Alert archive / Nevada / River Flood Warnings in 2017

River Flood Warning 22, NWS Reno, NV

March 1, 2017Pershing County, Nevada

NWS Reno, NV issued this river flood warning at Mar 1, 2017, 11:00 AM PST for Pershing County, Nevada. It was in force for 14 days.

The area

The outline as issued.

The facts

Issued
Mar 1, 2017, 11:00 AM PST (19:00 UTC)
Expired
Mar 15, 2017, 10:42 PM PDT
In force
14 days
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
Minor

County Pershing County, NV

The radar

The Elko radar (KLRX), 109 km from the middle of the area, began a volume at 18:57 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 Humboldt River near Imlay (HRIN2). The gauge peaked at 11.27 ft at Mar 7, 2017, 10:00 AM PST.

actionminormoderatemajor910111203/0103/0203/0303/0403/0503/0603/0703/0803/0903/1003/1103/1203/1303/1403/1503/1603/17
Action stage
9.5 ft
Minor stage
10.3 ft
Moderate stage
11.2 ft
Major stage
12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 10333000, 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.

161 
WGUS45 KREV 011900
FLWREV
 
FLOOD WARNING 
NATIONAL WEATHER SERVICE RENO, NV 
1100 AM PST WED MAR 1 2017

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

  Humboldt River Near Imlay affecting Pershing County

For the Humboldt Basin...including Imlay...

Minor flooding is occurring and is expected to continue.

Increased from earlier heavy rain and snow melt is moving into the
lower portions of the Humboldt Basin. High water is likely to
continue for an extended period of time.

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. 

&&

NVC027-061900-
/O.NEW.KREV.FL.W.0022.170301T1900Z-000000T0000Z/
/HRIN2.1.ER.170301T1445Z.170303T1800Z.000000T0000Z.UU/
1100 AM PST WED MAR 1 2017

The National Weather Service in Reno has issued a 

* Flood Warning for 
  The Humboldt River Near Imlay.
* until further notice...Or until the warning is cancelled.
* At 10:15 AM Wednesday the stage was 10.3 feet.
* Flood stage is 10.3 feet.
* Minor flooding is occurring and forecast to continue.
* Forecast...The river will continue rising to near 10.9 feet by
  early Sunday morning. Additional rises may be possible thereafter.
* Impact...Minor flooding of Tungsten Road south of the river
  between the river and the Pit Taylor Canal. Some minor low 
  land flooding is possible very near the river from the Humboldt 
  County line to Rye Patch. At a higher level access to Flying M 
  Ranch via Old Idaho Stage Road is flooded.

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
7 follow-up statements
588 
WGUS85 KREV 040023
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
423 PM PST FRI MAR 3 2017
   
...The flood warning continues for the following rivers in Nevada..
  
For the Humboldt River Near Imlay.

Minor flooding is occurring and is expected to continue.

Water from earlier rain and snow melt is moving into the
lower portions of the Humboldt River Basin. High flows are 
likely to continue into next week.

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. 

&&

NVC027-061923-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.1.ER.170301T1445Z.170305T1200Z.000000T0000Z.UU/
423 PM PST FRI MAR 3 2017

The Flood Warning continues for
  The Humboldt River Near Imlay.
* until further notice...or until the warning is cancelled.
* At  3:15 PM Friday the stage was 10.7 feet.
* Flood stage is 10.3 feet.
* Minor flooding is occurring and forecast to continue.
* Forecast...The river will remain near 10.8 feet but may fluctuate
  slightly.
* Impact...Minor flooding of Tungsten Road south of the river
  between the river and the Pit Taylor Canal. Some minor low 
  land flooding is possible near the river from the Humboldt 
  County line to Rye Patch. At higher levels...access to Flying M 
  Ranch via Old Idaho Stage Road is flooded.

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
488 
WGUS85 KREV 052344
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
344 PM PST SUN MAR 5 2017
   

...The flood warning continues for the following rivers in Nevada..
 
For the Humboldt River Near Imlay

Minor flooding is occurring and is expected to continue.

Water from earlier rain and snow melt is moving into the
lower portions of the Humboldt River Basin. High flows are 
likely to continue this week.

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. 

&&

NVC027-062344-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.1.RS.170301T1445Z.170305T2315Z.000000T0000Z.UU/
344 PM PST SUN MAR 5 2017

The Flood Warning continues for
  The Humboldt River Near Imlay.
* until further notice...or until the warning is cancelled.
* At  3:15 PM Sunday the stage was 11.0 feet.
* Flood stage is 10.3 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river will remain near 11.0 feet
* Impact...At 10.3 feet...Minor flooding of Tungsten Road south of
  the river between the river and the Pit Taylor Canal. Some minor
  low land flooding is possible very near the river from the
  Humboldt County line to Rye Patch. At higher levels, access to
  Flying M Ranch via Old Idaho Stage Road is flooded.  

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
242 
WGUS45 KREV 062308
FLWREV
 
FLOOD WARNING 
NATIONAL WEATHER SERVICE RENO, NV 
308 PM PST MON MAR 6 2017

...The flood warning continues for the following rivers in Nevada..

Humboldt River Near Imlay 

Minor to moderate flooding is occurring and is expected to continue.

Water from earlier rain and snow melt is moving into the lower
portions of the Humboldt River Basin. High flows are likely to
continue this week.

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.

&&

NVC027-112308-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.2.RS.170301T1445Z.170306T2215Z.000000T0000Z.UU/
308 PM PST MON MAR 6 2017

The Flood Warning continues for 
 The Humboldt River Near Imlay.
* until further notice.
* At  2:15 PM Monday the stage was 11.2 feet.
* Flood stage is 10.3 feet.
* Minor to Moderate flooding is occurring and will continue.
* Forecast...The river will fluctuate near 11.2 feet
* Impact...At 10.3 feet...Minor flooding of Tungsten Road south of the
  river between the river and the Pit Taylor Canal. Some minor low 
  land flooding is possible very near the river from the Humboldt 
  County line to Rye Patch. At higher levels, access to Flying M 
  Ranch via Old Idaho Stage Road is flooded.

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
572 
WGUS85 KREV 081757
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
957 AM PST WED MAR 8 2017
   

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

  Humboldt River Near Imlay affecting Pershing County

Minor to moderate flooding is occurring and is expected to continue.

Water from earlier rain and snow melt continues moving into the
lower portions of the Humboldt River Basin. High flows are likely to
continue through this week and into early next week.

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. 

&&

NVC027-131757-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.2.RS.170301T1445Z.170308T0145Z.000000T0000Z.UU/
957 AM PST WED MAR 8 2017

The Flood Warning continues for
  The Humboldt River Near Imlay.
* until further notice.
* At 9:15 AM Wednesday the stage was 11.2 feet.
* Flood stage is 10.3 feet.
* Minor to moderate flooding is occurring and will continue.
* Forecast...The river will fluctuate between 11.0 and 11.2 feet
* Impact...Minor to moderate flooding of Tungsten Road south of
  the river between the river and the Pit Taylor Canal will continue.
  Low land flooding is likely very near the river from the Humboldt 
  County line to Rye Patch. At a higher level access to Flying M 
  Ranch via Old Idaho Stage Road is flooded.

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
772 
WGUS85 KREV 102317
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
317 PM PST FRI MAR 10 2017
   

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

Humboldt River Near Imlay affecting Pershing County

Minor flooding is occurring and is expected to continue.

Run off from earlier rain and snow melt in the upper part of the
basin continues moving into the lower portions of the Humboldt River
Basin. High flows are likely to continue into late next week.

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. 

&&

NVC027-152317-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.2.RS.170301T1445Z.170308T0145Z.000000T0000Z.UU/
317 PM PST FRI MAR 10 2017

The Flood Warning continues for
  The Humboldt River Near Imlay.
* until further notice.
* At 2:15 PM Friday the stage was 10.9 feet.
* Flood stage is 10.3 feet.
* Minor flooding is occurring and forecast to continue.
* Forecast...The river will remain between 10.5 and 10.9 feet
  through the March 14th.
* Impact...Minor flooding of Tungsten Road south of the
  river between the river and the Pit Taylor Canal will continue.
  Some minor low land flooding is possible very near the river from
  the Humboldt County line to Rye Patch. 

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
168 
WGUS85 KREV 122034
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
134 PM PDT SUN MAR 12 2017
   

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

  Humboldt River Near Imlay affecting Pershing County
  
  Minor flooding is occurring and is expected to continue.

Run off from earlier rain and snow melt in the upper part of the
basin continues moving into the lower portions of the Humboldt River
Basin. Flows will gradually decrease through the week and the
river may fall below stage by the weekend.

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. 

&&

NVC027-172034-
/O.CON.KREV.FL.W.0022.000000T0000Z-000000T0000Z/
/HRIN2.2.RS.170301T1445Z.170308T0145Z.000000T0000Z.UU/
134 PM PDT SUN MAR 12 2017

The Flood Warning continues for
  The Humboldt River Near Imlay.
* until further notice.
* At 12:15 PM Sunday the stage was 10.6 feet.
* Flood stage is 10.3 feet.
* Minor flooding is occurring and forecast to continue.
* Forecast...The river will slowly fall through this week.
* Impact...Minor flooding of Tungsten Road south of the river
  between the river and the Pit Taylor Canal. Some minor low 
  land flooding is possible very near the river from the Humboldt 
  County line to Rye Patch. 

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$
406 
WGUS85 KREV 160542
FLSREV
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE RENO, NV 
1042 PM PDT WED MAR 15 2017
   

...The Flood Warning is cancelled for the following rivers in 
Nevada...
 
  Humboldt River Near Imlay affecting Pershing County
  
The lower Humboldt continues to fall, but as snowmelt accelerates
upstream later this month through the spring, higher flows are
likely 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. 

&&

NVC027-160612-
/O.CAN.KREV.FL.W.0022.000000T0000Z-170316T0542Z/
/HRIN2.2.RS.170301T1445Z.170308T0145Z.170315T1337Z.UU/
1042 PM PDT WED MAR 15 2017

The Flood Warning is cancelled for
  The Humboldt River Near Imlay.
* At 10:15 PM Wednesday the stage was 10.2 feet.
* Flood stage is 10.3 feet.
* Forecast...The river will continue to fall to near 10.1 feet by
  early Friday morning.
* Some very minor low land flooding remains possible very near the
  river from the Humboldt County line to Rye Patch, but any flooding
  of this nature is not likely to have much impact.

&&

LAT...LON 4085 11796 4065 11805 4066 11827 4071 11827 4086 11807


$$

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 Mar 1, 3:17 AM PST, 7 hours 43 minutes earlier.

Area forecast discussion, Mar 1, 3:17 AM PST, 7 hours 43 minutes before
Area Forecast Discussion
National Weather Service Reno NV
317 AM PST Wed Mar 1 2017

.SYNOPSIS...
High pressure will bring dry conditions, light winds, and a slow
warming trend through Thursday. Increasing clouds and mild
conditions are expected Friday, then a storm system will bring
gusty winds and increased chances for rain and snow this weekend.
Snow could accumulate in some lower elevations by Sunday.
Additional storm systems are possible next week.

&&

.SHORT TERM...

From today through Friday, high pressure ridge near the west
coast will keep dry conditions over the region. Cloud cover will
be limited today through Thursday, followed by increasing cirrus
Friday as the ridge becomes flatter, then shifts to the east ahead
of the next storm system arriving this weekend. Some light snow
and rain showers may reach parts of northeast CA and far northwest
NV by late Friday night as low-mid level moisture begins to
increase.

Light winds will lead to limited mixing with some valley
inversions today and Thursday, but these inversions are not
expected to be very strong. Temperatures today will warm up a few
degrees with highs around 50 in lower elevations and lower-mid
40s near the Sierra. By Thursday and Friday, most lower elevations
can expect highs in the 50s-lower 60s, with mid 40s-lower 50s
near the Sierra. Another chilly night is expected tonight, then
some moderation is expected later in the week. MJD

.LONG TERM...Saturday and beyond...

Fairly significant changes for the weekend system which has come in
stronger, wetter, and colder. Winds will begin to increase Saturday
afternoon ahead of the incoming storm, with the peak of the winds
likely to occur Saturday evening into Sunday morning in conjunction
with a strong cold front. At this point winds appear to be mainly
gradient driven, without much of a downslope component, which would
result in gusty winds area-wide. This could lead to travel impacts
for high profile vehicles in addition to turbulence and wind shear
for aviation. Choppy conditions are also likely on area lakes, so it
may be best to postpone any plans to another day.

A strong cold front will help to drive a weak atmospheric river
moisture tap in the Pacific Northwest south into northern CA/NV.
Forecast soundings are very unstable which will likely accelerate
precipitation rates, especially along the cold front. Have continued
the trend of increasing storm total precipitation totals for this
system, with the period of peak precipitation rates likely to be
in the window from Saturday evening through midday Sunday.

As the cold front pushes through the region, snow levels will crash
to most all valley floors. Latest guidance would suggest up to a
couple inches of snow accumulation possible through many valley
locations, with 6-18 inches in the central and northern Sierra.
The bulk of the moisture remains closer to the Oregon border,
therefore the southern Sierra will see lesser amounts up to 6
inches. For snow that falls midday Sunday, roads may be warm
enough to limit accumulations on roadways. The other thing to note
is that temperatures will not follow a diurnal curve Sunday, with
the overnight low fairly mild and the high occurring Sunday
morning before the cold frontal passage. Temps will fall through
the day behind the front.

Breezy and unsettled conditions to follow for the start of the work
week and possibly lasting into end of the week, however confidence
is lower for the second half of the week with greater model/ensemble
spread. The best chances for precipitation will remain in northern
CA/NV closer to the Oregon border as several shortwaves move through
the region early in the week. -Dawn

&&

.AVIATION...

Tranquil conditions with generally light winds and mainly VFR
conditions can be expected through Thursday as a ridge builds into
the west. Patchy freezing fog through the Martis Valley, including
KTRK, remains possible each morning.

Light afternoon breezes and increasing high level clouds can be
expected Friday ahead of a storm system for the weekend. This system
will bring strong and gusty winds along with rain and snow. See the
long term section for additional details. -Dawn

&&

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

&&

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

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.