Alert archive / Oregon / Snow Advisories in 2007
Snow Advisory 21, NWS Medford, OR
NWS Medford, OR issued this snow advisory at Dec 19, 2007, 2:32 AM PST for 4 counties in Oregon. It took effect at Dec 19, 2007, 6:00 PM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 19, 2007, 2:32 AM PST (10:32 UTC)
- In effect from
- Dec 19, 2007, 6:00 PM PST
- Expired
- Dec 19, 2007, 1:51 PM PST
- In force
- Issued by
- NWS Medford, OR
Counties Douglas County, OR, Jackson County, OR, Josephine County, OR, Klamath County, OR
The radar
The Medford radar (KMAX), 68 km from the middle of the area, began a volume at 10:34 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.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 10.5 hours before the alert went out and 36 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
- 1168 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS46 KMFR 191032 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 232 AM PST WED DEC 19 2007 CAZ082-083-191845- /O.UPG.KMFR.WS.A.0006.071220T0000Z-071220T1500Z/ /O.NEW.KMFR.WS.W.0004.071220T0200Z-071220T1700Z/ SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITIES OF...MOUNT SHASTA...DUNSMUIR...MCCLOUD... TENNANT 232 AM PST WED DEC 19 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY ABOVE 3500 FEET... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. A WEATHER SYSTEM JUST OFF THE COAST WILL MOVE ONSHORE BY LATE MORNING. GENERALLY LIGHT SNOW AMOUNTS CAN BE EXPECTED WITH THIS INITIAL SYSTEM. SNOW LEVELS WILL START OUT TODAY AROUND 3500 TO 4000 FEET THEN LOWER TO BELOW 3000 FEET BY THURSDAY MORNING. A SECOND STRONGER SYSTEM WILL APPROACH THE COAST LATER THIS AFTERNOON THEN MOVE ONSHORE OVERNIGHT. SNOWFALL IS EXPECTED TO BECOME HEAVY AT TIMES WITH 6 TO 10 INCHES ACCUMULATING BY THURSDAY MORNING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ CAZ080-191845- /O.NEW.KMFR.WS.W.0004.071220T0200Z-071220T1700Z/ WESTERN SISKIYOU COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW 232 AM PST WED DEC 19 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY ABOVE 3500 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. A WEATHER SYSTEM JUST OFF THE COAST WILL MOVE ONSHORE BY LATE MORNING. GENERALLY LIGHT SNOW AMOUNTS CAN BE EXPECTED WITH THIS INITIAL SYSTEM. SNOW LEVELS WILL START OUT TODAY AROUND 3500 TO 4000 FEET THEN LOWER TO BELOW 3000 FEET BY THURSDAY MORNING. A SECOND STRONGER SYSTEM WILL APPROACH THE COAST LATER THIS AFTERNOON THEN MOVE ONSHORE OVERNIGHT. SNOWFALL IS EXPECTED TO BECOME HEAVY AT TIMES WITH 6 TO 10 INCHES ACCUMULATING BY THURSDAY MORNING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ ORZ027-028-191845- /O.NEW.KMFR.SN.Y.0021.071220T0200Z-071220T1700Z/ 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 232 AM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. A WEATHER SYSTEM JUST OFF THE COAST WILL MOVE ONSHORE BY LATE MORNING. GENERALLY LIGHT SNOW AMOUNTS CAN BE EXPECTED WITH THIS INITIAL SYSTEM. SNOW LEVELS WILL START OUT TODAY AROUND 3500 TO 4000 FEET THEN LOWER TO BELOW 3000 FEET BY THURSDAY MORNING. A SECOND STRONGER SYSTEM WILL APPROACH THE COAST LATER THIS AFTERNOON THEN MOVE ONSHORE OVERNIGHT. SNOWFALL IS EXPECTED TO BECOME HEAVY AT TIMES WITH 6 TO 11 INCHES ACCUMULATING BY THURSDAY MORNING. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ HOLTZ
2 follow-up statements
000 WWUS46 KMFR 191703 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 903 AM PST WED DEC 19 2007 CAZ080-082-083-200115- /O.CON.KMFR.WS.W.0004.071220T0200Z-071220T1700Z/ WESTERN SISKIYOU COUNTY-SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW... MOUNT SHASTA...DUNSMUIR...MCCLOUD...TENNANT 903 AM PST WED DEC 19 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. THE LEADING EDGE OF A WARM FRONT HAS MOVED ONSHORE THIS MORNING. SNOW LEVELS WILL GENERALLY REMAIN ABOVE 4000 FEET TODAY BEFORE FALLING TO BELOW 3000 FEET OVERNIGHT AS A TRAILING COLD FRONT PUSHES THROUGH THE AREA. SNOWFALL IS EXPECTED TO BECOME HEAVY AT TIMES WITH 6 TO 10 INCHES ACCUMULATING BY THURSDAY MORNING. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ ORZ027-028-200115- /O.CON.KMFR.SN.Y.0021.071220T0200Z-071220T1700Z/ 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 903 AM PST WED DEC 19 2007 ...SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY... A SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. THE LEADING EDGE OF A WARM FRONT HAS MOVED ONSHORE THIS MORNING. SNOW LEVELS WILL GENERALLY REMAIN ABOVE 4000 FEET TODAY BEFORE FALLING TO BELOW 3000 FEET OVERNIGHT AS A TRAILING COLD FRONT PUSHES THROUGH THE AREA. SNOWFALL IS EXPECTED TO BECOME HEAVY AT TIMES WITH 6 TO 11 INCHES ACCUMULATING BY THURSDAY MORNING. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
000 WWUS46 KMFR 192151 WSWMFR URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 151 PM PST WED DEC 19 2007 ORZ027-028-200600- /O.UPG.KMFR.SN.Y.0021.071220T0200Z-071220T1700Z/ /O.EXB.KMFR.WS.W.0004.071220T0200Z-071220T1800Z/ SOUTH CENTRAL OREGON CASCADES- SISKIYOU MOUNTAINS AND SOUTHERN OREGON CASCADES- INCLUDING THE CITIES OF...CRATER LAKE...CRESCENT LAKE... DIAMOND LAKE...UNION CREEK...HOWARD PRAIRIE...SISKIYOU SUMMIT 151 PM PST WED DEC 19 2007 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST THURSDAY... ...SNOW ADVISORY NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST THURSDAY. THE SNOW ADVISORY IS NO LONGER IN EFFECT. A STRONG PACIFIC COLD FRONT WILL PUSH THROUGH THE AREA TONIGHT. SNOW LEVELS WILL START AROUND 4000 FEET BUT FALL RAPIDLY THIS EVENING. TOTAL STORM ACCUMULATION OF 4 TO 8 INCHES AND UP TO 1 FOOT ON SOUTH FACING SLOPES IS EXPECTED BELOW 5000 FEET AND 1 TO 2 FEET OF SNOW EXPECTED ABOVE 5000 FEET. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ CAZ080-082-083-200600- /O.CON.KMFR.WS.W.0004.071220T0200Z-071220T1700Z/ WESTERN SISKIYOU COUNTY-SOUTH CENTRAL SISKIYOU COUNTY- NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW... MOUNT SHASTA...DUNSMUIR...MCCLOUD...TENNANT 151 PM PST WED DEC 19 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM PST THURSDAY. A STRONG PACIFIC COLD FRONT WILL PUSH INTO THE AREA TONIGHT. SNOW LEVEL WILL FALL FROM 4000 LOCALLY 3000 FEET TO 2000 FEET BY THURSDAY MORNING. TOTAL STORM ACCUMULATION OF 3 TO 6 INCHES AND UP TO 10 INCHES ON SOUTH FACING SLOPES IS EXPECTED BELOW 5000 FEET AND 1 TO 2 FEET OF SNOW EXPECTED ABOVE 5000 FEET. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ CAZ081-200600- /O.NEW.KMFR.SB.Y.0008.071220T0600Z-071220T1800Z/ CENTRAL SISKIYOU COUNTY- INCLUDING THE CITIES OF...YREKA...WEED 151 PM PST WED DEC 19 2007 ...SNOW AND BLOWING SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW AND BLOWING SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. SNOW ACCUMULATIONS OF 1 TO 3 INCHES AND LOCALLY UP TO 8 INCHES MAINLY OVER HIGHER TERRAIN IN SOUTHERN SHASTA VALLEY WILL COMBINE WITH SOUTH WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH TO PRODUCE POOR VISIBILITIES IN SNOW AND BLOWING SNOW CONDITIONS. A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. $$ ORZ023-200600- /O.NEW.KMFR.SN.Y.0022.071220T0600Z-071220T1800Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 151 PM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY ABOVE 1500 FOOT... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. SNOW LEVELS ARE EXPECTED TO FALL FROM 4000 FT THIS EVENING TO NEAR 1500 FOOT BY SUNRISE THURSDAY. ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED OVER HIGHER TERRAIN IN THE UMPQUA BASIN. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ ORZ025-200600- /O.NEW.KMFR.SN.Y.0022.071220T0600Z-071220T1800Z/ EASTERN DOUGLAS COUNTY FOOTHILLS- INCLUDING THE CITIES OF...STEAMBOAT...TOKETEE FALLS 151 PM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY ABOVE 2000 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. SNOW LEVELS ARE EXPECTED TO FALL FROM 4000 FT THIS EVENING TO NEAR 2000 FOOT BY SUNRISE THURSDAY. ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED BETWEEN 2000 AND 3000 FEET WITH LOCALLY UP TO 5 TO 10 INCHES ABOVE 3000 FEET. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ ORZ024-026-200600- /O.NEW.KMFR.SN.Y.0022.071220T0600Z-071220T1800Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- INCLUDING THE CITIES OF...GRANTS PASS...MEDFORD...ASHLAND 151 PM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY ABOVE 2000 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. SNOW LEVELS ARE EXPECTED TO FALL FROM 4000 FT THIS EVENING TO NEAR 2000 FOOT BY SUNRISE THURSDAY. ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED BETWEEN 2000 AND 3000 FEET WITH LOCALLY UP TO 6 INCHES ABOVE 3000 FEET. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ CAZ084-ORZ029-200600- /O.NEW.KMFR.SN.Y.0022.071220T0600Z-071220T1800Z/ NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-KLAMATH BASIN- INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTAMONT... KLAMATH FALLS 151 PM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. TOTAL STORM SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED WITH LOCAL ACCUMULATIONS UP TO 9 INCHES EXPECTED ON HIGHER TERRAIN. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ CAZ085-ORZ030-031-200600- /O.NEW.KMFR.SN.Y.0022.071220T0600Z-071220T1800Z/ MODOC COUNTY- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- CENTRAL AND EASTERN LAKE COUNTY- INCLUDING THE CITIES OF...ALTURAS...BEATTY...BLY...CHEMULT... CRESCENT...GILCHRIST...SPRAGUE RIVER...LAKEVIEW 151 PM PST WED DEC 19 2007 ...SNOW ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY. A STRONG COLD FRONT WILL PUSH INTO THE AREA TONIGHT. TOTAL STORM SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED WITH LOCAL ACCUMULATIONS UP TO 9 INCHES EXPECTED ON HIGHER TERRAIN. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 19, 2:32 AM PST | Winter Storm Warning | MFR | Douglas, Jackson, Josephine, Klamath | 30 hr |
| Dec 19, 1:51 PM PST | Snow Advisory | MFR | Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more | 19 hr |
| Dec 19, 3:56 PM PST | River Flood Watch | MFR | Coos, Curry, Douglas | 19 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.