Studies on water movements and sediments in Southern Lake Michigan : part 1[-3] ... / by John C. Ayers.

The wind during this period was3 June S 4 - 8 knots
4 June NW 6 k to NE 5-12 k (W during the night)
5 June light sea breeze.W during the night)
6 June SW to SE 4 k to SW turned N during the night)
7 June N 8-10 k
Dropue run; 20-21 June 1963 (Fi. 3 This was a radio
drogue run, carried out under severe conditions to assess the
sturdiness of the drogue radio transmitters.
During the evening of 19 June a severe squall and frontal
passage occurred at Chicagoo During and after the frontal
passage winds up to fifty knots were reported. During the
night of the 19th the wind slowly tapered off, but large seas
were built up.o Wind and seas slowly moderated during the 20th
and 21st.
At 1420 on 20 June two radio drogues, #11 at 20 feet and
#IV at the surface, were set at 4150.1% 87029,5e. At the
time of setting the wind was from the north at 16 knots and
seas estimated to be six feet high were running.
After returning to Chicago harbor, the drogue transmitters
were heard still functioning at 1620 and at 1820.
On 21 June search for the drogues was carried out under
winds of 7-10 knots and in 3-4 foot seas. At this time drogue
IV was transmitting a weak and fuzzy signal that was homed on
with difficulty but which did lead us to the drogue. Recovery
was made at 1217 Just outside Indiana harbor at 41042.2,
87026o31.
Inspection of the recovered drogue showed that the transmitter's whip antenna had broken off; the transmission heard
was from a stub of the antenna-feed wire.

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