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Monthly Archives: May 2011
Possible UHI effect at Barrow Alaska – 25 May 2011
With a NE wind this morning the town of Barrow Alaska lies downwind of the Climate Reference Network site (BARRO) and upwind of the ASOS site (PABR) located on the southwest side of town. Could UHI effects explain the rather … Continue reading
Posted in Alaska
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Eureka at 80 N reaches freezing point
Yesterday (22 May 2011) Eureka on Ellesmere Island reached the freezing point for the 1st time since 9 Sept 2010 with a high temperature of 33 F. Eureka Nunavut, May 2011: DY STA TP HHMM N CIG VSBY WEA SLP … Continue reading
Posted in General
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Cold April/May 2011 in Seattle Washington
With barely more than a week to go in April/May 2011 here is the tally of days below, near, and above normal in Seattle (KSEA): 45 – below normal 7 – near normal (-1 to +1 deg F departure) 0 … Continue reading
Posted in Washington
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Wet May 2011 in Miles City Montana
Miles City Montana with 7.50 inches of precipitation since 8 May has accumulated more than 3 times their normal May precipitation in the past two weeks. Miles City’s mean annual precipitation is 13.4 inches. RECORD EVENT REPORT NATIONAL WEATHER SERVICE … Continue reading
Posted in General
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Climate change at Astoria OR
Astoria OR climate change as measured by the mean temperature (deg F) over the period of record and over the past 5 years: 57 years 1954-2010: 51.0 5 years 2006-2010: 50.9 Annual mean temperature with departure from the 57-year mean: … Continue reading
Update: Colder over Oakland, snow at Donner Pass
UPDATE: Even colder air has moved in over Oakland late this afternoon with -31 C reported at 500 hPa, the coldest May sounding in at least the past 12 years. Nearly a foot of new snow has fallen today at … Continue reading
Posted in northern California
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Snowy afternoon in mid-May at Lake Tahoe
Here’s something you don’t see very often in mid-May, falling snow and 27-30 degrees at Lake Tahoe throughout this afternoon. Here are the hourly observations from South Lake Tahoe Airport: DY STA TP HHMM N CIG VSBY WEA SLP T … Continue reading
Posted in northern California
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1.76 inches in Yakima WA today is a wet month
Yakima with 1.76 inches in the past 18 hours alone is wetter than any May since 1948 when 2.76 inches of rain fell. The 2nd wettest May total was 2010 with 1.46 inches. The total so far in 2011 is … Continue reading
Posted in Washington
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Cold over Oakland California today
-30 C at 500 hPa over Oakland CA this morning (15 May 2011) is a rather unusually cold temperature for that location. I went back and checked May over the past 12 years back to 1999 and found only one … Continue reading
Posted in northern California
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Stevens Pass snow melt-out climatology
As the Stevens Pass snowpack drops to 100 inches today (13 May 2011) for the first time since 9 March it is a good time to take a look at the climatology of snowpack melt out at Stevens Pass in … Continue reading
Posted in Washington
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