Flash Flood Warning 26, NWS Elko, NV

094 
WGUS75 KLKN 022308
FFSLKN

Flash Flood Statement
National Weather Service Elko NV
408 PM PDT TUE OCT 2 2018

NVC023-030015-
/O.CON.KLKN.FF.W.0026.000000T0000Z-181003T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nye NV-
408 PM PDT TUE OCT 2 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM PDT FOR
SOUTHWESTERN NYE COUNTY...

At 407 PM PDT, Doppler radar continued to indicate thunderstorms 
producing heavy rain across the warned area. Up to one inch of rain 
has already fallen. Flash flooding is expected to continue.

Some locations that will experience flooding include...
Tonopah, Manhattan and Tonopah Airport. 

Additional rainfall amounts of one quarter of an inch are possible 
in the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3805 11722 3848 11769 3862 11746 3842 11664
      3805 11690

$$

JRM

655 
WGUS75 KLKN 030007
FFSLKN

Flash Flood Statement
National Weather Service Elko NV
507 PM PDT TUE OCT 2 2018

NVC023-030016-
/O.EXP.KLKN.FF.W.0026.000000T0000Z-181003T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nye NV-
507 PM PDT TUE OCT 2 2018

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN NYE COUNTY WILL EXPIRE AT
515 PM PDT...

Flood waters are likely receding. Flooding is no longer expected to 
pose a threat. Please continue to heed any remaining road closures.

LAT...LON 3805 11722 3848 11769 3862 11746 3842 11664
      3805 11690

$$

JRM

Area Forecast Discussion
National Weather Service Elko NV
207 PM PDT Tue Oct 2 2018

.SYNOPSIS...Tropical moisture will make its way through the
Silver State this week. Moderate to heavy rain showers are
expected to mainly affect below I-80 Nevada today. Showers will
spread across NV as a storm moves through the region from
California on Wednesday and Thursday.

&&

.SHORT TERM...Today through Wednesday. The moisture from Rosa is
making it way across the desert southwest today. Some of the
moisture has moved across central and eastern NV with more
moisture following behind it. The amount of moisture is less than
what was seen in previous forecasts but is still significant.
This moisture is coupled with instability that causing showers
and thunderstorms across much of central and eastern NV. The
rainfall can be heavy at times which will pose a flash flood
threat in steep terrain and on burn scars. Tomorrow will see the
storm system fully move into NV spreading moisture north and
westward. This will lead to greater coverage of showers and
thunderstorms across NV. However there will be less moisture
associated with the showers during the mid week with flooding
being less of a threat. This system will bring colder temperatures
that will allow for snowfall to start on the mountains especially
in northwestern NV.

.LONG TERM...Thursday night through next Tuesday.

Confidence remains moderate to high regarding the unsettled
weather pattern expected to continue into the weekend.

Northwest flow behind the exiting trough will usher in drier
conditions Friday for much of the state. However, another
significant upper-level trough with Pacific Northwest moisture
will begin to filter into northwest Nevada bringing more
widespread showers to the forecast area FRiday night into
Saturday. Models are in good agreement in bringing the trough
southeastward into the region and slowing its forward progress
Saturday. A stronger cold front will move through the state
Saturday ushering in a cooler air mass with high temperatures
Sunday in the 40s and 50s across central and eastern portions of
the state. Widespread 20s and lower 30s are possible Monday
morning. Another storm system could affect the region again around
the middle of next week bringing more valley rain and mountain
snow to much of the state.

&&

.AVIATION...Numerous showers and isolated thunderstorms will
continue into the evening hours across central and eastern Nevada.
Lowering CIGs and gusty outflow winds are the main threats with
the thunderstorms. KTPH, KELY and KEKO will see the best chance
for showers and thunderstorms. All terminals will be affected
Wednesday with widespread showers and isolated thunderstorms
across the state.

&&

.FIRE WEATHER...The arrival of moisture from a dying tropical
system interacting with another low pressure system will bring wet
weather to NV. Wetting thunderstorms are expected through the
week. The amount of rainfall may pose a flash flood threat and
debris flow threat on the burn scars. Peak rainfall potential
should be tonight through Thursday. The arrival of moisture will
bring high RH values through the week with Min RH hovering in the
40s%.

&&

.HYDROLOGY...Due to the expected moisture from a dying hurricane
Rosa this week, many regions in central and eastern NV could see
rainfall over one-half inch over the next couple of days. Locally
heavier rainfall of well over an inch is possible from
thunderstorms and orographic impacts. The mountains will bear the
brunt of the moisture and will have the greatest opportunity to
see heavy and prolonged rainfall. The amount of expected rainfall
does pose a flash flood threat over a large area of central and
eastern NV. Heavy rainfall in steep terrain can rapidly lead to a
flash flood. The most vulnerable areas will be the burn scars as
they can readily produce heavy runoff and debris flows. If a flash
flood or debris flow is seen do not drive or travel into it as it
can easily carry away people and machines.

&&

.LKN WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through late tonight for Northeastern Nye
County-Ruby Mountains/East Humboldt Range-South Central Elko
County-White Pine County.

&&

99/93/93/99

Hazardous Weather Outlook
National Weather Service Elko NV
242 AM PDT Tue Oct 2 2018

NVZ030-031-033-036>038-040-030000-
Humboldt County-Northern Elko County-Southeastern Elko County-
Northern Lander County and Northern Eureka County-
Southern Lander County and Southern Eureka County-
Southwestern Elko County-Northwestern Nye County-
242 AM PDT Tue Oct 2 2018

This hazardous weather outlook is for portions of north central
Nevada...northeast Nevada...northwest Nevada and south central
Nevada.

.DAY ONE...Today and tonight.

Remnant moisture from Hurricane Rosa will be pushing northward
through the state. While the track of the moisture plume is not
clear, it is possible to get some flash flooding in some parts of
western Nevada tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Moisture from Rosa will combine with additional moisture from a
Pacific storm system moving into the Great Basin Wednesday and
Thursday. This is a favorable setup for excessive rainfall. Recent
burn scars will be especially susceptible to flooding or debris
flow Wednesday and Thursday if the two storm systems stay on
track.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to report weather phenomena according to
standard operating procedure.

LW

Special Weather Statement
National Weather Service Elko NV
204 PM PDT TUE OCT 2 2018

NVZ034>039-022230-
Southern Lander County and Southern Eureka County-Southwest Elko
County-South Central Elko County-White Pine County-Ruby Mountains and
East Humboldt Range-Northern Lander County and Northern Eureka
County-
204 PM PDT TUE OCT 2 2018

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN WHITE
PINE...SOUTH CENTRAL ELKO AND EAST CENTRAL EUREKA COUNTIES...

At 202 PM PDT, strong thunderstorms were clustered 17 miles south of
Pine Valley, moving northeast at 25 mph.

Winds in excess of 50 mph are possible with this storm.

Locations impacted include...
Elko, Lamoille, Jiggs, South Fork, Pine Valley, Spring Creek, Lee,
Harrison Pass, Lamoille Summit, Lamoille Canyon and Emigrant Mine.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Heavy rainfall can lead to the quick formation
of flash floods and debris flows on the Range Two burn scar and in
the steep terrain. Do not drive your vehicle through flooded
roadways.

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

LAT...LON 4009 11582 4039 11621 4092 11574 4057 11518
TIME...MOT...LOC 2102Z 221DEG 22KT 4017 11606

DW