Reporting Station : O.R. Tambo International Airport, Gauteng, South Africa
14°C
Clear. Refreshingly cool.
41%
Humidity
1°C
Dew Point
13°C
Comfort Level
9 km
Visibility
1027.10 mb
Barometric Pressure
Air Quality
Waxing gibbous
Rise 1:59PM
Set 1:06AM
SATURDAY MORNING
AJS / No delays
MAY 18TH, 1980-Mount Saint Helens (in Washington State) erupted spewing ash and smoke sixty-three thousand feet into the air. Heavy ash covered the ground to the immediate northwest, and small particles were carried to the Atlantic coast.
MAY 18TH, 1980
Mount Saint Helens (in Washington State) erupted spewing ash and smoke sixty-three thousand feet into the air. Heavy ash covered the ground to the immediate northwest, and small particles were carried to the Atlantic coast.
MAY 18TH, 1825
A tornado (said to have crossed all of the state of Ohio) smashed into the log cabin settlement of Burlington, northeast of Columbus.
MAY 17TH, 1883
A three day flood in the Black Hills of western South Dakota resulted in a million dollars damage at Rapid City.
MAY 17TH, 1979
A reading of 12 degrees at Mauna Kea Observatory established an all-time record low for the state of Hawaii.
MAY 16TH, 1952
High winds in the Wasatch Canyon of Utah struck Ogden and Brigham City. Winds at Hill Air Force Base gusted to 92 mph.
MAY 16TH, 1874
The Mill Creek disaster occurred west of Northhampton MA. Dam slippage resulted in a flash flood which claimed 143 lives, and caused a million dollars property damage.
MAY 15TH, 1834
The Northern Atlantic Coast States were in the midst of their greatest May snowstorm of record. The hills around Newbury VT were covered with two to three feet of snow.
MAY 15TH, 1972
The worst ice jam flooding of memory for long-time residents took place along the Kuskokwim River and Yukon River in Alaska. It was the first time since 1890 that the two rivers "flowed as one". The towns of Oscarville and Napaskiak were completely inundated.
MAY 14TH, 1896
The mercury plunged to 10 degrees below zero at Climax CO. It was the lowest reading of record for the U.S. during the month of May.
MAY 14TH, 1898
A severe thunderstorm, with some hailstones up to 9.5 inches in circumference, pounded a four mile wide path across Kansas City MO. South-facing windows were broken in nearly every house in central and eastern parts of the city, and several persons were injured. An even larger hailstone was thought to have been found, but it turned out to be a chunk of ice tossed out the window of a building by a prankster.
MAY 13TH, 1930
A man was killed when caught in an open field during a hailstorm northwest of Lubbock TX.
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 gibbous
Rise 1:59PM
Set 1:06AM
SATURDAY MORNING
AJS / No delays
History
Weather Station: Pretoria Airport , 06 , SF
May Data
Choose another month
Averages
Average High Temperature
27.80 °C
Average Low Temperature
19.40 °C
Average Mean Temp
23.30 °C
Average Dew Point
14.40 °C
Average Windspeed
9.30 km/h
Average Wind Direction
45.0
Average Morning Relative Humidity
77.0
Average Afternoon Relative Humidity
47.0
Typical Sky Cover
BRK
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
11
Days With Thunderstorms
8
Days With Fog
*
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
3
Records
Record High
36.10 °C
Record Low
12.20 °C
Record Wind Speed
92.60 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
27.20 °C
Average Low Temperature
18.90 °C
Average Mean Temp
23.30 °C
Average Dew Point
14.40 °C
Average Windspeed
9.30 km/h
Average Wind Direction
90.0
Average Morning Relative Humidity
79.0
Average Afternoon Relative Humidity
47.0
Typical Sky Cover
BRK
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
4
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
36.10 °C
Record Low
12.80 °C
Record Wind Speed
103.70 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
26.10 °C
Average Low Temperature
17.80 °C
Average Mean Temp
21.70 °C
Average Dew Point
13.30 °C
Average Windspeed
9.30 km/h
Average Wind Direction
90.0
Average Morning Relative Humidity
80.0
Average Afternoon Relative Humidity
48.0
Typical Sky Cover
SCT
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
4
Days With Fog
2
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
33.90 °C
Record Low
7.80 °C
Record Wind Speed
92.60 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
23.90 °C
Average Low Temperature
14.40 °C
Average Mean Temp
18.90 °C
Average Dew Point
10.00 °C
Average Windspeed
9.30 km/h
Average Wind Direction
270.0
Average Morning Relative Humidity
77.0
Average Afternoon Relative Humidity
42.0
Typical Sky Cover
SCT
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
6
Days With Thunderstorms
3
Days With Fog
1
Days With Snow
0
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
74.10 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
21.70 °C
Average Low Temperature
10.00 °C
Average Mean Temp
16.10 °C
Average Dew Point
5.60 °C
Average Windspeed
9.30 km/h
Average Wind Direction
270.0
Average Morning Relative Humidity
75.0
Average Afternoon Relative Humidity
35.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
2
Days With Thunderstorms
1
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
5
Days above 90° F (32.2° C)
0
Records
Record High
28.30 °C
Record Low
2.80 °C
Record Wind Speed
37.00 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
18.30 °C
Average Low Temperature
6.70 °C
Average Mean Temp
12.80 °C
Average Dew Point
2.20 °C
Average Windspeed
9.30 km/h
Average Wind Direction
270.0
Average Morning Relative Humidity
72.0
Average Afternoon Relative Humidity
35.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
2
Days With Thunderstorms
*
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
20
Days above 90° F (32.2° C)
0
Records
Record High
28.90 °C
Record Low
0.00 °C
Record Wind Speed
48.10 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
18.90 °C
Average Low Temperature
6.70 °C
Average Mean Temp
12.80 °C
Average Dew Point
1.70 °C
Average Windspeed
11.10 km/h
Average Wind Direction
270.0
Average Morning Relative Humidity
70.0
Average Afternoon Relative Humidity
33.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
22
Days above 90° F (32.2° C)
0
Records
Record High
25.00 °C
Record Low
0.60 °C
Record Wind Speed
46.30 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
21.10 °C
Average Low Temperature
9.40 °C
Average Mean Temp
15.60 °C
Average Dew Point
2.80 °C
Average Windspeed
13.00 km/h
Average Wind Direction
270.0
Average Morning Relative Humidity
66.0
Average Afternoon Relative Humidity
30.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
2
Days With Thunderstorms
1
Days With Fog
*
Days With Snow
0
Days With Lows Below Freezing
8
Days above 90° F (32.2° C)
0
Records
Record High
28.90 °C
Record Low
1.10 °C
Record Wind Speed
125.90 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
24.40 °C
Average Low Temperature
13.90 °C
Average Mean Temp
19.40 °C
Average Dew Point
5.60 °C
Average Windspeed
13.00 km/h
Average Wind Direction
45.0
Average Morning Relative Humidity
65.0
Average Afternoon Relative Humidity
30.0
Typical Sky Cover
CLR
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
4
Days With Thunderstorms
2
Days With Fog
*
Days With Snow
0
Days With Lows Below Freezing
1
Days above 90° F (32.2° C)
*
Records
Record High
32.80 °C
Record Low
3.90 °C
Record Wind Speed
111.10 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
25.60 °C
Average Low Temperature
15.60 °C
Average Mean Temp
21.10 °C
Average Dew Point
9.40 °C
Average Windspeed
11.10 km/h
Average Wind Direction
45.0
Average Morning Relative Humidity
71.0
Average Afternoon Relative Humidity
38.0
Typical Sky Cover
SCT
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
7
Days With Thunderstorms
6
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
1
Records
Record High
33.90 °C
Record Low
6.10 °C
Record Wind Speed
92.60 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
26.10 °C
Average Low Temperature
16.70 °C
Average Mean Temp
21.70 °C
Average Dew Point
11.70 °C
Average Windspeed
9.30 km/h
Average Wind Direction
45.0
Average Morning Relative Humidity
76.0
Average Afternoon Relative Humidity
44.0
Typical Sky Cover
SCT
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
6
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
35.00 °C
Record Low
8.90 °C
Record Wind Speed
55.60 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
27.20 °C
Average Low Temperature
18.30 °C
Average Mean Temp
22.80 °C
Average Dew Point
13.90 °C
Average Windspeed
9.30 km/h
Average Wind Direction
45.0
Average Morning Relative Humidity
78.0
Average Afternoon Relative Humidity
46.0
Typical Sky Cover
BRK
Average Precipitation (US Only)
*
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
11
Days With Thunderstorms
8
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
36.10 °C
Record Low
11.70 °C
Record Wind Speed
44.40 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
0 mm
Record 24-hour Rainfall
0 mm
Record Minimum Monthly Precipitation
* mm
Waxing gibbous
Rise 1:59PM
Set 1:06AM
SATURDAY MORNING
AJS / No delays
Day
Reason
Upper Soil Moisture
Lower Soil Moisture
Saturday
Fire danger extreme
8%
11%
Sunday
Fire danger high
8%
11%
Monday
Fire danger extreme
7%
11%
Tuesday
Fire danger extreme
7%
10%
Wednesday
Fire danger high
7%
10%
Thursday
Fire danger high
7%
10%
Waxing gibbous
Rise 1:59PM
Set 1:06AM
SATURDAY MORNING
AJS / No delays
Waxing gibbous
Rise 1:59PM
Set 1:06AM
SATURDAY MORNING
AJS / No delays
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New snow min
Skiable trails open
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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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