Meteorological Analysis
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Juan had a complex origin that involved about 3 systems. On September 14th
a tropical wave moved off of Africa and continued west while raising little
suspicion. Convective activity increased significantly with this wave though on
the 20th, the wave was about 600 nm east of the Lesser Antilles at the time.
An upper low that was formed from Isabel's outflow then began to interact with
the wave, forming a mid-level circulation which began to rotate around the
upper level low. The mid-level circulation then interacted with a front, and a
low-level circulation formed on the 23rd. The low-level circulation then
developed organized convection and banding features, and it separated from
the front. This led to the formation of a tropical depression on the 24th about
300 nm SE of Bermuda. The depression continued to organize, and became
tropical storm Juan on the 25th. The speed of the intensification process then
picked up and Juan became a hurricane with an eye and eye wall structure
visible on the 26th. Juan moved pretty much due north after this, besides for
a brief NW movement caused by a ridge quickly strengthening to Juan's east.
Juan reached its max winds of 105 mph on the 27th with a pressure of 969 mb.
Juan then picked up speed and made landfall near Halifax, Nova Scotia on the
29th with 100 mph winds and a pressure of 973 mb. Juan made it across Nova
Scotia as a hurricane. Juan then entered the Gulf of St. Lawrence and
weakened into a tropical storm, shortly before being absorbed by an
extra-tropical low. Juan was the first hurricane to directly hit Halifax in 110 years.
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Casualty and Damage Overview
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4 deaths are attributed to Juan, as well as 4 indirect deaths. All of these
casualties were in the Canadian Maritimes. There was widespread wind damage
across Nova Scotia, as well as extensive surge damage in Halifax Harbor due
to the record 4.9 foot surge there. The Canadian Hurricane Center was
damaged due to this flooding.
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Imagery
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Tracking Data
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Hurricane Juan
Time Lat Lon Wind(mph) Pressure Storm type
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12 GMT 09/24/03 28.2N 62.4W 30 1009 Tropical Depression
18 GMT 09/24/03 28.3N 62.2W 35 1007 Tropical Depression
0 GMT 09/25/03 28.4N 62.0W 40 1006 Tropical Storm
6 GMT 09/25/03 28.8N 61.7W 45 1002 Tropical Storm
12 GMT 09/25/03 29.2N 61.4W 50 1000 Tropical Storm
18 GMT 09/25/03 30.4N 61.6W 60 996 Tropical Storm
0 GMT 09/26/03 30.9N 61.8W 65 992 Tropical Storm
6 GMT 09/26/03 31.1N 61.8W 70 990 Tropical Storm
12 GMT 09/26/03 31.8N 62.0W 75 987 Category 1 Hurricane
18 GMT 09/26/03 32.5N 62.0W 80 987 Category 1 Hurricane
0 GMT 09/27/03 33.3N 62.0W 85 984 Category 1 Hurricane
6 GMT 09/27/03 34.4N 62.2W 85 981 Category 1 Hurricane
12 GMT 09/27/03 35.2N 62.8W 85 979 Category 1 Hurricane
18 GMT 09/27/03 35.5N 63.2W 105 969 Category 2 Hurricane
0 GMT 09/28/03 36.3N 63.6W 105 970 Category 2 Hurricane
6 GMT 09/28/03 37.1N 64.0W 105 970 Category 2 Hurricane
12 GMT 09/28/03 38.5N 64.1W 105 970 Category 2 Hurricane
18 GMT 09/28/03 40.2N 64.1W 105 970 Category 2 Hurricane
0 GMT 09/29/03 42.8N 63.9W 100 972 Category 2 Hurricane
6 GMT 09/29/03 46.0N 63.8W 75 982 Category 1 Hurricane
12 GMT 09/29/03 49.8N 62.4W 50 995 Tropical Storm
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Tracking maps courtesy of NHC
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Selected Satellite Image
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