Alert archive / California / Snow Advisories in 2007
Snow Advisory 21, NWS Reno, NV
NWS Reno, NV issued this snow advisory at Dec 16, 2007, 3:17 PM PST for Lassen County, Plumas County, Sierra County, California. It took effect at Dec 16, 2007, 6:00 PM PST. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Dec 16, 2007, 3:17 PM PST (23:17 UTC)
- In effect from
- Dec 16, 2007, 6:00 PM PST
- Expired
- Dec 17, 2007, 4:51 AM PST
- In force
- 11 hr
- Issued by
- NWS Reno, NV
Counties Lassen County, CA, Plumas County, CA, Sierra County, CA
The radar
The Beale AFB radar (KBBX), 107 km from the middle of the area, began a volume at 23:19 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
Reno, NV (KREV), launched 12:00Z, 11.3 hours before the alert went out and 217 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
- 1255 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KREV 162317 WSWREV URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 317 PM PST SUN DEC 16 2007 ...A SERIES OF WINTER STORMS TO AFFECT THE NORTHERN AND CENTRAL SIERRA THIS WEEK... .A FAST MOVING PACIFIC STORM WILL BRING A PERIOD OF WINTRY CONDITIONS TONIGHT WITH A STRONGER STORM EXPECTED TO AFFECT THE AREA MONDAY NIGHT AND TUESDAY. WHILE OCCASIONALLY MODERATE SNOW IS LIKELY IN THE NORTHERN SIERRA TONIGHT...CONDITIONS ARE EXPECTED TO RAPIDLY DETERIORATE MONDAY NIGHT AS WIDESPREAD MODERATE TO HEAVY SNOW MOVES INTO THE REGION. CAZ071-170800- /O.NEW.KREV.SN.Y.0021.071217T0200Z-071217T1800Z/ /O.CON.KREV.WS.A.0013.071218T0600Z-071219T0600Z/ LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- INCLUDING THE CITIES OF...PORTOLA...SUSANVILLE...WESTWOOD... SIERRAVILLE 317 PM PST SUN DEC 16 2007 ...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST MONDAY WEST OF HIGHWAY 395... ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A SNOW ADVISORY... WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST MONDAY. A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING. A FAST MOVING STORM WILL MOVE ACROSS NORTHEAST CALIFORNIA TONIGHT. LIGHT SNOW WILL DEVELOP THIS EVENING WITH SNOW LEVELS FALLING TO VALLEY FLOORS. OCCASIONAL MODERATE SNOW IS LIKELY TO PRODUCE ACCUMULATIONS OF 2 TO 4 INCHES WEST OF HIGHWAY 395. EAST OF HIGHWAY 395 ACCUMULATIONS UP TO AN INCH ARE POSSIBLE. THIS LIGHT TO MODERATE SNOW SHOULD TAPER TO LIGHT SNOW SHOWERS MONDAY MORNING. TRAVEL WILL BECOME HAZARDOUS LATE TONIGHT ON AREA ROADS...ESPECIALLY HIGHWAY 70 WEST OF HALLELUJAH JUNCTION AND HIGHWAYS 36 AND 44 WEST OF SUSANVILLE. A STRONGER STORM WILL MOVE ON SHORE MONDAY EVENING. AS THIS STORM MOVES ACROSS NORTHEAST CALIFORNIA SNOWFALL RATES ARE EXPECTED TO RAPIDLY INCREASE MONDAY EVENING WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY. SNOW LEVELS WILL BRIEFLY RISE TO NEAR 4500 FEET MONDAY EVENING...THEN FALL TO THE VALLEY FLOORS BY TUESDAY MORNING WITH SIGNIFICANT SNOW ACCUMULATIONS. ACCUMULATIONS OF 1 TO 2 FEET ARE POSSIBLE MAINLY WEST OF HIGHWAY 395 WITH UP TO 6 INCHES EAST OF HIGHWAY 395. IN ADDITION...GUSTY WINDS MAY CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. SNOW IS EXPECTED TO POSE AN INCONVENIENCE TO TRAVELERS TONIGHT AND MONDAY MORNING. THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS MONDAY NIGHT AND TUESDAY THAT WILL CREATE DANGEROUS WINTER DRIVING CONDITIONS. CONTINUE TO MONITOR THE LATEST FORECASTS AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO. $$ CAZ072-NVZ002-170800- /O.CON.KREV.WS.A.0013.071218T1200Z-071219T0600Z/ GREATER LAKE TAHOE AREA- INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TAHOE CITY... TRUCKEE...MARKLEEVILLE...GLENBROOK...INCLINE VILLAGE 317 PM PST SUN DEC 16 2007 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY EVENING... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY EVENING. A FAST MOVING PACIFIC STORM WILL BRUSH THE CENTRAL SIERRA LATE THIS EVENING AND OVERNIGHT. LIGHT SNOW WILL DEVELOP OVER THE AREA WITH ACCUMULATIONS EXPECTED TO REACH 2 TO 4 INCHES BY MONDAY MORNING. A STRONGER STORM WILL MOVE INTO THE CENTRAL SIERRA OVERNIGHT MONDAY. SNOWFALL RATES ARE EXPECTED TO RAPIDLY INCREASE OVERNIGHT MONDAY IN THE CENTRAL SIERRA WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY. SNOW ACCUMULATIONS OF 1 TO 2 FEET ARE POSSIBLE BY TUESDAY EVENING. IN ADDITION...GUSTY WINDS MAY CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY CREATE HAZARDOUS WINTER DRIVING CONDITIONS. CONTINUE TO MONITOR THE LATEST FORECASTS AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO. $$ HTTP://WEATHER.GOV/RENO
2 follow-up statements
000 WWUS45 KREV 170415 WSWREV URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 815 PM PST SUN DEC 16 2007 ...A SERIES OF WINTER STORMS TO AFFECT THE NORTHERN AND CENTRAL SIERRA THIS WEEK... .A FAST MOVING PACIFIC STORM WILL BRING A PERIOD OF WINTRY CONDITIONS TONIGHT WITH A STRONGER STORM SET TO AFFECT THE AREA MONDAY NIGHT AND TUESDAY. MODERATE SNOW WILL EFFECT THE NORTHERN SIERRA TONIGHT...CONDITIONS ARE FORECAST TO RAPIDLY DETERIORATE LATE MONDAY NIGHT AS WIDESPREAD HEAVY SNOW MOVES INTO THE SIERRA AND NORTHWEST NEVADA. CAZ071-171300- /O.CON.KREV.SN.Y.0021.000000T0000Z-071217T1800Z/ /O.CON.KREV.WS.A.0013.071218T0600Z-071219T0600Z/ LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- INCLUDING THE CITIES OF...PORTOLA...SUSANVILLE...WESTWOOD... SIERRAVILLE 815 PM PST SUN DEC 16 2007 ...SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY WEST OF HIGHWAY 395... ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING... A SNOW ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY. A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY EVENING. A FAST MOVING STORM WILL MOVE ACROSS NORTHEAST CALIFORNIA TONIGHT. LIGHT SNOW WILL DEVELOP THIS EVENING WITH SNOW LEVELS FALLING TO VALLEY FLOORS. MODERATE SNOW WILL PRODUCE ACCUMULATIONS OF 2 TO 6 INCHES WEST OF HIGHWAY 395. EAST OF HIGHWAY 395 ACCUMULATIONS UP TO 2 INCHES WILL OCCUR. THIS MODERATE SNOW WILL TAPER TO LIGHT SNOW SHOWERS MONDAY MORNING. TRAVEL WILL BECOME HAZARDOUS LATE TONIGHT ON AREA ROADS. A STRONGER STORM WILL MOVE ON SHORE MONDAY EVENING. AS THIS STORM MOVES ACROSS NORTHEAST CALIFORNIA SNOWFALL RATES ARE FORECAST TO RAPIDLY INCREASE MONDAY EVENING WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY. SNOW LEVELS WILL BRIEFLY RISE TO NEAR 4500 FEET MONDAY EVENING...THEN FALL TO THE VALLEY FLOORS BY TUESDAY MORNING. ACCUMULATIONS OF 1 TO 2 FEET ARE POSSIBLE WEST OF HIGHWAY 395 WITH UP TO 6 INCHES EAST OF HIGHWAY 395. GUSTY WINDS MAY CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. SNOW IS EXPECTED TO POSE AN INCONVENIENCE TO TRAVELERS TONIGHT AND MONDAY MORNING. THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS MONDAY NIGHT AND TUESDAY THAT WILL CREATE DANGEROUS WINTER DRIVING CONDITIONS. CONTINUE TO MONITOR THE LATEST FORECASTS AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO. $$ CAZ072-NVZ002-171300- /O.CON.KREV.WS.A.0013.071218T1200Z-071219T0600Z/ GREATER LAKE TAHOE AREA- INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TAHOE CITY... TRUCKEE...MARKLEEVILLE...GLENBROOK...INCLINE VILLAGE 815 PM PST SUN DEC 16 2007 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY EVENING... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY EVENING. A FAST MOVING PACIFIC STORM WILL BRUSH THE TAHOE BASIN TONIGHT. LIGHT SNOW WILL DEVELOP OVER THE AREA WITH ACCUMULATIONS OF TO 2 TO 4 INCHES BY MONDAY MORNING. A STRONGER STORM WILL MOVE INTO THE SIERRA LATE MONDAY NIGHT. SNOWFALL RATES ARE FORECAST TO RAPIDLY INCREASE OVERNIGHT MONDAY WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY. SNOW ACCUMULATIONS OF 1 TO 2 FEET ARE POSSIBLE BY TUESDAY EVENING. IN ADDITION...GUSTY WINDS MAY CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY CREATE HAZARDOUS WINTER DRIVING CONDITIONS. CONTINUE TO MONITOR THE LATEST FORECASTS AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO. $$ HTTP://WEATHER.GOV/RENO BRONG
000 WWUS45 KREV 171251 WSWREV URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 451 AM PST MON DEC 17 2007 ...THE NEXT WINTER STORM IN A PARADE OF STORMS WILL MOVE INTO THE SIERRA TONIGHT... .LIGHT TO MODERATE SNOW WILL CONTINUE TODAY IN BETWEEN STORMS WITH A STRONGER SYSTEM MOVING INTO THE SIERRA STARTING THIS EVENING. CONDITIONS WILL BRIEFLY IMPROVE OVER THE NORTHERN SIERRA TODAY...BUT WILL RAPIDLY DETERIORATE THIS EVENING AS WIDESPREAD SNOW DEVELOPS AND MOVES SOUTH OVERNIGHT. CAZ071-171900- /O.CAN.KREV.SN.Y.0021.000000T0000Z-071217T1800Z/ /O.UPG.KREV.WS.A.0013.071218T0600Z-071219T0600Z/ /O.NEW.KREV.WS.W.0006.071218T0600Z-071219T0000Z/ LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- INCLUDING THE CITIES OF...PORTOLA...SUSANVILLE...WESTWOOD... SIERRAVILLE 451 AM PST MON DEC 17 2007 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST TUESDAY... ...SNOW ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST TUESDAY. THE SNOW ADVISORY HAS BEEN CANCELLED. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. WIDESPREAD SNOW HAS TAPERED TO LIGHT SNOW SHOWERS THIS MORNING WHICH WILL CONTINUE THROUGH THE DAY. CONDITIONS WILL GENERALLY IMPROVE AFTER SUNRISE...HOWEVER TRAVEL WILL CONTINUE TO BE HAZARDOUS WHERE ROADS REMAIN SNOW COVERED OR IN HEAVIER SNOW SHOWERS. SNOWFALL RATES WILL RAPIDLY INCREASE THIS EVENING WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY. SNOW LEVELS WILL BRIEFLY RISE TO AROUND 4500 FEET OVERNIGHT...THEN FALL TO VALLEY FLOORS TUESDAY MORNING. BY TUESDAY EVENING...ACCUMULATIONS OF 12 TO 24 INCHES ARE EXPECTED WEST OF HIGHWAY 395 WITH UP TO 6 INCHES EAST OF HIGHWAY 395. IN ADDITION...GUSTS TO 50 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. DRIVERS SHOULD SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. CHECK OUR WEBSITE AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO FOR UPDATES ON THIS WINTER STORM. $$ CAZ072-NVZ002-171900- /O.UPG.KREV.WS.A.0013.071218T1200Z-071219T0600Z/ /O.NEW.KREV.WS.W.0006.071218T1200Z-071219T0600Z/ GREATER LAKE TAHOE AREA- INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TAHOE CITY... TRUCKEE...MARKLEEVILLE...GLENBROOK...INCLINE VILLAGE 451 AM PST MON DEC 17 2007 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 4 AM TO 10 PM PST TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. WIDESPREAD SNOW HAS TAPERED TO LIGHT SNOW SHOWERS THIS MORNING WHICH WILL CONTINUE THROUGH THE DAY. CONDITIONS WILL GENERALLY IMPROVE AFTER SUNRISE...HOWEVER TRAVEL WILL CONTINUE TO BE HAZARDOUS WHERE ROADS REMAIN SNOW COVERED OR IN HEAVIER SNOW SHOWERS. SNOWFALL RATES WILL RAPIDLY INCREASE OVERNIGHT TONIGHT WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY EVENING. BY LATE TUESDAY EVENING...SNOW ACCUMULATIONS OF 12 TO 24 INCHES ARE EXPECTED WITH LOCALLY HIGHER AMOUNTS. IN ADDITION...GUSTS TO 60 MPH WITH RIDGE GUSTS OF 90 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. DRIVERS SHOULD SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. CHECK OUR WEBSITE AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO FOR UPDATES ON THIS WINTER STORM. $$ CAZ073-171900- /O.NEW.KREV.WS.W.0006.071218T1200Z-071219T0600Z/ MONO- INCLUDING THE CITIES OF...BRIDGEPORT...COLEVILLE...LEE VINING... MAMMOTH LAKES 451 AM PST MON DEC 17 2007 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM 4 AM TO 10 PM PST TUESDAY. WIDESPREAD SNOW WILL MOVE INTO THE AREA OVERNIGHT TONIGHT WITH MODERATE TO HEAVY SNOW CONTINUING THROUGH TUESDAY EVENING. BY LATE TUESDAY EVENING...SNOW ACCUMULATIONS OF 12 TO 24 INCHES ARE EXPECTED. IN ADDITION...GUSTS TO 60 MPH WITH RIDGE GUSTS OF 90 MPH WILL CREATE AREAS OF BLOWING AND DRIFTING SNOW OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS. A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. DRIVERS SHOULD SLOW DOWN AND ALLOW EXTRA TIME WHEN TRAVELING. CHECK OUR WEBSITE AT WEATHER.GOV/RENO OR LISTEN TO NOAA WEATHER RADIO FOR UPDATES ON THIS WINTER STORM. $$ JORDAN HTTP://WEATHER.GOV/RENO
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 4:41 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 24 hr |
Nearby
Snow Advisories in California, 2007Every snow advisory in 2007
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.