Alert archive / California / River Flood Watches in 2012
River Flood Watch 2, NWS Reno, NV
NWS Reno, NV issued this river flood watch at Nov 29, 2012, 11:04 AM PST for Washoe County, Nevada; Nevada County, Sierra County, California. It took effect at Dec 2, 2012, 11:00 AM PST. It was in force for 22 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 29, 2012, 11:04 AM PST (19:04 UTC)
- In effect from
- Dec 2, 2012, 11:00 AM PST
- Expired
- Dec 3, 2012, 8:30 AM PST
- In force
- 22 hr
- Issued by
- NWS Reno, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Nevada County, CA, Sierra County, CA, Washoe County, NV
The radar
The Reno radar (KRGX), 61 km from the middle of the area, began a volume at 19:07 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 river
Written for the forecast point Truckee River at Farad (FARC1). The gauge peaked at 6.89 ft at Dec 2, 2012, 3:00 PM PST.
- Action stage
- 10 ft
- Minor stage
- 11 ft
- Moderate stage
- 12 ft
- Major stage
- 13 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 10346000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted, in the capitals the NWS used until 2016.
810 WGUS65 KREV 291904 FFAREV FLOOD WATCH NATIONAL WEATHER SERVICE RENO, NV 1104 AM PST THU NOV 29 2012 ...THE FLOOD WATCH CONTINUES FOR THE FOLLOWING RIVERS IN NEVADA... TRUCKEE RIVER AT VISTA AFFECTING STOREY AND WASHOE COUNTIES ...THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A FLOOD WATCH FOR THE FOLLOWING RIVERS IN CALIFORNIA...NEVADA... SUSAN RIVER AT SUSANVILLE AFFECTING LASSEN COUNTY TRUCKEE RIVER AT FARAD AFFECTING NEVADA...SIERRA AND WASHOE COUNTIES TRUCKEE RIVER AT RENO AFFECTING WASHOE COUNTY TRUCKEE RIVER NEAR TRUCKEE AFFECTING NEVADA AND PLACER COUNTIES FOR THE TRUCKEE RIVER...THE FOLLOWING LOCATIONS ARE INCLUDED... FARAD...RENO...VISTA. FOR THE TRUCKEE BASIN ABOVE FARAD...THE FOLLOWING LOCATIONS ARE INCLUDED... TRUCKEE. FOR THE SUSAN RIVER... FOR THE SUSAN RIVER...THE FOLLOWING LOCATION IS INCLUDED... SUSANVILLE. PERIODS OF HEAVY RAIN WITH HIGH SNOW LEVELS WILL IMPACT THE SIERRA AND FAR WESTERN NEVADA THROUGH SUNDAY. ONE PERIOD OF HEAVY RAIN WILL MOVE INTO THE NORTHERN SIERRA TONIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH SNOW LEVELS AT 7000 TO 7500 FEET. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE TONIGHT THROUGH FRIDAY IN THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY WITH HIGHER AMOUNTS NEAR 4 INCHES ALONG AND WEST HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS UP TO 1 INCH ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS UP TO 0.50 INCH ON VALLEY FLOORS. THIS PERIOD OF RAIN WILL HELP TO SATURATE SOIL WHICH ALLOW MORE RUN OFF TO OCCUR SATURDAY AND SUNDAY. THE SECOND PERIOD OF HEAVY RAIN WILL REACH THE AREA SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY. SNOW LEVELS WITH THE SECOND SYSTEM WILL START NEAR 7500 TO 8000 FEET AND MAY RISE AS HIGH AS 10000 FEET EARLY SUNDAY MORNING. SNOW LEVELS WILL LOWER SUNDAY, BUT MAY NOT FALL BELOW 8000 FEET UNTIL SUNDAY AFTERNOON. RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE FROM THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY...WITH HIGHER AMOUNTS UP TO 7 ALONG AND WEST OF HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS 1 TO 3 INCHES ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS OF 0.50 TO 1.50 INCHES INCH ON VALLEY FLOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THOSE LIVING NEAR CREEKS...STREAMS AND THE TRUCKEE AND SUSAN RIVERS SHOULD BEGIN TO PROTECT OR MOVE PROPERTY AWAY FROM FLOOD PRONE AREAS. HAVE A PLAN IN PLACE TO LEAVE FLOOD PRONE AREAS IF A FLOOD WARNING IS ISSUED LATER THIS WEEK. DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS AS RUSHING WATER CAN EASILY SWEEP VEHICLES AWAY OR WASH OUT ROADS AND BRIDGES. THE NEXT FORECAST UPDATE FOR THESE LOCATIONS WILL BE ISSUED AT ABOUT 12 PM NOVEMBER 30TH. && CAC057-091-NVC031-010104- /O.NEW.KREV.FL.A.0002.121202T1900Z-121203T1630Z/ /FARC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER AT FARAD * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 9:30 AM THURSDAY THE STAGE WAS 3.7 FEET. * MINOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 12.0 FEET...MODERATE FLOODING FROM BOCA TO MOGUL... ESPECIALLY TO TRAILER AND PUBLIC PARKS IN THE VERDI/MOGUL AREA. SOME DAMAGE TO ROADS...BRIDGES AND LOW LYING STRUCTURES IN THE AREA. SIMILAR IMPACTS TO THE FLOODS WHICH OCCURRED ON 2/1/1963 AND 12/23/1964 AT FARAD...AT ABOUT 12600 CFS. && LAT...LON 3939 12009 3956 12003 3952 11989 3936 12000 3936 12009 $$ NVC031-010104- /O.NEW.KREV.FL.A.0003.121202T1930Z-121203T1915Z/ /TRRN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER AT RENO * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 9:15 AM THURSDAY THE STAGE WAS 4.5 FEET. * MODERATE FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 12.0 FEET...MODERATE FLOODING FROM MOGUL TO HIGHWAY 395 395...INCLUDING DOWNTOWN RENO. RIVER BANKS OVERTOPPED A FEW INCHES IN DOWNTOWN RENO. IDLEWILD AND WINGFIELD PARKS FLOOD 2 TO 3 FEET DEEP. RIVER OAKS AND RIVER BEND TRAILER PARKS ABOVE MOGUL...AND MAYBERRY CROSSING...CRISSIE CAUGHLIN AND OXBOW PARKS WEST OF RENO ARE FLOODED. MODERATE IMPACTS TO ROADS AND BRIDGES...BUT MOST BRIDGES STILL OPEN. THE FLOW ESTIMATE IS NEAR 12700 CFS. && LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996 $$ NVC029-031-010104- /O.CON.KREV.FL.A.0001.121202T1715Z-121203T2020Z/ /VISN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER AT VISTA * FROM SUNDAY MORNING TO MONDAY AFTERNOON. * AT 9:15 AM THURSDAY THE STAGE WAS 4.4 FEET. * MAJOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 15.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 22.0 FEET...MAJOR FLOODING FROM HIGHWAY 395 AT RENO TO NIXON. SIGNIFICANT PROPERTY AND INFRASTRUCTURE DAMAGE THROUGH THE REGION. PHONE, POWER, WATER SUPPLIES BEGIN TO BE AFFECTED. SPARKS INDUSTRIAL AREA FLOODED UP TO 8 FEET DEEP. RENO AIRPORT BEGINS TO FLOOD WITH SEVERE RUNWAY PONDING DUE TO POOR DRAINAGE. MANY BRIDGES CLOSED OR FLOODED WITH SERIOUS TRANSPORTATION IMPACTS. INTERSTATE 80 AND HIGHWAY 395 ARE NOT IMPACTED. THE FLOW ESTIMATE IS NEAR 16000 CFS. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$ CAC057-061-010104- /O.NEW.KREV.FL.A.0004.121202T1138Z-121203T1045Z/ /TRCC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER NEAR TRUCKEE * FROM LATE SATURDAY NIGHT TO LATE SUNDAY NIGHT. * AT 9:30 AM THURSDAY THE STAGE WAS 1.7 FEET. * MAJOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 4.5 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY MORNING. * IMPACT...AT 10.0 FEET...MAJOR FLOODING TO HOMES AND BRIDGES ALONG TRUCKEE RIVER NEAR TRUCKEE...ABOUT 10500 CFS. $$ CAC035-010104- /O.NEW.KREV.FL.A.0005.121202T1340Z-121203T2000Z/ /SUSC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE SUSAN RIVER AT SUSANVILLE * FROM LATE SATURDAY NIGHT TO MONDAY AFTERNOON. * AT 9:00 AM THURSDAY THE STAGE WAS 5.0 FEET. * MODERATE FLOODING IS POSSIBLE. * FLOOD STAGE IS 12.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY MORNING. * IMPACT...AT 13.0 FEET...MODERATE FLOODING IN SUSANVILLE FROM LASSEN STREET DOWNSTREAM ALONG RIVERSIDE DRIVE. SOME HOMES ALONG RIVER HAVE MODERATE FLOOD AFFECTS, ESPECIALLY ON CARROLL STREET. SIGNIFICANT LOWLAND FLOODING BELOW SUSANVILLE IN JOHNSTONVILLE, LEAVITT LAKE, STANDISH, AND LITCHFIELD AREAS. RURAL ROADS AND BRIDGES IN THESE AREAS FLOOD. && LAT...LON 4044 12085 4054 12065 4036 12039 4024 12045 4042 12088
3 follow-up statements
793 WGUS65 KREV 291908 CCA FFAREV FLOOD WATCH ...CORRECTED NATIONAL WEATHER SERVICE RENO, NV 1104 AM PST THU NOV 29 2012 ...THE FLOOD WATCH CONTINUES FOR THE FOLLOWING RIVERS IN NEVADA... TRUCKEE RIVER AT VISTA AFFECTING STOREY AND WASHOE COUNTIES ...THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A FLOOD WATCH FOR THE FOLLOWING RIVERS IN CALIFORNIA...NEVADA... SUSAN RIVER AT SUSANVILLE AFFECTING LASSEN COUNTY TRUCKEE RIVER AT FARAD AFFECTING NEVADA...SIERRA AND WASHOE COUNTIES TRUCKEE RIVER AT RENO AFFECTING WASHOE COUNTY TRUCKEE RIVER NEAR TRUCKEE AFFECTING NEVADA AND PLACER COUNTIES FOR THE TRUCKEE RIVER...THE FOLLOWING LOCATIONS ARE INCLUDED... FARAD...RENO...VISTA. FOR THE TRUCKEE BASIN ABOVE FARAD...THE FOLLOWING LOCATIONS ARE INCLUDED... TRUCKEE. FOR THE SUSAN RIVER... FOR THE SUSAN RIVER...THE FOLLOWING LOCATION IS INCLUDED... SUSANVILLE. PERIODS OF HEAVY RAIN WITH HIGH SNOW LEVELS WILL IMPACT THE SIERRA AND FAR WESTERN NEVADA THROUGH SUNDAY. ONE PERIOD OF HEAVY RAIN WILL MOVE INTO THE NORTHERN SIERRA TONIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH SNOW LEVELS AT 7000 TO 7500 FEET. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE TONIGHT THROUGH FRIDAY IN THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY WITH HIGHER AMOUNTS NEAR 4 INCHES ALONG AND WEST HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS UP TO 1 INCH ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS UP TO 0.50 INCH ON VALLEY FLOORS. THIS PERIOD OF RAIN WILL HELP TO SATURATE SOIL WHICH ALLOW MORE RUN OFF TO OCCUR SATURDAY AND SUNDAY. THE SECOND PERIOD OF HEAVY RAIN WILL REACH THE AREA SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY. SNOW LEVELS WITH THE SECOND SYSTEM WILL START NEAR 7500 TO 8000 FEET AND MAY RISE AS HIGH AS 10000 FEET EARLY SUNDAY MORNING. SNOW LEVELS WILL LOWER SUNDAY, BUT MAY NOT FALL BELOW 8000 FEET UNTIL SUNDAY AFTERNOON. RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE FROM THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY...WITH HIGHER AMOUNTS UP TO 7 ALONG AND WEST OF HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS 1 TO 3 INCHES ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS OF 0.50 TO 1.50 INCHES INCH ON VALLEY FLOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THOSE LIVING NEAR CREEKS...STREAMS AND THE TRUCKEE AND SUSAN RIVERS SHOULD BEGIN TO PROTECT OR MOVE PROPERTY AWAY FROM FLOOD PRONE AREAS. HAVE A PLAN IN PLACE TO LEAVE FLOOD PRONE AREAS IF A FLOOD WARNING IS ISSUED LATER THIS WEEK. DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS AS RUSHING WATER CAN EASILY SWEEP VEHICLES AWAY OR WASH OUT ROADS AND BRIDGES. THE NEXT FORECAST UPDATE FOR THESE LOCATIONS WILL BE ISSUED AT ABOUT 12 PM NOVEMBER 30TH. && CAC057-091-NVC031-010104- /O.NEW.KREV.FL.A.0002.121202T1900Z-121203T1630Z/ /FARC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER AT FARAD * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 9:30 AM THURSDAY THE STAGE WAS 3.7 FEET. * MINOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 12.0 FEET...MODERATE FLOODING FROM BOCA TO MOGUL... ESPECIALLY TO TRAILER AND PUBLIC PARKS IN THE VERDI/MOGUL AREA. SOME DAMAGE TO ROADS...BRIDGES AND LOW LYING STRUCTURES IN THE AREA. SIMILAR IMPACTS TO THE FLOODS WHICH OCCURRED ON 2/1/1963 AND 12/23/1964 AT FARAD...AT ABOUT 12600 CFS. && LAT...LON 3939 12009 3956 12003 3952 11989 3936 12000 3936 12009 $$ NVC031-010104- /O.NEW.KREV.FL.A.0003.121202T1930Z-121203T1915Z/ /TRRN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER AT RENO * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 9:15 AM THURSDAY THE STAGE WAS 4.5 FEET. * MODERATE FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 12.0 FEET...MODERATE FLOODING FROM MOGUL TO HIGHWAY 395 395...INCLUDING DOWNTOWN RENO. RIVER BANKS OVERTOPPED A FEW INCHES IN DOWNTOWN RENO. IDLEWILD AND WINGFIELD PARKS FLOOD 2 TO 3 FEET DEEP. RIVER OAKS AND RIVER BEND TRAILER PARKS ABOVE MOGUL...AND MAYBERRY CROSSING...CRISSIE CAUGHLIN AND OXBOW PARKS WEST OF RENO ARE FLOODED. MODERATE IMPACTS TO ROADS AND BRIDGES...BUT MOST BRIDGES STILL OPEN. THE FLOW ESTIMATE IS NEAR 12700 CFS. && LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996 $$ NVC029-031-010104- /O.CON.KREV.FL.A.0001.121202T1715Z-121203T2020Z/ /VISN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER AT VISTA * FROM SUNDAY MORNING TO MONDAY AFTERNOON. * AT 9:15 AM THURSDAY THE STAGE WAS 4.4 FEET. * MAJOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 15.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 22.0 FEET...MAJOR FLOODING FROM HIGHWAY 395 AT RENO TO NIXON. SIGNIFICANT PROPERTY AND INFRASTRUCTURE DAMAGE THROUGH THE REGION. PHONE, POWER, WATER SUPPLIES BEGIN TO BE AFFECTED. SPARKS INDUSTRIAL AREA FLOODED UP TO 8 FEET DEEP. RENO AIRPORT BEGINS TO FLOOD WITH SEVERE RUNWAY PONDING DUE TO POOR DRAINAGE. MANY BRIDGES CLOSED OR FLOODED WITH SERIOUS TRANSPORTATION IMPACTS. INTERSTATE 80 AND HIGHWAY 395 ARE NOT IMPACTED. THE FLOW ESTIMATE IS NEAR 16000 CFS. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$ CAC057-061-010104- /O.NEW.KREV.FL.A.0004.121202T1138Z-121203T1045Z/ /TRCC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE TRUCKEE RIVER NEAR TRUCKEE * FROM LATE SATURDAY NIGHT TO LATE SUNDAY NIGHT. * AT 9:30 AM THURSDAY THE STAGE WAS 1.7 FEET. * MAJOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 4.5 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY MORNING. * IMPACT...AT 10.0 FEET...MAJOR FLOODING TO HOMES AND BRIDGES ALONG TRUCKEE RIVER NEAR TRUCKEE...ABOUT 10500 CFS. $$ CAC035-010104- /O.NEW.KREV.FL.A.0005.121202T1340Z-121203T2000Z/ /SUSC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1104 AM PST THU NOV 29 2012 THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WATCH FOR THE SUSAN RIVER AT SUSANVILLE * FROM LATE SATURDAY NIGHT TO MONDAY AFTERNOON. * AT 9:00 AM THURSDAY THE STAGE WAS 5.0 FEET. * MODERATE FLOODING IS POSSIBLE. * FLOOD STAGE IS 12.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY MORNING. * IMPACT...AT 13.0 FEET...MODERATE FLOODING IN SUSANVILLE FROM LASSEN STREET DOWNSTREAM ALONG RIVERSIDE DRIVE. SOME HOMES ALONG RIVER HAVE MODERATE FLOOD AFFECTS, ESPECIALLY ON CARROLL STREET. SIGNIFICANT LOWLAND FLOODING BELOW SUSANVILLE IN JOHNSTONVILLE, LEAVITT LAKE, STANDISH, AND LITCHFIELD AREAS. RURAL ROADS AND BRIDGES IN THESE AREAS FLOOD. && LAT...LON 4044 12085 4054 12065 4036 12039 4024 12045 4042 12088 $$
710 WGUS65 KREV 301202 FFAREV FLOOD WATCH NATIONAL WEATHER SERVICE RENO, NV 402 AM PST FRI NOV 30 2012 ...THE FLOOD WATCH CONTINUES FOR THE FOLLOWING RIVERS IN CALIFORNIA...NEVADA... SUSAN RIVER AT SUSANVILLE AFFECTING LASSEN COUNTY TRUCKEE RIVER NEAR TRUCKEE AFFECTING NEVADA AND PLACER COUNTIES TRUCKEE RIVER AT FARAD AFFECTING NEVADA...SIERRA AND WASHOE COUNTIES TRUCKEE RIVER AT RENO AFFECTING WASHOE COUNTY TRUCKEE RIVER AT VISTA AFFECTING STOREY AND WASHOE COUNTIES FOR THE TRUCKEE BASIN ABOVE FARAD...THE FOLLOWING LOCATIONS ARE INCLUDED...TRUCKEE. FOR THE REMAINDER OF THE TRUCKEE RIVER...THE FOLLOWING LOCATIONS ARE INCLUDED...FARAD...RENO...VISTA. FOR THE SUSAN RIVER...THE FOLLOWING LOCATIONS ARE INCLUDED...SUSANVILLE. PERIODS OF HEAVY RAIN WITH HIGH SNOW LEVELS WILL IMPACT THE SIERRA AND FAR WESTERN NEVADA THROUGH SUNDAY. ONE PERIOD OF HEAVY RAIN WILL MOVE INTO THE NORTHERN SIERRA THROUGH THIS EVENING WITH SNOW LEVELS AT 7000 TO 7500 FEET. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE THROUGH THIS AFTERNOON IN THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY WITH HIGHER AMOUNTS NEAR 4 INCHES ALONG AND WEST HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS UP TO 1 INCH ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS UP TO 0.50 INCH ON VALLEY FLOORS. THIS PERIOD OF RAIN WILL HELP TO SATURATE SOIL WHICH WILL INCREASE RUN OFF SATURDAY AND SUNDAY. THE SECOND PERIOD OF HEAVY RAIN WILL REACH THE AREA SATURDAY AFTERNOON AND CONTINUE THROUGH SUNDAY. SNOW LEVELS WITH THE SECOND SYSTEM WILL START NEAR 7500 TO 8000 FEET AND MAY RISE AS HIGH AS 10000 FEET EARLY SUNDAY MORNING. SNOW LEVELS WILL LOWER SUNDAY... BUT MAY NOT FALL BELOW 8000 FEET UNTIL SUNDAY AFTERNOON. RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE FROM THE LAKE TAHOE BASIN NORTHWARD TO WESTERN LASSEN COUNTY...WITH HIGHER AMOUNTS UP TO 7 INCHES ALONG AND WEST OF HIGHWAY 89. ACROSS WESTERN NEVADA RAINFALL AMOUNTS 1 TO 3 INCHES ARE POSSIBLE IN THE FOOTHILLS WEST OF HIGHWAY 395...WITH AMOUNTS OF 0.50 TO 1.50 INCHES INCH ON VALLEY FLOORS. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE CARS THROUGH FLOODED AREAS AS RUSHING WATER CAN EASILY SWEEP A CAR AWAY... THE NEXT FORECAST UPDATE FOR THESE LOCATIONS WILL BE ISSUED AT ABOUT 9 AM PST THIS MORNING. && CAC057-061-011802- /O.CON.KREV.FL.A.0004.121202T1200Z-121203T1045Z/ /TRCC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 402 AM PST FRI NOV 30 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER NEAR TRUCKEE * FROM LATE SATURDAY NIGHT TO LATE SUNDAY NIGHT. * AT 3:30 AM FRIDAY THE STAGE WAS 2.2 FEET. * MAJOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 4.5 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY MORNING. * IMPACT...AT 10.0 FEET...MAJOR FLOODING TO HOMES AND BRIDGES ALONG TRUCKEE RIVER NEAR TRUCKEE...ABOUT 10500 CFS. $$ CAC057-091-NVC031-011801- /O.CON.KREV.FL.A.0002.121202T1900Z-121203T1630Z/ /FARC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 402 AM PST FRI NOV 30 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER AT FARAD * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 3:30 AM FRIDAY THE STAGE WAS 3.7 FEET. * MINOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 11.0 FEET...MINOR LOWLAND FLOODING IN SOME LOCATIONS FROM BOCA TO MOGUL...ESPECIALLY IN THE VERDI/MOGUL AREA. ABOUT 10700 CFS. && LAT...LON 3939 12009 3956 12003 3952 11989 3936 12000 3936 12009 $$ NVC031-011801- /O.CON.KREV.FL.A.0003.121202T1930Z-121203T1915Z/ /TRRN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 402 AM PST FRI NOV 30 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER AT RENO * FROM SUNDAY MORNING TO MONDAY MORNING. * AT 3:15 AM FRIDAY THE STAGE WAS 4.4 FEET. * MINOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 11.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 11.0 FEET...NEAR BANKFULL FROM MOGUL TO U.S. HWY 395...INCLUDING DOWNTOWN RENO. SOME MINOR FLOODING OF LOWLANDS...PARKS AND TRAILS ALONG RIVER. IN DOWNTOWN RENO... WINGFIELD PARK BEGINS TO FLOOD AND WATER BEGINS TO GO OVER ARLINGTON STREET BRIDGE. NEAR 10100 CFS. && LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996 $$ NVC029-031-011801- /O.CON.KREV.FL.A.0001.121202T2030Z-121203T2020Z/ /VISN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 402 AM PST FRI NOV 30 2012 THE FLOOD WATCH CONTINUES FOR THE TRUCKEE RIVER AT VISTA * FROM SUNDAY AFTERNOON TO MONDAY AFTERNOON. * AT 3:15 AM FRIDAY THE STAGE WAS 4.3 FEET. * MODERATE FLOODING IS POSSIBLE. * FLOOD STAGE IS 15.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY EARLY SUNDAY AFTERNOON. * IMPACT...AT 19.0 FEET...MODERATE FLOODING U.S. HIGHWAY 395 AT RENO TO NIXON, INCLUDING TRUCKEE MEADOWS AND SPARKS. SERIOUS LOWLAND FLOODING VISTA TO NIXON. TRANSPORTATION BEGINS TO BE AFFECTED IN EASTERN TRUCKEE MEADOWS, GREG STREET SOUTH TO MILL STREET FLOODED FROM GRAND SIERRA EAST TO MCCARRAN. BELOW MCCARRAN, GLENDALE AVENUE TO PEMBROKE DRIVE FLOODED. GRAND SIERRA RV PARK FLOODED. SPARKS INDUSTRIAL AREA UNDER ABOUT 4 FEET OF WATER, SOME BUILDINGS FLOOD. ABOUT 12000 CFS. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$ CAC035-011801- /O.CON.KREV.FL.A.0005.121202T1720Z-121203T2000Z/ /SUSC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 402 AM PST FRI NOV 30 2012 THE FLOOD WATCH CONTINUES FOR THE SUSAN RIVER AT SUSANVILLE * FROM SUNDAY MORNING TO MONDAY AFTERNOON. * AT 3:00 AM FRIDAY THE STAGE WAS 5.8 FEET. * MINOR FLOODING IS POSSIBLE. * FLOOD STAGE IS 12.0 FEET. * FORECAST...FLOOD STAGE MAY BE REACHED BY LATE SUNDAY MORNING. * IMPACT...AT 12.0 FEET...SEVERAL HOMES ON CARROLL STREET IN SUSANVILLE BEGIN TO FLOOD. LOCAL FLOODING IN SUSANVILLE FROM LASSEN STREET DOWNSTREAM ALONG RIVERSIDE DRIVE, ESPECIALLY BELOW PIUTE CREEK WHICH ENTERS RIVER NEAR ALEXANDER DRIVE. MODERATE LOWLAND FLOODING BELOW SUSANVILLE IN JOHNSTONVILLE, LEAVITT LAKE, STANDISH, AND LITCHFIELD AREAS. SOME RURAL ROADS AFFECTED BY FLOODING. && LAT...LON 4044 12085 4054 12065 4036 12039 4024 12045 4042 12088 $$
683 WGUS65 KREV 301829 FFAREV FLOOD WATCH NATIONAL WEATHER SERVICE RENO, NV 1029 AM PST FRI NOV 30 2012 ...THE FLOOD WATCH HAS BEEN UPGRADED TO A FLOOD WARNING FOR THE FOLLOWING RIVERS IN CALIFORNIA AND NEVADA... SUSAN RIVER AT SUSANVILLE AFFECTING LASSEN COUNTY TRUCKEE RIVER AT RENO AFFECTING WASHOE COUNTY TRUCKEE RIVER AT VISTA AFFECTING STOREY AND WASHOE COUNTIES TRUCKEE RIVER NEAR TRUCKEE AFFECTING NEVADA AND PLACER COUNTIES PLEASE REFER TO THE LATEST RIVER FLOOD WARNING FOR DETAILS ON THE TRUCKEE AND SUSAN RIVERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE CARS THROUGH FLOODED AREAS AS RUSHING WATER CAN EASILY SWEEP A CAR AWAY. && CAC057-061-301859- /O.CAN.KREV.FL.A.0004.121202T1209Z-121203T1045Z/ /TRCC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1029 AM PST FRI NOV 30 2012 THE FLOOD WATCH IS CANCELLED FOR THE TRUCKEE RIVER NEAR TRUCKEE * AT 9:30 AM FRIDAY THE STAGE WAS 2.9 FEET. * FORECAST...THE RIVER IS FORECAST TO REACH A MAXIMUM STAGE OF 8.2 FEET BY LATE SUNDAY MORNING. $$ CAC035-301859- /O.CAN.KREV.FL.A.0005.121202T1515Z-121203T2000Z/ /SUSC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1029 AM PST FRI NOV 30 2012 THE FLOOD WATCH IS CANCELLED FOR THE SUSAN RIVER AT SUSANVILLE * AT 10:00 AM FRIDAY THE STAGE WAS 8.6 FEET. * FORECAST...THE RIVER IS FORECAST TO REACH A MAXIMUM STAGE OF 13.0 FEET BY LATE SUNDAY MORNING. && LAT...LON 4044 12085 4054 12065 4036 12039 4024 12045 4042 12088 $$ CAC057-091-NVC031-301859- /O.CAN.KREV.FL.A.0002.000000T0000Z-121203T1630Z/ /FARC1.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1029 AM PST FRI NOV 30 2012 THE FLOOD WATCH IS CANCELLED FOR THE TRUCKEE RIVER AT FARAD * AT 9:30 AM FRIDAY THE STAGE WAS 4.1 FEET. * FORECAST...THE RIVER IS FORECAST TO REACH A MAXIMUM STAGE OF 10.5 FEET BY EARLY SUNDAY AFTERNOON. && LAT...LON 3939 12009 3956 12003 3952 11989 3936 12000 3936 12009 $$ NVC031-301859- /O.CAN.KREV.FL.A.0003.121202T2300Z-121203T1915Z/ /TRRN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1029 AM PST FRI NOV 30 2012 THE FLOOD WATCH IS CANCELLED FOR THE TRUCKEE RIVER AT RENO * AT 10:15 AM FRIDAY THE STAGE WAS 5.0 FEET. * FORECAST...THE RIVER IS FORECAST TO REACH A MAXIMUM STAGE OF 11.0 FEET BY SUNDAY AFTERNOON. && LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996 $$ NVC029-031-301859- /O.CAN.KREV.FL.A.0001.121202T2042Z-121203T2020Z/ /VISN2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1029 AM PST FRI NOV 30 2012 THE FLOOD WATCH IS CANCELLED FOR THE TRUCKEE RIVER AT VISTA * AT 10:15 AM FRIDAY THE STAGE WAS 5.1 FEET. * FORECAST...THE RIVER IS FORECAST TO REACH A MAXIMUM STAGE OF 19.3 FEET BY SUNDAY EVENING. && LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976 $$
What forecasters said that day
The local office's own words before this river flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Reno, NV wrote its last area forecast discussion before this river flood watch went out at Nov 29, 8:32 AM PST, 2 hours 32 minutes earlier.
Area forecast discussion, Nov 29, 8:32 AM PST, 2 hours 32 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
832 AM PST THU NOV 29 2012
.UPDATE...
BUMPED UP THE START TIME OF THE WIND ADVISORIES AND HIGH WIND
WARNINGS SO THAT THEY ARE IN EFFECT STARTING THIS MORNING. WINDS
HAVE PICKED UP ALONG THE RIDGES AND IN SOME FOOTHILL LOCATIONS
WITH GUSTS UP TO 50 MPH THIS MORNING. WINDS ALONG THE HIGHWAY 295
CORRIDOR WILL BE VERY STRONG WITH GUSTS UP TO 70 MPH. GUSTS ARE
ARE EXPECTED TO EXCEED 80 MPH IN WIND PRONE LOCATIONS, WITH
CLOSURES LIKELY ALONG THE HIGHWAY 395/580 CORRIDOR. EKL
&&
.PREVIOUS DISCUSSION... /ISSUED 330 AM PST THU NOV 29 2012/
SHORT TERM...
..MAJOR STORMS TO AFFECT THE REGION THROUGH THE WEEKEND...
A SERIES OF POWERFUL, WET STORM SYSTEMS ARE SET TO SLAM INTO
NORTHERN CA/NV OVER THE NEXT SEVERAL DAYS, ASSOCIATED WITH A PLUME
OF DEEP SUBTROPICAL MOISTURE IN THE PACIFIC. THIS "ATMOSPHERIC
RIVER" WILL ACT MUCH LIKE A FIRE HOSE POINTED AT THE WEST COAST,
SPREADING HEAVY PRECIPITATION UP AND DOWN THE SIERRA AND WESTERN
NEVADA. THIS WILL BRING RISES IN OUR AREA RIVERS AND STREAMS, ALONG
WITH POTENTIAL FLOODING BY THE WEEKEND. IN ADDITION TO THE HEAVY
PRECIPITATION, PERIODS OF HIGH WINDS AND HIGH ELEVATION SNOW WILL
ALSO OCCUR. FORECASTER CONFIDENCE REMAINS HIGH WITH RESPECT TO THIS
MAJOR STORM.
THE NEXT STORM IN THE SERIES WILL MOVE INTO THE REGION THIS
AFTERNOON AND TONIGHT, INCREASING WINDS ALOFT AND SPREADING
PRECIPITATION INTO THE SIERRA. VALLEY WINDS INCREASE TONIGHT AND
INTO FRIDAY MORNING AS 700MB FLOW REACHES 60-70KT. THE STRONGEST
WINDS WILL AFFECT THE HIGHWAY 395 CORRIDOR FROM RENO TO MAMMOTH
LAKES, ESPECIALLY FRIDAY MORNING AS DOWNSLOPE WIND GUSTS REACH UP TO
70 MPH AT TIMES. WIND PRONE AREAS COULD REACH UP TO 80 MPH.
THESE WINDS MAY BE DAMAGING AT THESE SPEEDS, WITH EXTREME CROSSWINDS
ACROSS NORTH-SOUTH HIGHWAYS SUCH AS HWY 395/I-580. PEAK WIND GUSTS
WILL BE FRIDAY MORNING, AHEAD OF THE MAIN PRECIPITATION. AS THE
PRECIP BEGINS TO MOVE INTO THE SIERRA AND WESTERN NEVADA, THIS WILL
HELP DAMPEN THE WINDS SOMEWHAT. BLOWING DUST WILL ALSO BE A CONCERN
FOR AREAS EAST OF RENO-CARSON CITY.
BY THURSDAY NIGHT, THE MAIN PRECIP WILL BEGIN TO MOVE INTO THE
NORTHERN SIERRA, SPREADING INTO THE TAHOE BASIN AND EVENTUALLY SOUTH
INTO MONO COUNTY BY FRIDAY AFTERNOON. HYDROLOGIC CONCERNS ARE
ADDRESSED BELOW IN THE HYDROLOGY SECTION, PLEASE SEE FOR ADDITIONAL
DETAILS WITH RAINFALL AMOUNTS AND FLOODING CONCERNS.
WINTER WEATHER ADVISORIES HAVE BEEN ISSUED FOR THE LAKE TAHOE BASIN
ABOVE 7000 FEET AND MONO COUNTY FOR ELEVATIONS ABOVE 7500 FEET AS
WELL. SNOW LEVELS WILL REMAIN ELEVATED, GENERALLY ABOVE 7000-7500
FEET THURSDAY NIGHT AND FRIDAY DURING THE HEAVIEST PRECIP. DURING
THIS TIME, WE EXPECT 1-3" OF LIQUID IN THE TAHOE BASIN, WITH EVEN
HIGHER AMOUNTS OVER 3" ALONG THE SIERRA CREST. THIS WILL MEAN
ELEVATIONS ABOVE 7000-7500 FEET WILL SEE MULTIPLE FEET OF HEAVY WET
SNOW THROUGH FRIDAY. FOR THE LAKE TAHOE BASIN, WE EXPECT SNOW
AMOUNTS GENERALLY 8-16" BETWEEN 7000-8000 FEET, BUT ELEVATIONS ABOVE
8000 FEET WILL SEE 2-3 FEET OF SIERRA CEMENT THROUGH FRIDAY
AFTERNOON. FURTHER SOUTH INTO MONO COUNTY, 6-12" OF SNOW IS
EXPECTED ABOVE 7500 FEET, MAINLY WEST OF HIGHWAY 395 INCLUDING
MAMMOTH LAKES.
AS FOR RAINFALL IN THE LOWER ELEVATIONS, WE COULD SEE UP TO 0.5" OF
RAINFALL IN WESTERN NEVADA FRIDAY AS WE START TO GET GOOD SPILLOVER
INTO THE LEE OF THE SIERRA. BY FRIDAY EVENING, THIS ROUND BEGINS TO
WIND DOWN, WITH PRECIP BECOMING LIGHTER AND SHOWERY FRIDAY NIGHT
INTO SATURDAY. UPSLOPE FLOW INTO THE SIERRA WILL KEEP AT LIGHT
RAIN/SNOW IN THE SIERRA THROUGH SATURDAY BEFORE THE NEXT WAVE MOVES
INTO THE REGION SATURDAY NIGHT. HOON
LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...
MODELS REMAIN IN VERY GOOD AGREEMENT WITH THE STRONGEST STORM TO
IMPACT THE SIERRA AND WESTERN NEVADA SATURDAY NIGHT INTO SUNDAY.
HIGH CONFIDENCE REMAINS IN A HEAVY RAIN EVENT WITH HIGH SNOW LEVELS
WITH THIS STORM. BRUNT OF THE STORM WILL AFFECT THE AREA FROM 06-21Z
SUNDAY.
SNOW LEVELS WILL RISE ABOVE 8000 FEET BY SATURDAY EVENING AND HOVER
NEAR 9000-9500 FEET THROUGH SUNDAY MORNING. THEY WILL THEN CRASH
BEHIND THE COLD FRONT SUNDAY AFTERNOON, BUT THIS WILL BE AS THE
PRECIP ENDS. MAIN CONCERN WITH THIS EVENT CONTINUES TO BE RAIN WITH
SNOW CONFINED TO THE HIGHEST ELEVATIONS. SOME SNOW MAY FALL BEHIND
THE FRONT, BUT AMOUNTS WOULD BE A FEW INCHES OR LESS BELOW 8500
FEET.
STRONG WINDS, LIFT AND ABUNDANT MOISTURE WILL MOVE IN BY 06Z SUNDAY
INTO THE SIERRA WITH HEAVY RAINS. THE STRONG LIFT, MOISTURE AND A
WEAKLY UNSTABLE ATMOSPHERE WILL PROMOTE EXCELLENT SPILLOVER INTO
WESTERN NEVADA WITH HEAVY RAINS EVEN EXTENDING EAST OF THE HWY 395
CORRIDOR AT TIMES. HEAVIEST RAINS EXPECTED NEAR AND NORTH OF HWY 50,
BUT THERE WILL STILL BE HEAVY AMOUNTS FURTHER SOUTH INTO MONO
COUNTY. PLEASE REFER TO THE HYDROLOGY DISCUSSION BELOW FOR QPF
AMOUNTS AS WELL AS THE YOU-TUBE BRIEFING AND FLOOD WATCHES FOR MORE
INFORMATION.
IN ADDITION TO ALL THE RAINFALL, WINDS WILL REMAIN STRONG WITH
STRONG GRADIENTS AT THE SURFACE AND ALOFT. WIDESPREAD WIND GUSTS TO
45 KTS ARE LIKELY WITH LOCALLY HIGHER GUSTS. WITH SATURATED SOILS,
DOWNED TREES MAY BECOME ANOTHER ISSUE TO DEAL WITH BY SUNDAY MORNING
(SIMILAR TO WHAT OCCURRED AFTER THE RAIN IN THE 2005 FLOOD). WINDS
AT 700 MB ARE 80+ KTS SUNDAY MORNING WHICH WOULD RESULT IN WIND
GUSTS OVER 150 MPH FOR THE SIERRA CREST!
WEAK RIDGING WILL BUILD IN MONDAY AND TUESDAY WITH LIGHTER WINDS
ALONG WITH COOLER TEMPERATURES AND DRY CONDITIONS. MODELS KEEP THE
BRUNT OF THE NEXT WARM STORM TO THE NORTH, BUT DO SAG IT FAR ENOUGH
SOUTH BY WEDNESDAY FOR ANOTHER ROUND OF RAINFALL WITH NIGH SNOW
LEVELS ABOVE 7500 FEET. HOWEVER, AMOUNTS WITH THAT EVENT LOOK MUCH
LIGHTER AT THIS TIME. ONE WORD OF CAUTION, 06Z GFS CAME IN MUCH
WETTER FOR LASSEN COUNTY SO THIS WILL CONTINUE TO BE MONITORED.
WALLMANN
AVIATION...
SCT SHOWERS WILL CONTINUE IN THE SIERRA WITH OCNL MVFR CONDS IN -RA.
WINDS WILL REMAIN BREEZY WITH S-SW WINDS GUSTING TO 35-40 KTS IN THE
SIERRA TO EXTREME WESTERN NV. WITH SIERRA RIDGE WINDS NEAR 60 KTS,
SOME MTN WAVE TURBULENCE AND LLVL WIND SHEAR ESPECIALLY FOR
KTRK/KTVL.
TONIGHT, STRONGEST WINDS ARRIVE WITH PK WING GUSTS TO 45 KTS AROUND
KTVL/KTRK AND 50-55KTS FOR KRNO. STILL EXPECT STRONG SW WINDS ON
RIDGES SO MTN WAVE TURBULENCE WILL CONTINUE AND POSSIBLY BE STRONGER
WITH LLWS NEAR AND JUST EAST OF THE SIERRA. RAIN WILL ALSO INCREASE
ACROSS THE TAHOE BASIN WITH MVFR-IFR CONDS NEAR AIRPORT MINS. SCT
SHOWERS WITH 30-40PCT CHC OF MVFR CONDS AT KRNO/KMMH THRU 12Z
TONIGHT.
STRONG WINDS CONTINUE INTO FRIDAY WITH MORE WIDESPREAD MVFR/IFR
CONDS IN RAIN. A BREAK IN PRECIP FOR WRN NV FRI NIGHT INTO SATURDAY
BUT GUSTY WINDS WILL CONTINUE. STRONGEST STORM STILL ON TRACK FOR
SAT NIGHT/SUNDAY WITH VERY STRONG WINDS AND HEAVY RAIN WITH
WIDESPREAD IFR CONDS LIKELY, EVEN INTO WRN NV SUNDAY MORNING.
WALLMANN
HYDROLOGY...
THURSDAY NIGHT INTO FRIDAY, WE EXPECT THE FIRST ROUND OF HEAVY
PRECIPITATION INTO THE SIERRA WITH SNOW LEVELS GENERALLY BETWEEN
7000-7500 FEET. AS FOR PRECIPITATION AMOUNTS, WE EXPECT TO SEE A
BURST OF HEAVY PRECIP FRIDAY, WITH PRECIP AMOUNTS OVER 3 INCHES
ALONG THE SIERRA CREST. FOR THE LAKE TAHOE BASIN AND LASSEN COUNTY,
WE WILL SEE 1-3 INCHES OF RAINFALL, WHICH COULD LEAD TO MINOR
FLOODING OF SMALL CREEKS AND STREAMS IN THE EASTERN SIERRA. THIS
FIRST STORM WILL SERVE TO MOISTEN UP THE THE SOILS AND PRIME IT
BEFORE THE NEXT BIG STORM ON SATURDAY NIGHT/SUNDAY.
STRONGEST STORM OF THE SERIES STILL ON TRACK FOR SATURDAY
NIGHT/SUNDAY. ABUNDANT MOISTURE WITH STRONG FORCING WILL MAKE THIS
AN EXCELLENT SPILLOVER EVENT. GFS IS EXTREMELY WET AND MAY BE TOO
WET. HOWEVER, USING IT WITH A BLEND TO THE NAM AND EC, STILL EXPECT
6+ INCHES NEAR THE SIERRA CREST IN THE 24 HOUR PERIOD 00Z SUN TO 00Z
MON. TAHOE BASIN TO WESTERN LASSEN LOOKING LIKE 3-5 INCHES WITH ONLY
SLIGHTLY LIGHTER AMOUNTS INTO THE WESTERN NEVADA FOOTHILLS. WITH
SUCH A STRONG SPILLOVER SIGNATURE, EVEN THE 395 CORRIDOR LIKELY TO
SEE 1-2 INCHES ON THE VALLEY FLOOR WITH LIGHTER AMOUNTS OF 1/4 TO
1/2 INCH OUT TO THE BASIN AND RANGE.
SMALL STREAM AND URBAN FLOODING ISSUES ARE LIKELY GIVEN THE HEAVY
RAINFALL FALLING ON SATURATED SOILS FROM YESTERDAYS AND FRIDAYS
STORMS. MAINSTEM RIVERS ARE A BIT MORE DIFFICULT, ESPECIALLY THE
SUSAN WHICH WE HAVE A BIT MORE DIFFICULT TIME FORECASTING QPF FOR.
RIGHT NOW, LATEST INFORMATION WOULD PUT THE SUSAN RIVER JUST BELOW
FLOOD STAGE SUNDAY MORNING. AS FOR THE TRUCKEE, VISTA IS FORECAST TO
HAVE MINOR FLOODING AT THIS TIME, WITH SOME ISSUES POSSIBLE NEAR
TRUCKEE, CA AS WELL. THAT DRAINAGE IS MORE SENSITIVE TO SNOW
LEVELS, BUT IT APPEARS THAT SNOW LEVELS WILL REMAIN HIGH ENOUGH
DURING THE EVENT. DAY SHIFT WILL BE EVALUATING THE TRUCKEE AND SUSAN
RIVERS MORE CLOSELY.
CONTINUING WITH RIVER FLOOD WATCH FOR THE TRUCKEE AT VISTA (SPARKS)
WITH MINOR FLOODING POSSIBLE THERE. WILL ALSO CONTINUE THE AREAL
FLOOD WATCH FOR ALL THE SMALLER STREAMS IN THE SIERRA FROM
BRIDGEPORT, CA NORTH TO LASSEN COUNTY AND INTO EXTREME WESTERN
NEVADA. STILL SOME UNCERTAINTIES WITH QPF AMOUNTS AND SNOW LEVELS,
BUT CONFIDENCE IS HIGHER, ESPECIALLY WITH RESPECT TO SNOW LEVEL THAN
12-24 HOURS AGO. WALLMANN/HOON
&&
.REV WATCHES/WARNINGS/ADVISORIES...
NV...WIND ADVISORY UNTIL 4 PM PST FRIDAY NVZ005.
HIGH WIND WARNING UNTIL 4 PM PST FRIDAY NVZ003.
FLOOD WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY MORNING
NVZ002-003.
WINTER WEATHER ADVISORY FROM 10 PM THIS EVENING TO 4 PM PST
FRIDAY ABOVE 7000 FEET FOR NVZ002.
WIND ADVISORY UNTIL 4 PM PST FRIDAY NVZ002.
WIND ADVISORY UNTIL 7 PM PST FRIDAY NVZ001-004.
CA...FLOOD WATCH FROM SATURDAY MORNING THROUGH SUNDAY MORNING CAZ071.
WIND ADVISORY UNTIL 4 PM PST FRIDAY CAZ070-071.
HIGH WIND WARNING UNTIL 4 PM PST FRIDAY CAZ073.
FLOOD WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY AFTERNOON
CAZ073.
WINTER WEATHER ADVISORY FROM 4 AM TO 4 PM PST FRIDAY ABOVE 7500
FEET FOR CAZ073.
FLOOD WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY MORNING
CAZ072.
WINTER WEATHER ADVISORY FROM 10 PM THIS EVENING TO 4 PM PST
FRIDAY ABOVE 7000 FEET FOR CAZ072.
WIND ADVISORY UNTIL 4 PM PST FRIDAY CAZ072.
&&
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/RENO (ALL LOWER CASE)Hazardous weather outlook, Nov 29, 5:57 AM PST, 5 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 557 AM PST THU NOV 29 2012 CAZ070>073-NVZ001>005-301400- SURPRISE VALLEY CALIFORNIA-LASSEN-EASTERN PLUMAS- EASTERN SIERRA COUNTIES-GREATER LAKE TAHOE AREA-MONO- MINERAL AND SOUTHERN LYON COUNTIES-GREATER RENO-CARSON CITY- MINDEN AREA-WESTERN NEVADA BASIN AND RANGE INCLUDING PYRAMID LAKE- NORTHERN WASHOE COUNTY- 557 AM PST THU NOV 29 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EASTERN SIERRA... NORTHEAST CALIFORNIA AND WESTERN NEVADA. .DAY ONE...TODAY AND TONIGHT A POWERFUL WINTER STORM WILL MOVE INTO THE REGION TODAY AND TONIGHT...BRINGING HEAVY PRECIPITATION AND HEAVY WET SNOW TO THE HIGH SIERRA...AND STRONG WINDS TO WESTERN NEVADA. PLEASE REFER TO THE WINTER WEATHER ADVISORY FOR ADDITIONAL INFORMATION ON SNOW ACCUMULATIONS IN THE SIERRA...AND TO THE HIGH WIND WARNING AND WIND ADVISORIES FOR ADDITIONAL INFORMATION ON THE STRONG WINDS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY VERY HEAVY PRECIPITATION AND STRONG WINDS WILL CONTINUE FRIDAY THROUGH SUNDAY. MINOR TO MODERATE FLOODING IS POSSIBLE SUNDAY THROUGH TUESDAY ON AREA RIVERS DUE TO THE VERY HEAVY RAINFALL EXPECTED OVER THE WEEKEND. ANOTHER...WEAKER...SYSTEM WILL MOVE INTO THE REGION BY WEDNESDAY BRINGING ANOTHER CHANCE OF PRECIPITATION. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. HOWEVER ...WEATHER SPOTTERS ARE REQUESTED TO REPORT SNOWFALL... PRECIPITATION...WIND AND ANY FLOODING FROM TODAY THROUGH MONDAY. O'HARA FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT... HTTP://FORECAST.WEATHER.GOV/HAZARDS/REV (ALL LOWER CASE)
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 29, 3:59 AM PST | Winter Weather Advisory | REV | Douglas, Washoe | 36 hr |
| Nov 29, 4:03 AM PST | Lake Wind Advisory | REV | Douglas, Washoe | 5 hr |
| Nov 29, 11:04 AM PST | River Flood Watch | REV | Washoe | 4 days |
| Nov 29, 11:04 AM PST | River Flood Watch | REV | Nevada, Placer | 23 hr |
| Nov 29, 11:04 AM PST | River Flood Watch | REV | Lassen | 4 days |
Nearby
River Flood Watches in California, 2012River Flood Watches in Nevada, 2012Every river flood watch in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.