| Official Advisory/Bulletin: |
| SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PORTLAND OR 435 PM PDT SUN AUG 17 2008 THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN CLACKAMAS COUNTY IN NORTHWEST OREGON... * UNTIL 515 PM PDT. * AT 427 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES SOUTHWEST OF TIMOTHY LAKE...OR 20 MILES SOUTH OF GOVERNMENT CAMP... AND MOVING NORTH AT 36 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... THREE LYNX AROUND 440 PM PDT... RHODODENDRON AROUND 500 PM PDT... WELCHES AND ZIGZAG AROUND 505 PM PDT... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 4534 12219 4537 12178 4501 12179 4497 12205 TIME...MOT...LOC 2335Z 170DEG 31KT 4509 12194 |
| Alert, Advisory, Warning, etc from a government agency. |
| Official Advisory/Bulletin: |
| NORTH OREGON COAST-CENTRAL OREGON COAST- COAST RANGE OF NORTHWEST OREGON- CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA- GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY- SOUTH WILLAMETTE VALLEY-WESTERN COLUMBIA RIVER GORGE- NORTHERN OREGON CASCADE FOOTHILLS-NORTHERN OREGON CASCADES- CASCADE FOOTHILLS IN LANE COUNTY-CASCADES IN LANE COUNTY- UPPER HOOD RIVER VALLEY-SOUTH WASHINGTON CASCADES-WILLAPA HILLS- SOUTH WASHINGTON COAST-I-5 CORRIDOR IN COWLITZ COUNTY- GREATER VANCOUVER AREA-SOUTH WASHINGTON CASCADE FOOTHILLS- INCLUDING THE CITIES OF...ASTORIA...CANNON BEACH...TILLAMOOK... LINCOLN CITY...NEWPORT...FLORENCE...VERNONIA...JEWELL...TRASK... GRANDE RONDE...TIDEWATER...SWISSHOME...ST. HELENS...CLATSKANIE... HILLSBORO...PORTLAND...OREGON CITY...GRESHAM...SALEM... MCMINNVILLE...DALLAS...EUGENE...CORVALLIS...ALBANY...HOOD RIVER... CASCADE LOCKS...MULTNOMAH FALLS...SANDY... SILVER FALLS STATE PARK...SWEET HOME...GOVERNMENT CAMP... DETROIT...SANTIAM PASS...VIDA...LOWELL...COTTAGE GROVE... MCKENZIE BRIDGE...OAKRIDGE...WILLAMETTE PASS...PARKDALE...ODELL... COLDWATER RIDGE VISITORS CENTER...MOUNT ST. HELENS...FRANCES... RYDERWOOD...RAYMOND...LONG BEACH...CATHLAMET...LONGVIEW...KELSO... CASTLE ROCK...STEVENSON...SKAMANIA...VANCOUVER...BATTLE GROUND... WASHOUGAL...TOUTLE...ARIEL...COUGAR 140 PM PDT SUN AUG 17 2008 ...AN UNSEASONABLY STRONG STORM EXPECTED TO IMPACT SOUTHWEST WASHINGTON AND NORTHWEST OREGON MID WEEK... COMPUTER MODELS AGREE ON BRINGING AN UNSEASONABLY STRONG STORM INTO SOUTHWEST WASHINGTON AND NORTHWEST OREGON BY THE MIDDLE OF THIS WEEK. THIS STORM IS ACTUALLY MODERATELY STRONG EVEN FOR WINTER TIME...AND WILL LIKELY PRODUCE UNUSUALLY STRONG WINDS FOR SUMMER ALONG THE COAST AND AN UNSEASONABLY HIGH AMOUNT OF RAINFALL. THIS SYSTEM WILL LIKELY PRODUCE GALE FORCE WINDS OVER THE COASTAL WATERS BEGINNING LATE TUESDAY AND CONTINUING TUESDAY NIGHT. WIND GUSTS ALONG THE IMMEDIATE COAST COULD REACH 50 MPH OR MORE. THIS STORM ALSO IS FORECAST TO HAVE A VERY HIGH MOISTURE CONTENT...AND WILL LIKELY PRODUCE A SIGNIFICANT AMOUNT OF RAINFALL THROUGHOUT MUCH OF SOUTHWEST WASHINGTON AND NORTHWEST OREGON TUESDAY NIGHT AND WEDNESDAY MORNING...AND WILL LIKELY MAKE A VERY LARGE DENT IN THE FIRE SEASON IN THIS AREA. |
| Alert, Advisory, Warning, etc from a government agency. |
disregard the severe thunderstorm warning. It was canceled.
| Official Advisory/Bulletin: |
| NORTH OREGON COAST-CENTRAL OREGON COAST- COAST RANGE OF NORTHWEST OREGON- CENTRAL COAST RANGE OF WESTERN OREGON-LOWER COLUMBIA- GREATER PORTLAND METRO AREA-CENTRAL WILLAMETTE VALLEY- SOUTH WILLAMETTE VALLEY-WESTERN COLUMBIA RIVER GORGE- NORTHERN OREGON CASCADE FOOTHILLS-NORTHERN OREGON CASCADES- CASCADE FOOTHILLS IN LANE COUNTY-CASCADES IN LANE COUNTY- UPPER HOOD RIVER VALLEY-SOUTH WASHINGTON CASCADES-WILLAPA HILLS- SOUTH WASHINGTON COAST-I-5 CORRIDOR IN COWLITZ COUNTY- GREATER VANCOUVER AREA-SOUTH WASHINGTON CASCADE FOOTHILLS- INCLUDING THE CITIES OF...ASTORIA...CANNON BEACH...TILLAMOOK... LINCOLN CITY...NEWPORT...FLORENCE...VERNONIA...JEWELL...TRASK... GRANDE RONDE...TIDEWATER...SWISSHOME...ST. HELENS...CLATSKANIE... HILLSBORO...PORTLAND...OREGON CITY...GRESHAM...SALEM... MCMINNVILLE...DALLAS...EUGENE...CORVALLIS...ALBANY...HOOD RIVER... CASCADE LOCKS...MULTNOMAH FALLS...SANDY... SILVER FALLS STATE PARK...SWEET HOME...GOVERNMENT CAMP... DETROIT...SANTIAM PASS...VIDA...LOWELL...COTTAGE GROVE... MCKENZIE BRIDGE...OAKRIDGE...WILLAMETTE PASS...PARKDALE...ODELL... COLDWATER RIDGE VISITORS CENTER...MOUNT ST. HELENS...FRANCES... RYDERWOOD...RAYMOND...LONG BEACH...CATHLAMET...LONGVIEW...KELSO... CASTLE ROCK...STEVENSON...SKAMANIA...VANCOUVER...BATTLE GROUND... WASHOUGAL...TOUTLE...ARIEL...COUGAR 136 PM PDT MON AUG 18 2008 ...AN UNSEASONABLY STRONG WEATHER SYSTEM WILL MOVE OVER SOUTHWEST WASHINGTON AND NORTHWEST OREGON LATE TUE THROUGH WED... AN UNSEASONABLY STRONG WEATHER SYSTEM WILL MOVE OVER SOUTHWEST WASHINGTON AND NORTHWEST OREGON BEGINNING TUE AFTERNOON. THE SYSTEM WILL STILL BE AFFECTING THE AREA WED EVENING. THIS STORM IS REMARKABLY SIMILAR TO WINTER TYPE SYSTEMS AND WILL PRODUCE STRONG WINDS ALONG THE COAST. WIND GUSTS WILL BE STRONGEST TUESDAY NIGHT. THEY WILL PROBABLY PEAK AROUND 50 MPH NEAR COASTAL HEADLANDS...BUT COASTAL CITIES WILL SEE LESS STRONG WINDS PEAKING AROUND 30 MPH. INLAND CONDITIONS WILL BE QUITE A BIT LESS BREEZY...EXCEPT FOR HIGHEST ELEVATIONS OF THE CASCADES. THE SYSTEM WILL ALSO PRODUCE RELATIVELY HEAVY PRECIPITATION ESPECIALLY IN THE COAST RANGE...FOOTHILLS AND CASCADES. RAINFALL TOTALS FOR THE STORM WILL RANGE FROM 1 TO 2 INCHES IN THE COASTAL MOUNTAINS AND CASCADES...WITH LESSER AMOUNTS IN THE VALLEYS. FREEZING LEVELS WILL REMAIN HIGH ENOUGH TO RULE OUT MOUNTAIN SNOW...EXCEPT AT THE VERY HIGHEST PEAKS. THIS STORM WILL HAVE A FAIRLY RAPID ONSET AND PRODUCE BACK COUNTRY CONDITIONS THAT WILL BE CHALLENGING AT BEST...WITH COOL TEMPERATURES...WINDY CONDITIONS...COPIOUS RAIN AND EVEN HEAVY SNOW AT THE VERY HIGHEST ELEVATIONS. |
| Alert, Advisory, Warning, etc from a government agency. |