Newfoundland Igor Report
Posted by Anung Mwka on 9/23/2010, 7:53 pm
Event (front/hurricane) total rainfalls from official and other
sources:
--------------------------------------------------------
St. Lawrence                      238 mm
Bonavista                         200+ mm (* see note below)
Lethbridge (private station)      194 mm
St. Pierre/Miquelon               160 mm
Pouch Cove                        142 mm (ham radio network)
St. John's west                   134 mm
Bay d'Espoir (generator stn)      124 mm
Gander (airport)                  124 mm
St. John's (airport)              120 mm

Cape Race                          54 mm (** see note below)
Burgeo                             41 mm

100 mm = 4 inches, 200 mm = 8 inches

*  stopped reporting rainfall amounts at 1:30PM Tuesday however
significant rainfall still occurred for several hours after based on
radar and citizen reports.

** did not report between 1:30 PM and 5:30 PM on Tuesday as igor was
moving away.

-> other private stations that were within the heaviest rainfall
Zone have not yet come in with their total amounts - they include
brownsdale and port union in the Trinity bay area east of Bonavista.

Peak wind speeds from official and other sources:
--------------------------------------------------------
Cape pine                  172 km/h * (122+ km/h sustained)
Sagona Island              163 km/h   (113 km/h sustained) ***
Bonavista                  155 km/h   (122 km/h sustained) ***
Pouch Cove                 147 km/h **
Pool's Island              146 km/h   (104 km/h sustained) ***
St. John's (airport)       137 km/h   (92 km/h sustained)
Grate's cove               135 km/h
St. Pierre                 135 km/h   (91 km/h sustained)
Argentia                   132 km/h
Twillingate                131 km/h
St. Lawrence               124 km/h
St. John's west            117 km/h
Winterland                 111 km/h
Englee                     111 km/h
Gander                     109 km/h
Cape Race                  106 km/h
Burgeo                     100 km/h
Stephenville                98 km/h
Port aux Basques            95 km/h
St. Anthony                 81 km/h

*   private station southwest of trepassey on Southern Avalon.
**  ham radio network
*** sustained wind is the average wind speed over a 10 minute period.

-> category-1 hurricane force wind is 118 km/h, category-2 is 155
km/h and category-3 is 178 km/h.

-> Cape Race data not yet known since the station went offline
During the period of extreme winds.

Marine/buoy data:
Buoy    wind gust       sig/pk wave     lowest pressure
--------------------------------------------------------
44139   138 km/h        9/17 m *        970 MB
44251   135 km/h        8/16 m          952 MB
44138   123 km/h        13/25 m         957 MB
44140    98 km/h        13/21 m         976 MB
44255    90 km/h        4/7 m           985 MB

-> wave units are in meters. 'sig wave' basically represents the
average wave height and 'pk wave' represents the maximum wave height.

-> unit of pressure (MB = millibar) used commonly in meteorology.

* data record from this buoy actually indicates a Max of 28 m which
will require further analysis to verify.

-> a storm surge of 70 to 100 cm was predicted and observed from
Bonavista southward to Argentia around the Avalon Peninsula.

-----------------
So two hurricanes to hit Canada this year now... although Igor wasnt a direct hit. Full text can be found here:  ... they tend
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Newfoundland Igor Report - Anung Mwka, 9/23/2010, 7:53 pm
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