Alert archive / California / River Flood Warnings in 2018

River Flood Warning 2, NWS Reno, NV

April 3, 2018Nevada County, Placer County, California

NWS Reno, NV issued this river flood warning at Apr 3, 2018, 9:49 AM PDT for Nevada County, Placer County, California. It took effect at Apr 6, 2018, 3:01 PM PDT. It was in force for 42 hr.

The area

The outline as issued.

The facts

Issued
Apr 3, 2018, 9:49 AM PDT (16:49 UTC)
In effect from
Apr 6, 2018, 3:01 PM PDT
Expired
Apr 8, 2018, 9:19 AM PDT
In force
42 hr
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
Moderate

Counties Nevada County, CA, Placer County, CA

The radar

The Reno radar (KRGX), 81 km from the middle of the area, began a volume at 16:49 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 near Truckee (TRCC1). The gauge peaked at 5.32 ft at Apr 7, 2018, 10:00 AM PDT.

actionminormoderate24604/0304/0404/0504/0604/0704/0804/09
Action stage
4.5 ft
Minor stage
5.5 ft
Moderate stage
6.5 ft
Major stage
7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 10338000, 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.

482 
WGUS45 KREV 031649
FLWREV


Flood Warning
National Weather Service Reno NV
949 AM PDT Tue Apr 3 2018

...The National Weather Service in Reno has issued a Flood Warning 
for the following rivers in California... 

  Truckee River Near Truckee affecting Nevada and Placer Counties

For the Truckee River...including Truckee...Moderate to major flooding
is forecast.

A strong atmospheric river will impact the Truckee River Basin Friday
evening and Saturday...with several inches of precipitation likely in
the high Sierra. Snow levels are expected to rise to over 9,000 feet,
and possibly to around 10,000 feet, during the period of heaviest
precipitation. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons living near rivers, creeks, and streams in the 
Sierra, northeast California, and far western Nevada should 
monitor the latest weather information at weather.gov/reno and be 
prepared to take action. PREPARE NOW by clearing drainages and
ditches of debris in preparation for increased water flows.

The next forecast update for this location will be issued by Wednesday
morning.

&&

CAC057-061-042249-
/O.NEW.KREV.FL.W.0002.180407T0630Z-000000T0000Z/
/TRCC1.2.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/
949 AM PDT Tue Apr 3 2018

The National Weather Service in Reno has issued a 

* Flood Warning for The Truckee River Near Truckee.
* from late Friday evening through early Sunday morning.
* At  9:00 AM Tuesday the stage was 4.0 feet.
* Flood stage is 4.5 feet.
* Moderate to major flooding is forecast.
* Forecast...Rise above flood stage by late Friday evening and  
  continue to rise to near 6.5 feet by late Saturday morning.
* Impact...At 6.5 feet...Moderate to major flooding along the Truckee  
  River between Squaw Creek and Truckee.  About 5000 cfs. Impacts are
  expected to be similar to January 9, 2017. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$
9 follow-up statements
470 
WGUS85 KREV 042147
FLSREV
Flood Statement
National Weather Service Reno NV
247 PM PDT Wed Apr 4 2018

...The Flood Warning continues for the following rivers in 
California...

  Truckee River Near Truckee affecting Nevada and Placer Counties

For the Truckee River...including Truckee...Moderate to major
flooding is forecast.

A strong atmospheric river will impact the Truckee River Basin Friday
evening and Saturday...with several inches of precipitation likely in
the high Sierra. Snow levels are expected to rise to over 10,000 feet
during the period of heaviest precipitation. This rain and snowmelt
will combine with high flows due to releases out of Lake Tahoe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons living near rivers, creeks, and streams in the
Sierra, northeast California, and far western Nevada should monitor
the latest weather information at weather.gov/reno and be prepared to
take action. PREPARE NOW by clearing drainages and ditches of debris
and move items near the river to higher ground. 

The next forecast update for this location will be issued Thursday.

&&

CAC057-061-060347-
/O.CON.KREV.FL.W.0002.180407T0630Z-180408T1600Z/
/TRCC1.3.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/
247 PM PDT Wed Apr 4 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* from Friday evening to Sunday morning.
* At  2:00 PM Wednesday the stage was 4.0 feet.
* Flood stage is 4.5 feet.
* Moderate to major flooding is forecast.
* Forecast...Rise above flood stage by late Friday evening and  
continue to rise to near 6.7 feet by late Saturday morning. The  
river will fall below flood stage by late Sunday morning.
* Impact...At 6.5 feet...Major flooding along Truckee River between  
Squaw Creek and Truckee. Some private bridges and low-lying
structures along the river may flood. Impacts are expected to be
similar to January 9, 2017. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$
966 
WGUS85 KREV 052202
FLSREV
Flood Statement
National Weather Service Reno NV
302 PM PDT Thu Apr 5 2018

...The Flood Warning continues for the following rivers in 
California...Nevada...
 
  Truckee River Near Truckee affecting Nevada and Placer Counties
  Truckee River At Reno affecting Washoe County
  Truckee River At Vista affecting Storey and Washoe Counties

For the Truckee River...Moderate to major flooding is forecast for
Truckee. Minor flooding is forecast for Reno and Vista.

A strong atmospheric river will impact the Truckee River Basin Friday
evening and Saturday...with several inches of precipitation likely in
the high Sierra. Snow levels are expected to rise to over 10,000 feet
during the period of heaviest precipitation. This rain and snowmelt
will combine with high flows due to releases out of Lake Tahoe.

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons living near rivers, creeks, and streams in far
western Nevada should monitor the latest weather information at
weather.gov/reno and be prepared to take action. PREPARE NOW by
clearing drainages and ditches of debris and move items near the
river to higher ground. 

The next forecast update for these locations will be issued Friday.

&&

CAC057-061-070402-
/O.EXT.KREV.FL.W.0002.180407T0630Z-180408T1800Z/
/TRCC1.3.RS.180407T0630Z.180407T1800Z.180408T1600Z.NO/
302 PM PDT Thu Apr 5 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* from Friday evening to Sunday morning.
* At  2:00 PM Thursday the stage was 4.0 feet.
* Flood stage is 4.5 feet.
* Moderate to major flooding is forecast.
* Forecast...Rise above flood stage by late Friday evening and 
  continue to rise to near 6.6 feet by late Saturday morning. The 
  river will fall below flood stage by late Sunday morning.
* Impact...At 6.5 feet...Major flooding along Truckee River between  
  Squaw Creek and Truckee. Some private bridges and low-lying
  structures along the river may flood. Impacts are expected to be
  similar to January 9, 2017. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$

NVC031-070402-
/O.EXT.KREV.FL.W.0003.180407T2100Z-180407T2300Z/
/TRRN2.1.RS.180407T2100Z.180407T2100Z.180407T2100Z.NO/
302 PM PDT Thu Apr 5 2018

The Flood Warning continues for
  The Truckee River At Reno.
* during Saturday afternoon.
* At  2:15 PM Thursday the stage was 8.3 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...Rise to near flood stage of 11.0 feet by early Saturday
  afternoon. The river will then fall back below flood stage
  Saturday afternoon.
* Impact...At 11.0 feet...Flood Stage...The river will be running
  near bankfull with minor impacts to parks, trails and low lying
  areas along the river from Mogul to Highway 395. Flows are expected
  to crest Saturday afternoon at levels similar to February 10,
  2017 and significantly below January 9, 2017.  

&&

LAT...LON 3954 11996 3956 11977 3945 11976 3946 11983 3950 11996


$$

NVC029-031-070402-
/O.EXT.KREV.FL.W.0004.180407T1730Z-180408T1200Z/
/VISN2.1.RS.180407T1730Z.180408T0200Z.180408T0920Z.NO/
302 PM PDT Thu Apr 5 2018

The Flood Warning continues for
  The Truckee River At Vista.
* from Saturday morning to late Saturday night.
* At  2:20 PM Thursday the stage was 10.6 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late Saturday morning and 
  continue to rise to near 17.7 feet by Saturday evening. The river 
  will fall below flood stage by early Sunday morning.
* Impact...At 17.5 feet...Minor flooding is expected impacting
  parks, trails, and agricultural areas near the river 
  between Highway 395 and Nixon. Possible impacts to roads and
  buildings between Highway 395 and Vista Boulevard. Flows are
  expected to crest Saturday evening at levels similar to February
  10, 2017 and significantly below January 9, 2017.

&&

LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976


$$
799 
WGUS45 KREV 062238
FLWREV


Flood Warning
National Weather Service Reno NV
338 PM PDT Fri Apr 6 2018

  Truckee River Near Truckee affecting Nevada and Placer Counties
  Truckee River At Vista affecting Storey and Washoe Counties

For the Truckee River...including Truckee...Vista...
Minor flooding is occurring in Truckee with moderate flooding
forecast. For Vista, minor flooding is forecast.
 
A strong atmospheric river will continue to bring copious amounts of
rain through midday Saturday, with the heaviest rainfall rates still
to come overnight into Saturday morning. 

The forecast for peak flows has lessened due to decreased releases
out of Lake Tahoe during the peak of the heaviest rainfall. As
releases change out of Lake Tahoe, the stage on the Truckee will also
change. Just because the river goes down, does not mean it won't go
back up again.

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons living near rivers, creeks, and streams in far
western Nevada should monitor the latest weather information at
weather.gov/reno and be prepared to take action. 

The next forecast update for these locations will be issued
overnight tonight.

&&

CAC057-061-080438-
/O.EXT.KREV.FL.W.0002.180406T2201Z-180408T1200Z/
/TRCC1.2.RS.180406T2130Z.180407T1800Z.180408T1100Z.NO/
338 PM PDT Fri Apr 6 2018

The Flood Warning continues for 
 The Truckee River Near Truckee.
* from this afternoon to late Saturday night.
* At  2:30 PM Friday the stage was 4.5 feet.
* Flood stage is 4.5 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 5.9 feet by late 
  Saturday morning. The river will fall below flood stage early 
  Sunday morning.
* Impact...At 6.0 feet...Moderate flooding from Bear Creek in the 
  Alpine Meadows area to Truckee...about 4200 cfs.  Flooding of yards
  and basements of low-lying property along river...some private
  bridges could be impacted. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$

NVC029-031-080438-
/O.EXT.KREV.FL.W.0004.180407T2000Z-180408T0530Z/
/VISN2.1.RS.180407T2000Z.180408T0100Z.180408T0445Z.NO/
338 PM PDT Fri Apr 6 2018

The Flood Warning continues for 
 The Truckee River At Vista.
* from Saturday afternoon to Saturday evening.
* At  2:50 PM Friday the stage was 10.9 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by early Saturday afternoon and 
  continue to rise to near 16.5 feet by Saturday evening. The river 
  will fall below flood stage by late Saturday evening.
* Impact...At 16.5 feet...Minor flooding US Highway 395 to Nixon, 
  impacting parks, trails, and agricultural areas near the river.
  Possible impacts to roads and buildings between Highway 395 and
  Vista Boulevard. This is significantly lower than the flooding in
  January and February of 2017.


&&

LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976


$$
911 
WGUS85 KREV 071003
FLSREV
Flood Statement
National Weather Service Reno NV
303 AM PDT Sat Apr 7 2018

...The Flood Warning continues for the following rivers in 
California...Nevada...
 
  Middle Fork Feather River Near Portola affecting Plumas County
  Truckee River Near Truckee affecting Nevada and Placer Counties
  Truckee River At Vista affecting Storey and Washoe Counties
  West Fork Carson River At Woodfords affecting Alpine and Douglas 
  Counties

A strong atmospheric river will bring moderate to heavy rain in much
of the Sierra, northeast California, far western Nevada today. This
rain will accelerate mid- and high-elevation snowmelt in many
basins and contribute to runoff. The precipitation will end late
Saturday and runoff will decrease, but impacts will still be felt on
the main stem rivers into Sunday.

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be alert for heavy rain upstream of your location which could cause 
additional rapid rises on rivers and streams. Valuables should be
moved away from areas subject to flooding. Never drive through
flooded areas. Follow the directions of emergency officials.

&&

CAC057-061-081603-
/O.EXT.KREV.FL.W.0002.000000T0000Z-180409T0500Z/
/TRCC1.2.RS.180406T2130Z.180407T1800Z.180408T1100Z.NO/
303 AM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* until Sunday evening.
* At 2:00 AM Saturday the stage was 3.9 feet.
* Flood stage is 4.5 feet.
* Moderate flooding is forecast.
* Forecast...Rise above flood stage by early Saturday morning and 
  continue to rise to near 6.3 feet by late Saturday morning. The 
  river will fall below flood stage by early Sunday morning.
* Impact...At 6.0 feet, moderate flooding from Bear Creek in the
  Alpine Meadows area to Truckee is likely. Flooding of yards and
  basements of low-lying homes along river can be expected with some
  private bridges impacted. 
  
&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$

NVC029-031-081603-
/O.EXT.KREV.FL.W.0004.180407T1712Z-180409T0000Z/
/VISN2.1.RS.180407T1712Z.180408T0100Z.180408T0600Z.NO/
303 AM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Truckee River At Vista.
* from this morning to Sunday afternoon.
* At 1:35 AM Saturday the stage was 12.2 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late Saturday morning and 
  continue to rise to near 16.9 feet by Saturday evening. The river 
  will fall below flood stage by late Saturday evening .
* Impact...At 16.5 feet, minor flooding U.S. Highway 395 to Nixon, 
  including parks, trails, and agricultural areas near the
  river is likely. Possible impacts to roads and buildings between
  Highway 395 and Vista Boulevard. This is significantly lower than
  the flooding in January and February of 2017.

&&

LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976


$$

CAC003-NVC005-081603-
/O.CON.KREV.FL.W.0006.000000T0000Z-180409T0400Z/
/WOOC1.2.ER.180407T1100Z.180407T1800Z.180408T1000Z.NR/
303 AM PDT Sat Apr 7 2018

The Flood Warning continues for
  The West Fork Carson River At Woodfords.
* until Sunday evening.
* At  1:30 AM Saturday the stage was 13.5 feet.
* Flood stage is 14.0 feet.
* Moderate flooding is forecast.
* Forecast...Rise above flood stage by early Saturday morning and 
  continue to rise to near 14.6 feet by late Saturday morning.the 
  river will fall below flood stage by early Sunday morning.
* Impact...At 14.5 feet, minor to moderate flooding is likely in the
  southwest Carson Valley between Centerville and Genoa, Nevada.
  Many, local roads may be flooded in this area. Minor to 
  moderate flooding is possible in Alpine County, California near
  Woodfords and Paynesville. 

&&

LAT...LON 3877 11985 3900 11983 3896 11978 3881 11974 3875 11983


$$

CAC063-081603-
/O.EXT.KREV.FL.W.0005.180409T0000Z-180410T0500Z/
/MFTC1.1.ER.180409T0000Z.180409T0000Z.180409T1100Z.NO/
303 AM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Middle Fork Feather River Near Portola.
* from Sunday afternoon to Monday evening.
* At 1:30 AM Saturday the stage was 4.2 feet.
* Flood stage is 8.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to flood stage Sunday
  afternoon then fall below flood stage Monday morning.
* Impact...At 8.5 feet, some minor lowland flooding is possible
  between Beckwourth and Sloat, very low lying areas near the river
  in Portola.

&&

LAT...LON 3988 12071 3983 12038 3981 12039 3972 12058 3985 12072


$$
988 
WGUS85 KREV 071646
FLSREV
Flood Statement
National Weather Service Reno NV
946 AM PDT Sat Apr 7 2018

...The Flood Warning is cancelled for the following rivers in 
Nevada...
 
  Truckee River At Vista affecting Storey and Washoe Counties
  
...The Flood Warning continues for the following rivers in 
California...
 
  Truckee River Near Truckee affecting Nevada and Placer Counties

Rainfall has ended across the region and with less additional rain
than expected and reduced releases from Lake Tahoe, flooding is no
longer anticipated on the middle and lower reaches of the Truckee
River. Minor to moderate flooding is expected to continue for the
upper reaches of the Truckee River in Truckee through tonight. 

Despite the lessened flows, the river continues to run high and
fast, so caution is advised. As releases change out of Lake Tahoe,
the stage on the Truckee will also change. Just because the river
goes down, does not mean it won't go back up again. High flows will
continue the next several days along the Truckee River.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

The next forecast update for these locations will be issued at about
3 pm this afternoon.

&&

CAC057-061-082246-
/O.EXT.KREV.FL.W.0002.000000T0000Z-000000T0000Z/
/TRCC1.2.RS.180406T2130Z.180407T1800Z.000000T0000Z.NO/
946 AM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* until further notice.
* At  9:00 AM Saturday the stage was 5.1 feet.
* Flood stage is 4.5 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 5.7 feet by late 
  Saturday morning then begin falling.
* Impact...At 5.5 feet...Moderate flooding from Bear Creek in the 
  Alpine Meadows area to Truckee...about 3500 cfs.  Flooding of yards
  and basements of low-lying property along river...some private
bridges may be impacted. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$

NVC029-031-071716-
/O.CAN.KREV.FL.W.0004.000000T0000Z-180409T0000Z/
/VISN2.N.RS.000000T0000Z.000000T0000Z.000000T0000Z.NO/
946 AM PDT Sat Apr 7 2018

The Flood Warning is cancelled for
  The Truckee River At Vista.
* At  9:05 AM Saturday the stage was 11.9 feet.
* Flood stage is 15.0 feet.
* Forecast...The river will crest below flood stage with a value of 
  14.2 feet Saturday afternoon.
* Impact...At 14.0 feet...Maximum safe flow from US Highway 395 in 
  Reno to Nixon, including Truckee Meadows. Very minor flooding of 
  meadows below East McCarran Boulevard in Sparks. Some
  minor backwater effects of high Truckee stages may extend south
  along Steamboat Creek. 
  
&&

LAT...LON 3954 11979 3989 11937 3967 11924 3957 11933 3943 11976


$$
578 
WGUS85 KREV 072215
FLSREV
Flood Statement
National Weather Service Reno NV
315 PM PDT Sat Apr 7 2018

...The Flood Warning continues for the following rivers in 
California...

  Truckee River Near Truckee affecting Nevada and Placer Counties

The river has crested and is beginning to recede. Additional high
flows are likely as water is released from Lake Tahoe with
secondary, lesser crests. The river will be above flood stage at
times the next several days.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

The next forecast update for these locations will be issued at about
9 pm this evening.

&&

CAC057-061-090415-
/O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/
/TRCC1.1.RS.180406T2130Z.180407T1700Z.000000T0000Z.NO/
315 PM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* until further notice.
* At  2:00 PM Saturday the stage was 4.8 feet.
* Flood stage is 4.5 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall, with lesser secondary
  rises likely due to releases from Lake Tahoe.
* Impact...At 5.0 feet...Minor flooding from Bear Creek in the
  Alpine Meadows area to Truckee. Truckee River bike path between
  River Ranch at Alpine Meadows Road to Tahoe City flooded up to a
  foot deep. Minor flooding of property in low lying areas along the
  river. 


&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$
194 
WGUS85 KREV 080458
FLSREV
Flood Statement
National Weather Service Reno NV
958 PM PDT Sat Apr 7 2018

...The Flood Warning continues for the following rivers in 
California...

  Truckee River Near Truckee affecting Nevada and Placer Counties

The river has crested and is beginning to recede. Additional high
flows are likely as water is released from Lake Tahoe with
secondary, lesser crests. The river will be above flood stage at
times the next several days.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

&&

CAC057-061-091058-
/O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/
/TRCC1.1.RS.180406T2130Z.180407T1715Z.000000T0000Z.NO/
958 PM PDT Sat Apr 7 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* until further notice.
* At  9:30 PM Saturday the stage was 4.1 feet.
* Flood stage is 4.5 feet.
* Minor flooding is forecast.
* Forecast...The river will continue to fall into early Sunday then
  rise above flood stage late Sunday afternoon. The river will crest
  near 4.7 feet Sunday evening.
* Impact...At 4.5 feet, minor flooding from Bear Creek in the Alpine
  Meadows area to Truckee. Truckee River bike path between the River
  Ranch at Alpine Meadows Road to Tahoe City begins to flood. 
  Basements and yards of some low-lying homes along the river begin
  to flood. Deep Creek Campground begins to flood.  

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$
733 
WGUS85 KREV 080856
FLSREV
Flood Statement
National Weather Service Reno NV
156 AM PDT Sun Apr 8 2018

...The Flood Warning continues for the following rivers in 
California...

  Truckee River Near Truckee affecting Nevada and Placer Counties

The Truckee River above Truckee is slowly falling early this
morning, but as reservoir releases are increased from Lake Tahoe,
the river should rise above flood stage by late Sunday afternoon or
Sunday evening. After the river rises above flood stage, it is
likely to remain just above minor flood stage for several days. This
is likely to create minimal flood impacts, except to the bike path
and a few campgrounds in the area, and to some yards and basements
very near the river.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

&&

CAC057-061-091456-
/O.CON.KREV.FL.W.0002.000000T0000Z-000000T0000Z/
/TRCC1.1.RS.180406T2130Z.180407T1715Z.000000T0000Z.NO/
156 AM PDT Sun Apr 8 2018

The Flood Warning continues for
  The Truckee River Near Truckee.
* until further notice.
* At 1:30 AM Sunday the stage was 4.2 feet.
* Flood stage is 4.5 feet.
* Minor flooding is forecast.
* Forecast...The river will continue to fall into early Sunday then
  rise above flood stage late Sunday afternoon. The river will crest
  near 4.7 feet Sunday evening and remain above flood stage through
  much of the week.
* Impact...At 4.5 feet, minor flooding from Bear Creek in the
  Alpine Meadows area to Truckee is likely. The Truckee River bike
  path between the River Ranch at Alpine Meadows Road to Tahoe City
  begins to flood. A few basements and yards of some low-lying homes
  along the river may begin to flood. Deep Creek Campground begins
  to flood. 
  
&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$
419 
WGUS85 KREV 081619
FLSREV
Flood Statement
National Weather Service Reno NV
919 AM PDT Sun Apr 8 2018

...The Flood Warning is cancelled for the following rivers in 
California...
 
  Truckee River Near Truckee affecting Nevada and Placer Counties

The currently planned reservoir releases out of Lake Tahoe are
expected to keep the Truckee River near Truckee just below flood
stage. Keep in mind that the river is still running very high and
portions of the bike path may be impacted between River Ranch at
Alpine Meadows Road to Tahoe City. If releases change, the river
may exceed flood stage once again.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These river forecasts are based on forecast rainfall and temperature 
conditions at time of issuance. If actual conditions vary from these
forecasts...river conditions will vary accordingly. River forecasts
include current and planned reservoir releases.

&&

CAC057-061-081649-
/O.CAN.KREV.FL.W.0002.000000T0000Z-180408T1619Z/
/TRCC1.1.RS.180406T2130Z.180407T1715Z.180407T2307Z.NO/
919 AM PDT Sun Apr 8 2018

The Flood Warning is cancelled for
  The Truckee River Near Truckee.
* At  8:30 AM Sunday the stage was 3.9 feet.
* Flood stage is 4.5 feet.
* Fell below flood stage at  4:07 PM Saturday.
* Forecast...The river will continue to fall to 4.2 feet by early 
  Monday morning.
* Impact...Portions of the bike path may have minor amounts of water
on it between River Ranch at Alpine Meadows Road to Tahoe City. 

&&

LAT...LON 3918 12021 3932 12022 3939 12010 3938 12009 3919 12019


$$

What forecasters said that day

The local office's own words before this river flood warning 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 warning went out at Apr 3, 3:21 AM PDT, 6 hours 28 minutes earlier.

Area forecast discussion, Apr 3, 3:21 AM PDT, 6 hours 28 minutes before
Area Forecast Discussion
National Weather Service Reno NV
321 AM PDT Tue Apr 3 2018

.SYNOPSIS...

Expect dry and mild weather through mid week. A few light showers
are possible north of Interstate 80 early Wednesday and again
Thursday. A more vigorous Atmospheric River induced system is
taking shape for late week. This system will bring a period of
moderate to heavy precipitation, gusty winds, and some concerns
for flooding along rivers and streams.

&&

.SHORT TERM...

Warm temperatures continue as north flow from yesterday gives way
to weak ridging over the area. Expect temperatures to remain
around the 70 mark for the valleys today and Wednesday before a
cooling trend begins as the pattern begins to change. Sunny
weather today will become more cloudy going through the week as
initial moisture moves into the west coast.

Normal afternoon breeziness the next few days until Thursday
night when upper level winds begin to pick up. Wednesday night
into Thursday there are slight chances for rain, mainly north of
I-80, but likely not enough to measure until late in the week when
the main event arrives. -Zach

.LONG TERM...Friday and beyond...

Storm is still on track to impact the region Friday-Saturday with a
period of warm advection and light to moderate precipitation
developing Friday, especially along the Sierra. This will be
followed by increased forcing and precipitation intensity Friday
night-Saturday ahead of incoming upper trough. Snow levels are still
expected to remain very high for most of the precipitation event
with model soundings much warmer than our last event. So hydrologic
concerns remain and updates will be forthcoming later today based on
the latest adjustments.

Those adjustments include an increase in QPF along the Sierra from
Alpine County southward into Mono County as models have shifted the
moisture plume a little south from previous runs. The GFS is most
pronounced with this shift, pushing a dry slot into the northern
Sierra and cutting precipitation off sooner there. This scenario
would lessen hydrologic impacts for the Middle Fork Feather and
Truckee River while increasing them for the Carson and Walker River
basins. There are still some model solutions that show impressive
QPF totals across the northern areas so we are keeping QPF values
across the Tahoe Basin close to where they were at yesterday (3" at
the crest, 1.5-2" in the Basin and around 1" in the foothills west
of Highway 395. Farther south into Alpine and Mono Counties we
increased QPF rather substantially as AR will likely have a longer
duration. QPF was adjusted from around 2" up to 3". For western NV,
we lowered QPF a bit with amounts closer to 1/4-1/3" most areas.

The cold front will push into the northern Sierra by early afternoon
(sooner in some solutions) with  tapering to showers of
a lighter intensity. Snow levels do come down enough such that some
snow accumulation is possible by late in the day especially over
passes. Snowfall amounts would only be a few inches at most but
could result in some chain or snow tire requirements Saturday night.
This colder air will continue to push through the region Saturday
afternoon with heavier precipitation tapering from north to south
through Alpine and Mono Counties by late in the day. Strong gusty
winds are still expected across the ridges and western NV for
Saturday afternoon with guidance continuing to show impressive
gradient and possible sustained winds 30+ mph.

Things quiet down for Sunday and Monday with generally dry and mild
conditions. Temperatures will be close to normal Sunday before
warming to around 10 degrees above normal for Monday. Hohmann

&&

.AVIATION...

Aside from some low chances of rain towards the Oregon border on
Wednesday, aviation conditions will remain VFR under generally light
wind flow through Thursday.

Winds and chances of precipitation increase Friday as a strong, wet
storm system approaches the Sierra. Expect another round of strong
ridge winds resulting in moderate-severe turbulence and LLWS for
area terminals Friday and Saturday. Moderate to heavy rain can also
be expected for Sierra terminals with lighter rain along the Sierra
Front Friday into Saturday. Boyd/Hohmann

&&

.HYDROLOGY...

Recent warm temperatures combined with high sun angles have already
initiated snowmelt in lower elevations. Moderate rains late Thursday
through Friday will further ripen the mid-elevation snowpack as well
as increase soil moisture. This will prime conditions for a highly
efficient period of runoff during the higher intensity rainfall with
very high snow levels expected late Friday through Saturday morning.
The ability of the snowpack at different elevations and aspects to
retain rain versus passing the rain through with additional snowmelt
is an area of forecast uncertainty.

There is high confidence in rivers and streams rising rapidly Friday
evening into Saturday leading to minor to moderate flooding.
While flooding is most likely along small streams, poor drainage
areas, recent burn areas, mountain communities, and closed basins,
flooding is also possible along main-stem rivers. Moderate flooding
is likely on the Truckee River near Truckee due to a combination of
heavy rain and high flows below Lake Tahoe. Minor flooding is also
possible on the Truckee through Reno, the Susan, Middle Fork of the
Feather and the Carson rivers. In general, flows and impacts are
expected to exceed the March 22nd and Nov 18th, 2017 events, but
stay significantly below the January and February 2017 events.
Current river forecasts only extend 5 days, and do not cover the
entire event, so check back for more details. Bardsley

&&

.REV Watches/Warnings/Advisories...
NV...None.
CA...None.
&&

For more information from the National Weather Service visit...
http://weather.gov/reno

In the hours before

Special weather statement, Apr 3, 5:46 AM PDT, 4 hours 3 minutes before
Special Weather Statement
National Weather Service RENO NV
546 AM PDT Tue Apr 3 2018

CAZ070>073-NVZ001>005-040100-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Western Nevada Basin and Range including Pyramid Lake-
Northern Washoe County-
Including the cities of Cedarville, Eagleville, Fort Bidwell,
Portola, Susanville, Westwood, Sierraville, Loyalton,
South Lake Tahoe, Tahoe City, Truckee, Markleeville, Bridgeport,
Coleville, Lee Vining, Mammoth Lakes, Hawthorne, Yerington,
Smith Valley, Mina, Schurz, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
546 AM PDT Tue Apr 3 2018

...SIGNIFICANT STORM WITH GUSTY WINDS AND HEAVY RAINS FRIDAY
THROUGH SUNDAY...

A very warm, wet storm will bring gusty winds and heavy rains to
the Sierra and western Nevada beginning on Friday and continuing
through Sunday. The main concern will be the potential for
flooding along creeks, streams, and rivers.

What can you do now? Prepare for heavy rainfall by clearing
drainages, ditches, and gutters of debris and snow the next few
days. This will help to mitigate some of the flooding and runoff
potential. Prepare for strong winds by securing outdoor furniture,
temporary construction structures, and canopies.

RAINS - Areas of moderate to heavy rain will develop Friday night
and continue through late Saturday night. Snow levels will start
around 10000 feet keeping the bulk of the precipitation in the
form of rain. Rainfall totals between 2 to 4 inches along the
crest, 1 to 2 inches in the Tahoe Basin, and up to 1.5 inches will
be possible in the foothills. Although less than an inch is
generally expected in lower western Nevada valleys, plan on
impacts. Rises on small creeks and streams are expected Friday
night as well as ponding in low lying areas and street
intersections. Areas that experienced enhanced runoff or flooding
during the last storm a couple of weeks ago should plan on similar
or greater impacts due to the heavy rain and the expected
contribution of the melting snow pack. Mainstem rivers will also
experience increased flows by Saturday, especially the middle fork
of the Feather, Carson, Susan, and the Truckee. For more details
on mainstem river forecasts check www.cnrfc.noaa.gov or read the
hydrology section of the area forecast discussion.

WINDS - Significant impacts are likely for high profile vehicles,
boaters, and aviation due to the strong winds on Saturday.
Widespread wind gusts of 40 to 50 mph are possible with stronger
wind gusts in wind prone locations and along ridgelines.

SNOW - Very heavy, wet snow is possible late Saturday night into
early Sunday morning as snow levels slowly fall below 7000 feet.
Chain restrictions may occur on the Sierra passes.

http://weather.gov/reno

The office that day

Everything else NWS Reno, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 9:12 AM PDTFlood WatchREVAlpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more4 days

Nearby

River Flood Warnings in California, 2018Every river flood warning in 2018

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.