Sarnia, Ontario

8:30 AM EST on February 09, 2012 (GMT -0500)
Elev: 594 ft
Lon: 82.3° W
Lat: 43.0° N
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Active Advisory: Special Weather Statement
Tropical Weather: Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Weather Underground Forecast for Thursday, February 09, 2012.

A disturbance dropping southeastward across the Great Basin will reach the southern Rockies on Thursday. The system will kick up light snow showers in the Central and Southern Rockies. Snow accumulation is expected to fairly light, with only an inch or two at best over the San Juans and

southern Sangres mountains. Meanwhile, another disturbance moving out of northeastern Mexico will move into Texas. This energy will interact with moisture from the Gulf of Mexico will produce light rain showers in the Southern Plains. Elsewhere in the West, a warm front will move through western Washington, bringing light showers to the Pacific Northwest through the morning. Offshore flow and ridging could give clearing and

warmer temperature to the region by the afternoon.

In the East, a cold front from southern Canada will drop into the Great Lakes and Central Plains during the day. This system will kick up snow showers in parts of the Upper Great Lakes, primarily in northern Michigan. Elsewhere, high pressure builds over the Eastern Valleys with generally calm and dry weather conditions.
Weather Underground Forecast for Thursday, February 09, 2012.

A disturbance dropping southeastward across the Great Basin will reach the southern Rockies on Thursday. The system will kick up light snow showers in the Central and Southern Rockies. Snow accumulation is expected to fairly light, with only an inch or two at best over the San Juans and

southern Sangres mountains. Meanwhile, another disturbance moving out of northeastern Mexico will move into Texas. This energy will interact with moisture from the Gulf of Mexico will produce light rain showers in the Southern Plains. Elsewhere in the West, a warm front will move through western Washington, bringing light showers to the Pacific Northwest through the morning. Offshore flow and ridging could give clearing and

warmer temperature to the region by the afternoon.

In the East, a cold front from southern Canada will drop into the Great Lakes and Central Plains during the day. This system will kick up snow showers in parts of the Upper Great Lakes, primarily in northern Michigan. Elsewhere, high pressure builds over the Eastern Valleys with generally calm and dry weather conditions.
Sarnia Weather at a Glance
Updated 8:30 AM EST
Weather Station - report
Elevation
594 ft
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Now
Clear
Clear
Temperature
24.8 °F
Feels Like 25 °F
Wind(mph)
2.6
Sunrise / Set
7:35 AM
5:52 PM
Moon
Waning Gibbous
Today
Clear 43 °F
Clear
Tonight
Clear 25 °F
Clear
Tomorrow
Chance of Rain 41 | 14 °F
Chance of Rain
20% chance of precipitation
Saturday
Mostly Cloudy 30 | 16 °F
Mostly Cloudy
Sunday
Mostly Cloudy 34 | 21 °F
Mostly Cloudy
Monday
Clear 43 | 27 °F
Clear
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.17 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
73%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KPHN 091316Z AUTO 23007KT 10SM CLR M05/M08 A3017
Don't speak METAR? Read our FAQ.
Weather Radio
Temperature
Windchill
25 °F
Dew Point
17 °F
Wind
Speed / Dir
2.6 mph from WSW
Wind Gust
4.6 mph
Health
UV
0.0 out of 16
Pollen
Not available.
Air Quality
Not available.
Flu Activity
Not available.
Loading…
Source: BestForecast
Descriptive Forecast
Thursday
clear Clear. High of 43°F. Winds less than 5 mph.
Thursday Night
nt_clear Clear. Low of 25°F with a windchill of 19°F. Winds from the WSW at 5-10 mph shifting to the SSW after midnight.
Friday
chancerain Overcast with a chance of rain in the afternoon. High of 41°F with a windchill of 23°F. Winds from the WSW at 5-10 mph. Chance of rain 20%.
Friday Night
nt_chancesnow Overcast with a chance of snow and rain showers. Low of 14°F with a windchill of 1°F. Winds from the NW at 20-25 mph shifting to the NNE after midnight. Chance of snow 40% with accumulations up to 1 in. possible.
Saturday
mostlycloudy Overcast. High of 30°F with a windchill of 7°F. Winds from the North at 5-15 mph.
Saturday Night
nt_partlycloudy Mostly cloudy. Low of 16°F with a windchill of 1°F. Winds from the NW at 10-15 mph.
Sunday
mostlycloudy Mostly cloudy in the morning, then overcast. High of 34°F with a windchill of 3°F. Winds from the WNW at 10-20 mph.
Sunday Night
nt_clear Clear. Low of 21°F with a windchill of 12°F. Winds from the West at 5-15 mph.
Monday
clear Clear. High of 43°F. Winds from the WSW at 5-10 mph.
Monday Night
nt_chancesnow Overcast with a chance of snow and rain showers. Low of 27°F with a windchill of 19°F. Winds from the SW at 5-10 mph. Chance of snow 50% with accumulations up to 1 in. possible.
Tuesday
chancesnow Overcast with a chance of snow and rain showers. High of 39°F with a windchill of 21°F. Winds from the SSW at 5-10 mph shifting to the NNW in the afternoon. Chance of snow 20%.
Tuesday Night
nt_mostlycloudy Overcast. Low of 30°F. Winds less than 5 mph.
Wednesday
mostlycloudy Partly cloudy in the morning, then overcast. High of 43°F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Overcast in the evening, then clear. Low of 27°F. Winds less than 5 mph.
Thursday
chancesnow Overcast with a chance of snow and rain showers, then a chance of rain in the afternoon. High of 41°F. Winds less than 5 mph. Chance of precipitation 70%. Snow accumulations of 1 in. possible.
Thursday Night
nt_mostlycloudy Overcast in the evening, then mostly cloudy. Low of 28°F with a windchill of 25°F. Winds from the North at 5-10 mph.
Friday
partlycloudy Mostly cloudy in the morning, then partly cloudy. High of 34°F with a windchill of 21°F. Winds from the NW at 5-10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 27°F with a windchill of 23°F. Winds from the North at 5-10 mph.
Saturday
clear Clear. High of 45°F. Winds less than 5 mph.
Saturday Night
nt_clear Clear. Low of 27°F. Winds less than 5 mph.
Sunday
clear Clear. High of 45°F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 27°F. Winds less than 5 mph.
Loading…
 
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Forecast
View Calendar 7-Day Weather Forecast for Sarnia
Thursday, 9
Clear
43 | 25 °F
Clear
Chance of
Precipitation
0%
Friday, 10
Chance of Rain
41 | 14 °F
Chance of Rain
Chance of
Precipitation
20%
Saturday, 11
Mostly Cloudy
30 | 16 °F
Mostly Cloudy
Chance of
Precipitation
0%
Sunday, 12
Mostly Cloudy
34 | 21 °F
Mostly Cloudy
Chance of
Precipitation
0%
Monday, 13
Clear
43 | 27 °F
Clear
Chance of
Precipitation
0%
Tuesday, 14
Chance of Snow
39 | 30 °F
Chance of Snow
Chance of
Precipitation
20%
Wednesday, 15
Mostly Cloudy
43 | 27 °F
Mostly Cloudy
Chance of
Precipitation
0%
Thursday, 16
Chance of Snow
41 | 28 °F
Chance of Snow
Chance of
Precipitation
70%
Source: BestForecast
Descriptive Forecast
Thursday
clear Clear. High of 43°F. Winds less than 5 mph.
Thursday Night
nt_clear Clear. Low of 25°F with a windchill of 19°F. Winds from the WSW at 5-10 mph shifting to the SSW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 26 | 14 37 | 19 35 | 19 29 | 17
Wind 4 mph WSW 4 mph WSW 6 mph WNW 8 mph WSW
Humidity 63% 49% 51% 62%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:35 AM
5:52 PM
Source: BestForecast
Descriptive Forecast
Friday
chancerain Overcast with a chance of rain in the afternoon. High of 41°F with a windchill of 23°F. Winds from the WSW at 5-10 mph. Chance of rain 20%.
Friday Night
nt_chancesnow Overcast with a chance of snow and rain showers. Low of 14°F with a windchill of 1°F. Winds from the NW at 20-25 mph shifting to the NNE after midnight. Chance of snow 40% with accumulations up to 1 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 27 | 16 39 | 26 26 | 18 19 | 9
Wind 5 mph SSW 4 mph SW 8 mph SW 13 mph NNE
Humidity 64% 64% 67% 67%
Chance of Precip. 0% 10% 20% 20%
Cloud Cover 0% 100% 100% 100%
Conditions Clear Overcast Chance of Rain Chance of Snow
Sunrise & Sunset
7:34 AM
5:53 PM
Source: BestForecast
Descriptive Forecast
Saturday
mostlycloudy Overcast. High of 30°F with a windchill of 7°F. Winds from the North at 5-15 mph.
Saturday Night
nt_partlycloudy Mostly cloudy. Low of 16°F with a windchill of 1°F. Winds from the NW at 10-15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 15 | 3 24 | 8 29 | 9 20 | 2
Wind 11 mph NNE 7 mph North 9 mph NW 8 mph NNW
Humidity 60% 48% 41% 47%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 100% 100% 85% 36%
Conditions Overcast Overcast Mostly Cloudy Partly Cloudy
Sunrise & Sunset
7:32 AM
5:54 PM
Source: BestForecast
Descriptive Forecast
Sunday
mostlycloudy Mostly cloudy in the morning, then overcast. High of 34°F with a windchill of 3°F. Winds from the WNW at 10-20 mph.
Sunday Night
nt_clear Clear. Low of 21°F with a windchill of 12°F. Winds from the West at 5-15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 16 | 1 26 | 9 28 | 10 22 | 7
Wind 12 mph NW 12 mph NW 13 mph WNW 8 mph WSW
Humidity 51% 47% 48% 51%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 71% 85% 84% 0%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear
Sunrise & Sunset
7:31 AM
5:56 PM
Source: BestForecast
Descriptive Forecast
Monday
clear Clear. High of 43°F. Winds from the WSW at 5-10 mph.
Monday Night
nt_chancesnow Overcast with a chance of snow and rain showers. Low of 27°F with a windchill of 19°F. Winds from the SW at 5-10 mph. Chance of snow 50% with accumulations up to 1 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 15 34 | 19 32 | 20 28 | 14
Wind 6 mph NW 7 mph SSW 9 mph SSW 8 mph WSW
Humidity 66% 53% 58% 54%
Chance of Precip. 0% 0% 0% 20%
Cloud Cover 0% 0% 0% 100%
Conditions Clear Clear Clear Chance of Snow
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Tuesday
chancesnow Overcast with a chance of snow and rain showers. High of 39°F with a windchill of 21°F. Winds from the SSW at 5-10 mph shifting to the NNW in the afternoon. Chance of snow 20%.
Tuesday Night
nt_mostlycloudy Overcast. Low of 30°F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 28 | 24 35 | 25 31 | 19 31 | 25
Wind 8 mph South 6 mph South 5 mph North 5 mph SSW
Humidity 86% 71% 61% 79%
Chance of Precip. 20% 10% 10% 10%
Cloud Cover 100% 100% 99% 95%
Conditions Chance of Snow Overcast Overcast Overcast
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Wednesday
mostlycloudy Partly cloudy in the morning, then overcast. High of 43°F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Overcast in the evening, then clear. Low of 27°F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 33 | 28 36 | 29 35 | 24 32 | 25
Wind 4 mph SSW 4 mph ENE 4 mph SSW 2 mph SSE
Humidity 83% 76% 63% 76%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 59% 61% 98% 51%
Conditions Partly Cloudy Partly Cloudy Overcast Partly Cloudy
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Thursday
chancesnow Overcast with a chance of snow and rain showers, then a chance of rain in the afternoon. High of 41°F. Winds less than 5 mph. Chance of precipitation 70%. Snow accumulations of 1 in. possible.
Thursday Night
nt_mostlycloudy Overcast in the evening, then mostly cloudy. Low of 28°F with a windchill of 25°F. Winds from the North at 5-10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 28 | 24 35 | 29 33 | 23 30 | 28
Wind 2 mph ESE 0 mph NE 3 mph NNE 5 mph NNW
Humidity 82% 78% 66% 89%
Chance of Precip. 0% 30% 30% 0%
Cloud Cover 2% 100% 99% 93%
Conditions Clear Chance of Snow Chance of Rain Overcast
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Friday
partlycloudy Mostly cloudy in the morning, then partly cloudy. High of 34°F with a windchill of 21°F. Winds from the NW at 5-10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 27°F with a windchill of 23°F. Winds from the North at 5-10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 26 33 | 22 31 | 19 28 | 24
Wind 7 mph North 8 mph NW 8 mph NNW 5 mph North
Humidity 84% 64% 61% 82%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 83% 73% 64% 47%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Saturday
clear Clear. High of 45°F. Winds less than 5 mph.
Saturday Night
nt_clear Clear. Low of 27°F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 27 | 25 31 | 28 29 | 26 28 | 27
Wind 4 mph North 5 mph NW 4 mph West 3 mph NNW
Humidity 87% 87% 87% 89%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 24% 11% 10% 7%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:30 AM
5:57 PM
Source: BestForecast
Descriptive Forecast
Sunday
clear Clear. High of 45°F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 27°F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 28 | 25 32 | 29 32 | 29 27 | 25
Wind 2 mph West 2 mph ENE 2 mph West 4 mph NW
Humidity 90% 88% 86% 89%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 6% 11% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:30 AM
5:57 PM
 
Nearby
History & Almanac
February 9, 2012 Max Temp Min Temp
Normal (CYZR) 30 °F 14 °F
Yesterday 40.8 °F 20.3 °F
Choose a date
Astronomy
Feb. 09, 2012 Rise Set
Actual Time 7:35 AM EST 5:52 PM EST
Civil Twilight 7:05 AM EST 6:21 PM EST
Nautical Twilight 6:32 AM EST 6:55 PM EST
Astronomical Twilight 5:59 AM EST 7:28 PM EST
Moon 8:24 PM EST 8:06 AM EST
Length Of Visible Light 11h 15m
Length of Day
10h 16m
Tomorrow will be 2m 37s longer.
Waning Gibbous, 97% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Yesterday's Extremes
Country Highs State Lows
50 °F
Prince Rupert
50 °F
White Rock
50 °F
Milk River
-41 °F
Mould Bay
-38 °F
Thomsen River
-32 °F
Eureka
-32 °F
Shepherd Bay
Source: WMO
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Aviation
City Temp. Conditions Updated
Sarnia Airport 2 °F 7:00 AM EST
Sarnia 25 °F Clear 8:00 AM EST
Port Huron 23 °F Clear 8:16 AM EST
Mt. Clemens 23 °F Clear 7:55 AM EST
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: VFR (KPHN)
Wind Speed: 7.0 kts.
Wind Dir: 248° (WSW)
Ceiling: Unlimited

METAR KPHN 091316Z AUTO 23007KT 10SM CLR M05/M08 A3017

Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Sarnia, Sherwood, Sarnia 24.8 °F 25 °F 17 °F 73% WSW  at  2.6 mph 0.00 in / hr 594 ft 8:30 AM EST Rapid Fire  
NOS_NWLON Fort Gratiot, MI, Port Huron, MI - - - - SW  at  11 mph 0.00 in / hr 590 ft 7:54 AM EST MADIS
NOS_NWLON Port Huron, MI, Port Huron, MI - - - - North  at  - 0.00 in / hr 590 ft 7:54 AM EST MADIS
APRSWXNET Port Huron MI , Port Huron, MI 24 °F 17 °F 17 °F 73% WSW  at  6 mph 0.00 in / hr 600 ft 8:01 AM EST MADIS
Vantage Point, St. Clair & Black Rivers, Port Huron, MI 24.4 °F 14 °F 16 °F 71% SW  at  10.0 mph 0.00 in / hr 707 ft 8:30 AM EST Rapid Fire
Port Huron, MI 25.1 °F 25 °F 20 °F 81% WSW  at  2.0 mph 0.00 in / hr 620 ft 8:25 AM EST Normal  
Kraftt and Parker, Fort Gratiot Township, MI 24.6 °F 20 °F 20 °F 84% WSW  at  3.5 mph 0.00 in / hr 618 ft 8:30 AM EST Rapid Fire  
Back Yard Station, Marysville, MI 23.5 °F 17 °F 3 °F 40% WSW  at  4.9 mph 0.00 in / hr 650 ft 8:30 AM EST Rapid Fire  
TEC, Marysville, MI 24.5 °F 13 °F 20 °F 82% SW  at  12.0 mph - / hr 660 ft 8:23 AM EST Normal  
Ice Station Z, Greenwood Twp., MI 25.0 °F 16 °F 17 °F 71% SW  at  8.0 mph 0.00 in / hr 755 ft 8:05 AM EST Normal
MesoWest Emmett , Emmett, MI 25 °F 18 °F 16 °F 67% WSW  at  6 mph 0.00 in / hr 787 ft 6:00 AM EST MADIS
DWS, Casco, MI 23.1 °F 23 °F 18 °F 82% WNW  at  0.0 mph 0.00 in / hr 629 ft 8:30 AM EST Rapid Fire
Petrolia 26.6 °F 22 °F 18 °F 70% SSW  at  3.6 mph - / hr -107507 ft 2:16 PM CET Normal  
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Special Weather Statement
Special Weather Statement
issued by Environment Canada
at 6:23 am EST Thursday 9 February 2012.
---------------------------------------------------------------------
Special Weather Statement for:
=new= City of Toronto
=new= Windsor - Essex - Chatham-Kent
=new= Sarnia - Lambton
=new= Elgin
=new= London - Middlesex
=new= Simcoe - Delhi - Norfolk
=new= Dunnville - Caledonia - Haldimand
=new= Oxford - Brant
=new= Niagara
=new= City of Hamilton
=new= Halton - Peel
=new= York - Durham
=new= Huron - Perth
=new= Waterloo - Wellington
=new= Dufferin - Innisfil
=new= Grey - Bruce
=new= Barrie - Orillia - Midland
=new= Belleville - Quinte - Northumberland
=new= Kingston - Prince Edward
=new= Peterborough - Kawartha Lakes
=new= Stirling - Tweed - South Frontenac
=new= Bancroft - Bon Echo Park
=new= Brockville - Leeds and Grenville
=new= City of Ottawa
=new= Gatineau
=new= Prescott and Russell
=new= Cornwall - Morrisburg
=new= Smiths Falls - Lanark - Sharbot Lake.

    Possible flash freeze late Friday.

---------------------------------------------------------------------
==Discussion==
a sharp Arctic cold front will cross southern Ontario later on
Friday. Northerly winds and some wet snow will Herald the arrival of
the front followed by a few hours of snow. Temperatures will fall
quickly shortly after the front's passage. The combination of wet
snow freezing on untreated roads and a couple centimetres of fresh
snow may potentially create flash freeze conditions in some parts of
southern Ontario. This may be particularly hazardous for the greater
Toronto area as it appears it may impact rush hour traffic.

Environment Canada will monitor the development of this forecast
problem, and will issue a flash freeze warning if it becomes more
certain.

Please monitor the latest forecasts and warnings from Environment
Canada at www.Weatheroffice.Gc.CA

End/ospc