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Nevada, Greater Reno-Carson City-Minden Area

Flood Warning, Areal Flood Warning

Statement as of 10:33 AM PDT on May 22, 2017

Expires 4:30 PM EDT on May 26, 2017


The Flood Warning continues for
the Walker River near Mason.
* From Wednesday morning until further notice.
* At 10:15 am Monday the stage was 9.3 feet.
* Flood stage is 9.8 feet.
* Minor flooding is forecast.
* Forecast... rise above flood stage by late Wednesday morning and
continue to rise to near 10.8 feet by Friday afternoon.
* Impact... at 10.8 feet... minor flooding of lowlands... pasture and
farmland adjacent to the river throughout the Mason
Valley-Yerington area. Some rural roads flood. Preventative
sandbagging of low structures in Mason and Yerington may be
necessary as river rises... but little flooding occurs. Some minor
flooding of basements and yards in Mason.


Lat... Lon 3881 11920 3917 11927 3919 11898 3912 11890 3885 11908






1211 PM PDT sun may 21 2017

... A Flood Warning for snowmelt remains in effect until 130 PM PDT
Friday for northern Mono... Douglas and southern Lyon counties...

* flood impacts will start late Tuesday and last through the week.

* Warming temperatures will produce increased snowmelt runoff and
much high flows in area streams and rivers through late next week.
These increased flows will produce minor to moderate flooding
along both the west and east Walker rivers. The highest flows are
likely in the evening and overnight on the west Walker River.

* Flooding of campgrounds is likely through the west Walker River
canyon. Flooding of agricultural areas in Antelope Valley and
Smith Valley along the west Walker River is likely along with very
high water through Wilson Canyon.

* Along the east Walker River minor to moderate flooding is possible
from above strosnider ditch to the confluence with the west Walker
River.


Precautionary/preparedness actions...

A Flood Warning means that flooding is imminent or occurring. All
interested parties should take necessary precautions immediately.


Lat... Lon 3889 11912 3881 11903 3872 11896 3862 11896
      3863 11899 3869 11901 3875 11904 3881 11908
      3885 11913 3881 11917 3879 11923 3881 11928
      3880 11932 3876 11935 3870 11944 3864 11947
      3856 11946 3849 11944 3837 11943 3838 11948
      3850 11948 3866 11952 3875 11943 3883 11936
      3886 11928 3882 11922 3886 11919




Areal Flood Watch, Areal Flood Advisory

Statement as of 2:39 PM PDT on May 21, 2017

Expires 4:45 PM EDT on May 25, 2017


... Flood Watch now in effect through Wednesday evening...

The Flood Watch is now in effect for

* portions of California and western Nevada, including the
following areas, in California, greater Lake Tahoe area,
Lassen-eastern Plumas-eastern Sierra counties, and Mono
County. In western Nevada, greater Lake Tahoe area and greater
Reno-Carson City-Minden area.

* Through Wednesday evening

* warming temperatures will accelerate snowpack melt across the
eastern Sierra through early week. Best estimates for flows this
week coming out of unregulated eastern Sierra creeks and streams
are likely to be 2-2.5 times current flows with smaller creeks
likely to see 3 times current flows.

* Daily peak flows on small creeks and streams typically occur
during the evening and overnight hours.

* Creeks and streams will run fast and very cold, bringing the
risk of hypothermia for those without protective gear. Flood
water will likely inundate pasture land, some campgrounds,
cover hiking and biking trails and roads leading into the high
country.

Precautionary/preparedness actions...

Excessive runoff may also generate rock and mud slides in steep
terrain. Persons living along small creeks and streams should
monitor the latest weather information at weather.Gov/Reno and be
prepared to take action should flooding occur.





1208 PM PDT sun may 21 2017

... The flood advisory for snowmelt remains in effect until 145 PM PDT
Thursday for alpine and Douglas counties...

* minor flooding impacts will begin in parts of the Carson Valley
late Tuesday and continue through Thursday.

* Warming temperatures will cause increased snowmelt this week. This
increased snowmelt will raise flows in both the East Fork Carson
and West Fork Carson rivers.

* The increased flows will result in minor flooding along portions
of the West Fork Carson below Woodfords and into the Carson
Valley. This flooding will be confined mainly to farm and ranch
lands near the river, but a few rural roads could be impacted.

* Flows are likely to be highest during the overnight hours before
falling during the morning.

Precautionary/preparedness actions...

A flood advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.


Lat... Lon 3880 11967 3878 11969 3876 11972 3876 11974
      3880 11971 3882 11971 3887 11972 3891 11977
      3887 11978 3880 11977 3877 11981 3878 11982
      3881 11979 3888 11982 3892 11984 3900 11984
      3899 11980 3895 11976 3891 11970 3889 11969
      3885 11968




Special Statement

Statement as of 2:46 PM PDT on May 21, 2017

Expires 8:00 PM EDT on May 22, 2017



... Snowmelt flooding concerns increase over the eastern Sierra
and western Nevada...

With temperatures rising well above normal through Thursday,
snowmelt will accelerate across the eastern Sierra. The increase
in snowmelt will cause daily rises in many small streams from Mono
County north through the northern Sierra. Snowmelt flow typically
peaks in smaller streams late in the evening or overnight.
Farther downstream flows will continue to increase through next
week as the smaller streams add water to the main rivers.

Small stream and Walker, Carson, and Truckee River flooding summary:

* on the west Walker River, minor to moderate flooding is
expected from the Walker River canyon into Antelope Valley and
Smith Valley, as well as downstream through Wilson Canyon.

* On the east Walker River, very minor flooding is possible below
Bridgeport Reservoir. Farther down the river, minor to moderate
flooding is expected from just above strosnider ditch to the
confluence with the west Walker.

* The Walker River through Mason Valley and Yerington is expected
to reach major flood stage. Flooding greater than that
experienced in 1983 and 1986 is expected and may persist for a
prolonged period of time.

* Below Weber Reservoir minor flooding is possible if releases
from the Reservoir need to be increased.

* Small streams draining the eastern Sierra could see flows in
excess of 3 times their current flows causing flooding near the
streams from southern Mono County north through the Tahoe basin
and into parts of Sierra and Plumas counties.

* The upper parts of the Carson River... including the southwest
Carson Valley... are likely to experience minor flooding of farm
and ranch lands.

* The Truckee River will likely see minor flooding below Lake
Tahoe through the city of Truckee and nearby areas. This is
likely to be confined to areas immediately adjacent to the river
with impacts confined to campgrounds and bike trails.


Http://weather.Gov/Reno


246 PM PDT sun may 21 2017


... Snowmelt flooding concerns increase over the eastern Sierra
and western Nevada...

With temperatures rising well above normal through Thursday,
snowmelt will accelerate across the eastern Sierra. The increase
in snowmelt will cause daily rises in many small streams from Mono
County north through the northern Sierra. Snowmelt flow typically
peaks in smaller streams late in the evening or overnight.
Farther downstream flows will continue to increase through next
week as the smaller streams add water to the main rivers.

Small stream and Walker, Carson, and Truckee River flooding summary:

* on the west Walker River, minor to moderate flooding is
expected from the Walker River canyon into Antelope Valley and
Smith Valley, as well as downstream through Wilson Canyon.

* On the east Walker River, very minor flooding is possible below
Bridgeport Reservoir. Farther down the river, minor to moderate
flooding is expected from just above strosnider ditch to the
confluence with the west Walker.

* The Walker River through Mason Valley and Yerington is expected
to reach major flood stage. Flooding greater than that
experienced in 1983 and 1986 is expected and may persist for a
prolonged period of time.

* Below Weber Reservoir minor flooding is possible if releases
from the Reservoir need to be increased.

* Small streams draining the eastern Sierra could see flows in
excess of 3 times their current flows causing flooding near the
streams from southern Mono County north through the Tahoe basin
and into parts of Sierra and Plumas counties.

* The upper parts of the Carson River... including the southwest
Carson Valley... are likely to experience minor flooding of farm
and ranch lands.

* The Truckee River will likely see minor flooding below Lake
Tahoe through the city of Truckee and nearby areas. This is
likely to be confined to areas immediately adjacent to the river
with impacts confined to campgrounds and bike trails.


Http://weather.Gov/Reno

Areal Flood Watch, Areal Flood Advisory

Statement as of 2:39 PM PDT on May 21, 2017

Expires 4:45 PM EDT on May 25, 2017


... Flood Watch now in effect through Wednesday evening...

The Flood Watch is now in effect for

* portions of California and western Nevada, including the
following areas, in California, greater Lake Tahoe area,
Lassen-eastern Plumas-eastern Sierra counties, and Mono
County. In western Nevada, greater Lake Tahoe area and greater
Reno-Carson City-Minden area.

* Through Wednesday evening

* warming temperatures will accelerate snowpack melt across the
eastern Sierra through early week. Best estimates for flows this
week coming out of unregulated eastern Sierra creeks and streams
are likely to be 2-2.5 times current flows with smaller creeks
likely to see 3 times current flows.

* Daily peak flows on small creeks and streams typically occur
during the evening and overnight hours.

* Creeks and streams will run fast and very cold, bringing the
risk of hypothermia for those without protective gear. Flood
water will likely inundate pasture land, some campgrounds,
cover hiking and biking trails and roads leading into the high
country.

Precautionary/preparedness actions...

Excessive runoff may also generate rock and mud slides in steep
terrain. Persons living along small creeks and streams should
monitor the latest weather information at weather.Gov/Reno and be
prepared to take action should flooding occur.





1208 PM PDT sun may 21 2017

... The flood advisory for snowmelt remains in effect until 145 PM PDT
Thursday for alpine and Douglas counties...

* minor flooding impacts will begin in parts of the Carson Valley
late Tuesday and continue through Thursday.

* Warming temperatures will cause increased snowmelt this week. This
increased snowmelt will raise flows in both the East Fork Carson
and West Fork Carson rivers.

* The increased flows will result in minor flooding along portions
of the West Fork Carson below Woodfords and into the Carson
Valley. This flooding will be confined mainly to farm and ranch
lands near the river, but a few rural roads could be impacted.

* Flows are likely to be highest during the overnight hours before
falling during the morning.

Precautionary/preparedness actions...

A flood advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.


Lat... Lon 3880 11967 3878 11969 3876 11972 3876 11974
      3880 11971 3882 11971 3887 11972 3891 11977
      3887 11978 3880 11977 3877 11981 3878 11982
      3881 11979 3888 11982 3892 11984 3900 11984
      3899 11980 3895 11976 3891 11970 3889 11969
      3885 11968




Weather Severe Map
Alabama - Flood Warning , Flash Flood Watch , Flash Flood Watch, Coastal Hazard Statement , Public Information Statement
Alaska - Wind Advisory , Record Report
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Arkansas - Flood Warning , Flood Advisory , Public Information Statement
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Idaho - Areal Flood Warning , Flood Warning
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Nevada - Flood Warning, Areal Flood Warning , Areal Flood Warning , Flood Warning , Areal Flood Watch, Areal Flood Advisory , Flood Watch , Special Statement
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Pennsylvania - Beach Hazard Statement , Public Information Statement
Puerto Rico -
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South Dakota - Flood Warning , Special Statement
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Utah - Public Information Statement
Virginia - Severe Thunderstorm Warning
Washington - Flood Warning , Flood Watch , Special Statement
Wisconsin - Flood Warning , Areal Flood Warning , Flood Advisory , Flood Watch , Areal Flood Advisory
Wyoming - Special Statement

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