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Meteorology 415

Meteorology 415. Contest 3 Yakima, WA and The Dalles , OR November 16, 2011. Yakima, WA. Yakima, WA.

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Meteorology 415

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  1. Meteorology 415 Contest 3 Yakima, WA and The Dalles, OR November 16, 2011

  2. Yakima, WA

  3. Yakima, WA FAA Identifier: YKM Lat/Long: 46-34-05.4000N / 120-32-38.6000W46-34.090000N / 120-32.643333W46.5681667 / -120.5440556(estimated) Elevation: 1099 ft. / 335.0 m (surveyed) Variation: 16E (2010) From city: 3 miles S of YAKIMA, WA

  4. Yakima Observations • KYKM 162353Z 00000KT1 1/2SM -SN BR OVC005 00/M02 A3003 RMK AO2 SNE15B33 SLP183 P0000 60012 • T00001017 10006 21006 56022 $= • KYKM 170053Z 00000KT 4SM UP BR BKN005 BKN012 OVC040 M01/M02 A3000 RMK AO2 UPB46SNE42 SLP173 • P0000 T10061017 $= • KYKM 170053Z COR 00000KT 4SM UP BR BKN008 OVC040 M01/M02 A3000 RMK AO2 UPB46SNE42 SLP173 • P0000 T10061017 $= • KYKM 170053Z 00000KT 4SM UP BR BKN005 BKN012 OVC040 M01/M02 A3000= • KYKM 170131Z 00000KT 3SM BR BKN008 OVC014 M01/M02 A2997 RMK AO2 UPE0056 CIG 005V010 P0000 $= • KYKM 170153Z 00000KT 3SM BR BKN008 OVC014 M01/M01 A2996 RMK AO2 SFC VIS 4 UPE0056 SLP157 • P0000 T10061011 $= • KYKM 170253Z 00000KT 6SM BR BKN006 OVC012 M01/M02 A2991 RMK AO2 PRESFR SLP142 60000 • T10061017 58040 $= • KYKM 170353Z 00000KT 5SM BR OVC010 M01/M02 A2987 RMK AO2 SLP128 T10061017 $= • KYKM 170453Z 26003KT 5SM BR OVC010 M01/M02 A2982 RMK AO2 PRESFR SLP111 T10061017 $= • KYKM 170519Z 00000KT 5SM BR OVC008 M01/M02 A2980 RMK AO2 $= • KYKM 170553Z 00000KT 5SM BR OVC008 M01/M02 A2977 RMK AO2 CIG 006V010 SLP093 60000 T10111022 • 10000 21011 58045 $=

  5. Yakima Observations • KYKM 170553Z 00000KT 5SM BR OVC008 M01/M02 A2977 RMK AO2 CIG 006V010 SLP093 60000 T10111022 10000 21011 58045 $= • KYKM 170653Z AUTO 00000KT 4SM UP BR OVC008 M01/M02 A2972 RMK AO2 UPB46 SLP076 P0000 T10061017 $= • KYKM 170753Z AUTO 29003KT 5SM BR OVC008 00/M02 A2971 RMK AO2 UPE53 CIG 006V012 SLP070 P0003 T00001017 400061078 $= • KYKM 170803Z AUTO 16005KT 4SM UP BR FEW006 BKN011 OVC045 M01/M02 A2969 RMK AO2 UPB0756 P0000 $= • KYKM 170753Z AUTO 29003KT 5SM BR OVC008 00/M02 A2971= • KYKM 170803Z AUTO 16005KT 4SM UP BR FEW006 BKN011 OVC045 M01/M02A2969= • KYKM 170820Z AUTO 12009KT 3SM FZRA BR FEW007 BKN047 OVC060 M01/M02 A2964 RMK AO2 UPB0756E14FZRAB14 PRESFR P0003 $= • KYKM 170820Z AUTO 12009KT 3SM FZRA BR FEW007 BKN047 OVC060 M01/M02A2964= • KYKM 170827Z AUTO 36009G14KT 3SM -FZRA BR FEW004 SCT012 BKN055 00/M02 A2967 RMK AO2 UPB0756E14FZRAB14 P0003 $= • KYKM 170827Z AUTO 36009G14KT 3SM -FZRA BR FEW004 SCT012 BKN05500/M02 A2967= • KYKM 170837Z AUTO 00000KT 4SM -FZRA BR FEW004 BKN012 BKN050 00/M01 A2968 RMK AO2 UPB0756E14FZRAB14 P0003 $= KYKM 170853Z AUTO 35003KT 5SM BR BKN007 OVC014 00/M02 A2967 RMK AO2 UPB0756E14FZRAB14E41 SLP058 P0003 60006 T00001017 56034 $=

  6. Synoptic Pattern

  7. Synoptic Pattern

  8. Surface Analysis

  9. Radar

  10. Verifications

  11. Standings for Yakima, WA

  12. COMPARE

  13. Standings for Yakima, WA

  14. Up Close and Personal

  15. Yakima, WA – Lessons Learned • Classic case of cold air damming due to pressure falls on the west side of the Cascades inducing a light easterly flow from the interior of Washington and Oregon. • The shape of the valleys makes a huge difference in the damming. • Dry enough air present to allow evaporational cooling – models only do okay in this case.

  16. The Dalles, OR

  17. The Dalles • The Dalles ( /ˈdælz/) is the largest city and county seat of Wasco County, Oregon, United States. The name of the city comes from the French word dalle (meaning either "sluice" or "flagstone" and referring to the columnar basalt rocks carved by the river,[2][3] what the French-Canadian employees of the North West Company called the now-inundated rapids of the Columbia River between the present-day city and Celilo Falls. The population was 12,156 at the 2000 census and was estimated at 12,314 in 2009.

  18. The Dalles, OR FAA Identifier: DLS Lat/Long: 45-37-06.8000N / 121-10-02.4000W45-37.113333N / 121-10.040000W45.6185556 / -121.1673333(estimated) Elevation: 247 ft. / 75.3 m (surveyed) Variation: 19E (1985) From city: 2 miles NE of THE DALLES, OR

  19. The Dalles Observations • KDLS 162353Z AUTO 00000KT 6SM BR OVC012 02/M01 A3006 RMK AO2 SLP182 60017 T00171006 10022 • 20006 58028= • KDLS 170039Z AUTO 00000KT 6SM UP BR OVC010 02/M01 A3004 RMK AO2 RAB25E35UPB35 P0000= • KDLS 170053Z AUTO 00000KT 4SM -RA BR OVC010 02/M01 A3003 RMK AO2 RAB25UPB35E43 SLP171 P0000 • T00171006= • KDLS 170153Z AUTO 00000KT 5SM BR OVC010 02/M01 A3000 RMK AO2 RAE0055 SLP161 P0000 T00171006= • KDLS 170253Z AUTO 00000KT 3SM -RA BR OVC010 02/00 A2997 RMK AO2 RAB51 SLP150 P0000 60000 • T00170000 56032= • KDLS 170353Z AUTO 00000KT 4SM BR OVC010 02/M01 A2992 RMK AO2 RAE03 SLP136 P0000 T00171006= • KDLS 170408Z AUTO 00000KT 2 1/2SM BR OVC010 02/00 A2991 RMK AO2= • KDLS 170427Z AUTO 00000KT 5SM BR OVC010 02/00 A2991 RMK AO2= • KDLS 170453Z AUTO 00000KT 5SM -RA BR OVC010 02/00 A2988 RMK AO2 RAB32 SLP122 P0000 • T00170000= • KDLS 170553Z AUTO 00000KT 5SM BR OVC010 02/00 A2984 RMK AO2 RAE0457 SLP107 P0000 60000 • T00170000 10022 20011 58043= • KDLS 170653Z AUTO 00000KT 5SM BR OVC010 02/00 A2979 RMK AO2 RAB11E45UPB29E31 SLP090 P0001 • T00170000= • KDLS 170713Z AUTO VRB03KT 2 1/2SM -RA BR OVC010 02/00 A2975 RMK AO2 RAB0658 PRESFR P0000= • KDLS 170720Z AUTO 00000KT 3SM BR OVC010 01/M01 A2976 RMK AO2 RAB0658E17 P0000= • KDLS 170732Z AUTO 00000KT 2 1/2SM BR OVC010 01/00 A2976 RMK AO2 RAB0658E17 P0000= • KDLS 170737Z AUTO 00000KT 1 3/4SM BR OVC008 01/00 A2975 RMK AO2 RAB0658E17 P0000= • KDLS 170753Z AUTO 00000KT 2SM BR OVC008 01/00 A2976 RMK AO2 RAB0658E17 SLP080 P0000 • T00110000 400221028= • KDLS 170806Z AUTO 00000KT 3SM -RA BR OVC008 02/00 A2975 RMK AO2 RAB0759 P0000= • KDLS 170820Z AUTO 31003KT 1 3/4SM -RA BR OVC008 02/00 A2975 RMK AO2 RAB0759 P0001= • KDLS 170836Z AUTO 00000KT 3SM -RA BR BKN008 OVC050 02/00 A2975 RMK AO2 RAB0759 P0002= • KDLS 170851Z AUTO 00000KT 2 1/2SM RA BR BKN008 OVC050 02/00 A2974 RMK AO2 RAB0759 P0006= • KDLS 170853Z AUTO 00000KT 2 1/2SM -RA BR BKN008 OVC050 02/00 A2975 RMK AO2 RAB0759 SLP077 • P0006 60007 T00170000 55012=

  20. Synoptic Pattern

  21. Surface Analysis

  22. Radar

  23. Verifications

  24. Standings for The Dalles

  25. COMPARE

  26. The Dalles – Lessons Learned • Cold air damming in the Columbia River Gorge is common

  27. Check out: http://weather.gladstonefamily.net/site/CYYN

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