Flash Flood Warning 8, NWS Elko, NV

750 
WGUS75 KLKN 102336
FFSLKN

Flash Flood Statement
National Weather Service Elko NV
436 PM PDT Wed Aug 10 2022

NVC015-102346-
/O.CAN.KLKN.FF.W.0008.000000T0000Z-220810T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lander NV-
436 PM PDT Wed Aug 10 2022

...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL LANDER COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1100 PM PDT Wednesday for 
portions of eastern Nevada, north central Nevada, northeast Nevada 
and south central Nevada.

LAT...LON 4051 11707 4043 11686 4020 11706 4027 11720
      4027 11721

$$

96

Area Forecast Discussion
National Weather Service Elko NV
1259 PM PDT Wed Aug 10 2022

.SYNOPSIS...Monsoon moisture continues across most of the silver
state to the weekend causing wet showers and thunderstorms. The
moisture today is extremely high with flash flooding remaining a
threat. The exception is NW NV including Humboldt county which is
on the periphery of the monsoon and shouldn't see much activity.

&&

.SHORT TERM...Today through Friday.

A plume of exceptionally deep monsoonal moisture resides across
eastern NV today causing continued showers and thunderstorms.
Increasing instability through the day will see the thunderstorms
activity start in earnest around noon and then ramp up through the
afternoon. Heavy rainfall is expected which can lead to flash
flooding, see the hydrology for further details. The overall
dynamics are such that stronger storms are possible which can
produce both hail and strong outflow winds. The monsoon will
continue for both Thursday and Friday but will have both less
moisture and instability except for White Pine county. For all
areas but White Pine county this means less showers and
thunderstorms and less heavy rainfall both of which will be
confined further eastward in NV. While the chance of heavy is
lower it is not gone so flooding will still remain a threat. With
the weaker instability and forcing the chance for stronger
thunderstorms will be diminished but not zero. White Pine should
see similar activity Thursday as to today with flooding and
stronger storms remaining a threat. Temperatures will be on the
rise, however highs will stay in the 80s and 90s and lows in the
50s and 60s.

.LONG TERM...Friday night through next Wednesday

The summer ridge looks to continue to be positioned in such a way
as to keep streaming subtropical moisture into Nevada through at
least the weekend. PWATs do calm down from the very high
anomalous values of the past couple of weeks though. They look
high enough, though, to initiate mainly wet storms in very
eastern Nevada, but elsewhere a wet/dry mix looks to be on tap.

Starting next week, there are indications that the ridge will
begin moving westward some, possibly with its axis over Nevada by
Tuesday. There still looks like there will be enough moisture for
afternoon convection, however, more towards the drier variety.
However, model/ensemble forecast temperatures do not appear to
increase as would be expected with high pressure over the state,
so confidence is not high at this time for this scenario.

For now, highs were kept to remain a bit below normal, in the
80's to lower 90's, except for Humboldt County which will reach
into the lower to middle 90's each day. Lows will be in the 50's
to lower 60's. Winds will stay seasonally on the lighter side
outside of convection.

&&

.AVIATION...Showers and thunderstorms are expected today across
the region except for KTPH, which looks to be dry with southerly
winds gusting to around 25 kts. All remaining sites could see
rain, lightning, and gusty outflow winds to around 45kts. Moderate
to heavy rain is expected with the stronger storms bringing
possible tempo MVFR VIS. Best chance for this occurring is at
KEKO, KELY, and KBAM. Convection will be decreasing with the
sunset.

&&

.FIRE WEATHER...Monsoon moisture is present across the silver
state causing high humidity, showers, and thunderstorms. This
coupled with previous rainfall will dampen the fire weather
threat for the next few days for most zones. Heavy rainfall and
flash flooding is possible today across eastern Nevada including
the Wildcat, Goshute, and Becky Peak burn scars. Fire weather
zones 437 and 424 will be on the edge of the moisture and will dry
out through the weekend.

&&

.HYDROLOGY...An abnormally strong monsoon moisture plume will
continue to allow for the development of showers and thunderstorms
across much of central and eastern Nevada today. Atmospheric
moisture remains very high today with precipitable water values
of 1" to 1.25" or greater. For context this places the moisture
near or even exceeding record levels. Overall instability will
remain sufficient for afternoon thunderstorms capable of heavy
rain that can lead to flash flooding. The monsoon will continue
for Thursday for pretty much the same area, however the amount of
moisture will be less for all areas but White Pine county. This
confines most of the flood threat to White Pine county, but other
areas could still see some flooding just not near as likely as
today.

The amount of rain needed to cause flooding will be lower in
areas of high runoff such as canyons, rocky areas, burn scars, and
areas which have received recent heavy rainfall. Flash flooding
in creek beds or normally dry arroyos can occur far from the
source as water flows downstream. If flooding is encountered TURN
AROUND AND DON'T DROWN. Flood waters can easily destroy roads and
sweep away both people and vehicles. Flood waters can hide
dangerous debris such a logs and boulders. Report flooding to
local police or fire when it is safe to do so. Flood Watches
remain in effect for northeastern Nye, Lander, Eureka, White Pine
and Elko counties through this evening.

&&

.LKN WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 11 PM PDT this evening for Northeastern Nye
County-Northern Elko County-Northern Lander County and Northern
Eureka County-Ruby Mountains and East Humboldt Range-South
Central Elko County-Southeastern Elko County-Southern Lander
County and Southern Eureka County-Southwest Elko County-White
Pine County.

Flood Watch from Thursday morning through Thursday evening for
White Pine County.

&&

99/90/90/99

Special Weather Statement
National Weather Service Elko NV
234 PM PDT Wed Aug 10 2022

NVZ036-102200-
Northern Lander County and Northern Eureka County NV-
234 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of northern Lander
County through 300 PM PDT...

At 234 PM PDT, Doppler radar was tracking a strong thunderstorm 25
miles south of Battle Mountain. This storm was nearly stationary.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of northern Lander
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4024 11700 4024 11710 4040 11717 4040 11691
TIME...MOT...LOC 2134Z 176DEG 3KT 4029 11705

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

99

Special Weather Statement
National Weather Service Elko NV
245 PM PDT Wed Aug 10 2022

NVZ036-038-102215-
Southwest Elko County NV-
Northern Lander County and Northern Eureka County NV-
245 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of south central Elko
and northeastern Eureka Counties through 315 PM PDT...

At 245 PM PDT, Doppler radar was tracking a strong thunderstorm near
Pine Valley, moving northeast at 5 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pine Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4024 11614 4038 11619 4052 11595 4033 11587
TIME...MOT...LOC 2145Z 205DEG 6KT 4033 11610

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

99

Special Weather Statement
National Weather Service Elko NV
300 PM PDT Wed Aug 10 2022

NVZ036-102230-
Northern Lander County and Northern Eureka County NV-
300 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of central Lander
County through 330 PM PDT...

At 300 PM PDT, Doppler radar was tracking a strong thunderstorm 21
miles south of Battle Mountain, moving north at 5 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of central Lander
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4029 11698 4027 11712 4045 11723 4049 11691
TIME...MOT...LOC 2200Z 169DEG 6KT 4035 11706

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

99

Special Weather Statement
National Weather Service Elko NV
301 PM PDT Wed Aug 10 2022

NVZ038-102230-
Southwest Elko County NV-
301 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of southwestern Elko
County through 330 PM PDT...

At 301 PM PDT, Doppler radar was tracking a strong thunderstorm 7
miles west of South Fork, moving northeast at 5 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of southwestern Elko
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4067 11589 4073 11593 4080 11582 4070 11573
TIME...MOT...LOC 2201Z 241DEG 6KT 4070 11588

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

99

Special Weather Statement
National Weather Service Elko NV
303 PM PDT Wed Aug 10 2022

NVZ037-040-041-102230-
Northwestern Nye County NV-
Southern Lander County and Southern Eureka County NV-
Northeastern Nye County NV-
303 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of north central Nye
and south central Eureka Counties through 330 PM PDT...

At 302 PM PDT, Doppler radar was tracking a strong thunderstorm 31
miles southeast of Hickison Summit, moving north at 25 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Brief heavy rainfall along with gusty winds could knock
         down tree limbs and blow around unsecured objects. Minor
         damage to outdoor objects is possible.

This storm will remain over mainly rural areas of north central Nye
and south central Eureka Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3889 11637 3893 11660 3926 11655 3920 11620
TIME...MOT...LOC 2202Z 191DEG 21KT 3903 11646

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

98

Special Weather Statement
National Weather Service Elko NV
308 PM PDT Wed Aug 10 2022

NVZ038-102245-
Southwest Elko County NV-
308 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of south central Elko
County through 345 PM PDT...

At 308 PM PDT, Doppler radar was tracking a strong thunderstorm 11
miles west of Jiggs, moving east at 10 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of south central Elko
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4029 11591 4046 11600 4059 11577 4033 11564
TIME...MOT...LOC 2208Z 254DEG 10KT 4044 11588

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

99