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2010-2011 WINTER WEATHER WRAP UP Mark Nelsen. WINTER 2010-2011 FUN BEGINNING AND END, BUT “VANILLA” IN THE MIDDLE!

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Presentation on theme: "2010-2011 WINTER WEATHER WRAP UP Mark Nelsen. WINTER 2010-2011 FUN BEGINNING AND END, BUT “VANILLA” IN THE MIDDLE!"— Presentation transcript:

1 WINTER WEATHER WRAP UP Mark Nelsen

2 WINTER FUN BEGINNING AND END, BUT “VANILLA” IN THE MIDDLE!

3 THE USA VIEW

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7 THE 3 MONTH PERIOD

8 Northwest Winter Temps (the past 100 years)

9 UPPER LEVEL PATTERNS

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16 EF2 Tornado (Winds mph) EF2 Tornado (Winds mph) 2 nd Strongest Oregon Tornado 1950-present (SPC tornado database) December 8, 1993, near Newberg in Washington County June 11, 1968, 30 miles north of Enterprise in Wallowa County Damage Estimated at $1.1 Million 0 Fatalities 2 Minor Injuries 50 Structures Damaged 30+ Large trees uprooted or snapped Path Length 5 miles though tornado was not on the ground the entire length Path Width approximately 150 yards

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27 = PDX 1996-Present = PQR

28 Downtown Data Only

29 Mountain 5,400’ Courtesy NRCS – Oregon Office

30 Mountain 3,000’ Courtesy NRCS – Oregon Office

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37 ---AVERAGE

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