2.00″ In One Hour! Flooding Rain, but No Thunder This Evening

June 25, 2014

Here are the final numbers from this evening’s deluge:

MarkRain_WestMetroDownpours

Notice the really heavy stuff (1.00″ or more) was centered along the west slope of the West Hills from Forest Heights down to Garden Home.  That includes the western edge of Portland and eastern part of Beaverton.  The highest total comes from a home weather station located just south of US 26 east of OR 217.  That station recorded 2.05″ from 5:40pm to 6:40pm, plus or minus a few hundredths.  That is officially a Gully-Washer, or at least that’s what I’ve decided.  This is what you shouldn’t do…drive into a flooded area:

91ST AND CANYON VIEWER PHOTO

This was the result of a car driving through water under US26 on Baltic Avenue on the westside…

Camera-LiveODOT

muddy water up above the doorline.

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At 10pm the driver said the water was up to his knees!

There was another area of heavy showers on the east side of Vancouver and then up into Battle Ground.  I saw some 1.00 to 1.50″ totals in isolated spots up there.  But check out the official totals at the airport observing sites

PLOT_Rain_Metro_Autoplot

Almost nothing (or nothing) fell in Scappoose, Hillsboro, Aurora, and Troutdale.

Back to regular showers the next few days, then warmer the early part of next week.  Initial signs are a trough approaching as we head towards the 4th…

Chief Meteorologist Mark Nelsen


Flooding Rain Westside

June 25, 2014

7:15pm…

Take a look at the rain totals from the heavy showers along the West Hills.  The map is from WeatherUnderground

rainmap

From 5-7pm some areas received 1-2″ of rain!   KPTV is located on Highway 26 just east of the Cornell exit…we received .38″, but you can see 5 times that fell just a couple miles to the east.  We were watching two flooded underpasses at the 26/217 interchange through the 6pm show.

Expect more showers this evening, and once it rains in your neighborhood it’ll suddenly turn very humid!

Chief Meteorologist Mark Nelsen


Showers Popping Up…Wet Night Ahead

June 25, 2014

At 3pm showers and even a lone thunderstorm popping up over the Coast Range and Cascades

Luckily Sophie and I saw 00z models last night keeping us dry most of the day in the metro area and made a dramatic change to the forecast (towards dry).  I think the showers will just gradually fill in through the evening hours with a slight chance of thunder.

We’ve got a wet system on Friday too, plus leftover showers in onshore flow Saturday.  After that we get at least 3 days of warmer than average summer weather the beginning of next week.  Notice the jump in 850mb temps on both the 12z ECMWF and 12z GFS ensemble charts.  Ensemble means are both right around +15 Monday and Tuesday, which supports mid 80s in late June or early July.  Quite a bit of variability (spread in ensemble members) on a cool trough approaching for…4TH OF JULY!  We’ll see how that goes.

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tseries_850t_000-384_Portland

Chief Meteorologist Mark Nelsen