winter
storm warnings for portions of northern Wis. Rain is predicted
for Green Bay.
A nice fall day. There
are still some good fall leaves in Door County, if you pick