Here is my weekly weather quiz question. What is  “Staccato Lightning?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

An upper level high (Shaded “Arch” shape with blue arrows) takes over again through the weekend into next week. A frontal system will be pushing through the Pacific Northwest Tuesday cooling us down Look for possible showers behind the front on Wednesday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 17 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM SATURDAY AM THROUGH SUNDAY EVENING FOR  THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OEGON, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY AND THE UPPER HOOD RIVER VALLEY.
• A HEAT ADVISORY IS IN EFFECT FROM 2 PM SATURDAY THROUGH 11 PM SUNDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY, AND THE THE SOUTHERN OREGON CASCADES.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy tonight,
• Partly cloudy Friday AM, sunny and much warmer in the afternoon, clear at night,
• Sunny and excessively hot Saturday, mostly clear Saturday night,
• Mostly sunny and not quite as hot Sunday, then partly cloudy Sunday night.
• lows 52-62 cooling to 56 Sunday night highs 88-97 cooling a bit to near 95 Sunday.
• Partly cloudy Monday AM, mostly sunny and cooler in the afternoon, partly cloudy and cooler Monday night through Tuesday evening, mostly cloudy late at night,
• A mix of clouds and sun and a bit cooler Wednesday, partly cloudy in the evening, then mostly cloudy with a slight (20%) chance of showers late Wednesday night and Thursday.
• highs 86-72 lows 52-49. (seasonal averages high 70 low 46.)

_____

Eugene-Springfield Pollen Count:

Grass………. Very High (246)

Trees………. Moderate (51)

Last Counted: 6/2/16

Data Courtesy of Oregon Allergy Associates.

___________________

Forecast for Roseburg:

• Mostly cloudy this evening, partly cloudy late tonight,
• Sunny and a bit warmer Friday, clear at night,
• Sunny and excessively hot Saturday, mostly clear at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Sunday afternoon and Sunday night.
• lows 57-62 cooling to 59 Sunday night highs 92-100 cooling to 98 Sunday.
• Partly cloudy with a slight (20%) chance of thunderstorms and a bit cooler Monday and in the evening, partly cloudy and a bit cooler late late Monday night through  Wednesday evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night and Thursday AM, then partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday afternoon.
• highs 92-72 lows 56-50. (seasonal averages high 73 low 50).

________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy this evening, partly cloudy late tonight,
• Sunny and a bit warmer Friday and Saturday, clear Friday night, mostly clear Saturday night,
• Then partly cloudy Sunday and Sunday night.
• lows 53-57 cooling back to 53 Sunday night highs 69-66.
• Partly cloudy and a bit cooler Monday through Tuesday, mostly cloudy at night and Wednesday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night and Thursday AM, then partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday afternoon.
• highs 62-60 lows 54-50. (seasonal averages high 60 low 49)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy this evening, partly cloudy late tonight,
• Mostly sunny and a bit warmer Friday, clear at night,
• Sunny and warmer Saturday, mostly clear at nights,
• Mostly sunny in the AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Sunday afternoon and evening, then a slight (20%) chance of showers late Sunday night.
• free air freezing level 13,000 ft. tonight, 14,000 ft.  Friday, 15,000 ft. Friday night through Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
• lows 42-57 cooling to 55 Sunday night highs 79-86 cooling to 84 Sunday.
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of AM showers, a good (50%) chance of showers and thunderstorms and cooler Monday afternoon, partly cloudy with a good (50%) chance of  evening showers and thunderstorms, a slight (20%) chance of showers late Monday night,
• A mix of clouds and sun and cooler with a slight (20%) chance of showers and thunderstorms Tuesday, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, just partly cloudy late at night,
• A mix of clouds and sun and cooler Wednesday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Thursday.
• snow level above 8,000 ft. Monday through Tuesday night, free air freezing level 10,000 ft. Wednesday, snow level 7,000 ft. Wednesday night, 7,500 ft.
• highs 79-60 lows 47-40.

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________