WEST WALKER RIVER NEAR COLEVILLE AFFECTING MONO COUNTY FOR THE WEST WALKER ABOVE TOPAZ LAKE... INCLUDING WALKER... COLEVILLE AND TOPAZ CALIFORNIA...MINOR TO MODERATE FLOODING IS FORECAST. WARM WEATHER...WHICH IS EXPECTED TO CONTINUE THROUGH THIS WEEK...WILL INCREASE MELT OF THE LARGE SNOWPACK IN THE UPPER PORTIONS OF THE WALKER RIVER BASIN IN THE EASTERN SIERRA. THIS WILL RESULT IN HIGH FLOWS ON THE WEST WALKER RIVER ABOVE TOPAZ RESERVOIR. FLOODING OF LOWLANDS... PASTURE AND RURAL ROADS IS EXPECTED TO BEGIN IN THE ANTELOPE VALLEY-WALKER- COLEVILLE CALIFORNIA AREA LATE WEDNESDAY EVENING. FLOWS ON THE WEST WALKER ABOVE TOPAZ VARY DURING THE DAY DUE TO THE DIURNAL NATURE OF SNOWMELT. HIGHEST FLOWS... AND GREATEST DEGREE OF FLOODING... OCCUR IN THE ANTELOPE VALLEY DURING THE LATE NIGHT AND EARLY MORNING HOURS. LOWEST FLOWS OCCUR DURING THE MID AFTERNOON. THE HIGHEST FLOWS OF THE MELT SEASON ON THE WEST WALKER ARE EXPECTED BETWEEN THURSDAY JUNE 16TH AND SUNDAY JUNE 19TH. PEOPLE LIVING OR RECREATING ON THE WEST WALKER RIVER AND ITS TRIBUTARIES IN THE EASTERN SIERRA SHOULD TAKE CARE IN AND NEAR THE WATER.THIS IS ESPECIALLY IMPORTANT DURING THE SPRING SNOW MELT SEASON... WHEN WATER TEMPERATURES ARE VERY COLD AND WATER CAN BE FAST FLOWING AND DEEP. KEEP INFORMED OF THE CURRENT FLOOD SITUATION BY MONITORING NATIONAL WEATHER SERVICE FLOOD WATCHES...WARNINGS AND STATEMENTS AT HTTP://WEATHER.GOV/RENO THE NEXT FORECAST UPDATE FOR THESE LOCATIONS WILL BE ISSUED WEDNESDAY MORNING JUNE 15TH. && THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A * FLOOD WARNING FOR THE WEST WALKER RIVER NEAR COLEVILLE. * FROM WEDNESDAY EVENING TO SUNDAY AFTERNOON... OR UNTIL THE WARNING IS CANCELLED. * AT10:30 AM TUESDAY THE STAGE WAS 5.0 FEET. * FLOOD STAGE IS 6.0 FEET. * MINOR FLOODING IS FORECAST... WITH A RISE TO NEAR 6.5 FEET EXPECTED THURSDAY MORNING. * IMPACT... AT 6.5 FEET... MODERATE FLOODING OF LOWLANDS... PASTURES AND SOME RURAL ROADS ALONG RIVER FROM WALKER TO TOPAZ LAKE... INCLUDING WALKER/COLEVILLE/TOPAZ CALIFORNIA. APPROXIMATELY 3800 CFS WITH A 1 IN 10 CHANCE OF OCCURRING ANY GIVEN YEAR. * FLOOD HISTORY... THIS CREST COMPARES TO A PREVIOUS CREST OF 6.6 FEET ON JUNE 7 2010.
Instruction:
SPRING SNOWMELT WILL CAUSE THE WEST WALKER RIVER ABOVE TOPAZ LAKE TO RISE SIGNIFICANTLY THROUGH THIS WEEK...WITH MINOR TO MODERATE FLOODING EXPECTED.
Area: /WWBC1.1.SM.110616T0430Z.110616T1000Z.000000T0000Z.NO/
Affected Counties or parts of: Modoc, Plumas, Placer, Mono, Lassen, El Dorado, Nevada, Sierra, Alpine
Sent: 2011-06-14T11:11:22-07:00
Original Sender: KREV@nwws.oes.ca.gov
From: NATIONAL WEATHER SERVICE RENO, NV
__._,_.___
No comments:
Post a Comment