Alert archive / California / Winter Storm Warnings in 2009
Winter Storm Warning 7, NWS Medford, OR
NWS Medford, OR issued this winter storm warning at Nov 19, 2009, 2:21 PM PST for Siskiyou County, California. It took effect at Nov 20, 2009, 7:00 AM PST. It was in force for 18 hr. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 19, 2009, 2:21 PM PST (22:21 UTC)
- In effect from
- Nov 20, 2009, 7:00 AM PST
- Expired
- Nov 21, 2009, 1:00 AM PST
- In force
- 18 hr
- Issued by
- NWS Medford, OR
County Siskiyou County, CA
The radar
The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 22:20 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 20, 9:13 AM PST | HEAVY SNOW 0.5 | 5 Nw Mount Shasta, CA | SPITTY LIGHT RAIN HAS CHANGED OVER TO HEAVY SNOW. LAWN HAS BEEN COVERED IN 15 MINUTES OR LESS. ALSO, STRONG WINDS FOR THE LAST 12+ HOURS. ELEVATION 3800 FEET, NEAR BLACK BUTTE AND INTERSTATE 5. |
| Nov 20, 10:07 AM PST | HEAVY SNOW 2 | N Tennant, CA | EXTREMELY HEAVY SNOW ESTIMATED TO BE FALLING AT THE RATE OF 2-3 INCHES PER HOUR. INCHES ON THE GROUND. ELEVATION 4850 FEET. CURRENT TEMERATURE 21 DEGREES F. VISIBILITY 300 FEET. |
| Nov 20, 10:18 AM PST | HEAVY SNOW 1.5 | Ssw Tennant, CA | SNOWING HEAVILY WITH 1-1.5 INCHES IN ONE HOUR SINCE IT BEGAN. ESTIMATED WINDS OF 25 TO 30 MPH OR HIGHER BEFORE SNOW BEGAN WHICH BLEW A TARP OFF OF THE NEIGHBORS ROOF. |
| Nov 20, 11:39 AM PST | SNOW 2 | Ese Mount Shasta, CA | HVY SNOW FROM 0830-0900 PST. NOW SNOWING LIGHTLY. |
| Nov 20, 12:33 PM PST | SNOW 1.5 | 1 S Mount Shasta, CA | 900 AM TO 1220 PM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.4 hours before the alert went out and 89 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS46 KMFR 192221 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 221 PM PST THU NOV 19 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS FRIDAY AND FRIDAY NIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA FRIDAY MORNING THROUGH FRIDAY NIGHT. SNOW LEVELS ARE EXPECTED TO BE BETWEEN 3000 AND 4000 FEET FOR MOST OF THE PERIOD...WITH GUSTY WINDS ABOVE 4000 FEET. MODERATE TO HEAVY SNOW ACCUMULATIONS ARE EXPECTED. CAZ082-083-201500- /O.UPG.KMFR.WS.A.0008.091120T1500Z-091121T0300Z/ /O.NEW.KMFR.WS.W.0007.091120T1500Z-091121T0300Z/ SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...DUNSMUIR...MCCLOUD... TENNANT 221 PM PST THU NOV 19 2009 ...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY. THIS UPGRADES THE WINTER STORM WATCH. A STRONG FRONTAL SYSTEM WILL PUSH INTO THE AREA FRIDAY MORNING... BRINGING A SHORT DURATION OF HEAVY PRECIPITATION TO THE MOUNT SHASTA AREA. SNOW LEVELS WILL INITIALLY BE NEAR 3500 FEET ON FRIDAY MORNING. SNOW LEVELS MAY RISE BRIEFLY TO 4000 FEET DURING THE DAY ON FRIDAY...AND WILL THEN FALL TO 2500 TO 3000 FEET FRIDAY EVENING BEFORE PRECIPITATION TAPERS OFF LATE FRIDAY NIGHT. SNOW ACCUMULATION OF 4 TO 8 INCHES IS EXPECTED BELOW 4000 FEET ON FRIDAY THROUGH EARLY FRIDAY EVENING...WITH 7 TO 14 INCHES EXPECTED ABOVE 4000 FEET. WINDS WILL GENERALLY BE LIGHT BELOW 4500 FEET WITH THIS STORM SYSTEM. ABOVE 4500 FEET SOUTH TO SOUTHWEST WINDS OF 20 TO 40 MPH WITH HIGHER GUSTS ARE EXPECTED. THESE HIGHER WINDS WILL TRANSPORT SNOW AND REDUCE VISIBILITIES TO LESS THAN ONE QUARTER OF A MILE. THE HEAVIEST SNOWFALL IS CURRENTLY EXPECTED MID TO LATE MORNING ON FRIDAY. DURING THIS TIME PERIOD SNOWFALL RATES ARE LIKELY TO EXCEED ONE INCH PER HOUR. THE HIGHEST ACCUMULATIONS ARE LIKELY TO BE ABOVE 4000 FEET ON AND NEAR THE SOUTH SIDE OF MOUNT SHASTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ080-ORZ027-028-201500- /O.NEW.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW... CRATER LAKE...CRESCENT LAKE...DIAMOND LAKE...UNION CREEK... HOWARD PRAIRIE...SISKIYOU SUMMIT 221 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY ABOVE 4000 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY. * TIMING: SNOWFALL IS EXPECTED TO BEGIN EARLY FRIDAY MORNING...AND THEN WILL TAPER OFF TO SNOW SHOWERS FRIDAY NIGHT. * SNOW ACCUMULATIONS: SNOW ACCUMULATIONS OF 6 TO 12 INCHES IS EXPECTED IN WESTERN SISKIYOU COUNTY ABOVE 4000 FEET...AND 6 TO 14 INCHES IN THE OREGON CASCADES AND SISKIYOUS ABOVE 4000 FEET. LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FOOT ELEVATIONS. BELOW 4000 FEET AMOUNTS WILL RANGE AMOUNTS WILL BE 6 INCHES OR LESS. * SNOW LEVELS: SNOW LEVELS WILL BEGIN NEAR 4000 FEET ON FRIDAY MORNING...AND THEN WILL FALL TO BETWEEN 2500 AND 3500 FEET FRIDAY EVENING AND NIGHT. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 ON AND NEAR SISKIYOU SUMMIT...ALONG AND NEAR THE MOUNT ASHLAND SKI ROAD...AS WELL AS IN THE CRATER AND DIAMOND LAKE AREAS...AND NEAR AND NORTH OF UNION CREEK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ CAZ081-084-085-ORZ029-030-201500- /O.NEW.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ CENTRAL SISKIYOU COUNTY- NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...YREKA...WEED...TULELAKE...DORRIS... ALTURAS...ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT... CRESCENT...GILCHRIST...SPRAGUE RIVER 221 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY ABOVE 3500 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY. * TIMING: SNOW WILL DEVELOP ACROSS THE AREA ON FRIDAY MORNING...INITIALLY REACHING AREAS NEAR THE CASCADES...AND THEN PROGRESSING NORTH AND EASTWARD. LATE FRIDAY MORNING THROUGH FRIDAY AFTERNOON SNOWFALL RATES WILL BE THE HEAVIEST. * SNOW ACCUMULATIONS: ACCUMULATIONS OF 2 TO 7 INCHES IS EXPECTED ACROSS THE AREA...WITH THE HIGHER END TOTALS AT HIGHER ELEVATIONS...GENERALLY ABOVE 4500 FEET...AND THE LESSER AMOUNTS BELOW 4500 FEET. LESS THAN 2 INCHES IS EXPECTED BELOW 3500 FEET. * SNOW LEVELS: SNOW LEVELS WILL BEGIN BETWEEN 3500 AND 4500 FEET ACROSS THE REGION...AND THEN WILL FALL TO BETWEEN 3000 AND 4000 FEET FRIDAY EVENING. * IMPACTS: EXPECTED IMPACTS WILL PRIMARILY BE ON AREA ROADWAYS ABOVE 4500 FEET...BUT WILL LOWER DURING THE COURSE OF TIME TO 3500 FEET. AREAS AFFECTED WILL BE CHEMULT...BLY MOUNTAIN...LAVA BEDS...AND THE WARNER MOUNTAINS. IS SOME OF THE HIGHER ELEVATION AREAS SOUTH AND SOUTHWEST WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS WILL RESULT IN PERIODS OF BLOWING AND DRIFTING SNOW THAT WILL REDUCE VISIBILITIES TO NEAR ONE QUARTER OF A MILE AT TIMES. 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. && $$ ORZ025-201500- /O.NEW.KMFR.WW.Y.0022.091121T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- INCLUDING THE CITIES OF...STEAMBOAT...TOKETEE FALLS 221 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST SATURDAY ABOVE 2500 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST SATURDAY. * TIMING: PRECIPITATION WILL MOVE INTO THE AREA ON FRIDAY WITH SNOW LEVELS INITIALLY BETWEEN 4000 AND 3500 FEET. LATE FRIDAY AFTERNOON SNOW LEVELS WILL FALL TO 2500 TO 3000 FEET WITH WIDESPREAD SNOW SHOWERS EXPECTED THROUGH EARLY SATURDAY MORNING. * SNOW ACCUMULATIONS: ACCUMULATIONS BETWEEN 2500 AND 3500 FEET WILL GENERALLY RANGE FROM 1 TO 4 INCHES. DURING THE ADVISORY PERIOD. * IMPACTS:IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BTL/NSK
5 follow-up statements
000 WWUS46 KMFR 200119 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 519 PM PST THU NOV 19 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS FRIDAY AND FRIDAY NIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA FRIDAY MORNING THROUGH FRIDAY NIGHT. SNOW LEVELS ARE EXPECTED TO BE BETWEEN 3000 AND 4000 FEET FOR MOST OF THE PERIOD...WITH GUSTY WINDS ABOVE 4000 FEET. MODERATE TO HEAVY SNOW ACCUMULATIONS ARE EXPECTED. CAZ083-201200- /O.CON.KMFR.WS.W.0007.091120T1500Z-091121T0300Z/ NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITY OF...TENNANT 519 PM PST THU NOV 19 2009 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FOR HEAVY SNOW FROM 7 AM TO 7 PM PST FRIDAY. SNOW LEVELS NEAR 3500 FEET FRIDAY MORNING MAY RISE BRIEFLY TO 4000 FEET DURING THE DAY...BUT WILL FALL TO 2500 TO 3000 FEET FRIDAY EVENING BEFORE PRECIPITATION TAPERS OFF LATE FRIDAY NIGHT. SNOW ACCUMULATIONS OF 4 TO 8 INCHES WILL OCCUR BETWEEN 3000 AND 4000 FEET FRIDAY THROUGH EARLY FRIDAY EVENING...WITH 7 TO 14 INCHES ABOVE 4000 FEET. THE HEAVIEST SNOW WILL OCCUR BETWEEN 8 AM AND NOON FRIDAY WITH SNOWFALL RATES LIKELY EXCEEDING ONE INCH PER HOUR. THE HIGHEST ACCUMULATION WILL BE ABOVE 4000 FEET AROUND THE SOUTH SIDE OF MOUNT SHASTA. WINDS WILL GENERALLY BE LIGHT BELOW 4500 FEET WITH THIS STORM. SOUTH TO SOUTHWEST WINDS OF 20 TO 40 MPH WITH HIGHER GUSTS ARE EXPECTED ABOVE 4500 FEET. THESE WINDS WILL TRANSPORT SNOW AND REDUCE VISIBILITIES TO LESS THAN ONE QUARTER OF A MILE. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ082-201200- /O.CON.KMFR.WS.W.0007.091120T1500Z-091121T0300Z/ SOUTH CENTRAL SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...MCCLOUD 519 PM PST THU NOV 19 2009 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY ABOVE 3000 FEET... A WINTER STORM WARNING FOR HEAVY SNOW ABOVE 3000 FEET REMAINS IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY. SNOW LEVELS NEAR 3500 FEET FRIDAY MORNING MAY RISE BRIEFLY TO 4000 FEET DURING THE DAY...BUT WILL FALL TO 2500 TO 3000 FEET FRIDAY EVENING BEFORE PRECIPITATION TAPERS OFF LATE FRIDAY NIGHT. SNOW ACCUMULATIONS OF 4 TO 8 INCHES WILL OCCUR BETWEEN 3000 AND 4000 FEET FRIDAY THROUGH EARLY FRIDAY EVENING...WITH 7 TO 14 INCHES ABOVE 4000 FEET. THE HEAVIEST SNOW WILL OCCUR BETWEEN 8 AM AND NOON FRIDAY WITH SNOWFALL RATES LIKELY EXCEEDING ONE INCH PER HOUR. THE HIGHEST ACCUMULATION WILL BE ABOVE 4000 FEET AROUND THE SOUTH SIDE OF MOUNT SHASTA. WINDS WILL GENERALLY BE LIGHT BELOW 4500 FEET WITH THIS STORM. SOUTH TO SOUTHWEST WINDS OF 20 TO 40 MPH WITH HIGHER GUSTS ARE EXPECTED ABOVE 4500 FEET. THESE WINDS WILL TRANSPORT SNOW AND REDUCE VISIBILITIES TO LESS THAN ONE QUARTER OF A MILE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ ORZ027-028-201200- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...CRATER LAKE...CRESCENT LAKE... DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...SISKIYOU SUMMIT 519 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY. * TIMING: SNOWFALL IS EXPECTED TO BEGIN EARLY FRIDAY MORNING... AND THEN WILL TAPER OFF TO SNOW SHOWERS FRIDAY NIGHT. * SNOW ACCUMULATIONS: SNOW ACCUMULATIONS OF 6 TO 14 INCHES ARE EXPECTED WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FOOT ELEVATIONS. * SNOW LEVELS: SNOW LEVELS WILL BEGIN NEAR 4000 FEET ON FRIDAY MORNING...AND THEN WILL FALL TO VALLEY FLOORS FRIDAY EVENING AND NIGHT. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. 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. && $$ CAZ084-085-ORZ029-030-201200- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTURAS... ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT...CRESCENT... GILCHRIST...SPRAGUE RIVER 519 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY. * TIMING: SNOW WILL DEVELOP FRIDAY MORNING...INITIALLY REACHING AREAS NEAR THE CASCADES...AND THEN PROGRESSING NORTH AND EASTWARD. SNOWFALL RATES WILL BE THE HEAVIEST LATE FRIDAY MORNING THROUGH AFTERNOON. * SNOW ACCUMULATIONS: ACCUMULATIONS OF 2 TO 7 INCHES ARE EXPECTED ACROSS THE AREA...HIGHEST ABOVE 4500 FEET. * SNOW LEVELS: SNOW LEVELS BETWEEN 3500 AND 4500 FEET WILL DROP TO 3000 TO 4000 FEET FRIDAY EVENING. * IMPACTS: EXPECTED IMPACTS WILL PRIMARILY BE ON AREA ROADWAYS ABOVE 4500 FEET...BUT WILL LOWER DURING THE COURSE OF TIME TO 3500 FEET. AREAS AFFECTED WILL BE CHEMULT...BLY MOUNTAIN... LAVA BEDS...AND THE WARNER MOUNTAINS. ACROSS HIGHER ELEVATIONS SOUTHWEST WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS WILL RESULT IN PERIODS OF BLOWING AND DRIFTING SNOW THAT WILL REDUCE VISIBILITIES TO NEAR ONE QUARTER OF A MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ ORZ025-201200- /O.CON.KMFR.WW.Y.0022.091121T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- 519 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST SATURDAY ABOVE 2500 FEET... A WINTER WEATHER ADVISORY FOR SNOW ABOVE 2500 FEET REMAINS IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST SATURDAY. * TIMING: PRECIPITATION WILL MOVE INTO THE AREA ON FRIDAY WITH SNOW LEVELS INITIALLY BETWEEN 4000 AND 3500 FEET. LATE FRIDAY AFTERNOON SNOW LEVELS WILL FALL TO 2500 TO 3000 FEET WITH WIDESPREAD SNOW SHOWERS EXPECTED THROUGH EARLY SATURDAY MORNING. * SNOW ACCUMULATIONS: ACCUMULATIONS BETWEEN 2500 AND 3500 FEET WILL GENERALLY RANGE FROM 1 TO 4 INCHES. * IMPACTS:IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. 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. && $$ CAZ080-081-201200- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- INCLUDING THE CITY OF...WEED 519 PM PST THU NOV 19 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY FOR SNOW ABOVE 3500 FEET REMAINS IN EFFECT FROM 7 AM FRIDAY TO 1 AM PST SATURDAY. * TIMING: SNOWFALL IS EXPECTED TO BEGIN EARLY FRIDAY MORNING... AND THEN WILL TAPER OFF TO SNOW SHOWERS FRIDAY NIGHT. * SNOW ACCUMULATIONS: 6 TO 12 INCHES ARE EXPECTED ABOVE 4000 FEET WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FEET. 3 TO 6 INCHES ARE EXPECTED BETWEEN 3500 AND 4000 FEET. * SNOW LEVELS: SNOW LEVELS WILL BEGIN NEAR 4000 FEET ON FRIDAY MORNING...AND THEN WILL FALL TO BETWEEN 2500 AND 3500 FEET FRIDAY EVENING AND NIGHT. * IMPACTS: HIGHER ELEVATIONS INCLUDING HIGHWAY 3 NEAR CALLAHAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ STAVISH
000 WWUS46 KMFR 201158 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 358 AM PST FRI NOV 20 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS THROUGH TONIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA THROUGH TONIGHT. SNOW LEVELS NEAR 5000 FEET AHEAD OF THE FRONT WILL DROP TO BETWEEN 3000 AND 4000 FEET...WITH GUSTY WINDS ABOVE 4000 FEET. MODERATE TO HEAVY SNOW ACCUMULATIONS ARE EXPECTED. CAZ083-202000- /O.CON.KMFR.WS.W.0007.091120T1500Z-091121T0300Z/ NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITY OF...TENNANT 358 AM PST FRI NOV 20 2009 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM PST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM PST THIS EVENING. SNOW LEVELS NEAR 5000 FEET EARLY THIS MORNING WILL FALL TO 4000 FEET DURING THE DAY...AND FALL FURTHER TO 2500 TO 3000 FEET THIS EVENING BEFORE PRECIPITATION TAPERS OFF LATE TONIGHT. SNOW ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR BETWEEN 3000 AND 4000 FEET THROUGH THIS EVENING...WITH 5 TO 10 INCHES ABOVE 4000 FEET. THE HEAVIEST SNOW WILL OCCUR BETWEEN 8 AM AND NOON WITH SNOWFALL RATES LIKELY EXCEEDING ONE INCH PER HOUR. WINDS WILL GENERALLY BE BREEZY BELOW 4500 FEET WITH THIS STORM. SOUTH TO SOUTHWEST WINDS OF 20 TO 40 MPH WITH HIGHER GUSTS ARE EXPECTED ABOVE 4500 FEET. THESE WINDS WILL TRANSPORT SNOW AND REDUCE VISIBILITIES TO LESS THAN ONE QUARTER OF A MILE. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ082-202000- /O.CON.KMFR.WS.W.0007.091120T1500Z-091121T0300Z/ SOUTH CENTRAL SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...MCCLOUD 358 AM PST FRI NOV 20 2009 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM PST THIS EVENING ABOVE 3000 FEET... A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM PST THIS EVENING. SNOW LEVELS NEAR 5000 FEET EARLY THIS MORNING WILL FALL TO 4000 FEET DURING THE DAY...THEN FALL TO 2500 TO 3000 FEET THIS EVENING BEFORE PRECIPITATION TAPERS OFF LATE TONIGHT. SNOW ACCUMULATIONS OF 3 TO 8 INCHES WILL OCCUR BETWEEN 3000 AND 4000 FEET THROUGH EARLY THIS EVENING...WITH 7 TO 14 INCHES ABOVE 4000 FEET. THE HEAVIEST SNOW WILL OCCUR BETWEEN 8 AM AND NOON WITH SNOWFALL RATES LIKELY EXCEEDING ONE INCH PER HOUR. THE HIGHEST ACCUMULATION WILL BE ABOVE 4000 FEET AROUND THE SOUTH SIDE OF MOUNT SHASTA. WINDS WILL GENERALLY BE BREEZY BELOW 4500 FEET WITH THIS STORM. SOUTH TO SOUTHWEST WINDS OF 20 TO 40 MPH WITH HIGHER GUSTS ARE EXPECTED ABOVE 4500 FEET. THESE WINDS WILL TRANSPORT SNOW AND REDUCE VISIBILITIES TO LESS THAN ONE QUARTER OF A MILE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ ORZ027-028-202000- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...CRATER LAKE...CRESCENT LAKE... DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...SISKIYOU SUMMIT 358 AM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY. * TIMING: SNOWFALL WILL BEGIN AROUND SUNRISE THIS MORNING...AND THEN WILL TAPER OFF TO SNOW SHOWERS LATE THIS EVENING. * SNOW ACCUMULATIONS: SNOW ACCUMULATIONS OF 6 TO 14 INCHES ARE EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 5500 FEET. * SNOW LEVELS: SNOW LEVELS NEAR 5000 FEET THIS MORNING...WILL FALL TO 3500 FEET LATE THIS MORNING. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. 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. && $$ CAZ084-085-ORZ029-030-202000- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTURAS... ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT...CRESCENT... GILCHRIST...SPRAGUE RIVER 358 AM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY. * TIMING: SNOW WILL DEVELOP THIS MORNING...INITIALLY REACHING AREAS NEAR THE CASCADES...AND THEN PROGRESSING NORTH AND EASTWARD. SNOWFALL RATES WILL BE THE HEAVIEST LATE THIS MORNING THROUGH THE AFTERNOON. * SNOW ACCUMULATIONS: ACCUMULATIONS OF 2 TO 7 INCHES ARE EXPECTED ACROSS THE AREA...HIGHEST ABOVE 4500 FEET. * SNOW LEVELS: SNOW LEVELS NEAR 5000 FEET WILL DROP TO VALLEY FLOORS LATE THIS AFTERNOON. * IMPACTS: EXPECTED IMPACTS WILL PRIMARILY BE ON AREA ROADWAYS ABOVE 4500 FEET...BUT WILL LOWER DURING THE COURSE OF TIME TO 3500 FEET. AREAS AFFECTED WILL BE CHEMULT...BLY MOUNTAIN... LAVA BEDS...AND THE WARNER MOUNTAINS. ACROSS HIGHER ELEVATIONS SOUTHWEST WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS WILL RESULT IN PERIODS OF BLOWING AND DRIFTING SNOW THAT WILL REDUCE VISIBILITIES TO NEAR ONE QUARTER OF A MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ ORZ025-202000- /O.CON.KMFR.WW.Y.0022.091121T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- 358 AM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY ABOVE 2500 FEET... A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY. * TIMING: PRECIPITATION WILL MOVE INTO THE AREA THIS MORNING WITH SNOW LEVELS INITIALLY BETWEEN 4000 AND 4500 FEET. LATE THIS AFTERNOON SNOW LEVELS WILL FALL TO 2500 TO 3000 FEET WITH WIDESPREAD SNOW SHOWERS EXPECTED THROUGH EARLY SATURDAY MORNING. * SNOW ACCUMULATIONS: ACCUMULATIONS BETWEEN 2500 AND 3500 FEET WILL GENERALLY RANGE FROM 1 TO 4 INCHES. * IMPACTS:IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. 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. && $$ CAZ080-081-202000- /O.CON.KMFR.WW.Y.0022.091120T1500Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- INCLUDING THE CITY OF...WEED 358 AM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM PST SATURDAY. * TIMING: SNOWFALL IS EXPECTED TO BEGIN EARLY THIS MORNING...AND THEN WILL TAPER OFF TO SNOW SHOWERS LATE THIS EVENING. * SNOW ACCUMULATIONS: 6 TO 12 INCHES ARE EXPECTED ABOVE 4000 FEET WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FEET. 3 TO 6 INCHES ARE EXPECTED BETWEEN 3500 AND 4000 FEET. * SNOW LEVELS: SNOW LEVELS WILL BEGIN NEAR 5000 FEET EARLY THIS MORNING...AND THEN WILL FALL TO BETWEEN 2500 AND 3500 FEET FOR THIS EVENING AND TONIGHT. * IMPACTS: HIGHER ELEVATIONS INCLUDING HIGHWAY 3 NEAR CALLAHAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ DW
000 WWUS46 KMFR 202036 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 1236 PM PST FRI NOV 20 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS THROUGH TONIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA TODAY AND TONIGHT. SNOW LEVELS WILL GRADUALLY DROP TO 2500 TO 3500 FEET LATER TONIGHT. CAZ083-210300- /O.CON.KMFR.WS.W.0007.000000T0000Z-091121T0300Z/ NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITY OF...TENNANT 1236 PM PST FRI NOV 20 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING. * TIMING: STEADIER SNOW WILL CONTINUE THROUGH ABOUT 7PM TONIGHT WITH ISOLATED SNOW SHOWERS THROUGH ABOUT MIDNIGHT. * SNOW ACCUMULATIONS: 2 TO 6 ADDITIONAL INCHES OF ACCUMULATION WITH STORM TOTAL ACCUMULATIONS OF 6 TO 14 INCHES EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 5500 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ082-210300- /O.CON.KMFR.WS.W.0007.000000T0000Z-091121T0300Z/ SOUTH CENTRAL SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...MCCLOUD 1236 PM PST FRI NOV 20 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING ABOVE 3000 FEET... A WINTER STORM WARNING ABOVE 3000 FEET REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING. * TIMING: STEADIER SNOW WILL CONTINUE THROUGH ABOUT 7PM TONIGHT WITH ISOLATED SNOW SHOWERS THROUGH ABOUT MIDNIGHT. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 4 INCHES WITH STORM TOTAL ACCUMULATION 3 TO 6 INCHES BETWEEN 3000 AND 4000 FEET AND 6 TO 12 INCHES ABOVE 4000 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ ORZ027-028-210445- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...CRATER LAKE...CRESCENT LAKE... DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...SISKIYOU SUMMIT 1236 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOWFALL WILL CONTINUE THROUGH 1 AM PST. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES WITH STORM TOTAL ACCUMULATIONS OF 6 TO 14 INCHES EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 5500 FEET. * SNOW LEVELS: NEAR VALLEY FLOORS. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. 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. && $$ CAZ084-085-ORZ029-030-210445- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTURAS... ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT...CRESCENT... GILCHRIST...SPRAGUE RIVER 1236 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOW WILL FALL THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 3 INCHES WITH STORM TOTAL ACCUMULATION OF 2 TO 7 INCHES EXPECTED ACROSS THE AREA...WITH THE HIGHEST AMOUNTS ABOVE 4500 FEET. * SNOW LEVELS: AT THE VALLEY FLOORS. * IMPACTS: EXPECTED IMPACTS WILL PRIMARILY BE ON AREA ROADWAYS ABOVE 4500 FEET...BUT WILL LOWER DURING THE COURSE OF TIME TO VALLEY FLOORS. AREAS AFFECTED WILL BE CHEMULT...BLY MOUNTAIN... LAVA BEDS...AND THE WARNER MOUNTAINS. VERY GUSTY WINDS WILL OCCUR THROUGH EARLY AFTERNOON...ESPECIALLY IN MODOC COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ ORZ025-210445- /O.CON.KMFR.WW.Y.0022.091121T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- 1236 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY ABOVE 2500 FEET... A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY. * TIMING: SNOW WILL FALL THROUGH EARLY SATURDAY MORNING. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 2 INCHES BETWEEN 2500 AND 3500 FEET WITH STORM TOTAL ACCUMULATION BETWEEN 2500 AND 3500 FEET GENERALLY 1 TO 4 INCHES. * SNOW LEVELS: CURRENT SNOW LEVELS ARE 3500 FEET AND WILL DROP TO AROUND 2500 FEET LATE TONIGHT. * IMPACTS: IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. 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. && $$ CAZ080-081-210445- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- INCLUDING THE CITY OF...WEED 1236 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOWFALL WILL TAPER OFF TO SNOW SHOWERS LATE THIS EVENING. * SNOW ACCUMULATIONS: STORM TOTAL 6 TO 12 INCHES ARE EXPECTED ABOVE 4000 FEET AND LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FEET. STORM TOTAL 3 TO 6 INCHES ARE EXPECTED BETWEEN 3500 AND 4000 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: HIGHER ELEVATIONS INCLUDING HIGHWAY 3 NEAR CALLAHAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ NK
000 WWUS46 KMFR 210239 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 639 PM PST FRI NOV 20 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS THROUGH TONIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA TONIGHT. SNOW LEVELS WILL GRADUALLY DROP TO 2500 TO 3500 FEET LATER TONIGHT. CAZ083-210900- /O.EXT.KMFR.WS.W.0007.000000T0000Z-091121T0900Z/ NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITY OF...TENNANT 639 PM PST FRI NOV 20 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 1 AM PST SATURDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: STEADIER SNOW WILL CONTINUE THROUGH ABOUT 11PM TONIGHT DECREASING TO ISOLATED SNOW SHOWERS AFTER MIDNIGHT. * SNOW ACCUMULATIONS: 2 TO 6 ADDITIONAL INCHES OF ACCUMULATION WITH STORM TOTAL ACCUMULATIONS OF 6 TO 14 INCHES EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 5500 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ082-210900- /O.EXT.KMFR.WS.W.0007.000000T0000Z-091121T0900Z/ SOUTH CENTRAL SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...MCCLOUD 639 PM PST FRI NOV 20 2009 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 1 AM PST SATURDAY ABOVE 3000 FEET... THE WINTER STORM WARNING ABOVE 3000 FEET IS NOW IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: STEADIER SNOW WILL CONTINUE THROUGH ABOUT 11PM TONIGHT DECREASING TO ISOLATED SNOW SHOWERS AFTER MIDNIGHT. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 4 INCHES WITH STORM TOTAL ACCUMULATION 3 TO 6 INCHES BETWEEN 3000 AND 4000 FEET AND 6 TO 12 INCHES ABOVE 4000 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ ORZ027-028-210900- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...CRATER LAKE...CRESCENT LAKE... DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...SISKIYOU SUMMIT 639 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOWFALL WILL CONTINUE THROUGH 1 AM PST. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 3 TO 6 INCHES WITH STORM TOTAL ACCUMULATIONS OF 6 TO 14 INCHES EXPECTED WITH LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 5500 FEET. * SNOW LEVELS: NEAR VALLEY FLOORS. * IMPACTS: EXPECTED IMPACTS WILL BE ON INTERSTATE 5 AROUND SISKIYOU SUMMIT...AROUND THE MOUNT ASHLAND SKI ROAD...AND FROM UNION CREEK NORTH THROUGH THE CRATER AND DIAMOND LAKE AREAS. 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. && $$ CAZ084-085-ORZ029-030-210900- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTURAS... ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT...CRESCENT... GILCHRIST...SPRAGUE RIVER 639 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOW WILL FALL THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 3 INCHES WITH STORM TOTAL ACCUMULATION OF 2 TO 7 INCHES EXPECTED ACROSS THE AREA...WITH THE HIGHEST AMOUNTS ABOVE 4500 FEET. * SNOW LEVELS: AT THE VALLEY FLOORS. * IMPACTS: EXPECTED IMPACTS WILL PRIMARILY BE ON AREA ROADWAYS ABOVE 4500 FEET...BUT WILL LOWER DURING THE COURSE OF TIME TO VALLEY FLOORS. AREAS AFFECTED WILL BE CHEMULT...BLY MOUNTAIN... LAVA BEDS...AND THE WARNER MOUNTAINS. VERY GUSTY WINDS WILL OCCUR THROUGH EARLY AFTERNOON...ESPECIALLY IN MODOC COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ ORZ025-211045- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- 639 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY ABOVE 2500 FEET... A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY. * TIMING: SNOW WILL FALL THROUGH EARLY SATURDAY MORNING. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 2 INCHES BETWEEN 2500 AND 3500 FEET WITH STORM TOTAL ACCUMULATION BETWEEN 2500 AND 3500 FEET GENERALLY 1 TO 4 INCHES. * SNOW LEVELS: CURRENT SNOW LEVELS ARE 3500 FEET AND WILL DROP TO AROUND 2500 FEET LATE TONIGHT. * IMPACTS: IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. 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. && $$ CAZ080-081-210900- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- INCLUDING THE CITY OF...WEED 639 PM PST FRI NOV 20 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY ABOVE 3500 FEET... A WINTER WEATHER ADVISORY ABOVE 3500 FEET REMAINS IN EFFECT UNTIL 1 AM PST SATURDAY. * TIMING: SNOWFALL WILL TAPER OFF TO SNOW SHOWERS LATE THIS EVENING. * SNOW ACCUMULATIONS: STORM TOTAL 6 TO 12 INCHES ARE EXPECTED ABOVE 4000 FEET AND LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 5500 FEET. STORM TOTAL 3 TO 6 INCHES ARE EXPECTED BETWEEN 3500 AND 4000 FEET. * SNOW LEVELS: CURRENTLY 3500 FEET AND WILL DROP TO AROUND 2500 FEET BY 7PM. * IMPACTS: HIGHER ELEVATIONS INCLUDING HIGHWAY 3 NEAR CALLAHAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
000 WWUS46 KMFR 210906 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 106 AM PST SAT NOV 21 2009 ...SNOW AND GUSTY WINDS ABOVE THE LOWER VALLEYS THROUGH TONIGHT... .A STRONG FRONTAL SYSTEM WILL PUSH ACROSS THE AREA TONIGHT. SNOW LEVELS WILL GRADUALLY DROP TO 2500 TO 3500 FEET LATER TONIGHT. CAZ082-083-211015- /O.EXP.KMFR.WS.W.0007.000000T0000Z-091121T0900Z/ SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...MCCLOUD...TENNANT 106 AM PST SAT NOV 21 2009 ...WINTER STORM WARNING HAS EXPIRED... THE WINTER STORM WARNING IS NO LONGER IN EFFECT. ISOLATED SNOW SHOWERS WILL CONTINUE OVERNIGHT WITH LITTLE ADDITIONAL SNOW ACCUMULATION. $$ CAZ080-081-084-085-ORZ027>030-211015- /O.EXP.KMFR.WW.Y.0022.000000T0000Z-091121T0900Z/ WESTERN SISKIYOU COUNTY-CENTRAL SISKIYOU COUNTY- NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-MODOC COUNTY- SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES-KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...WEED...TULELAKE...DORRIS...ALTURAS... CRATER LAKE...CRESCENT LAKE...DIAMOND LAKE...UNION CREEK... HOWARD PRAIRIE...SISKIYOU SUMMIT...ALTAMONT...KLAMATH FALLS... BEATTY...BLY...CHEMULT...CRESCENT...GILCHRIST...SPRAGUE RIVER 106 AM PST SAT NOV 21 2009 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. ISOLATED SNOW SHOWERS WILL CONTINUE OVERNIGHT WITH LITTLE ADDITIONAL SNOW ACCUMULATION. $$ ORZ025-211200- /O.CON.KMFR.WW.Y.0022.000000T0000Z-091121T1200Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- 106 AM PST SAT NOV 21 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING ABOVE 2500 FEET... A WINTER WEATHER ADVISORY ABOVE 2500 FEET REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING. * TIMING: SNOW WILL FALL THROUGH EARLY THIS MORNING. * SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATION OF 1 TO 2 INCHES BETWEEN 2500 AND 3500 FEET WITH STORM TOTAL ACCUMULATION BETWEEN 2500 AND 3500 FEET GENERALLY 1 TO 4 INCHES. * SNOW LEVELS: CURRENT SNOW LEVELS ARE 3500 FEET AND WILL DROP TO AROUND 2500 FEET EARLY THIS MORNING. * IMPACTS: IMPACTS ARE GENERALLY EXPECTED TO INCREASE WITH ELEVATION. THE MAIN AREA IMPACTED WILL LIKELY BE FROM ABOUT STEAMBOAT EASTWARD ALONG AND NEAR HIGHWAY 138 TOWARD DIAMOND LAKE. ADDITIONALLY AUXILIARY ROADS OFF OF THE HIGHWAY WILL ALSO BE SIGNIFICANTLY IMPACTED...ESPECIALLY AT HIGHER ELEVATIONS. 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. && $$ FB
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 Medford, OR wrote its last area forecast discussion before this winter storm warning went out at Nov 19, 9:06 AM PST, 5 hours 15 minutes earlier.
Area forecast discussion, Nov 19, 9:06 AM PST, 5 hours 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
906 AM PST THU NOV 19 2009
.DISCUSSION...
CURRENT HEADLINES ARE SUFFICIENT AT THIS TIME...SO NO UPDATE WILL
BE MADE TO THOSE THIS MORNING. THE ZONE FORECAST...HOWEVER...WILL
RECEIVE A CORRECTION THIS MORNING...PRIMARILY FOR SNOW LEVELS AND
SNOW AMOUNTS IN CALIFORNIA AND ACROSS THE EAST SIDE.
TODAY WE WILL DETERMINE IF WE WILL BE UPGRADING THE WATCH IN THE
MOUNT SHASTA AREA OR CONVERTING IT TO AN ADVISORY...AND WILL
DETERMINE IF WE WILL NEED ANY OTHER ADVISORIES ACROSS THE AREA FOR
SNOW AND WIND. PRELIMINARY THOUGHTS ARE THAT THE MOUNT SHASTA
SITUATION IS AN INTERESTING ONE DUE TO THE FACT THAT MOST OF THE
PRECIPITATION WILL FALL IN A SIX HOUR PERIOD...BUT WITH
PRECIPITATION RATES OF ONE TO TWO TENTHS OF AN INCH OF WATER PER
HOUR. MODELS INDICATE SNOW LEVELS BETWEEN 3000 AND 4000 FEET...AND
HAVE TRENDED UP A LITTLE ON THE LATEST GUIDANCE EXPERIENCE
INDICATES THAT PRECIPITATION RATES ARE LIKELY TO OVERWHELM WHAT
WARMER AIR IS AT THE SURFACE. WILL DETERMINE WHAT TO DO BY THIS
AFTERNOON...BUT AM CURRENTLY LEANING TOWARD A WARNING FOR ZONE 82
AND AN ADVISORY FOR ZONE 83.
ELSEWHERE EXPECT WE WILL NEED AN ADVISORY FOR WIND IN THE SHASTA
VALLEY AND POSSIBLY A SNOW ADVISORY OR TWO ON THE EAST SIDE. THESE
DECISIONS WILL BE MADE BEFORE OR WITH THE AFTERNOON PACKAGE.
&&
.AVIATION...
AREAS OF FOG EXIST IN THE WEST SIDE VALLEYS FROM THE ROGUE VALLEY
SOUTHWARD...TO INCLUDE THE SCOTT AND KLAMATH VALLEYS. WITH LITTLE
CHANGE IN THE ATMOSPHERIC PROFILE EXPECTED UNTIL LATE MORNING
...EXPECT THAT THESE AREAS WILL HAVE A DIFFICULT TIME LIFTING
BEYOND IFR UNTIL LATE MORNING TO ABOUT NOON. THEREAFTER...EXPECT
IMPROVEMENT AS HIGHER WINDS COME IN ABOVE THE BOUNDARY LAYER.
ELSEWHERE MVFR CONDITIONS WILL DEVELOP DURING THE AFTERNOON ALONG
THE COAST WITH TERRAIN OBSCURATIONS IN THE COASTAL MOUNTAINS.
INCREASING WINDS OVER THE HIGH TERRAIN AND ALONG THE COAST WILL
LEAD TO SOME BUMPY AIR AS WELL AS WINDS SHEAR CONDITIONS ALONG AND
NEAR THE COAST. THE FRONT WILL MOVE INLAND BEGINNING AROUND
MIDNIGHT WITH STRONG TO MODERATE WINDS...HEAVY PRECIPITATION...
RAPIDLY FALLING SNOW LEVELS AND ASSOCIATED LOW MVFR TO LIFR CIGS
AND VIS. LUTZ
&&
.PREV DISCUSSION... /ISSUED 439 AM PST THU NOV 19 2009/
DISCUSSION...THE MAIN ITEM OF INTEREST REMAINS THE STRENGTH AND
TIMING OF THE COLD FRONT OFFSHORE. THE LATEST 06Z GFS DATA IS
WEAKER THAN THE 00Z RUN BUT STILL QUITE STRONG. HOWEVER...IT
SHOULD BE NOTED THAT OFTEN THE 12Z GFS MODEL RUN WILL MORE CLOSELY
AND MORE ACCURATELY RESEMBLE THE 00Z RUN RATHER THAN THE 06Z RUN.
IN THIS INSTANCE...THE RUN TO RUN DIFFERENCES WILL IMPACT THE
POSSIBILITY OF WIND ADVISORY LEVEL WINDS DEVELOPING IN THE SHASTA
VALLEY TONIGHT INTO EARLY FRIDAY AND ALSO SNOWFALL AMOUNTS. HIGH
WINDS ARE STILL EXPECTED AT THE COAST FROM LATE THIS AFTERNOON
UNTIL AFTER THE FRONT PASSES INLAND FRIDAY MORNING.
TEMPERATURES WERE RAISED A FEW DEGREES AND POPS INLAND WERE
LOWERED FOR TODAY AND THIS EVENING AS THERE IS GOOD MODEL
CONSISTENCY IN THE DEPICTION OF THE FRONT COMING IN CLOSER TO
PARALLEL WITH THE COAST AND HOLDING OFF UNTIL EARLY FRIDAY
MORNING. I HAVE ADDED ISOLATED THUNDERSTORMS TO THE COASTAL WATERS
AND COASTAL FORECAST FOR FRIDAY MORNING WITH THE 00Z AND 06Z GFS
SHOWING LIFTED INDICES OF -1 TO -2. THERE IS ALSO QUITE CLOSE
AGREEMENT ON SNOW LEVELS RANGING FROM 3000 TO 4000 FEET DURING THE
EVENT FRIDAY...FALLING TO AROUND 2500 FEET FRIDAY EVENING THEN
DOWN TO 2000 FEET AS SHOWERS TAPER OFF LATER FRIDAY NIGHT.
ANOTHER WEAKER COLD FRONT WILL FOLLOW SATURDAY AFTERNOON AND
NIGHT. HOWEVER...IT WILL STILL BE QUITE COLD AND WET WITH SNOW
LEVELS EXPECTED TO ONCE AGAIN BE AROUND 3500 FEET.
THE 00Z ECWMF AND 06Z GFS WERE BOTH NOT AS STRONG WITH RIDGING
SUNDAY. THUS...POPS HAVE BEEN RAISED WITH SHOWERS LIKELY WEST OF
THE CASCADES...ESPECIALLY NORTH OF THE UMPQUA DIVIDE AND A CHANCE
OF SHOWERS ON THE EAST SIDE WITH SNOW LEVELS FORECAST NEAR 4000 FEET.
THERE IS SUBSTANTIAL UNCERTAINTY ON WHETHER RIDGING OVER
CALIFORNIA WILL STRENGTHEN EARLY NEXT WEEK. EITHER...THE PATTERN
WILL DRY AND VALLEY FOG WILL DEVELOP WITH THE STORM TRACK PUSHED
NORTH OF OUR REGION OR ONSHORE FLOW WILL KEEP THE REGION SHOWERY.
CERTAINLY THERE IS A HIGHER PROBABILITY OF SHOWERS MONDAY THROUGH
WEDNESDAY AS ONE GOES FARTHER TO THE NORTH AND WEST.
CONFIDENCE IS LOWER THAN NORMAL FOR DAY SEVEN/THE HOLIDAY
FORECAST. THE 00Z ECMWF IS MUCH STRONGER AND COLDER THAN THE 06Z
GFS...BUT BOTH INDICATE A FRONT TO PASS THROUGH WEDNESDAY NIGHT
INTO THURSDAY.
AVIATION...SPEED SHEAR IS EXPECTED IN THE VICINITY OF THE COAST
TODAY AS THE COLD FRONT OFFSHORE MOVES TOWARD THE COAST. VALLEY
LOW CLOUDS AND FOG THIS MORNING ARE PATCHY AND PRIMARILY IN THE
ROGUE VALLEY. OTHERWISE...ISOLATED MVFR AND OBSCURATION OF THE
HIGHER TERRAIN WITH MID AND HIGH LEVEL CLOUDS. RAIN AND MVFR
CEILINGS ARE EXPECTED TO ARRIVE AT THE COAST LATE TONIGHT AND
PERSIST INTO FRIDAY MORNING.
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...HIGH WIND WARNING FROM 4 PM THIS AFTERNOON TO 10 AM PST FRIDAY
FOR ORZ021-ORZ022.
CA...WINTER STORM WATCH FROM FRIDAY MORNING THROUGH FRIDAY EVENING
FOR CAZ082-CAZ083.
PACIFIC COASTAL WATERS...SMALL CRAFT ADVISORY FOR WINDS UNTIL 10 AM
PST THIS MORNING FOR PZZ356.
GALE WARNING UNTIL 10 AM PST FRIDAY FOR PZZ356.
HAZARDOUS SEAS WARNING UNTIL 4 AM PST SUNDAY FOR PZZ350-PZZ356-
PZZ370-PZZ376.
GALE WARNING UNTIL 10 AM PST FRIDAY FOR PZZ350-PZZ370-PZZ376.
BTL/NSK/DWHazardous weather outlook, Nov 19, 4:27 AM PST, 9 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 427 AM PST THU NOV 19 2009 ORZ021-022-201200- SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- 427 AM PST THU NOV 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST OREGON. .DAY ONE...TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT FROM 4 PM PST THROUGH THE REST OF THURSDAY. SEE WEATHER MESSAGE FOR SPECIFIC DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE HIGH WIND WARNING IS IN EFFECT UNTIL 10 AM PST FRIDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ082-083-201200- SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- 427 AM PST THU NOV 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A WINTER STORM WATCH FOR HEAVY SNOW IS IN EFFECT FRIDAY MORNING THROUGH FRIDAY EVENING. SEE WEATHER MESSAGE FOR SPECIFIC DETAILS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. SUGDEN
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 19, 11:55 AM PST | Wind Advisory | MFR | Modoc, Siskiyou | 23 hr |
| Nov 19, 2:21 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 37 hr |
Nearby
Winter Storm Warnings in California, 2009Every winter storm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.