Wednesday, 09 December 2015 00:00

Dec. 9th Weather Updates

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Ok, here is this mornings update to include the local rivers as well as the forecasted weather pattern.  These come from the County Emergency Management Office.  Sorry if information about your river is not included. 


FLOOD WATCHhas been issued for Grays Harbor County. Heavy rain continues in area mountains, giving rise to flooding concerns along all area rivers.


CHEHALIS RIVER â€“ The River is under a FLOOD WARNING and rising. It has reached flood stage (21’ at Porter) and is expected to crest at 23.13 feet @ 10 pmThursdayand then slowly recede Sunday morning.Moderate flooding will impact numerous farms and roads including SR 12 in the Rochester to Oakville Area as well as near Porter. The crest will last nearly 24 hours.

SATSOP RIVER â€“ The Satsop River is under a FLOOD WARNING. The Satsop River has crested and is receding quickly. It should fall below flood stage @ 11 am today.


Sandbags will be available for all residents at the Grays Harbor County Road Shops between 8am  & 3:30pm daily.

Elma – 901 E. Main Street, Elma WA

Copalis Crossing – 1623 Ocean Beach Rd., Copalis Crossing WA

Cosmopolis – 632 4th St. Cosmopolis WA

Wednesday, December 9, 2015 â€“ 6 am


Flood Warning, Wind Advisory, High Wind Watch,

Coastal Flood Watch and Flood Watch Issued

The National Weather Service in Seattle has indicated numerous weather patterns will continue to impact the region through the weekend. Strong winds and rain can be expected throughout the week. Rainfall over the last 4 days ranged from 4” – 10” at the coast, and 2” – 7’ inland. Mountain ranges have received very heavy rainfall producing moderate to major flooding issues on many area rivers(Satsop & Chehalis).

Many regional landslides have occurred and continuedrainfall will contribute to landslide possibilities into next week.

The Weather service also alerted us to potential Coastal Flooding Wednesday through Thursday.  Low atmospheric pressures, the Chehalis River above flood stage and a storm impacting us Wednesday into Thursday will heighten the flooding impact to the region. High astronomical high tides could reach 2-3 feet above the predicted levels. (4 foot anomalies are possible).Large surf will occur along our coast Wednesday night andThursday, creating coastal flooding and severe erosion and prevent the flood waters from flowing to sea. Flood impacts will be dependent upon the time of high tide and the arrival of the storm.



A Coastal Flood Watch is in effect from 9 am today through Thursday afternoon.  The strong and high surf along the coast Wednesday and Thursday will prevent flow from the Chehalis River into Grays Harbor increasing flooding risk in the Aberdeen area. The astronomical tides, storm surge and atmospheric pressures will contribute to 2-3 feet or higher tidal levels above the projected tides in all coastal areas, (4 foot anomalies are possible).

Coastal flooding will occur during the times of high tideWednesday & Thursday.

WIND ADVISORY – ends at 8am today

WIND ADVISORYhas been issued for the Central Coast, (Grays Harbor County), from this evening into earlyWednesday morning. Winds will increase to 20-25 mph sustained, gusting to 45 mph.


HIGH WIND WATCHhas been issued for the Central Coast, (Grays Harbor County), from midnight tonight until9pm Thursday evening. Winds will increase to 25-40 mph sustained, gusting to 60 mph.



Read 1970 times Last modified on Wednesday, 09 December 2015 07:51

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