| CURRENT CONVECTIVE SIGMETS |
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SYNOPSIS...AN UPPER RIDGE OVER THE EASTERN PACIFIC WILL BE THE PERSISTENT LARGE SCALE FEATURE THROUGH MUCH OF THE COMING WEEK. THERE WILL BE SOME WEAK UPPER LEVEL DISTURBANCES RIDING OVER THE RIDGE AND DOWN INTO THE ROCKY MOUNTAIN REGION THAT WILL AFFECT THE ONSHORE FLOW AND MARINE LAYER AT TIMES. ONE DISTURBANCE TO OUR NORTH WILL TURN THE FLOW ONSHORE MONDAY NIGHT AND TUESDAY AS AN UPPER TROUGH CARVES OUT OVER THE ROCKY MOUNTAIN REGION AGAIN. THE UPPER RIDGE WILL THEN REBUILD WEDNESDAY AND THURSDAY FOR ANOTHER WARMING PERIOD BEFORE THE NEXT DISTURBANCE RETURNS ONSHORE FLOW TO THE AREA AT THE END OF THE WEEK. |
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PDX TRACON WEATHER IMPACTS ISSUED: 9/7/2008 4:38:49 PM |
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| SFC WIND DIR 180-210° AND SPD >20 KT | |||
| (Y/N) | (CONF) | (TIME) | (INFO/DETAILS) |
| N | |||
| LOW LEVEL WINDS >40KT AOB FL050 | |||
| (Y/N) | (CONF) | (TIME) | (INFO/DETAILS) |
| N | |||
| THUNDERSTORMS WITHIN 10 NM OF PDX | |||
| (Y/N) | (CONF) | (TIME) | (INFO/DETAILS) |
| N | |||
| DENSE FOG WITH VIS < 1 SM | |||
| (Y/N) | (CONF) | (TIME) | (INFO/DETAILS) |
| N | |||
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ZSE ARTCC WEATHER HAZARDS |
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| Issued: 9/7/2008 4:38:33 PM | ||||
| AREAS | ||||
| HAZARDS | A | B | C | D |
| ICING | ||||
| LO-TURB | ||||
| LLWS | ||||
| HI-TURB | ||||
| TSTM | ||||
| CIG <050 | X | |||
| IFR | X | |||
| Click here for ZSE Area Map | ||||
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| CURRENT RADAR/SATELLITE IMAGES |
 Radar | VIS | IR | WV |
| PORTLAND TRACON TACTICIAL DECISION AIDS |
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| COMPRESSION | CONVECTIVE | TERMINAL | FLIGHT CATEGORIES | FREEZING LEVELS | |
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