Alert archive / Washington / Winter Storm Warnings in 2015
Winter Storm Warning 13, NWS Seattle, WA
NWS Seattle, WA issued this winter storm warning at Dec 22, 2015, 4:29 AM PST. It took effect at Dec 22, 2015, 4:00 PM PST. It was in force for 38 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 22, 2015, 4:29 AM PST (12:29 UTC)
- In effect from
- Dec 22, 2015, 4:00 PM PST
- Expired
- Dec 24, 2015, 6:00 AM PST
- In force
- 38 hr
- Issued by
- NWS Seattle, WA
The text
As transmitted, in the capitals the NWS used until 2016.
750 WWUS46 KSEW 221229 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 429 AM PST TUE DEC 22 2015 WAZ569-230015- /O.EXP.KSEW.WS.W.0012.000000T0000Z-151222T1200Z/ /O.UPG.KSEW.WS.A.0010.151223T0000Z-151224T1200Z/ /O.NEW.KSEW.WS.W.0013.151223T0200Z-151224T0200Z/ CASCADES OF PIERCE AND LEWIS COUNTIES- 429 AM PST TUE DEC 22 2015 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM PST WEDNESDAY... ...WINTER STORM WARNING HAS EXPIRED... * ACCUMULATIONS...8 TO 14 INCHES TONIGHT AND ANOTHER 8 TO 12 INCHES WEDNESDAY. * SOME AFFECTED LOCATIONS...LONGMIRE AND PARADISE ON MOUNT RAINIER. * TIMING...TONIGHT THROUGH WEDNESDAY. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE THROUGH TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE WINTER WEATHER. IF YOU MUST TRAVEL IN THE WATCH AREA...CARRY AN EXTRA FLASHLIGHT...FOOD...WATER...AND BLANKETS IN CASE OF EMERGENCY. A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WAZ568-230015- /O.EXP.KSEW.WW.Y.0019.000000T0000Z-151222T1200Z/ /O.UPG.KSEW.WS.A.0010.151223T0000Z-151224T1200Z/ /O.NEW.KSEW.WS.W.0013.151223T0200Z-151224T0200Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- 429 AM PST TUE DEC 22 2015 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM PST WEDNESDAY... ...WINTER WEATHER ADVISORY HAS EXPIRED... * ACCUMULATIONS...6 TO 12 INCHES TONIGHT AND ANOTHER 6 TO 12 INCHES ON WEDNESDAY. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS AND STEVENS PASS. * TIMING...TONIGHT AND WEDNESDAY. * MAIN IMPACT...BE PREPARED FOR SNOW COVERED ROADS AND REDUCED VISIBILITIES TONIGHT AND WEDNESDAY. USE CAUTION WHILE DRIVING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE WINTER WEATHER. IF YOU MUST TRAVEL IN THE WATCH AREA...CARRY AN EXTRA FLASHLIGHT...FOOD...WATER...AND BLANKETS IN CASE OF EMERGENCY. A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WAZ513-230015- /O.NEW.KSEW.WW.Y.0020.151223T0200Z-151224T0200Z/ OLYMPICS- 429 AM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM PST WEDNESDAY... * TIMING...TONIGHT AND WEDNESDAY. * ACCUMULATIONS...5 TO 10 INCHES TONIGHT AND 3 TO 6 INCHES ON WEDNESDAY. * SOME AFFECTED LOCATIONS...HURRICANE RIDGE. * MAIN IMPACT...BE PREPARED FOR SNOW COVERED ROADS AND REDUCED VISIBILITIES TONIGHT AND WEDNESDAY. USE CAUTION WHILE DRIVING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ567-230015- /O.NEW.KSEW.WW.Y.0020.151223T0200Z-151224T0200Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 429 AM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM PST WEDNESDAY... * TIMING...TONIGHT AND WEDNESDAY. * ACCUMULATIONS...3 TO 6 INCHES TONIGHT AND ANOTHER 3 TO 6 INCHES ON WEDNESDAY. * SOME AFFECTED LOCATIONS...MOUNT BAKER. * MAIN IMPACT...BE PREPARED FOR SNOW COVERED ROADS AND REDUCED VISIBILITIES TONIGHT AND WEDNESDAY. USE CAUTION WHILE DRIVING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
8 follow-up statements
641 WWUS46 KSEW 222234 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 234 PM PST TUE DEC 22 2015 WAZ568-569-230645- /O.EXT.KSEW.WS.W.0013.151223T0000Z-151224T0200Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 234 PM PST TUE DEC 22 2015 ...WINTER STORM WARNING NOW IN EFFECT FOR THE CENTRAL CASCADES ABOVE 1500 FEET UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...A TOTAL OF 1 TO 2.5 FEET IS LIKELY BY LATE IN THE DAY WEDNESDAY. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * TIMING...SNOW WILL PICK UP THIS EVENING AND INCREASE IN INTENSITY OVERNIGHT. EXPECT LOCALIZED SNOWFALL RATES OF ABOUT ONE INCH PER HOUR AT TIMES OVERNIGHT THROUGH WEDNESDAY. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695-7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ567-230645- /O.EXT.KSEW.WW.Y.0020.151223T0000Z-151224T0200Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 234 PM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT FOR THE NORTH CASCADES ABOVE 1000 FEET UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...4 TO 9 INCHES IS LIKELY BY LATE IN THE DAY WEDNESDAY. * SOME AFFECTED LOCATIONS...MOUNT BAKER. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND REDUCED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ513-230645- /O.EXT.KSEW.WW.Y.0020.151223T0000Z-151224T0200Z/ OLYMPICS- 234 PM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT FOR THE OLYMPICS ABOVE 1500 FEET UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...8 TO 13 INCHES IS LIKELY BY LATE IN THE DAY WEDNESDAY. * SOME AFFECTED LOCATIONS...HURRICANE RIDGE. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WWW.WEATHER.GOV/SEATTLE
906 WWUS46 KSEW 230642 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 1042 PM PST TUE DEC 22 2015 WAZ568-569-231245- /O.CON.KSEW.WS.W.0013.000000T0000Z-151224T0200Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 1042 PM PST TUE DEC 22 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...12 TO 30 INCHES. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ567-231245- /O.CON.KSEW.WW.Y.0020.000000T0000Z-151224T0200Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 1042 PM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...4 TO 9 INCHES. * SOME AFFECTED LOCATIONS...MOUNT BAKER. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND REDUCED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ513-231245- /O.CON.KSEW.WW.Y.0020.000000T0000Z-151224T0200Z/ OLYMPICS- 1042 PM PST TUE DEC 22 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY... * SNOW ACCUMULATION...7 TO 14 INCHES. * SOME AFFECTED LOCATIONS...HURRICANE RIDGE. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
270 WWUS46 KSEW 231154 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 354 AM PST WED DEC 23 2015 WAZ568-569-240015- /O.EXT.KSEW.WS.W.0013.000000T0000Z-151224T0800Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 354 AM PST WED DEC 23 2015 ...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...10 TO 20 INCHES WITH THE HIGHEST ACCUMULATIONS AT PARADISE. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ567-240015- /O.EXT.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 354 AM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...6 TO 12 INCHES. * SOME AFFECTED LOCATIONS...MOUNT BAKER. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND REDUCED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ513-240015- /O.EXT.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ OLYMPICS- 354 AM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...8 TO 14 INCHES. * SOME AFFECTED LOCATIONS...HURRICANE RIDGE. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
094 WWUS46 KSEW 231831 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 1031 AM PST WED DEC 23 2015 WAZ568-569-240245- /O.CON.KSEW.WS.W.0013.000000T0000Z-151224T0800Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 1031 AM PST WED DEC 23 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL CASCADES ABOVE 1500 FEET UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...AN ADDITIONAL 10 TO 20 INCHES OF SNOW IS LIKELY BY LATE TONIGHT...WITH THE HIGHEST AMOUNTS FALLING AT PARADISE. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ567-240245- /O.CON.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 1031 AM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE NORTH CASCADES ABOVE 1000 FEET UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...AN ADDITIONAL 3 TO 7 INCHES IS LIKELY BY LATE TONIGHT. * SOME AFFECTED LOCATIONS...MOUNT BAKER. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND REDUCED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WAZ513-240245- /O.CON.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ OLYMPICS- 1031 AM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR THE OLYMPICS ABOVE 1500 FEET UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...AN ADDITIONAL 5 TO 8 INCHES OF SNOW IS LIKELY BY LATE TONIGHT. * SOME AFFECTED LOCATIONS...HURRICANE RIDGE. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WWW.WEATHER.GOV/SEATTLE
810 WWUS46 KSEW 232228 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 228 PM PST WED DEC 23 2015 WAZ513-567-232330- /O.CAN.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ OLYMPICS-CASCADES OF WHATCOM AND SKAGIT COUNTIES- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IS CANCELLED FOR THE NORTH CASCADES AND OLYMPICS... ADDITIONAL SNOWFALL AMOUNTS WILL BE BELOW ADVISORY CRITERION. $$ WAZ568-569-240630- /O.CON.KSEW.WS.W.0013.000000T0000Z-151224T0800Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 228 PM PST WED DEC 23 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL CASCADES UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...AN ADDITIONAL 4 TO 8 INCHES IS LIKELY BY MIDNIGHT PST TONIGHT...WITH THE HIGHEST AMOUNTS FALLING AT PARADISE. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ555-240630- /O.NEW.KSEW.WW.Y.0021.151224T0000Z-151224T1800Z/ EAST PUGET SOUND LOWLANDS- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IN EFFECT FOR THE EAST PUGET SOUND LOWLANDS UNTIL 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 AM PST THURSDAY. * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY BY MIDMORNING THURSDAY. * SOME AFFECTED LOCATIONS...GOLD BAR...NORTH BEND...ISSAQUAH...AND EATONVILLE. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WAZ506-240630- /O.NEW.KSEW.WW.Y.0021.151224T0200Z-151224T1400Z/ WESTERN SKAGIT COUNTY- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IN EFFECT FOR THE WESTERN SKAGIT COUNTY LOWLANDS NEAREST TO THE CASCADES FROM 6 PM THIS EVENING TO 6 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM PST THURSDAY. * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY TONIGHT. * SOME AFFECTED LOCATIONS...MAINLY SOUTH AND EAST OF MOUNT VERNON. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WWW.WEATHER.GOV/SEATTLE
585 WWUS46 KSEW 232228 CCA WSWSEW URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE SEATTLE WA 228 PM PST WED DEC 23 2015 WAZ513-567-232330- /O.CAN.KSEW.WW.Y.0020.000000T0000Z-151224T0800Z/ OLYMPICS-CASCADES OF WHATCOM AND SKAGIT COUNTIES- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IS CANCELLED FOR THE NORTH CASCADES AND OLYMPICS... ADDITIONAL SNOWFALL AMOUNTS WILL BE BELOW ADVISORY CRITERION. $$ WAZ568-569-240630- /O.CON.KSEW.WS.W.0013.000000T0000Z-151224T0800Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 228 PM PST WED DEC 23 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FOR THE CENTRAL CASCADES UNTIL MIDNIGHT PST TONIGHT... * SNOW ACCUMULATION...AN ADDITIONAL 4 TO 8 INCHES IS LIKELY BY MIDNIGHT PST TONIGHT...WITH THE HIGHEST AMOUNTS FALLING AT PARADISE. * SOME AFFECTED LOCATIONS...SNOQUALMIE PASS...AND LONGMIRE AND PARADISE ON MOUNT RAINIER. * MAIN IMPACT...SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL HAZARDOUS OR IMPOSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ555-240630- /O.COR.KSEW.WW.Y.0021.151224T0000Z-151224T1800Z/ EAST PUGET SOUND LOWLANDS- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IN EFFECT FOR THE EAST PUGET SOUND LOWLANDS UNTIL 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 AM PST THURSDAY. * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY BY MIDMORNING THURSDAY. * SOME AFFECTED LOCATIONS...GOLD BAR...NORTH BEND...ENUMCLAW...AND EATONVILLE. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WAZ506-240630- /O.NEW.KSEW.WW.Y.0021.151224T0200Z-151224T1400Z/ WESTERN SKAGIT COUNTY- 228 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IN EFFECT FOR THE WESTERN SKAGIT COUNTY LOWLANDS NEAREST TO THE CASCADES FROM 6 PM THIS EVENING TO 6 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM PST THURSDAY. * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY TONIGHT. * SOME AFFECTED LOCATIONS...MAINLY SOUTH AND EAST OF MOUNT VERNON. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WWW.WEATHER.GOV/SEATTLE
208 WWUS46 KSEW 240528 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 928 PM PST WED DEC 23 2015 WAZ568-569-241400- /O.EXT.KSEW.WS.W.0013.000000T0000Z-151224T1400Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 928 PM PST WED DEC 23 2015 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM PST THURSDAY... * SNOW ACCUMULATION...AN ADDITIONAL 4 TO 8 INCHES IS LIKELY BY 6 AM PST THURSDAY. * SOME AFFECTED LOCATIONS...ALL AREAS OF THE CASCADES FROM LEWIS COUNTY NORTHWARD THROUGH SNOHOMISH COUNTY ABOVE 1500 FEET WILL CONTINUE TO RECEIVE SIGNIFICANT SNOWFALL TONIGHT. * MAIN IMPACT...HEAVY SNOW...FALLEN TREES...POWER OUTAGES...AND AVALANCHE DANGER WILL CAUSE HAZARDOUS DRIVING CONDITIONS...LONG DELAYS...AND SOME ROAD CLOSURES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ567-241400- /O.EXA.KSEW.WW.Y.0021.000000T0000Z-151224T1400Z/ CASCADES OF WHATCOM AND SKAGIT COUNTIES- 928 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM PST THURSDAY. * ACCUMULATIONS...2 TO 6 INCHES IS LIKELY TONIGHT. * SOME AFFECTED LOCATIONS...NORTH CASCADES ABOVE 1000 FEET. * TIMING...THROUGH 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND ITS ASSOCIATED HAZARDS WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WAZ555-241400- /O.CON.KSEW.WW.Y.0021.000000T0000Z-151224T1800Z/ EAST PUGET SOUND LOWLANDS- 928 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THURSDAY... * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY BY MIDMORNING THURSDAY. * SOME AFFECTED LOCATIONS...GOLD BAR...NORTH BEND...ENUMCLAW...AND EATONVILLE. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$ WAZ506-241400- /O.CON.KSEW.WW.Y.0021.000000T0000Z-151224T1400Z/ WESTERN SKAGIT COUNTY- 928 PM PST WED DEC 23 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST THURSDAY... * ACCUMULATIONS...1 TO 3 INCHES IS LIKELY TONIGHT. * SOME AFFECTED LOCATIONS...MAINLY SOUTH AND EAST OF MOUNT VERNON. * TIMING...THE PERIOD OF HEAVIEST SNOWFALL IS EXPECTED BETWEEN 9 PM TONIGHT AND 6 AM PST THURSDAY. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$
624 WWUS46 KSEW 241215 WSWSEW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 415 AM PST THU DEC 24 2015 WAZ506-567-241315- /O.CAN.KSEW.WW.Y.0021.000000T0000Z-151224T1400Z/ WESTERN SKAGIT COUNTY-CASCADES OF WHATCOM AND SKAGIT COUNTIES- 415 AM PST THU DEC 24 2015 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ WAZ568-569-250030- /O.EXB.KSEW.WW.Y.0021.151224T1400Z-151225T0200Z/ /O.CON.KSEW.WS.W.0013.000000T0000Z-151224T1400Z/ CASCADES OF SNOHOMISH AND KING COUNTIES- CASCADES OF PIERCE AND LEWIS COUNTIES- 415 AM PST THU DEC 24 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS MORNING... ...WINTER WEATHER ADVISORY IN EFFECT 6 AM TO 6 PM PST THIS EVENING... * SNOW ACCUMULATION...AN ADDITIONAL 4 TO 8 INCHES IS LIKELY BY 6 PM PST TODAY. * SOME AFFECTED LOCATIONS...ALL AREAS OF THE CASCADES FROM LEWIS COUNTY NORTHWARD THROUGH SNOHOMISH COUNTY ABOVE 1500 FEET WILL CONTINUE TO RECEIVE SIGNIFICANT SNOWFALL TONIGHT. * MAIN IMPACT...HEAVY SNOW...FALLEN TREES...POWER OUTAGES...AND AVALANCHE DANGER WILL CAUSE HAZARDOUS DRIVING CONDITIONS...LONG DELAYS...AND SOME ROAD CLOSURES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONDITIONS CAN DETERIORATE RAPIDLY DURING WINTER WEATHER EVENTS. SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. PRACTICE YOUR WINTER SAFETY RULES. KEEP AN EXTRA FLASHLIGHT...FOOD...WATER... AND BLANKETS IN YOUR VEHICLE IN CASE OF EMERGENCY. FOR ROAD CONDITIONS OR TRAVEL ALERTS...CALL 5-1-1 OR 1-800-695- 7623...OR VISIT WWW.WSDOT.WA.GOV. && $$ WAZ555-241800- /O.CON.KSEW.WW.Y.0021.000000T0000Z-151224T1800Z/ EAST PUGET SOUND LOWLANDS- 415 AM PST THU DEC 24 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * ACCUMULATIONS...UP TO AN INCH IS POSSIBLE UNTIL 10 AM. * SOME AFFECTED LOCATIONS...GOLD BAR...NORTH BEND...ENUMCLAW...AND EATONVILLE. * MAIN IMPACT...SNOW COVERED ROADS AND REDUCED VISIBILITIES AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY IS ISSUED WHEN 1 TO 3 INCHES OF SNOW IS LIKELY IN 12 HOURS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. USE CAUTION WHILE DRIVING. && $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Seattle, WA wrote its last area forecast discussion before this winter storm warning went out at Dec 22, 4:15 AM PST, 14 minutes earlier.
Area forecast discussion, Dec 22, 4:15 AM PST, 14 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
415 AM PST TUE DEC 22 2015
.SYNOPSIS...ANOTHER FRONT WILL BRING RAIN AND MOUNTAIN SNOW LATER
TODAY LATER TODAY AND TONIGHT. ANOTHER SYSTEM WILL MOVE THROUGH ON
WEDNESDAY. SHOWERS WILL DECREASE WEDNESDAY NIGHT INTO THURSDAY.
AN UPPER RIDGE WILL BRING DRY WEATHER LATE IN THE WEEK.
&&
.SHORT TERM...ITS RAINED 19 OUT OF THE FIRST 21 DAYS IN DECEMBER IN SEATTLE.
MAKE IT 20 OUT OF 22 AFTER TODAY. SATELLITE IMAGERY AND DOPPLER RADAR SHOW
A LITTLE LULL IN THE ACTION EARLY THIS MORNING WITH JUST SOME WIDELY
SCATTERED SHOWERS OVER THE AREA WITH MOST OF THE ACTIVITY IN A CONVERGENCE ZONE
OVER SNOHOMISH COUNTY. TEMPERATURES AT 3 AM WERE IN THE MID 30S TO LOWER 40S.
SHOWER ACTIVITY WILL DRY UP LATER THIS MORNING AS THE NEXT FRONT TO REACH
THE AREA APPROACHES THE COAST. RAIN OUT AHEAD OF THE SYSTEM WILL BEGIN ON THE
COAST AROUND MIDDAY AND SPREAD INLAND DURING THE AFTERNOON. HIGHS WILL BE MOSTLY
IN THE LOWER TO MID 40S.
NEGATIVELY TILTED FRONT MOVING THROUGH WESTERN WASHINGTON TONIGHT WITH THE
STEADY PRECIPITATION CHANGING TO SHOWERS. GOOD...BUT NOT GREAT OROGRAPHICS
IN THE MOUNTAINS. WITH THE FRONT BEING NEGATIVELY TILTED AND THE JET
MOVING INTO SOUTHERN WASHINGTON/NORTHERN OREGON EXPECT THE SNOW AMOUNTS TO BE
HIGHER FOR THE CENTRAL AND SOUTHERN CASCADES VERSUS THE NORTHERN CASCADES AND
OLYMPICS. A WINTER STORM WARNING HAS BEEN ISSUED FOR THE CENTRAL AND SOUTHERN
WASHINGTON CASCADES BEGINNING TONIGHT WITH A WINTER WEATHER ADVISORY FOR THE
NORTH CASCADES AND OLYMPICS. LOWS WILL BE IN THE 30S. THERE IS A CHANCE
THAT SOME COOL AIR COULD GET DRAWN DOWN AS FAR AS THE CANADIAN BORDER TONIGHT
MAKING THE PRECIPITATION TYPE RAIN AND SNOW MIXED NEAR THE CANADIAN BORDER.
UPPER LEVEL TROUGH DIGGING SLIGHTLY OFFSHORE ON WEDNESDAY WITH ANOTHER IMPULSE
MOVING INTO THE AREA IN THE AFTERNOON ENHANCING THE PRECIPITATION ONCE AGAIN.
SNOW LEVELS WILL REMAIN LOW...NEAR 1000 FEET IN THE NORTH AND 2000 FEET IN THE
SOUTH. SNOW RATES WILL LET UP A LITTLE IN THE MOUNTAINS IN THE MORNING AND PICK
UP AGAIN IN THE AFTERNOON. WILL EXTENDED THE ADVISORIES AND WARNING THROUGH
WEDNESDAY AFTERNOON. TOTAL NEW SNOW ACCUMULATIONS BY LATE WEDNESDAY AFTERNOON
IN THE ONE TO TWO FOOT RANGE WITH HIGHER AMOUNTS POSSIBLE ON MOUNT RAINIER.
SHOWER ACTIVITY WILL BE ON THE DECREASE WEDNESDAY NIGHT INTO THURSDAY AS THE
UPPER LEVEL TROUGH OFFSHORE CONTINUES TO DIG SOUTH. LOWS WILL BE IN THE
30S AND LOWER 40S WITH HIGHS IN THE UPPER 30S TO MID 40S.
COOLER AIR FILTER DOWN OVER WESTERN WASHINGTON THURSDAY NIGHT. WHILE THIS IS
GOING ON SHOWER ACTIVITY WILL BE DISSIPATING. THE AIR MASS WILL BE COLD ENOUGH
...1000-850 MB THICKNESS VALUES 1288-1296 METERS...FOR THE SHOWERS TO BE IN THE
FORM OF SNOW...ESPECIALLY AWAY FROM THE WATER. AT THIS POINT WHAT LITTLE
SHOWER ACTIVITY WILL BE LEFT WILL NOT BE ENOUGH TO RESULT IN ANY
ACCUMULATIONS.
.LONG TERM...MODELS CONTINUING WITH THE IDEA OF THE DRIER NORTHERLY FLOW ALOFT ON
CHRISTMAS DAY AS A STRONG UPPER RIDGE BUILDS OFFSHORE. WHILE THE TEMPERATURES
WILL BE COLD ENOUGH FOR SNOW IN THE EARLY MORNING HOURS ON CHRISTMAS OUTSIDE OF
A HINT OF SOME CONVERGENCE OVER SNOHOMISH COUNTY THE MODELS ARE DRY. RIDGE REMAINING
IN PLACE ON SATURDAY FOR A DRY DAY BEFORE THE NEXT SYSTEM ARRIVES ON LATER SUNDAY.
POST FRONTAL SHOWERS OVER THE AREA ON MONDAY. FELTON
&&
.CLIMATE...WITH THE 1.08 INCHES OF RAIN AT SEA-TAC YESTERDAY THE MONTHLY RAINFALL
TOTAL SURPASSED 10 INCHES. THIS MONTH IS CURRENTLY THE THIRD WETTEST DECEMBER
ON RECORD AT SEA-TAC SURPASSED ONLY BY THE RECORD 11.85 INCHES IN 1979 AND 10.18
INCHES IN 1996. IT IS ALSO THE NINTH WETTEST MONTH EVER AT SEA-TAC. INCLUDING
THE FEDERAL BUILDING RECORDS THIS MONTH CURRENTLY IS THE SIXTH WETTEST DECEMBER ON
RECORD AND THE 12TH WETTEST MONTH ON RECORD. RECORDS AT THE FEDERAL BUILDING GO BACK
TO 1891.
&&
.AVIATION...MODERATE NW FLOW ALOFT WILL CONTINUE OVER W WA
THOUGH TONIGHT. AN UPPER LEVEL TROUGH EMBEDDED IN THE NW FLOW WILL
FOLLOW A COLD FRONT AS IT REACHES THE COAST THIS AFTERNOON. THE AIR
MASS REMAINS FAIRLY MOIST AT LOW LEVELS...WITH AREAS OF MVFR CIGS
AROUND CENTRAL PUGET SOUND AND OVER THE N INTERIOR. THE AIR MASS
REMAINS WEAKLY UNSTABLE BUT SHOWER ACTIVITY HAS BEEN DIMINISHING.
THE APPROACHING FRONT WILL BRING RAIN TO THE COAST AFTER
21Z...SPREADING INLAND AFTER 00Z.
THE MVFR CONDITIONS OVER THE INTERIOR WILL GRADUALLY LIFT TO LOW END
VFR...WHILE VFR CONDITIONS WILL MOSTLY CONTINUE OVER THE SW INTERIOR
AND THROUGH THE STRAIT. SOME SPOTTY MVFR CIGS COULD STILL DEVELOP
OVER THE SW INTERIOR THIS MORNING.
KSEA...MVFR CIGS CONTINUE ALTHOUGH WITH CLEARING OVER TACOMA THE
CIGS COULD IMPROVE MORE QUICKLY THAN EXPECTED LATER THIS MORNING.
RAIN FROM THE APPROACHING FRONT WILL EVENTUALLY LOWER CIGS BACK DOWN
TO MVFR AFTER 04Z TONIGHT. SURFACE WINDS WILL REMAIN SOUTHERLY 5-15
KT. KAM
&&
.MARINE...AN APPROACHING COLD FRONT NEAR 135W AT 10Z/2 AM WILL REACH
THE COASTAL WATERS THIS AFTERNOON THEN MOVE INLAND THIS EVENING.
STRONG NW FLOW WILL DEVELOP IMMEDIATELY BEHIND THE COLD FRONT WITH
HIGH END GALES EXPECTED OVER THE COASTAL WATERS TONIGHT AND
WEDNESDAY. A SURGE OF WESTERLIES THROUGH THE STRAIT WILL RAISE GALES
THERE TONIGHT. THERE WILL BE SOME AREAS OF SCA WINDS OVER THE
INTERIOR TODAY AHEAD OF THE COLD FRONT.
ANOTHER LOW WILL MOVE OVER THE AREA ON WEDNESDAY THEN GRADUALLY
WEAKEN THROUGH FRIDAY.
THE STRONG NW FLOW ON TODAY IS EXPECTED TO GENERATE A LARGE WESTERLY
SWELL 20-26 FT THAT WILL REACH THE COAST THIS EVENING...PEAK
WEDNESDAY OR WEDNESDAY EVENING...THEN SLOWLY SUBSIDE THROUGH
WEDNESDAY NIGHT. THE WAVE WATCH MODEL HAS BEEN REASONABLY CONSISTENT
LATELY ON SWELL HEIGHTS...BUT HAS SHIFTED THE PEAK AROUND A BIT.
CONFIDENCE IS HIGH THAT THE SWELL WILL REACH 20-25 FEET BUT IT COULD
PEAK A LITTLE HIGHER. A HIGH SURF ADVISORY HAS BEEN ISSUED FOR THIS.
TIDES ARE STILL RUNNING ON THE HIGH SIDE AND THE MIDDAY HIGH TIDE
COULD GENERATE SOME MINOR TIDAL OVERFLOW TODAY ON THE CENTRAL
COAST...IN THE STRAIT OF JUAN DE FUCA FROM PORT ANGELES EXTENDING
EASTWARD TO PORT TOWNSEND AND N HOOD CANAL. ANOTHER HIGH TIDE ON THE
COAST ON WEDNESDAY WILL COINCIDE WITH THE LARGE W SWELL REACHING THE
COAST. THIS COULD PRODUCE ANOTHER ROUND OF MINOR TIDAL OVERFLOW. A
COASTAL FLOOD WATCH REMAINS IN EFFECT FOR THE MIDDAY WEDNESDAY
COASTAL TIDE. KAM
&&
SEW WATCHES/WARNINGS/ADVISORIES...
WA...COASTAL FLOOD ADVISORY FOR PARTS OF THE COAST AND INLAND
WATERS TODAY.
HIGH SURF ADVISORY COAST.
COASTAL FLOOD WATCH CENTRAL COAST WEDNESDAY.
WINTER STORM WARNING CENTRAL AND SOUTHERN CASCADES TONIGHT AND
WEDNESDAY.
WINTER WEATHER ADVISORY NORTH CASCADES AND OLYMPICS TONIGHT AND WEDNESDAY.
PZ...GALE WARNING COAST AND STRAIT OF JUAN DE FUCA.
SMALL CRAFT ADVISORY REMAINING WATERS EXCEPT PUGET SOUND.
SMALL CRAFT ADVISORY FOR ROUGH GRAYS HARBOR BAR.
&&
WWW.WEATHER.GOV/SEATTLE/
YOU CAN SEE AN ILLUSTRATED VERSION OF THIS DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTMLThe office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 10:51 PM PST | Coastal Flood Advisory | SEW | 16 hr | |
| Dec 21, 10:51 PM PST | High Surf Advisory | SEW | 55 hr | |
| Dec 22, 3:06 AM PST | Gale Warning | SEW | 45 hr | |
| Dec 22, 3:06 AM PST | Small Craft Advisory | SEW | 12 hr | |
| Dec 22, 3:06 AM PST | Small Craft Advisory for Hazardous Seas | SEW | 12 hr | |
| Dec 22, 4:03 AM PST | Wind Advisory | SEW | 36 hr | |
| Dec 22, 4:29 AM PST | Winter Weather Advisory | SEW | 34 hr | |
| Dec 22, 3:35 PM PST | Coastal Flood Warning | SEW | 22 hr |
Nearby
Winter Storm Warnings in Washington, 2015Every winter storm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.