Grand Canyon, AZ

10:54 AM MST on May 16, 2012 (GMT -0700)
Elev: 6909 ft
Lon: 112.1° W
Lat: 36.1° N
Source
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Active Advisory: Fire Weather Watch (US Severe Weather)
Tropical Weather: Tropical Storm Aletta (East Pacific) Invest 92 (East Pacific)
Weather Summary
Kari Kiefer
Weather Underground Forecast for Wednesday, May 16, 2012.

Unsettled weather is expected to continue across the Eastern U.S. Wednesday. A weak trough of low pressure will remain in place, as a cold front over the Midwest moves east and south. The northern portion of this cold front is forecast to move offshore Thursday morning, while the southern portion becomes near stationary across the Southeast and lower Mississippi Valley. As a result, widely scattered showers and isolated thunderstorms are expected across the Tennessee and Ohio Valley as well as the Eastern U.S. Wednesday and continue into Thursday morning. In particular, there is a slight risk of severe thunderstorms across parts of the Northeast. Some hail will be possible, but greater severe risk appears to be locally damaging winds. In addition, a few storms may produce locally gusty winds or small hail over the Southeast Coast in the afternoon.

Elsewhere, scattered showers and thunderstorms will continue over southeast Texas and Gulf Coast. Moreover, a few isolated rain showers and thunderstorms may pop up over the Intermountain West.

Temperature wise, another hot and dry day is in store for the Desert Southwest. Afternoon temperatures will reach 90s and low 100s. Over the Northern High Plains, temperatures are forecast to soar 15 to 20 degrees above average. Widespread upper 80s and low 90s are expected for the highs.
Weather Underground Forecast for Wednesday, May 16, 2012.

Unsettled weather is expected to continue across the Eastern U.S. Wednesday. A weak trough of low pressure will remain in place, as a cold front over the Midwest moves east and south. The northern portion of this cold front is forecast to move offshore Thursday morning, while the southern portion becomes near stationary across the Southeast and lower Mississippi Valley. As a result, widely scattered showers and isolated thunderstorms are expected across the Tennessee and Ohio Valley as well as the Eastern U.S. Wednesday and continue into Thursday morning. In particular, there is a slight risk of severe thunderstorms across parts of the Northeast. Some hail will be possible, but greater severe risk appears to be locally damaging winds. In addition, a few storms may produce locally gusty winds or small hail over the Southeast Coast in the afternoon.

Elsewhere, scattered showers and thunderstorms will continue over southeast Texas and Gulf Coast. Moreover, a few isolated rain showers and thunderstorms may pop up over the Intermountain West.

Temperature wise, another hot and dry day is in store for the Desert Southwest. Afternoon temperatures will reach 90s and low 100s. Over the Northern High Plains, temperatures are forecast to soar 15 to 20 degrees above average. Widespread upper 80s and low 90s are expected for the highs.
Weather Underground Broadcast Network

Grand Canyon Weather at a Glance

Updated 10:54 AM MST
Weather Station - report
Grand Canyon
Elevation
6830 ft
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Now
Clear
Clear
Temperature
71.0 °F
Feels Like 72 °F
Wind(mph)
1.0
Sunrise / Set
5:21 AM
7:28 PM
Moon
Waning Crescent
Today
Clear 79 °F
Clear
Tonight
Clear 30 °F
Clear
Tomorrow
Clear 82 | 41 °F
Clear
Friday
Partly Cloudy 73 | 28 °F
Partly Cloudy
Saturday
Clear 73 | 28 °F
Clear
Sunday
Clear 77 | 30 °F
Clear
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.89 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
10%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KGCN 161654Z 21016G26KT 10SM CLR 22/M08 A3016 RMK AO2 PK WND 23026/1650 SLP120 T02171083
Don't speak METAR? Read our FAQ.
Weather Radio
Weather Radio Index
Temperature
Heat Index
72 °F
Dew Point
12 °F
Wind
Speed / Dir
1.0 mph from SSW
Wind Gust
6.0 mph
Health
UV
9 out of 16
Pollen
6.30 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Wednesday
clear Clear in the morning, then partly cloudy. High of 79F. Breezy. Winds from the SW at 15 to 20 mph with gusts to 30 mph.
Wednesday Night
nt_clear Clear. Low of 30F. Winds from the SW at 5 to 10 mph.
Thursday
clear Clear. High of 82F. Windy. Winds from the SW at 15 to 25 mph with gusts to 35 mph.
Thursday Night
nt_clear Clear. Low of 41F. Breezy. Winds from the SW at 10 to 20 mph.
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 73F. Windy. Winds from the SW at 20 to 25 mph with gusts to 40 mph.
Friday Night
nt_clear Clear. Low of 28F. Winds from the WSW at 5 to 15 mph.
Saturday
clear Clear. High of 73F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 28F. Winds less than 5 mph.
Sunday
clear Clear. High of 77F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 30F. Winds less than 5 mph.
Monday
clear Clear. High of 82F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 32F. Winds from the West at 5 to 10 mph.
Tuesday
clear Clear. High of 84F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 32F. Winds from the SW at 5 to 15 mph.
Wednesday
clear Clear. High of 84F. Breezy. Winds from the SW at 15 to 25 mph.
Wednesday Night
nt_clear Clear. Low of 32F. Winds from the SW at 5 to 15 mph.
Thursday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 30F. Winds from the SW at 5 to 10 mph.
Friday
clear Partly cloudy. High of 73F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Partly cloudy. Low of 28F. Winds from the SW at 5 to 10 mph.
Saturday
clear Partly cloudy. High of 73F. Winds from the SW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 28F. Winds from the SW at 5 to 10 mph.
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Forecast

View Calendar 10-Day Forecast for station KGCN

Wednesday, 16
Clear
79 | 30 °F
Clear
Chance of
Precipitation
0%
Thursday, 17
Clear
82 | 41 °F
Clear
Chance of
Precipitation
0%
Friday, 18
Partly Cloudy
73 | 28 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 19
Clear
73 | 28 °F
Clear
Chance of
Precipitation
0%
Sunday, 20
Clear
77 | 30 °F
Clear
Chance of
Precipitation
0%
Monday, 21
Clear
82 | 32 °F
Clear
Chance of
Precipitation
0%
Tuesday, 22
Clear
84 | 32 °F
Clear
Chance of
Precipitation
0%
Wednesday, 23
Clear
84 | 32 °F
Clear
Chance of
Precipitation
0%
Thursday, 24
Clear
75 | 30 °F
Clear
Chance of
Precipitation
0%
Friday, 25
Clear
73 | 28 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Wednesday
clear Clear in the morning, then partly cloudy. High of 79F. Breezy. Winds from the SW at 15 to 20 mph with gusts to 30 mph.
Wednesday Night
nt_clear Clear. Low of 30F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 21 75 | 8 70 | 13 41 | 15
Wind 3 mph SSE 16 mph SW 13 mph WSW 4 mph SW
Humidity 37% 8% 11% 34%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 7% 14% 6% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:21 AM
7:28 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.38], Average RMSE [2.39]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.25], Average RMSE [2.74] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Thursday
clear Clear. High of 82F. Windy. Winds from the SW at 15 to 25 mph with gusts to 35 mph.
Thursday Night
nt_clear Clear. Low of 41F. Breezy. Winds from the SW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 19 79 | 17 70 | 13 51 | 24
Wind 6 mph SSW 17 mph SW 13 mph WSW 13 mph SW
Humidity 39% 9% 11% 34%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 11% 7% 6% 6%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:20 AM
7:29 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.53], Average RMSE [2.02]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.25], Average RMSE [2.96] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 73F. Windy. Winds from the SW at 20 to 25 mph with gusts to 40 mph.
Friday Night
nt_clear Clear. Low of 28F. Winds from the WSW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 22 69 | 17 62 | 7 39 | 16
Wind 14 mph SW 23 mph SW 18 mph WSW 7 mph WSW
Humidity 37% 13% 12% 38%
Chance of Precip. 0% 10% 10% 0%
Cloud Cover 4% 13% 51% 0%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
5:20 AM
7:30 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.28], Average RMSE [2.27]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.22], Average RMSE [2.89] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Saturday
clear Clear. High of 73F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 28F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 38 | 14 69 | 13 67 | 19 35 | 11
Wind 5 mph WSW 8 mph West 9 mph West 3 mph NW
Humidity 42% 10% 16% 36%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:19 AM
7:31 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.73], Average RMSE [2.47]
The National Weather Service forecast quality is good. MaxT RMSE [2.02], Average RMSE [2.96] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Sunday
clear Clear. High of 77F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 30F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 42 | 18 73 | 18 68 | 16 37 | 15
Wind 4 mph NE 4 mph East 2 mph SSW 3 mph SW
Humidity 42% 12% 13% 39%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 3% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.41], Average RMSE [2.94]
The National Weather Service forecast quality is good. MaxT RMSE [1.99], Average RMSE [3.19] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Monday
clear Clear. High of 82F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 32F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 21 76 | 17 76 | 11 43 | 11
Wind 1 mph NW 5 mph SSE 9 mph WSW 4 mph West
Humidity 40% 10% 8% 28%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.17], Average RMSE [3.06]
The National Weather Service forecast quality is good. MaxT RMSE [2.23], Average RMSE [3.21] : Use NWS
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Tuesday
clear Clear. High of 84F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 32F. Winds from the SW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 16 79 | 12 76 | 11 43 | 12
Wind 2 mph WSW 8 mph SSW 13 mph WSW 8 mph WSW
Humidity 31% 7% 8% 28%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 6% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.19], Average RMSE [3.15]
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Wednesday
clear Clear. High of 84F. Breezy. Winds from the SW at 15 to 25 mph.
Wednesday Night
nt_clear Clear. Low of 32F. Winds from the SW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 14 79 | 13 72 | 9 45 | 16
Wind 9 mph SSW 18 mph SW 17 mph SW 6 mph SW
Humidity 32% 8% 8% 30%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 9% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.24], Average RMSE [3.86]
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Thursday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 30F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 17 72 | 20 70 | 26 43 | 25
Wind 4 mph SW 9 mph WSW 11 mph West 5 mph SW
Humidity 37% 14% 20% 49%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 1% 2%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.39], Average RMSE [4.71]
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Friday
clear Partly cloudy. High of 73F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Partly cloudy. Low of 28F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 41 | 27 71 | 46 68 | 39 42 | 24
Wind 4 mph SSW 9 mph SW 10 mph WSW 5 mph SW
Humidity 56% 41% 32% 49%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 3% 12% 21% 16%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
Source: BestForecast at 6:44 AM MST on May 16, 2012
Descriptive Forecast
Saturday
clear Partly cloudy. High of 73F. Winds from the SW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 28F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 39 | 28 71 | 44 68 | 32 42 | 17
Wind 4 mph SSW 7 mph SW 9 mph WSW 5 mph SW
Humidity 60% 39% 24% 35%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 12% 13% 15% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:18 AM
7:32 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 16, 2012 Max Temp Min Temp
Normal (KGCN) 69 °F 30 °F
Record (KGCN) 80 °F (1976) 25 °F (1998)
Yesterday 79.8 °F 57.8 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
May. 16, 2012 Rise Set
Actual Time 5:21 AM MST 7:28 PM MST
Civil Twilight 4:52 AM MST 7:57 PM MST
Nautical Twilight 4:17 AM MST 8:32 PM MST
Astronomical Twilight 3:40 AM MST 9:10 PM MST
Moon 2:46 AM MST 3:53 PM MST
Length Of Visible Light 15h 04m
Length of Day
14h 07m
Tomorrow will be 1m 32s longer.
Waning Crescent, 16% of the Moon is Illuminated
Today
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
96 °F
Phoenix-Mesa Gateway Airpo
95 °F
Goodyear
95 °F
Phoenix
93 °F
Glendale
93 °F
Casa Grande
33 °F
Grand Canyon
35 °F
Window Rock
39 °F
Flagstaff
42 °F
Williams
51 °F
Show Low
Record Extremes
Snow Depth
Station Depth Elevation
Mormon Mountain 39 in 7500 ft
Happy Jack 0 in 7630 ft
Workman Creek 0 in 6900 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Grand Canyon 71 °F Clear 9:54 AM MST
Williams 72 °F Clear 10:55 AM MST
Flagstaff 67 °F Clear 9:57 AM MST
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KGCN)
Wind Speed: 16.0 kts.
Wind Dir: 200° (SSW)
Ceiling: Unlimited

METAR KGCN 161654Z 21016G26KT 10SM CLR 22/M08 A3016 RMK AO2 PK WND 23026/1650 SLP120 T02171083

View all Reports & Maps
Sports
Event Date Forecast
Dodgers vs. Padres 3:35 PM PDT on May 16, 2012 Clear, 70 °F
Mariners vs. Indians 7:05 PM EDT on May 16, 2012 Clear, 61 °F
Event Date Forecast
Las Palmas vs. Deportivo 8:00 PM CEST on May 16, 2012 Chance of Rain, High 77° F/ 25° C
Córdoba CF vs. Recreativo de Huelva 8:00 PM CEST on May 16, 2012 Overcast, High 82° F/ 28° C
Event Date Forecast
Sprint Showdown 7:30 PM EDT on May 19, 2012 Partly Cloudy, 72 °F
NASCAR Sprint All-Star Race 9:00 PM EDT on May 19, 2012 Partly Cloudy, 72 °F
Event Date Forecast
HP Byron Nelson Championship 8:30 AM CDT on May 17, 2012 Clear, 63 °F
HP Byron Nelson Championship 8:30 AM CDT on May 18, 2012 Partly Cloudy, 67 °F
View all Sports Weather
Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Grand Canyon AZ U, Grand Canyon, AZ 69 °F - 12 °F 11% South  at  7 mph 0.00 in / hr 6830 ft 10:31 AM MST MADIS
Grand Canyon, AZ 71.0 °F 72 °F 12 °F 10% SSW  at  1.0 mph 0.00 in / hr 6830 ft 10:54 AM MST Rapid Fire  
RAWS TUSAYAN AZ, Grand Canyon, AZ 73 °F 74 °F 21 °F 14% SSW  at  6 mph 0.00 in / hr 6569 ft 10:08 AM MST MADIS
HADS Williams 35 NNW AZ, Grand Canyon, AZ 73 °F 71 °F - - North  at  - 0.00 in / hr 5990 ft 10:05 AM MST MADIS
RAWS BRIGHT ANGEL AZ, Fredonia, AZ 62 °F - 15 °F 16% WSW  at  7 mph 0.00 in / hr 8133 ft 10:07 AM MST MADIS
RAWS LINDBERGH HILL AZ, Fredonia, AZ 62 °F - 15 °F 16% WSW  at  6 mph 0.00 in / hr 8799 ft 10:08 AM MST MADIS
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Fire Weather Watch
Mobile & Email Alerts Statement as of 3:25 AM MDT on May 16, 2012

... Fire Weather Watch in effect from Friday morning through
Friday evening for low humidities and strong winds for much of
northern Arizona...

The National Weather Service in Flagstaff has issued a Fire
Weather Watch... which is in effect from Friday morning through
Friday evening.

* Affected area... fire weather zones 106... 107... 108... 109...
110... 111... 112... 113... 114... 115... 116... 117... 118... 139 and
140. It is roughly the area east of the line from Page to
Seligman to Payson and then north of the line from Payson
through Whiteriver.

* 20 foot wind... southwest winds 15 to 25 mph with gusts to 40
mph are expected Friday afternoon.

* Relative humidity... values from 5 to 12 percent during the
afternoon.

* Impacts... fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Precautionary/preparedness actions...

A Fire Weather Watch means critical fire weather conditions are
possible. Listen for later forecasts and possible red flag
warnings.

Please notify field crews of this Fire Weather Watch.



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