000 WWUS86 KPQR 141909 SPSPQR SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PORTLAND OR 1114 AM PDT THU OCT 14 2004 ORZ001>013-WAZ019>023-039-040-151700- CASCADE FOOTHILLS IN LANE COUNTY-CASCADES IN LANE COUNTY- CENTRAL COAST RANGE OF WESTERN OREGON-CENTRAL OREGON COAST- CENTRAL WILLAMETTE VALLEY-COAST RANGE OF NORTHWEST OREGON- GREATER PORTLAND METRO AREA-GREATER VANCOUVER AREA-LOWER COLUMBIA- LOWER COLUMBIA AND I - 5 CORRIDOR IN COWLITZ COUNTY- NORTH OREGON COAST-NORTHERN OREGON CASCADE FOOTHILLS- NORTHERN OREGON CASCADES-SOUTH WILLAMETTE VALLEY- SOUTH WASHINGTON CASCADE FOOTHILLS-SOUTH WASHINGTON CASCADES- SOUTH WASHINGTON COAST-WESTERN COLUMBIA RIVER GORGE-WILLAPA HILLS- INCLUDING THE CITIES OF...ALBANY...ASTORIA...BATTLE GROUND... CASCADE LOCKS...CASTLE ROCK...CATHLAMET... COLDWATER RIDGE VISITORS CENTER...CORVALLIS...COUGAR...DALLAS... DETROIT...DOWNTOWN PORTLAND...DOWNTOWN VANCOUVER...EUGENE... FLORENCE...FRANCES...GOVERNMENT CAMP...GRANDE RONDE...HILLSBORO... HOOD RIVER...JEWELL...LONGVIEW...LOWELL...MANZANITA...MAPLETON... MCKENZIE BRIDGE...MCMINNVILLE...MILL CITY...MOUNT ST. HELENS... NEWPORT...OAKRIDGE...OREGON CITY...RAYMOND...SALEM...SANDY... ST. HELENS...STEVENSON...SWEET HOME...TILLAMOOK...TOUTLE... VERNONIA AND VIDA 1114 AM PDT THU OCT 14 2004 ...FORECAST FOR MOUNT ST. HELENS FOR PLANNING PURPOSES... SYNOPSIS...THE STRONG UPPER RIDGE OVER THE PACIFIC NW TODAY WILL SHIFT WESTWARD TONIGHT AND BE FAR OFF SHORE THIS WEEKEND. WINDS ALOFT TODAY WILL BE FROM THE NORTH TO NORTHEAST AT THE LOWER LEVELS...AND NORTH TO NORTHWEST AT THE UPPER LEVELS. WINDS WILL BECOME NORTHWESTERLY AT ALL LEVELS BEGINNING FRIDAY...AND STRENGTHYEN CONSIDERABLY SATURDAY. ELEVATIONS BELOW ARE HEIGHTS ABOVE MEAN SEA LEVEL. MT. ST. HELENS CRATER FLOOR IS AT 6279 FT. WIND FORECASTS BELOW 6279 FT APPLY TO NEARBY LOWER ELEVATIONS. WIND DIRECTIONS ARE BASED ON TRUE NORTH AND ARE THE DIRECTION THE WIND IS BLOWING FROM. WIND SPEEDS ARE IN MILES PER HOUR. EXAMPLE...360005...REPRESENTS A WIND FROM 360 DEGREES AT 005 MPH. MORNING SALEM BALLOON SOUNDING ELEV 10/13 0500PDT 3000 350023 6000 050019 9000 050015 15000 340006 18000 300006 21000 290008 24000 290007 27000 280007 30000 255007 33000 200003 36000 200003 39000 285004 42000 282010 45000 275012 48000 300020 51000 310020 FORECAST WINDS ALOFT FOR MT. ST. HELENS AND VICINITY ELEV. 10/14 0500PDT 10/14 1700PDT 10/15 0500PDT 10/15 1700PDT 3000 024019 200014 345012 292018 6000 003018 347022 330021 305033 9000 350014 334026 322024 304045 12000 339010 329028 314028 297051 15000 159009 323031 309033 296058 18000 034011 316029 313040 295066 21000 038010 311029 316047 294072 24000 010005 318029 316052 291074 27000 232005 328031 313059 290074 30000 273007 339033 313064 292074 33000 276008 345034 315068 294076 36000 288008 342032 317070 295079 39000 303009 331027 319072 294082 42000 304014 321027 315068 299083 45000 301019 311027 310063 304082 48000 306021 311028 309056 304072 51000 312024 311028 308049 305061 FOR HYPOTHETICAL ASH CLOUD TRAJECTORY FORECASTS REFER TO THE NOAA AIR RESOURCES LAB WEB SITE AT HTTP://WWW.ARL.NOAA.GOV/READY/VAFTADMENU.HTML. USE LOWER CASE. IN THE EVENT OF AN ERUPTION THE NATIONAL WEATHER SERVICE WILL ISSUE A VOLCANIC ASH ADVISORY WITH UP TO DATE TRAJECTORY AND WIND INFORMATION. $$