Weather and Ice Presentation Great Lakes - Monday, February 8, 2021 Canadian Ice Service
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Weather and Ice Presentation
Great Lakes
Monday, February 8, 2021
© Canadian Ice Service
Presentation – Great Lakes
Purpose
This presentation has been prepared by the
Canadian Ice Service
for briefing purposes only.
All information presented herewith must not be used
for navigational purposes.
The content must not be further distributed.
©
#2
Ship Activities / Activités des navires
Navire / Dernier 24H / Présent 24H / Prochain 24H /
Ship Past 24H Present 24H Next 24H
CCGS Escort PRENTISS Escort ALGOCANADA Flood Control in area of
GRIFFON BROWN upbound with from X32 through Lake lower St. Clair River /
USCGC BRISTOL St. Clair to Detroit River St. Clair Flats
BAY in Lake St. Clair
CCGS Escort PRENTISS Flood Control in St. Clair Flood Control in area of
SAMUEL BROWN upbound in River. Escort lower St. Clair River /
RISLEY St. Clair River. ALGOCANADA from St. Clair Flats
Sarnia to X32
CCG CG942 Transit from Sarnia – Standby for Sarnia – Standby for
HELO Parry Sound Base to tasking tasking
Sarnia Airport
3
Ship Activities Continued
The ice plug in the St. Clair river remains a concern and ice flushing operations will continue as
required. Navigation of the area is feasible with icebreaker escort, and shipping may expect some
delays in this problem area.
CCGS SAMUEL RISLEY will head downriver this morning to conduct flushing operations and track
preparation in the problem area before escorting the ALGOCANADA down from Sarnia in the
afternoon. Risley will escort ALGOCANADA as far as Windsor. After completing escort, Risley may
proceed to Windsor city dock to take-on potable water.
CCGS GRIFFON will takeover the escort of the ALGOCANADA in the Detroit River and continue escort
towards Pelee Passage until ALGOCANADA is in workable ice conditions and may continue
unescorted towards destination Nanticoke. Griffon may return back to Windsor this evening for
scheduled fueling at 09:00 Tuesday at Sterling in Windsor. Next tasking will likely be to assist tug
MICHIGAN in the Western Basin.
USCGC MORRO BAY will transit this morning from Detroit River to the ice jam area in the SCR to
assist with flood control operations as required and escort assistance with SAMUEL RISLEY. Morro
Bay replaces Neah Bay for this operation.
Helicopter CG942 will be relocating from Parry Sound to Sarnia today.
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Presentation – Great Lakes
Weather
Warnings
Synoptic
Forecast
#5 ©
Marine Warnings
issued at 08:00Z
FS
G Gale-force 34-47 kn
S Storm-force 48-63 kn
H Hurricane-force > 64 kn
FS Freezing Spray
IP Ice Pressure
IS Special Warning
CL Rapid Closing of Coastal Leads
#6 ©
Public Warnings
issued at 13:00Z
Extreme cold
warning
Warning
#7 ©
Presentation – Great Lakes
Synoptic Situation
A broad ridge of high-pressure bringing cold, Arctic air is encroaching into
the Great Lakes region from the Prairies. Over the next few days the ridge
will build eastward. Tomorrow, a weak trough of low-pressure will pass
over Lake Erie. On Thursday and Friday, another weak trough is expected
to pass over the southern Lakes.
Air temperatures across the Great Lakes region are forecast to be near or
below normal values all week. Temperatures are especially cold in the
western Lakes.
©
#8
Synoptic Prognosis & Precipitation – This morning #9 ©
Synoptic Prognosis & Precipitation – This evening # 10 ©
Synoptic Prognosis & Precipitation – Tomorrow morning # 11 ©
Synoptic Prognosis & Precipitation – Tomorrow evening # 12 ©
Synoptic Prognosis & Precipitation – Wednesday morning # 13 ©
Synoptic Prognosis & Precipitation – Wednesday evening # 14 ©
Wind Forecast – This morning # 15 ©
Wind Forecast – This evening # 16 ©
Wind Forecast – Tomorrow morning # 17 ©
Wind Forecast – Tomorrow evening # 18 ©
This morning This evening
Lake Superior Wind
NW 15-20
W 20-25 W 15-25
Tomorrow morning Tomorrow evening
NW 15-20
W-SW 15-25 W 15-25
©
# 19This morning This evening
Lake Michigan Wind
W 10-15
W 10-15
VAR LIGHT
Tomorrow morning Tomorrow evening
W 10-20
W 15-20
NW 15-20
NW 10-15
©
# 20This morning This evening
NW 10-15
Lake Huron Wind
W 10-20
SW 15-20
LIGHT
Tomorrow morning Tomorrow evening
W 10-20
W 10-15
©
# 21This morning This evening
Southern Great Lakes
Wind
W-SW 10-20 SW 10-15
LIGHT VAR LIGHT
Tomorrow morning Tomorrow evening
VAR LIGHT W 10-15
N 10-15
W 10
©
# 22This morning This evening
1-2 m 1-2 m
Great Lakes
Waves
Tomorrow morning Tomorrow evening
1-2 m 2-3 m
1-2 m
©
# 23Daily Temperature Trend - Tendance journalière de température - Wind Fx - Prévision des vents
En vigueur -> 08/02/2021# 25 ©
Presentation – Great Lakes
Ice
Satellite Images
Charts
Pictures
©
# 26 ©Lake Superior
February 8, 2021, 1200Z
Fast ice RCM
RADARSAT Constellation Mission Imagery © Government of
Canada (2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT ©
Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale
canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation.
Thunder Bay
090W 085W
New ice
New and thin ice
Marquette
# 27 ©Lake Michigan
February 8, 2021, 1200Z
RCM
RADARSAT Constellation Mission Imagery © Government of Canada
(2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT ©
Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation
Medium lake ice 45N
Green Bay
Milwaukee
Thin and new ice
Chicago
# 28 ©Northern Lake Michigan
February 8, 2021, 1200Z
RCM
RADARSAT Constellation Mission Imagery © Government of Canada Fast ice
(2021). Fast ice
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT ©
Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale Escanaba
canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation
Medium and thin lake ice
Medium lake ice
45N
Open water
Fast ice
Green Bay
# 29 ©St Marys River / Straits of Mackinac
February 7, 2021, 1153Z
RCM
RADARSAT Constellation Mission Imagery © Government of Canada (2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT © Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation
Sault Ste Marie
Fast ice
Thin and medium lake ice
085W
Fast ice
Drummond Island
Thin lake ice Cheboygan
New ice
# 30 ©Lake Huron
February 7, 2021, 2315Z
RCM
RADARSAT Constellation Mission Imagery © Government of Canada (2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT © Gouvernement du
Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation
45N
Owen Sound
Open water
080W
Thin lake ice
Goderich
Sarnia ©
# 31Southern Lake Huron
February 7, 2021
MODIS – NASA Worldview
Clouds
Medium lake ice
Saginaw
Thin and new lake ice
Sarnia
# 32 ©St Clair/Western Basin
February 7, 2021, 1120Z
RCM
Brash ice (jam)
Detroit
Windsor
Medium and thin lake ice
Thin lake ice
# 33 ©Lake Erie
February 7, 2021, 2315Z
RCM
RADARSAT Constellation Mission Imagery © Government of
Canada (2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT ©
Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale
canadienne. Chatham-Kent
Do not use for navigation - Ne pas utiliser pour la navigation
Nanticoke
New and thin lake ice
Erie
080W
Cleveland
# 34 ©Lake Ontario
February 7, 2021, 1120Z
RCM
RADARSAT Constellation Mission Imagery © Government of
Canada (2021).
RADARSAT is an official mark of the Canadian Space Agency.
Imagerie de la mission de la Constellation RADARSAT ©
Gouvernement du Canada (2021).
RADARSAT est une marque officielle de l’Agence spatiale
canadienne.
Do not use for navigation - Ne pas utiliser pour la navigation
Kingston
079W
44N
Toronto
Hamilton
Rochester
# 36 ©# 40 ©
# 41 ©
# 42 ©
# 43 ©
Presentation – Great Lakes
Regional
Updated
on Wednesdays only
©
# 44# 46 ©
# 47 ©
# 48 ©
Presentation – Great Lakes
Useful Links
Presentation & Pictures
ftp://ftp.dfo-mpo.gc.ca/CCG_CNA/Ice-Briefing/GreatLakes/2020-21/
Marinfo
http://www.marinfo.gc.ca/en/general/accueil.asp
Canadian Ice Service
https://www.canada.ca/en/environment-climate-change/services/ice-forecasts-
observations/latest-conditions.html
©
# 49Presentation – Great Lakes
Questions
©
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