Reporting Station : Seattle Boeing Field, WA
52%
Humidity
7°C
Dew Point
17°C
Comfort Level
16 km
Visibility
1013.20 mb
Barometric Pressure
Air Quality
Waxing crescent
Rise 9:01AM
Set 1:18AM
SUNDAY NIGHT
SEA / No delays
MAY 12TH, 1972-In Texas, A cloudburst dumped sixteen inches of rain north of New Braunfels sending a thirty foot wall of water down Blueders Creek into the Comal and Guadalupe Rivers washing away people, houses and automobiles. The flood claimed 18 lives and caused more than twenty million dollars damage.
MAY 12TH, 1972
In Texas, A cloudburst dumped sixteen inches of rain north of New Braunfels sending a thirty foot wall of water down Blueders Creek into the Comal and Guadalupe Rivers washing away people, houses and automobiles. The flood claimed 18 lives and caused more than twenty million dollars damage.
MAY 12TH, 1934
A dust storm darkened skies from Oklahoma to the Atlantic coast.
MAY 11TH, 1953
A tornado hit Waco TX killing 114 persons and burying some downtown streets under five feet of fallen bricks.
MAY 11TH, 1966
The 1.6 inch snow at Chicago IL was their latest measurable snow of record. Previously the record was 3.7 inches on the 1st and 2nd of May set in 1940.
MAY 10TH, 1905
A deadly tornado hit the town of Snyder OK killing 87 persons. The tornado leveled 100 homes in Snyder, and destroyed many others. The large and violent tornado killed a total of 97 persons along its 40 miles path across southwestern Oklahoma. Its roar could reportedly be heard up to twelve miles away.
MAY 10TH, 1987
Thunderstorms along the Central Gulf Coast deluged Lillian AL with14.5 inches of rain, and nearby Perdido Key FL with 12.8 inches of rain.
MAY 9TH, 1966
Record snows fell in the northeastern Ohio and western Pennsylvania, including 3.1 inches at Pittsburgh PA and 5.4 inches at Youngstown OH. Snow also extended across parts of New York State, with eight inches reported in the southern Adirondacks.
MAY 9TH, 1977
A late season snowstorm hit parts of Pennsylvania, New York State, and southern and central New England. Heavier snowfall totals included 27 inches at Slide Mountain NY and 20 inches at Norwalk CT. At Boston it was the first May snow in 107 years of records. The heavy wet snow caused extensive damage to trees and power lines. The homes of half a million persons were without power following the storm.
MAY 8TH, 1784
A deadly hailstorm in South Carolina hit the town of Winnsborough. The hailstones, measuring as much as nine inches in circumference, killed several persons, and a great number of sheep, lambs and birds.
MAY 8TH, 1981
The Dallas/Fort Worth area experienced its worst hailstorm of record as baseball to grapefruit size hail, accompanied by 100 mph winds, caused nearly 200 million dollars damage. Hail accumulated eight inches deep at Cedar Hill TX.
MAY 7TH, 1988
A powerful storm in the north central U.S. produced up to three feet of snow in the Bighorn Mountains of Wyoming and the mountains of south central Montana. Up to five inches of rain drenched central Montana in less than 24 hours, and flash flooding in Wyoming caused a million dollars damage.
Wind Advisory
Issued By
NWS Field Office
Broadcast Time
Mon, 29 Dec 2014 03:43:00 PST
Issuing Time
Mon, 29 Dec 2014 03:43:00 PST
Valid Until
Mon, 29 Dec 2014 03:43:00 PST
Strong northerly winds are forecast to develop across the San Francisco Bay Area by midday
Tuesday and continue through midday Wednesday. A strong..cold and dry storm system will
sweep into northern and central California late Monday night and Tuesday morning. This
system will generate strong and gusty north to northest winds across the region from
midday Tuesday through midday Wednesday.
Waxing crescent
Rise 9:01AM
Set 1:18AM
SUNDAY NIGHT
SEA / No delays
History
Weather Station: Seattle-Tacoma International Airport , WA , US
May Data
Choose another month
Averages
Average High Temperature
6.70 °C
Average Low Temperature
1.10 °C
Average Mean Temp
3.90 °C
Average Dew Point
0.60 °C
Average Windspeed
22.20 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
83.0
Average Afternoon Relative Humidity
76.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
14.47
Average Snowfall (US Only)
12.70
Daily Counts
Days With Precipitation
19
Days With Thunderstorms
*
Days With Fog
18
Days With Snow
3
Days With Lows Below Freezing
11
Days above 90° F (32.2° C)
0
Records
Record High
17.80 °C
Record Low
-17.80 °C
Record Wind Speed
87.00 km/h
Record Monthly Snowfall
144.7 cm
Record 24-hour Snowfall
50.80 cm
Record Monthly Rainfall
327 mm
Record 24-hour Rainfall
76 mm
Record Minimum Monthly Precipitation
1.52 mm
Averages
Average High Temperature
8.90 °C
Average Low Temperature
2.20 °C
Average Mean Temp
6.10 °C
Average Dew Point
1.70 °C
Average Windspeed
22.20 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
83.0
Average Afternoon Relative Humidity
69.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
10.66
Average Snowfall (US Only)
5.10
Daily Counts
Days With Precipitation
16
Days With Thunderstorms
*
Days With Fog
14
Days With Snow
1
Days With Lows Below Freezing
7
Days above 90° F (32.2° C)
0
Records
Record High
21.10 °C
Record Low
-17.20 °C
Record Wind Speed
96.30 km/h
Record Monthly Snowfall
33.0 cm
Record 24-hour Snowfall
17.80 cm
Record Monthly Rainfall
231 mm
Record 24-hour Rainfall
76 mm
Record Minimum Monthly Precipitation
1.52 mm
Averages
Average High Temperature
11.10 °C
Average Low Temperature
3.30 °C
Average Mean Temp
7.20 °C
Average Dew Point
2.20 °C
Average Windspeed
20.40 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
84.0
Average Afternoon Relative Humidity
63.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
9.39
Average Snowfall (US Only)
2.50
Daily Counts
Days With Precipitation
17
Days With Thunderstorms
1
Days With Fog
12
Days With Snow
1
Days With Lows Below Freezing
5
Days above 90° F (32.2° C)
0
Records
Record High
23.90 °C
Record Low
-11.70 °C
Record Wind Speed
85.20 km/h
Record Monthly Snowfall
45.7 cm
Record 24-hour Snowfall
15.20 cm
Record Monthly Rainfall
213 mm
Record 24-hour Rainfall
69 mm
Record Minimum Monthly Precipitation
1.52 mm
Averages
Average High Temperature
13.90 °C
Average Low Temperature
5.00 °C
Average Mean Temp
9.40 °C
Average Dew Point
3.90 °C
Average Windspeed
18.50 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
83.0
Average Afternoon Relative Humidity
57.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
6.09
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
14
Days With Thunderstorms
1
Days With Fog
9
Days With Snow
*
Days With Lows Below Freezing
1
Days above 90° F (32.2° C)
0
Records
Record High
29.40 °C
Record Low
-1.70 °C
Record Wind Speed
70.40 km/h
Record Monthly Snowfall
5.1 cm
Record 24-hour Snowfall
2.50 cm
Record Monthly Rainfall
107 mm
Record 24-hour Rainfall
46 mm
Record Minimum Monthly Precipitation
0.76 mm
Averages
Average High Temperature
17.80 °C
Average Low Temperature
7.80 °C
Average Mean Temp
12.80 °C
Average Dew Point
6.70 °C
Average Windspeed
16.70 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
80.0
Average Afternoon Relative Humidity
54.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
4.31
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
11
Days With Thunderstorms
1
Days With Fog
8
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
*
Records
Record High
33.90 °C
Record Low
-2.20 °C
Record Wind Speed
74.10 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
122 mm
Record 24-hour Rainfall
46 mm
Record Minimum Monthly Precipitation
1.02 mm
Averages
Average High Temperature
20.60 °C
Average Low Temperature
10.60 °C
Average Mean Temp
16.10 °C
Average Dew Point
8.90 °C
Average Windspeed
16.70 km/h
Average Wind Direction
225.0
Average Morning Relative Humidity
79.0
Average Afternoon Relative Humidity
54.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
3.55
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
1
Days With Fog
8
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
35.60 °C
Record Low
3.30 °C
Record Wind Speed
51.90 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
96 mm
Record 24-hour Rainfall
46 mm
Record Minimum Monthly Precipitation
0.25 mm
Averages
Average High Temperature
23.90 °C
Average Low Temperature
12.20 °C
Average Mean Temp
18.30 °C
Average Dew Point
10.60 °C
Average Windspeed
14.80 km/h
Average Wind Direction
225.0
Average Morning Relative Humidity
79.0
Average Afternoon Relative Humidity
49.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
2.03
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
5
Days With Thunderstorms
1
Days With Fog
8
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
36.70 °C
Record Low
6.10 °C
Record Wind Speed
46.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
61 mm
Record 24-hour Rainfall
20 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
23.30 °C
Average Low Temperature
12.80 °C
Average Mean Temp
18.30 °C
Average Dew Point
11.70 °C
Average Windspeed
14.80 km/h
Average Wind Direction
203.0
Average Morning Relative Humidity
84.0
Average Afternoon Relative Humidity
51.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
2.79
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
7
Days With Thunderstorms
1
Days With Fog
12
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
37.20 °C
Record Low
6.70 °C
Record Wind Speed
57.40 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
117 mm
Record 24-hour Rainfall
41 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
20.60 °C
Average Low Temperature
10.60 °C
Average Mean Temp
15.60 °C
Average Dew Point
10.00 °C
Average Windspeed
14.80 km/h
Average Wind Direction
0.0
Average Morning Relative Humidity
87.0
Average Afternoon Relative Humidity
57.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
4.82
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
1
Days With Fog
16
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
36.70 °C
Record Low
1.70 °C
Record Wind Speed
63.00 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
150 mm
Record 24-hour Rainfall
41 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
15.00 °C
Average Low Temperature
7.20 °C
Average Mean Temp
11.10 °C
Average Dew Point
7.20 °C
Average Windspeed
16.70 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
88.0
Average Afternoon Relative Humidity
68.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.88
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
13
Days With Thunderstorms
*
Days With Fog
19
Days With Snow
*
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
0
Records
Record High
31.70 °C
Record Low
-2.20 °C
Record Wind Speed
72.20 km/h
Record Monthly Snowfall
5.1 cm
Record 24-hour Snowfall
5.10 cm
Record Monthly Rainfall
198 mm
Record 24-hour Rainfall
69 mm
Record Minimum Monthly Precipitation
0.76 mm
Averages
Average High Temperature
10.00 °C
Average Low Temperature
3.90 °C
Average Mean Temp
7.20 °C
Average Dew Point
3.90 °C
Average Windspeed
18.50 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
85.0
Average Afternoon Relative Humidity
76.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
14.97
Average Snowfall (US Only)
2.50
Daily Counts
Days With Precipitation
18
Days With Thunderstorms
1
Days With Fog
18
Days With Snow
*
Days With Lows Below Freezing
5
Days above 90° F (32.2° C)
0
Records
Record High
23.30 °C
Record Low
-14.40 °C
Record Wind Speed
107.40 km/h
Record Monthly Snowfall
45.7 cm
Record 24-hour Snowfall
20.30 cm
Record Monthly Rainfall
272 mm
Record 24-hour Rainfall
86 mm
Record Minimum Monthly Precipitation
1.78 mm
Averages
Average High Temperature
7.20 °C
Average Low Temperature
2.20 °C
Average Mean Temp
5.00 °C
Average Dew Point
1.70 °C
Average Windspeed
18.50 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
85.0
Average Afternoon Relative Humidity
79.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
14.97
Average Snowfall (US Only)
7.60
Daily Counts
Days With Precipitation
19
Days With Thunderstorms
*
Days With Fog
19
Days With Snow
2
Days With Lows Below Freezing
9
Days above 90° F (32.2° C)
0
Records
Record High
17.20 °C
Record Low
-14.40 °C
Record Wind Speed
88.90 km/h
Record Monthly Snowfall
55.8 cm
Record 24-hour Snowfall
22.80 cm
Record Monthly Rainfall
299 mm
Record 24-hour Rainfall
53 mm
Record Minimum Monthly Precipitation
3.55 mm
Waxing crescent
Rise 9:01AM
Set 1:18AM
SUNDAY NIGHT
SEA / No delays
Day
Reason
Upper Soil Moisture
Lower Soil Moisture
Sunday
Fire danger very low
27%
29%
Monday
Fire danger very low
27%
29%
Tuesday
Fire danger low
27%
29%
Wednesday
Fire danger low
27%
29%
Thursday
Fire danger very low
27%
29%
Friday
Fire danger low
27%
29%
Waxing crescent
Rise 9:01AM
Set 1:18AM
SUNDAY NIGHT
SEA / No delays
Waxing crescent
Rise 9:01AM
Set 1:18AM
SUNDAY NIGHT
SEA / No delays
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New snow min
Skiable trails open
New snow max
Skiable acres open
Primary surface conditions
Max Skiable acres open
Base depth min
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Base depth max
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Hours of operation
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