Weather Alert in Washington
Flood Warning issued March 14 at 8:33PM PDT until March 16 at 6:11AM PDT by NWS Seattle WA
AREAS AFFECTED: Grays Harbor, WA; Thurston, WA
DESCRIPTION: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Washington... Chehalis River Above Grand Mound affecting Thurston and Grays Harbor Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Chehalis River above Grand Mound. * WHEN...Until Monday morning. * IMPACTS...At 142.5 feet, the Chehalis River in Thurston County will flood several roads in Independence Valley with swiftly moving water including SR-12 and James, Independence, Moon and Anderson Roads. Flood waters will cut off access to and from Chehalis Reservation and inundate nearby farm lands. Some residential structures may be threatened. * ADDITIONAL DETAILS... - At 8:00 PM PDT Saturday the stage was 142.5 feet. - Flood stage is 141.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM PDT Saturday was 142.5 feet. - Forecast...The river is expected to rise to a crest of 142.5 feet late this evening. The river will then recede enough to return to minor flood stage by early Sunday morning. It will continue to recede before falling below flood stage by late Sunday evening. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 445 AM PDT.
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Current conditions powered by WeatherAPI.com
