2012 To Break The 1998 Climate Record.
By Rod Hill on 2012-11-15
Deke Arndt, Chief of the Climate Monitoring Branch, National Climatic Data Center
After 16 consecutive months with warmer-than-normal conditions, October brought fairly average temperatures to the United States. Arctic air kept the center of the country cooler than average, while most of the coasts...
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Rod's Winter Forecast 2012 - 2013
By Rod Hill on 2012-10-15
Let me begin by saying, the skill level for seasonal forecasting is less then 20% better than pure chance or guessing. The skill does increase with strong La Nina and El Nino episodes. With that said, this winter is expected to be a Neutral or weak El Nino season, meaning equatorial water temperat...
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Water Year 2011-2012 Ends
By Rod Hill on 2012-10-01
The 2011-2012 water year and September come to an end. Despite our recent dry stretch, the water year, thanks to another wet spring and especially June, finishes with a surplus. The water year ends with: 39.73" of precipitation.
Normal Water Year 36.03" / 2011 - 2012 surplus: +3.70"
Inter...
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8th Longest Dry Streak At PDX
By Rod Hill on 2012-09-10
The .04" of rain at PDX last night ended 51 days in a row with a trace or less of rainfall, good enough for 8th place on the dry list of days with less than .01 inches. The rainfall today also ended 22 days in a row with not even a trace of rain. The streak of 22 days has been equaled nearly 10 ti...
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PDX Records Only A Trace Of Rain
By Rod Hill on 2012-09-02
August 2012 at PDX goes into the record book with a trace of rain. The lack of moisture ties the years 1998, 1970, 1967 and 1955 for the driest August on record at PDX. Back in 1885, no moisture was recorded. Normal rainfall is .67 inches. The wettest August all-time was 4.53" in 1968.
The av...
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Aug. 19th Kick-Offs Increasing Rain Chance
By Rod Hill on 2012-08-19
August 19th kicks-off the slow march towards the rainy season, which is considered to begin November 1st. According to the climate record, the following is the progression of Portland's daily rain chance.
Driest Part Of The Year: July 11th - August 18th / Daily Rain Chance 10%
August 19th - Se...
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Peak Meteor Viewing Tonight
By Rod Hill on 2012-08-12
Peak viewing of the Perseid Meteor shower tonight around 9:00 pm. Dark areas in the country could see 40-60 meteors per hour. Visibility near the city lights will be closer to 10-20 at most. The meteors, often the size of a grain of sand produce amazing light as they enter the earth's atmosphere....
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Solar Flare Expected Saturday
By Rod Hill on 2012-07-14
REVISED FORECAST: The CME launched toward Earth by yesterday's X-flare is moving faster than originally thought. Analysts at the Goddard Space Weather Lab have revised their forecast accordingly, advancing the cloud's expected arrival time to 09:17 UT (5:17 am EDT) on Saturday, July 14th. Weekend...
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Near Record June Rainfall
By Rod Hill on 2012-07-02
Here is a look back at another cool and wet June:
PDX Rainfall: 4.10" / 2nd wettest in history, behind June of 2012, 4.27" Normal for month is 1.70"
Average High: 69.7 degrees / 3.8 degrees below normal
Average Low: 52.7 degrees / slightly below normal, -0.9 degrees
Mean Temp: 61.2 degre...
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Summer Begins 4:09 p.m.
By Rod Hill on 2012-06-20
I was thinking yesterday, that the start of summer is truly more special for the Northwest than most of the country. For most, summer weather, meaning sunny, hot days began weeks ago. Summer fun in warm lakes, boating with sun screen and complaining about 90 degree heat has been going on for weeks...
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