Tag Archives: Kitsap Peninsula

Kitsap weather shifts to unusual patterns over past three months

“Average, very average.” That’s how things were going for the first quarter of Water Year 2019, which began in October and ran through the end of last year (Water Ways, Jan. 4). But the second quarter, which began in January, presented an uncharacteristic upheaval, as various portions of the Kitsap Peninsula went their own way.

We’ve talked before about how Southwest Kitsap typically has twice the rainfall as North Kitsap. But even the patterns of rainfall have been different the past three months, and you can’t compare these areas to anywhere else. Let’s take them one at a time:

Hansville: Representing the north end of the peninsula, Hansville received 2.5 inches of precipitation in January, well below the 4.4-inch average for the month. February followed with a little below average, 2.8 compared to 3.2 inches. Like January, March was quite low, with 1.1 inches compared to a 3.5-inch average. In the first chart (click to enlarge), you can see this water year’s rainfall total (blue line) slipping below average (pink line).

Silverdale: Representing Central Kitsap, Silverdale received 5.9 inches of rain in January, somewhat below the 7.2-inch average. The gap widened in February, when 3.4 inches of rain fell — below the average 4.9 inches. In March, the 0.8 inches of precipitation was even below dry Hansville’s 1.1 inches and way below 5.6 inches — the March average for Silverdale. In the second chart (click to enlarge), this water year’s rainfall has fallen below the average (pink line) and even below last year’s below-average precipitation (orange line).

Holly: Representing Southwest Kitsap, Holly was about average for January, with 11.6 inches of rain compared to an average of 12.8. But if the gap was wide between February’s rainfall and the monthly average in Silverdale, it was wider in Holly, where the 4.2 inches of rainfall was just half of the 8.3-inch monthly average. And rainy Holly just about dried up in March, when the area seemed more like the north end during a drought. The 1.2 inches of precipitation that fell on Holly in March was just 13 percent of the average 9.1-inches. The chart (click to enlarge) shows the drop from about average to well below average in just two months.

I can’t easily describe the mixed pattern across the Kitsap Peninsula, but the lack of rainfall is part of an overall picture for Western Washington, which has been officially declared “abnormally dry” on the Drought Monitor managed by the Natural Resources Conservation Service. As you can see on the map, the entire region was below 50 percent of average rainfall for March.

The drought picture could change quickly with anticipated April showers — actually RAIN — that should arrive late tonight or tomorrow morning throughout the region, according to the latest forecast by the National Weather Service. Rain is expected through Saturday, when the weather changes to mostly cloudy with a continuing chance of showers through next Tuesday.

Weak El Nino conditions are expected to continue in our area throughout the spring and into summer, bringing warmer- and drier-than-average conditions to the Northwest, according to the National Oceanic and Atmospheric Administration’s ENSO Adviser and the State Climatologist’s Office.

Low streamflows have constrained the salmon migration this fall

If you are hosting out-of-town visitors this Thanksgiving weekend, it might be a good time to take them salmon-watching — or go by yourself if you get the urge to see one of nature’s marvelous phenomena.

Rainfall in Hansville. Blue line shows current trend.
Graph: Kitsap Public Utility District

Kitsap County’s Salmon Park on Chico Way near Golf Club Road tops my list of places to watch salmon. Expect to see plenty of dead fish as well as live ones, as we have apparently passed the peak of the run.

Dogfish Creek near Poulsbo also has a fair number of chum at this time, with a good viewing spot at the north end of Fish Park. Gorst Creek and other streams in Sinclair Inlet are known for their late runs of chum salmon, which are likely to be spotted right up until Christmas at Otto Jarstad Park.

Continue reading

Ongoing lack of rainfall raises concerns for chum, coho salmon

We’ve just gone through one of the driest five-month periods on record in Kitsap County, yet the total precipitation for entire water year was fairly close to average.

Water year 2018, which ended Sunday, offers a superb example of the extreme differences in precipitation from one part of the Kitsap Peninsula to another:

  • In Hansville — at the north end of the peninsula — the total rainfall for the year reached 35.2 inches, about 3.5 inches above average.
  • In Silverdale — about midway from north to south — the total rainfall was recorded as 43.1 inches, about 5 inches below average.
  • In Holly — near the south end — the total rainfall came in at 82 inches, about 3.3 inches above average.

The graphs of precipitation for the three areas show how this year’s rainfall tracked with the average rainfall through the entire year. The orange line depicts accumulated rainfall for water year 2018, while the pink line represents the average. Click on the images to enlarge and get a better view.

Continue reading

Dry weather started early this year amid cloudy conditions

UPDATE:
July 5. Greg Johnson, who lives in Hansville and manages the Skunk Bay Weather station there, said the unusually high rainfall in June for Hansville, compared to the rest of the peninsula, was the result of the Puget Sound convergence zone settling over the area on several occasions. Weather conditions brought localized squalls during the month, he said, adding, “This is very unusual for us.”

The reading at Greg’s weather station, 1.98 inches for the month of June, was somewhat lower than the 2.26 inches recorded at Kitsap PUD’s weather station in Hansville.
—–

Cool, often cloudy conditions have helped obscure the fact that very little rain has fallen on the Kitsap Peninsula over the past two months.

Precipitation in Holly (click to enlarge)

Now that we are in the fourth quarter of the water year, we can see that rainfall levels for this year will be close to average for most areas on the peninsula. What might not be recognized, however, is that April was well above average, while May and June were well below average.

Continue reading