Demystifying Roast Analysis: Colorimeters Versus Spectrophotometers

April 1, 2019April 2, 2019

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(Editor’s note: This is a preview of an article by Chris Hallien that appeared in the March/April 2019 issue of Roast magazine. Click here to read the full article.) Roast analysis…

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Forecast For 08/21/2019

Today's High: 74

Today's Low: 57

Tomorrows High: 79

Lots of clouds with showers and possible thunderstorms today.

ADVISORIES

HEALTH ADVISORIES: A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR HIGHER-THAN-NORMAL LEVELS OF FECAL BACTERIA AT D RIVER BEACH IN LINCOLN COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIOL THE ADVISORY IS LIFTED. HIGHER-THAN-NORMAL LEVELS OF FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. THIS APPLIES TO CHILDREN AND THE ELDERLY, WHO MAY BE MORE VULNERABLE TO ILLNESS FROM WATERBORNE BACTERIA. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN. RECREATIONAL USE HEALTH ADVISORIES ARE IN EFFECT FOR CULLABY LAKE IN CLATSUP COUNTY AND FOR UPPER KLAMATH LAKE AT EAGLE RIDGE COUNTY PARK AND ADDED THE HOWARD’S BAY AREA OF UPPER KLAMATH LAKE IN KLAMATH COUNTY DUE TO THE PRESENCE OF AS CYANOBACTERIAL (HARMFUL ALGAE) BLOOM AND CYANOTOXINS (HARMFUL ALGAE TOXINS) ABOVE RECREATIONAL GUIDELINE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE IDENTIFIED. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH COULD LEAD TO INHALATION RISK. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WHO HAVE SKIN SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH. A PRECAUTIONARY RECREATIONAL USE HEALTH ADVISORY FOR THE 2019 CYANOBACTERIAL (HARMFUL ALGAI) BLOOM SEASON REMAINS IN EFFECT FOR LAKE BILLY CHINOOK IN JEFFERSON COUNTY DUE TO CYANOBACTERIAL BLOOMS THAT ROUTINELY DEVELOP IN THE LAKE. NO BLOOMS HAVE BEEN DETECTED AT THIS TIME, BUT BLOOMS CAN DEVELOP THROUGHOUT THE SEASON AND IN AREAS THAT ARE NOT VISUALLY MONITORED BY JEFFERSON COUNTY , OREGON STATE PARKS, OR THE U.S. FOREST SERVICE. THE ADVISORY WILL REMAIN IN EFFFECT THROUGH NOVEMBER 1, 2019. A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.

Weather Pattern

An Upper Level High Pressure Ridge (Shaded “Arch” shaped area with arrows) will give way to an Upper Level Low Pressure Trough (Shaded “U” shaped area with arrows). The graphics for days 1-3 show the approaching frontal system offshore today then moving through the Pacific Northwest. The graphics for days 3-7 show the cold front dragging eastward Saturday then no new frontal systems through next Tuesday.

Eugene Area Forecast

Cloudy with a (40%) chance of AM rain, showers and a slight (20%) chance of thunderstorms and a bit cooler this afternoon and evening (0.50 in. of rain possible, possibly heavy locally), a slight (20%) chance rain late tonight (under 0.10 in. of rain possible),
A mix of clouds and sun and a bit warmer Thursday, partly cloudy at night,
Then partly cloudy and a bit warmer Friday and Friday night.
highs 74-84 lows 55-50 warming to 53 Friday night.
Mostly sunny Saturday and Sunday, clear both nights,
Sunny and a bit warmer Monday, clear Monday night,
Then sunny and a bit warmer Tuesday.
highs near 84-89 lows 54-52. (seasonal averages high 82 low 51)

Umpqua Forecast

Partly cloudy with a (40%) chance of AM rain, mostly cloudy and cooler with a (40%) chance of rain this afternoon (0.10 in. of rain possible) and tonight (under 0.10 in. of rain possible),
AM clouds, partly cloudy and a bit warmer Thursday afternoon, mostly clear at night,
Then partly cloudy and a bit warmer Friday and Friday night.
highs 77-89 lows 58-55.
Mostly sunny and a bit warmer Saturday and Sunday, mostly clear both nights,
Sunny and a bit cooler Monday, clear at night,
Then sunny and a bit warmer Tuesday.
highs 89-87 92 warming to 93 Tuesday lows 62-59 warming back to 62. (seasonal averages high 84 low 55)

Coos Bay Forecast

Mostly cloudy with AM coastal rain and rain likely (70%) this afternoon (0.25 in. of rain possible), mostly cloudy with a (40%) chance of evening coastal rain while a (40%) chance of inland rain tonight (under 0.10 in. of rain possible),
AM clouds, partly cloudy and a bit warmer Thursday afternoon, mostly clear Thursday night,
Partly cloudy and a bit warmer Friday and at night.
highs 70-75 lows near 55.
Mostly sunny and a bit warmer Saturday, mostly clear at night,
Mostly sunny Sunday, clear Sunday night,
Sunny Monday, clear Monday night,
Then sunny and a bit warmer Tuesday.
highs 76-79 lows near 55. (seasonal averages high 66 low 53)

Cascades Forecast

Cloudy and a bit cooler with a rain likely (70%) this afternoon (0.10 in. of rain possible), evening showers likely (70%), a good (50%) chance of showers late tonight,
AM clouds and sun with a slight (20%) chance of showers, A mix of clouds and sun and a bit warmer Thursday afternoon, just partly cloudy Thursday night,
AM sun, partly cloudy and a bit warmer Friday, then partly cloudy Friday night.
snow level above 8,000 ft. today through Thursday, free air freezing level above 16,000 ft. Thursday night through Friday night.
highs 68-75 lows 44-48.
Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
Then sunny Sunday, mostly clear Sunday night,
Then sunny and a bit warmer Monday and Tuesday, mostly clear Monday night.
free air freezing level 15,000 ft. rising to 16,000 ft. Saturday afternoon, above 16,000 ft. Saturday night, 16,000 ft. rising to above 16,000 ft. Sunday, then 16,000 ft. Sunday night through Tuesday.
highs 72-75 lows 46-48.

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