#Seattle precipitation totals code
#Seattle precipitation totals plus

Recent analysis has shown that the probability of landslides occurring on a day when the cumulative threshold has been exceeded is roughly 10%. It is interpreted as a lower-bound threshold below which the specified level of landslide activity does not occur or occurs only rarely. Precipitation (past 24 hours from 11:53:00) 0.01: 5.50-Dew Point (☏) Actual. Rain Snow Mix 9:00 AM - 4:00 PM Type Accumulation No Precipitation 0.00in Accumulation Total Liquid Accumulation: Forecast (in) 0.00 in Next 7 Hours 0.00 in 24 Hours 24 hour time is from.

#Seattle precipitation totals plus

Between 3.5 and 5.2 inches total precipitation during any 18-day period (last 3 days plus the previous 15 days) are required to exceed the cumulative threshold. However, occasionally there is a moderate snowfall. Notice that most of the cities with more rainfall are located east of the Mississippi River, as shown in the map below made by climatologist Brian Brettschneider. Snow in Seattle is rare: on average, 16 centimeters (6.3 in) of snow fall per year.

Precipitation (in. Temperature (✯) Relative Humidity Wind Chill (☏). Annually, total precipitation averages 39.3 in (998 mm), with winter being the wettest season and July the driest month.

#Seattle precipitation totals code

The threshold was visually identified after plotting antecedent 3-day and prior 15-day cumulative precipitation amounts associated with landslides that were part of events with 3 or more landslides in a 3-day period. At 37.7 inches of precipitation annually, Seattle ranks 32nd among the nation's 50 largest cities. Seattle, Seattle-Tacoma International Airport: Enter Your 'City, ST' or zip code : metric: D a t e Time (pdt) Wind (mph) Vis. The cumulative precipitation threshold for the occurrence of landslides in the Seattle area is based on an analysis of historical landslide and precipitation data from the period 1933 - 1997. The Cumulative Precipitation Threshold is (3-day Precipitation)=3.5 - 0.67*(15-day Precipitation).