Alert archive / Nevada / River Flood Warnings in 2017

River Flood Warning 12, NWS Reno, NV

January 11, 2017Storey County, Washoe County, Nevada

NWS Reno, NV issued this river flood warning at Jan 11, 2017, 12:01 AM PST for Storey County, Washoe County, Nevada. It was in force for 22 hr.

The area

The outline as issued.

The facts

Issued
Jan 11, 2017, 12:01 AM PST (08:01 UTC)
Expired
Jan 11, 2017, 10:08 PM PST
In force
22 hr
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
Minor

Counties Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 18 km from the middle of the area, began a volume at 08:04 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 Vista (VISN2). The gauge peaked at 15.66 ft at Jan 11, 2017, 1:00 AM PST.

actionminormoderate101501/1101/1201/13
Action stage
15 ft
Minor stage
17 ft
Moderate stage
18.5 ft
Major stage
21 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 10350000, 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.

706 
WGUS45 KREV 110801
FLWREV
 
FLOOD WARNING 
NATIONAL WEATHER SERVICE RENO, NV 
1201 AM PST WED JAN 11 2017

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

  Truckee River At Vista affecting Storey AND Washoe COUNTIES

For the Truckee River...including Vista...Minor flooding is forecast.

Heavy rain in the Steamboat Creek drainage is producing significant
run off tonight. This will move into the Truckee River and create
minor flooding from Vista downstream to Derby Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never drive through flooded areas as rushing water can easily sweep a
car away...

The next forecast update for these locations will be issued at about
3 am.

&&

NVC029-031-120608-
/O.NEW.KREV.FL.W.0012.170111T0801Z-170112T0608Z/
/VISN2.1.ER.170111T0736Z.170111T1000Z.170111T1208Z.NO/
1201 AM PST WED JAN 11 2017

The National Weather Service in Reno has issued a 

* Flood Warning for 
  The Truckee River At Vista.
* UNTIL WEDNESDAY EVENING...Or until the warning is cancelled.
* At 11:15 PM Tuesday the stage was 14.7 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late Tuesday evening  and 
  continue to rise to near 16.0 feet by early Wednesday morning.the 
  river will fall below flood stage by early Wednesday morning.
* Impact...At 16.0 feet...Minor flooding begins below US Highway 395 
  through Sparks, downstream to Lockwood, Tracy, Wadsworth, and 
  Nixon. 

&&

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


$$
3 follow-up statements
374 
WGUS85 KREV 111032
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
232 AM PST WED JAN 11 2017
   

...The flood warning is cancelled for the following rivers in 
California...Nevada...
 
  Middle Fork Feather River Near Portola affecting Plumas COUNTY
  Carson River Near Carson City affecting Carson City...Churchill...
  Douglas AND Lyon COUNTIES
  
...The flood warning continues for the following rivers in Nevada...

Minor flooding will continue in the lower portions of the Truckee
River into the early morning hours. River flooding has ended at
Carson City, although flooding in low lying areas will continue and
small streams will remain high due to recent heavy rain. On the
Middle Fork Feather River, the flooding is ending near Portola, but
minor flooding remains possible downstream from Clio to Sloat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never drive 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 Wednesday.

&&

NVC029-031-120620-
/O.EXT.KREV.FL.W.0012.000000T0000Z-170112T0620Z/
/VISN2.1.ER.170111T0735Z.170111T0930Z.170111T1220Z.NO/
232 AM PST WED JAN 11 2017

The Flood Warning continues for
  The Truckee River At Vista.
* UNTIL THIS EVENING.
* At 2:15 AM Wednesday the stage was 15.5 feet.
* Flood stage is 15.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 15.6 feet by 
  early Wednesday morning. The river will fall below flood stage 
  early Wednesday morning.
* Impact...Very minor flooding will affect areas below Vista to
  Derby Dam. 

&&

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


$$

CAC063-111102-
/O.CAN.KREV.FL.W.0008.000000T0000Z-170113T0300Z/
/MFTC1.2.ER.170109T1830Z.170110T0245Z.170111T0345Z.UU/
232 AM PST WED JAN 11 2017

The Flood Warning is cancelled for
  The Middle Fork Feather River Near Portola.
* At 12:30 AM Wednesday the stage was 8.0 feet.
* Flood stage is 8.5 feet.
* Fell below flood stage at 7:45 PM Tuesday.
* Forecast...The river will continue to fall to 8.1 feet by early 
  Thursday morning.
* Impact...At 8.0 feet...Some areas of minor flooding with out of
  bank flows will continue from Beckwourth to Sloat with the best
  chance of minor flooding below Clio.

&&

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


$$

NVC001-005-019-510-111102-
/O.CAN.KREV.FL.W.0011.000000T0000Z-170111T1900Z/
/STWN2.3.ER.170110T0539Z.170110T1515Z.170111T0326Z.NO/
232 AM PST WED JAN 11 2017

The Flood Warning is cancelled for
  The Carson River Near Carson City.
* At 2:15 AM Wednesday the stage was 9.2 feet.
* Flood stage is 10.0 feet.
* Fell below flood stage at Carson City at 7:26 PM Tuesday.
* Forecast...The river will continue to fall to 7.4 feet by early 
  Thursday morning near Carson city, but remain well above flood 
  stage from Dayton to Fort Churchill.
* Impact...Minor low land flooding is likely just east of Carson
  City. Moderate to major flooding will continued downstream from
  Dayton to Fort Churchill through Wednesday afternoon. 

&&

LAT...LON 3900 11984 3924 11973 3940 11921 3933 11907 3898 11978


$$
299 
WGUS85 KREV 111827
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
1027 AM PST WED JAN 11 2017
   

...The flood warning continues for the following rivers in Nevada..
  Truckee River At Vista affecting Storey AND Washoe COUNTIES
  
Minor flooding will continue in the lower portions of the Truckee
River through tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never drive through flooded areas as rushing water can easily sweep a
car away...

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

&&

NVC029-031-120620-
/O.CON.KREV.FL.W.0012.000000T0000Z-170112T0620Z/
/VISN2.1.ER.170111T0735Z.170111T0930Z.170111T1255Z.NO/
1027 AM PST WED JAN 11 2017

The Flood Warning continues for
  The Truckee River At Vista.
* UNTIL THIS EVENING.
* At  9:15 AM Wednesday the stage was 14.2 feet.
* Flood stage is 15.0 feet.
* Forecast...The lower reaches of the Truckee River between Derby Dam 
  and Nixon will see rises to minor flood stage through tonight.
* Impact...Very minor flooding of lowland areas along the Truckee 
  River between Derby Dam and Nixon. 


&&

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


$$
330 
WGUS85 KREV 120352
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
752 PM PST WED JAN 11 2017
   

...The flood warning is cancelled for the following rivers in 
Nevada...
 
  Truckee River below Vista affecting Storey AND Washoe COUNTIES

The flow on the Truckee River below Vista, including Derby Dam,
Wadsworth and Nixon has dropped below flood stage and is expected to
continue to fall through the night.



&&

NVC029-031-120422-
/O.CAN.KREV.FL.W.0012.000000T0000Z-170112T0620Z/
/VISN2.1.ER.170111T0735Z.170111T0930Z.170111T1255Z.NO/
752 PM PST WED JAN 11 2017

The Flood Warning is cancelled for
  The Truckee River At Vista.
* At 7:15 PM Wednesday the stage was 12.8 feet.
* Flood stage is 15.0 feet.
* Forecast...The river will continue to fall to 10.2 feet by early 
  Friday morning.



&&

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 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 Jan 10, 10:17 PM PST, 1 hour 44 minutes earlier.

Area forecast discussion, Jan 10, 10:17 PM PST, 1 hour 44 minutes before
Area Forecast Discussion
National Weather Service Reno NV
1017 PM PST Tue Jan 10 2017

.UPDATE...

Moderate to heavy rain continues for areas east of the Sierra
below 5500 feet while snow is falling above 5500 feet. In the
Sierra moderate to heavy snow continues while northeast California
and far northwest Nevada are seeing a bit of a break. There is a
back edge to the heaviest precipitation tonight...but with streams
still running high and soils saturated...the moderate to heavy
rain is likely to cause continued or increased flooding of low
lying areas near the streams and ponding in poor drainage areas.

The good news is that the winds have backed off. We will let the
High Wind Warnings and Wind Advisories expire this evening. Gusty
winds will continue but they should be below advisory and warning
criteria for the remainder of the night.

Blizzard conditions continue in the Sierra...but there should be a
lessening of snow rates later tonight. 20

&&

.PREVIOUS DISCUSSION... /Issued 719 PM PST Tue Jan 10 2017/

UPDATE...

Very strong winds are occurring on Highway 95 near Walker Lake
this evening. The winds have a downslope component and are being
channeled through a canyon near the community of Walker Lake.
Winds may gust over 100 mph at times. Elsewhere in the Mineral
County region the winds should gust no more than 40-45 mph.

Snow continues in the Sierra and northeast California as snow
levels hover around 5500-6000 feet. To the east a mix of rain and
snow is spilling into far western Nevada with the heaviest
precipitation now from Washoe Valley north to Pyramid Lake. Small
stream and creeks below 6500 feet are still susceptible to
flooding and a Flood Advisory remains in effect from Douglas
County north to northern Washoe County. River flood warnings
remain in effect for the Carson River and the Middle Fork Feather
River. The worst flooding will continue below Carson City through
Dayton and move to near Fort Churchill late tonight.

If rain fall continues and snow levels did not fall after midnight
we have need to issue Flood Warnings again for parts of the
Truckee Meadows as Steamboat Creek rises. 20

PREVIOUS DISCUSSION... /Issued 251 PM PST Tue Jan 10 2017/

SYNOPSIS...
A powerful Pacific storm fueled by an atmospheric river will
continue to affect Northeast California and Western Nevada through
Wednesday. Blizzard conditions will continue in the Sierra with
periods of rain and snow across the lower elevations. Strong winds
with rain and snow will continue across western Nevada.
Additional precipitation on Thursday could bring snow down to the
Western Nevada valley floors.

SHORT TERM...

* Blizzard Conditions in the Sierra. DO NOT ATTEMPT TO TRAVEL!
* Periods of rain/snow and gusty winds for western Nevada.

.Blizzard in the Sierra...
Blizzard conditions ongoing in the Sierra with many roads closed
due to zero visibility, accidents from futile attempts at travel
and/or avalanche control. Conditions will not be improving
tonight. Bottom line, stay off the roads until after the storm
ends. Snow intensity and winds will decrease in the Sierra as the
atmospheric river dissipates by early Wednesday morning, but
conditions will remain unfavorable for travel and outdoor
activities. Snow may briefly end Wednesday night before the next
system arrives Thursday morning.

.Across western Nevada...
As the AR surges inland this evening, rain and snow will spread
across western Nevada with snow levels lowering from 6000 feet to
5000 feet. Could see some light accumulations on valley floors
around 5000 feet. Have greater confidence in 2-4 inches of wet
snow for locations near and above 5500 feet, including Virginia
City and the foothills along the west side of Reno-Carson and
along Foothill Road in Douglas County. Strong winds will decrease
as well this evening. So far gusts have remained in the 40-55 mph
with a few gusts closer to 60 mph.

.Thursday System...
This one looks more like a slider system in today's simulations,
with a cold unstable core moving out of the north Pacific. There
is quite a bit of moisture wrapping into the system, which may
develop into a rather large area of precipitation over western
Nevada. With snow levels forecast to be at 4000-4500 or lower,
there could be several inches of snow across western Nevada. In
the Sierra this system could drop another foot of snow. Brong

Long Term...Friday through Monday...

Not much change in the long term forecast. By Friday low pressure
will be moving out of the area with high pressure building in from
the west. There could be a few lingering showers in Mono/Mineral
counties as the low pressure has trended slightly slower in leaving
the region.

Friday through about Tuesday we will see a break in the
precipitation. Winds will be generally light out of the east with
moderate winds along the Sierra ridges at times as an easterly
gradient sets up. Temperatures inversions are expected to form as
warmer air moves in aloft with lighter east winds at that
surface.

Strong low pressure anomaly in the Gulf of Alaska will strengthen
the East Asian Jet allowing it to push back into California. This
will bring the storm track back into the Sierra and western Nevada.
Early indications are that precipitation could move back into the
region around next Tuesday. Current projects bring the precipitation
in while we are on the warm side of the jet with the jet stream
eventually strengthening into southern California potentially
allowing colder air to filter in later in the week. -Zach

AVIATION...
Blizzard in the Sierra with near zero visibility through 12Z
Wednesday and some improvement after, but still IFR in -SN. Several
feet of snow accumulation probable on runways, especially KTRK/KTVL
through Thursday morning. Very high confidence in +SN BLSN.

For KRNO/KCXP, gusty winds with LLWS and mtn wave turbulence to
continue through 18Z Wednesday. VFR conditions with occasional
MVFR CIGS in -RA until 00Z today then continuous MVFR thru 12Z in
RA. Improving conditions thereafter with winds lessening for Wed
night.

06-18Z Thursday, more widespread lighter snow is possible for all
locations near and south of I-80 with a few inches possible.
confidence in this event is about 60% right now.

&&

.REV Watches/Warnings/Advisories...
NV...Blizzard Warning until 10 AM PST Wednesday NVZ002.

     Winter Storm Warning from 10 AM Wednesday to 4 AM PST Thursday
     NVZ002.

     Winter Weather Advisory until 10 AM PST Wednesday above 5000
     feet in NVZ003.

CA...Winter Storm Warning until 4 AM PST Thursday CAZ071.

     Winter Storm Warning from 10 AM Wednesday to 4 AM PST Thursday
     CAZ073.

     Blizzard Warning until 10 AM PST Wednesday CAZ072-073.

     Winter Storm Warning from 10 AM Wednesday to 4 AM PST Thursday
     CAZ072.

&&

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

In the hours before

Local storm report, Jan 10, 7:20 PM PST, 4 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
720 PM PST TUE JAN 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1024 AM     NON-TSTM WND GST 5 SE MOUNT ROSE SKI ARE 39.27N 119.82W
01/10/2017  M68.00 MPH       WASHOE             NV   DEPT OF HIGHWAYS

            THE NDOT SENSOR IN WASHOE VALLEY RECORDED A WIND GUST OF
            68 MPH.

1050 AM     NON-TSTM WND GST E GALENA                39.38N 119.83W
01/10/2017  M72.00 MPH       WASHOE             NV   PARK/FOREST SRVC

            THE RAWS SENSOR AT GALENA RECORDED A WIND GUST OF 72 MPH
            AT AN ELEVATION OF 5610 FT.

1135 AM     HEAVY SNOW       5 WNW SUSANVILLE        40.43N 120.75W
01/10/2017  M24.0 INCH       LASSEN             CA   TRAINED SPOTTER

            2.5 INCHES IN THE LAST HOUR. TWO FEET OF SNOW ON THE
            GROUND.

1239 PM     NON-TSTM WND GST 3 ESE LAKE CITY         41.62N 120.16W
01/10/2017  M60.00 MPH       MODOC              CA   PARK/FOREST SRVC

            THE RAWS SENSOR IN SURPRISE VALLEY RECORDED A WIND GUST
            OF 60 MPH.

0116 PM     NON-TSTM WND GST 4 W LOVELOCK DERBY FIEL 40.06N 118.65W
01/10/2017  M61.00 MPH       PERSHING           NV   DEPT OF HIGHWAYS

            THE NDOT SENSOR AT TOULON RECORDED A WIND GUST OF 61 MPH.

0127 PM     NON-TSTM WND GST 2 SW PLEASANT VALLEY    39.33N 119.79W
01/10/2017  M62.00 MPH       WASHOE             NV   DEPT OF HIGHWAYS

            THE NDOT SENSOR AT THE GALENA BRIDGE RECORDED A WIND GUST
            OF 62 MPH.

0150 PM     NON-TSTM WND GST 2 ESE WELLINGTON        38.75N 119.34W
01/10/2017  M63.00 MPH       LYON               NV   MESONET

            A DRI SENSOR RECORDED A WIND GUST OF 63 MPH IN SMITH
            VALLEY AT AN ELEVATION OF 4885 FT.

0154 PM     NON-TSTM WND GST 4 NNW VIRGINIA CITY     39.37N 119.67W
01/10/2017  M59.00 MPH       STOREY             NV   DEPT OF HIGHWAYS

            THE NDOT SENSOR AT FIVE MILE FLAT RECORDED A WIND GUST OF
            59 MPH.

0155 PM     NON-TSTM WND GST SSW SWEETWATER SUMMIT   38.51N 119.21W
01/10/2017  M65.00 MPH       LYON               NV   DEPT OF HIGHWAYS

            AN NDOT SENSOR RECORDED A WIND GUST OF 65 MPH AT AN
            ELEVATION OF 6813 FT.

0237 PM     FLOOD            2 W HERLONG             40.14N 120.16W
01/10/2017                   LASSEN             CA   LAW ENFORCEMENT

            COUNTY ROAD A26 IS CLOSED. FLOODING HAS WEAKENED A BRIDGE
            SUPPORT.

0247 PM     NON-TSTM WND GST 15 ENE WABUSKA          39.26N 118.94W
01/10/2017  M59.00 MPH       LYON               NV   DEPT OF HIGHWAYS

            THE RAWS SENSOR AT DEAD CAMEL MOUNTAIN RECORDED A WIND
            GUST OF 59 MPH.

0429 PM     AVALANCHE        1 ENE ALPINE MEADOWS    39.18N 120.20W
01/10/2017                   PLACER             CA   FIRE DEPT/RESCUE

            UPDATED INFORMATION ON ALPINE MEADOWS AVALANCHE. NO
            INJURIES REPORTED. 12-14 HOUSES INVOLVED, SOME STRUCTURAL
            DAMAGE, BUT NO FOUNDATIONAL ISSUES FOUND.

0647 PM     NON-TSTM WND GST 5 ENE MOUNT GRANT       38.59N 118.71W
01/10/2017  M105 MPH         MINERAL            NV   DEPT OF HIGHWAYS

            THE NDOT SENSOR NEAR WALKER LAKE RECORDED A WIND GUST OF
            105 MPH. TWO SEMI-TRUCKS WERE BLOWN OVER.

&&

O'HARA

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 8:45 PM PSTAreal Flood WarningREVLyon24 hr
Jan 10, 10:03 PM PSTAreal Flood WarningREVWashoe6 hr
Jan 10, 10:38 PM PSTFlash Flood WarningREVWashoe195 days
Jan 10, 11:50 PM PSTFlash Flood WarningREVDouglas195 days
Jan 11, 1:29 AM PSTFlash Flood WarningREVStorey, Washoe4 hr
Jan 11, 2:09 PM PSTWinter Weather AdvisoryREVChurchill, Douglas, Lyon, Mineral, Pershing, Storey and 1 more32 hr

Nearby

River Flood Warnings in Nevada, 2017Every river flood warning in 2017

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.