Flash Flood Warning 9, NWS Elko, NV

290 
WGUS75 KLKN 110350
FFSLKN

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

NVC007-110400-
/O.CAN.KLKN.FF.W.0009.000000T0000Z-220811T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Elko NV-
850 PM PDT Wed Aug 10 2022

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN ELKO COUNTY...

Lamoille Canyon road has been cleared of debris and is now open. No 
additional impacts from rains earlier this evening are expected.

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

LAT...LON 4075 11533 4061 11535 4059 11540 4060 11545
      4065 11547 4071 11546

$$

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
459 PM PDT Wed Aug 10 2022

NVZ030-110030-
Humboldt County NV-
459 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of east central
Humboldt County through 530 PM PDT...

At 457 PM PDT, Doppler radar was tracking a cluster of strong
thunderstorms 16 miles north of Golconda, moving northeast at 15 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...
Twin Creeks Mine and Adam Peak.

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 4098 11730 4107 11744 4108 11765 4141 11755
      4129 11702
TIME...MOT...LOC 2357Z 206DEG 27KT 4117 11738

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

91

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

NVZ037-110100-
Southern Lander County and Southern Eureka County NV-
523 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of central Lander
County through 600 PM PDT...

At 523 PM PDT, Doppler radar was tracking a strong thunderstorm 17
miles north of New Pass Summit. 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 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 3978 11749 3981 11748 3983 11749 3986 11746
      3991 11747 3997 11723 3974 11729 3970 11747
      3977 11750
TIME...MOT...LOC 0023Z 134DEG 2KT 3979 11741

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

91

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

NVZ030-031-110100-
Northern Elko County NV-Humboldt County NV-
533 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of east central
Humboldt and western Elko Counties through 600 PM PDT...

At 531 PM PDT, Doppler radar was tracking a strong thunderstorm 20
miles northeast of Golconda, moving northeast 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.

Locations impacted include...
Twin Creeks Mine and Adam Peak.

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 4106 11721 4116 11734 4136 11728 4118 11691
TIME...MOT...LOC 0031Z 221DEG 17KT 4116 11721

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

91

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

NVZ035-037-041-110130-
Southern Lander County and Southern Eureka County NV-
Northeastern Nye County NV-White Pine County NV-
541 PM PDT Wed Aug 10 2022

...Strong thunderstorms will impact portions of north central Nye,
west central White Pine and southeastern Eureka Counties through 630
PM PDT...

At 541 PM PDT, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles south of Pinto Summit to 33 miles west
of Duckwater. Movement was northeast at 10 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.

Locations impacted include...
Eureka, Pinto Summit, Little Fish Lake Valley and Pancake Summit.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3945 11544 3862 11622 3876 11658 3954 11601
TIME...MOT...LOC 0041Z 234DEG 9KT 3924 11590 3881 11632

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

96

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

NVZ030-110130-
Humboldt County NV-
545 PM PDT Wed Aug 10 2022

...Strong thunderstorms will impact portions of northeastern Humboldt
County through 630 PM PDT...

At 545 PM PDT, Doppler radar was tracking strong thunderstorms along
a line extending from 25 miles southeast of McDermitt to 7 miles
southwest of Paradise Valley. Movement was northeast at 25 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...
Paradise Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4175 11703 4135 11761 4148 11780 4198 11745
TIME...MOT...LOC 0045Z 210DEG 21KT 4183 11727 4145 11765

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

96

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

NVZ030-031-110145-
Northern Elko County NV-Humboldt County NV-
609 PM PDT Wed Aug 10 2022

...A strong thunderstorm will impact portions of eastern Humboldt and
western Elko Counties through 645 PM PDT...

At 609 PM PDT, Doppler radar was tracking a strong thunderstorm 12
miles southwest of Midas, 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 eastern Humboldt
and western Elko Counties.

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 4112 11706 4122 11709 4130 11696 4114 11684
TIME...MOT...LOC 0109Z 249DEG 9KT 4117 11703

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

91