Waxing gibbous
Rise 7:53PM
Set 4:57AM
WEDNESDAY EVENING
IAD / No delays
MAY 22ND, 1987-A powerful tornado virtually wiped the small southwest Texas community of Saragosa off the map. The twister destroyed eighty- five percent of the structures in the town killing thirty persons and injuring 121 others in the town of population 183. The tornado hurled trucks and autos through adobe and wood- frame homes, with some vehicles blown 500 feet.
MAY 22ND, 1987
A powerful tornado virtually wiped the small southwest Texas community of Saragosa off the map. The twister destroyed eighty- five percent of the structures in the town killing thirty persons and injuring 121 others in the town of population 183. The tornado hurled trucks and autos through adobe and wood- frame homes, with some vehicles blown 500 feet.
MAY 22ND, 1832
Kennebec River discharges 140,000 cu. ft. per second during a flood at Waterville, ME.
MAY 21ST, 1860
A swarm of tornadoes occurred in the Ohio Valley. Tornadoes struck the cities of Louisville KY, Cincinnati OH, Chillicothe OH and Marietta OH causing a million dollars damage.
MAY 21ST, 1896
The mercury soared to 124 degrees at Salton CA to establish a U.S. record for May.
MAY 20TH, 1916
On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS.
MAY 20TH, 1957
A tornado touched down to the southwest of Kansas City and traveled a distance of seventy-one miles cutting a swath of near total destruction through the southeastern suburbs of Ruskin Heights and Hickman Mills. The tornado claimed the lives of forty-five persons, and left hundreds homeless. It was the worst weather disaster of record for Kansas City. About all that remained of one house was a small table and a fish bowl atop, with the fish still swimming about inside the bowl, rather unconcerned.
MAY 19TH, 1955
Lake Maloya NM received 11.28 inches of rain in 24 hours to establish a state record.
MAY 19TH, 1780
The infamous "dark day" in New England tradition. At noon it was nearly as dark as night. Chickens went to roost, and many persons were fearful of divine wrath. The phenomena was caused by forest fires to the west of New England.
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.
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 7:53PM
Set 4:57AM
WEDNESDAY EVENING
IAD / No delays
History
Weather Station: Washington-Dulles International Airport , VA , US
May Data
Choose another month
Averages
Average High Temperature
4.40 °C
Average Low Temperature
-6.10 °C
Average Mean Temp
-0.60 °C
Average Dew Point
-6.10 °C
Average Windspeed
20.40 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
76.0
Average Afternoon Relative Humidity
56.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
7.11
Average Snowfall (US Only)
20.30
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
*
Days With Fog
12
Days With Snow
4
Days With Lows Below Freezing
26
Days above 90° F (32.2° C)
0
Records
Record High
23.90 °C
Record Low
-27.80 °C
Record Wind Speed
100.00 km/h
Record Monthly Snowfall
73.6 cm
Record 24-hour Snowfall
27.90 cm
Record Monthly Rainfall
168 mm
Record 24-hour Rainfall
41 mm
Record Minimum Monthly Precipitation
1.02 mm
Averages
Average High Temperature
6.70 °C
Average Low Temperature
-5.00 °C
Average Mean Temp
1.10 °C
Average Dew Point
-5.60 °C
Average Windspeed
20.40 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
77.0
Average Afternoon Relative Humidity
52.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
7.11
Average Snowfall (US Only)
17.80
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
*
Days With Fog
10
Days With Snow
3
Days With Lows Below Freezing
23
Days above 90° F (32.2° C)
0
Records
Record High
26.10 °C
Record Low
-25.60 °C
Record Wind Speed
85.20 km/h
Record Monthly Snowfall
71.1 cm
Record 24-hour Snowfall
58.40 cm
Record Monthly Rainfall
147 mm
Record 24-hour Rainfall
53 mm
Record Minimum Monthly Precipitation
0.51 mm
Averages
Average High Temperature
12.80 °C
Average Low Temperature
0.00 °C
Average Mean Temp
6.70 °C
Average Dew Point
-1.10 °C
Average Windspeed
20.40 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
77.0
Average Afternoon Relative Humidity
48.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
7.87
Average Snowfall (US Only)
7.60
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
1
Days With Fog
11
Days With Snow
2
Days With Lows Below Freezing
17
Days above 90° F (32.2° C)
0
Records
Record High
31.70 °C
Record Low
-14.40 °C
Record Wind Speed
98.20 km/h
Record Monthly Snowfall
27.9 cm
Record 24-hour Snowfall
15.20 cm
Record Monthly Rainfall
147 mm
Record 24-hour Rainfall
46 mm
Record Minimum Monthly Precipitation
2.54 mm
Averages
Average High Temperature
18.30 °C
Average Low Temperature
4.40 °C
Average Mean Temp
11.70 °C
Average Dew Point
3.90 °C
Average Windspeed
20.40 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
77.0
Average Afternoon Relative Humidity
46.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
7.87
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
2
Days With Fog
11
Days With Snow
*
Days With Lows Below Freezing
6
Days above 90° F (32.2° C)
*
Records
Record High
33.30 °C
Record Low
-8.30 °C
Record Wind Speed
109.30 km/h
Record Monthly Snowfall
10.2 cm
Record 24-hour Snowfall
7.60 cm
Record Monthly Rainfall
185 mm
Record 24-hour Rainfall
53 mm
Record Minimum Monthly Precipitation
0.76 mm
Averages
Average High Temperature
23.30 °C
Average Low Temperature
10.00 °C
Average Mean Temp
17.20 °C
Average Dew Point
10.60 °C
Average Windspeed
13.00 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
82.0
Average Afternoon Relative Humidity
53.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
10.15
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
12
Days With Thunderstorms
4
Days With Fog
15
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
1
Records
Record High
36.10 °C
Record Low
-2.20 °C
Record Wind Speed
85.20 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
261 mm
Record 24-hour Rainfall
79 mm
Record Minimum Monthly Precipitation
2.03 mm
Averages
Average High Temperature
28.30 °C
Average Low Temperature
15.00 °C
Average Mean Temp
21.70 °C
Average Dew Point
16.10 °C
Average Windspeed
11.10 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
84.0
Average Afternoon Relative Humidity
54.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
9.90
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
6
Days With Fog
16
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
5
Records
Record High
37.80 °C
Record Low
2.20 °C
Record Wind Speed
118.50 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
462 mm
Record 24-hour Rainfall
279 mm
Record Minimum Monthly Precipitation
1.27 mm
Averages
Average High Temperature
30.60 °C
Average Low Temperature
17.80 °C
Average Mean Temp
24.40 °C
Average Dew Point
18.30 °C
Average Windspeed
11.10 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
85.0
Average Afternoon Relative Humidity
54.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.88
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
6
Days With Fog
19
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
11
Records
Record High
40.00 °C
Record Low
5.00 °C
Record Wind Speed
125.90 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
180 mm
Record 24-hour Rainfall
66 mm
Record Minimum Monthly Precipitation
2.28 mm
Averages
Average High Temperature
30.00 °C
Average Low Temperature
17.20 °C
Average Mean Temp
23.30 °C
Average Dew Point
17.80 °C
Average Windspeed
11.10 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
88.0
Average Afternoon Relative Humidity
55.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
10.15
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
5
Days With Fog
21
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
8
Records
Record High
40.00 °C
Record Low
3.30 °C
Record Wind Speed
109.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
272 mm
Record 24-hour Rainfall
119 mm
Record Minimum Monthly Precipitation
2.03 mm
Averages
Average High Temperature
26.10 °C
Average Low Temperature
12.80 °C
Average Mean Temp
19.40 °C
Average Dew Point
14.40 °C
Average Windspeed
11.10 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
89.0
Average Afternoon Relative Humidity
55.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.63
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
8
Days With Thunderstorms
2
Days With Fog
19
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
3
Records
Record High
37.20 °C
Record Low
-1.10 °C
Record Wind Speed
87.00 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
287 mm
Record 24-hour Rainfall
140 mm
Record Minimum Monthly Precipitation
1.52 mm
Averages
Average High Temperature
20.00 °C
Average Low Temperature
5.60 °C
Average Mean Temp
12.80 °C
Average Dew Point
7.20 °C
Average Windspeed
11.10 km/h
Average Wind Direction
180.0
Average Morning Relative Humidity
88.0
Average Afternoon Relative Humidity
52.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.38
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
8
Days With Thunderstorms
1
Days With Fog
15
Days With Snow
*
Days With Lows Below Freezing
5
Days above 90° F (32.2° C)
*
Records
Record High
32.20 °C
Record Low
-9.40 °C
Record Wind Speed
83.30 km/h
Record Monthly Snowfall
2.5 cm
Record 24-hour Snowfall
2.50 cm
Record Monthly Rainfall
234 mm
Record 24-hour Rainfall
104 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
13.90 °C
Average Low Temperature
1.10 °C
Average Mean Temp
7.80 °C
Average Dew Point
1.70 °C
Average Windspeed
18.50 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
83.0
Average Afternoon Relative Humidity
54.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.12
Average Snowfall (US Only)
2.50
Daily Counts
Days With Precipitation
9
Days With Thunderstorms
1
Days With Fog
12
Days With Snow
1
Days With Lows Below Freezing
15
Days above 90° F (32.2° C)
0
Records
Record High
28.90 °C
Record Low
-12.80 °C
Record Wind Speed
85.20 km/h
Record Monthly Snowfall
27.9 cm
Record 24-hour Snowfall
27.90 cm
Record Monthly Rainfall
198 mm
Record 24-hour Rainfall
61 mm
Record Minimum Monthly Precipitation
0.51 mm
Averages
Average High Temperature
7.20 °C
Average Low Temperature
-3.30 °C
Average Mean Temp
2.20 °C
Average Dew Point
-3.30 °C
Average Windspeed
20.40 km/h
Average Wind Direction
315.0
Average Morning Relative Humidity
78.0
Average Afternoon Relative Humidity
57.0
Typical Sky Cover
OVR
Average Precipitation (US Only)
8.12
Average Snowfall (US Only)
10.20
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
*
Days With Fog
12
Days With Snow
2
Days With Lows Below Freezing
24
Days above 90° F (32.2° C)
0
Records
Record High
25.60 °C
Record Low
-20.00 °C
Record Wind Speed
100.00 km/h
Record Monthly Snowfall
60.9 cm
Record 24-hour Snowfall
27.90 cm
Record Monthly Rainfall
170 mm
Record 24-hour Rainfall
74 mm
Record Minimum Monthly Precipitation
1.02 mm
Waxing gibbous
Rise 7:53PM
Set 4:57AM
WEDNESDAY EVENING
IAD / No delays
Day
Reason
Upper Soil Moisture
Lower Soil Moisture
Thursday
Fire danger very low
26%
27%
Friday
Fire danger low
26%
27%
Saturday
Fire danger very low
26%
27%
Sunday
Fire danger very low
26%
27%
Monday
Fire danger very low
26%
27%
Tuesday
Fire danger very low
26%
27%
Waxing gibbous
Rise 7:53PM
Set 4:57AM
WEDNESDAY EVENING
IAD / No delays
Waxing gibbous
Rise 7:53PM
Set 4:57AM
WEDNESDAY EVENING
IAD / No delays
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