| UPPER AIR PATTERN AT APPROXIMATELY FL180 |
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SYNOPSIS...A VIGOROUS TROUGH OF LOW PRESSURE OVER WESTERN WASHINGTON WILL SHIFT INTO BRITISH COLUMBIA TONIGHT. PRESSURE GRADIENTS WILL PEAK THEN DECREASE OVERNIGHT. WEAK HIGH PRESSURE WILL BUILD OVER THE REGION SUNDAY THROUGH THE DAYTIME MONDAY. A VIGOROUS FRONTAL SYSTEM WILL MOVE THROUGH THE AREA MONDAY NIGHT. THE WEATHER PATTERN WILL REMAIN UNSETTLED THROUGH MOST OF NEXT WEEK. |
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SEA TRACON WEATHER IMPACTS ISSUED: 10/4/2008 2:07:42 PM |
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| PSCZ | CONF | TIME | WIND SHIFT INFO |
| BFI | |||
| SEA | |||
| WIND (>40KT AOB 050) | DIR/SPD/LEVEL | ||
| SEA | Med | thru 23z | 220/40-45 kts/030-050 |
| TS (WITHIN 10 MILES) | |||
| BFI | |||
| SEA | |||
| FOG (VIS < 1 MILE) | |||
| BFI | |||
| SEA | |||
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ZSE ARTCC WEATHER HAZARDS |
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| Issued: 10/4/2008 3:11:36 PM | ||||
| AREAS | ||||
| HAZARDS | A | B | C | D |
| ICING | X | X | X | X |
| LO-TURB | X | X | X | X |
| LLWS | ||||
| HI-TURB | X | X | X | X |
| TSTM | X | |||
| CIG <050 | X | X | X | X |
| IFR | ||||
| Click here for ZSE Area Map | ||||
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| CURRENT RADAR/SATELLITE IMAGES |
 Radar | VIS | IR | WV |
| ZSE CWSU SEATTLE TRACON TACTICIAL DECISION AIDS | |||||
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| COMPRESSION | CONVECTIVE | TERMINAL | FLIGHT CATEGORIES | FREEZING LEVELS | CONVERGENCE ZONE |
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