Flash Flood Warning 20, NWS Las Vegas, NV

078 
WGUS75 KVEF 232309
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
409 PM PDT Sun Aug 23 2020

NVC023-240115-
/O.CON.KVEF.FF.W.0020.000000T0000Z-200824T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nye NV-
409 PM PDT Sun Aug 23 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM PDT THIS 
EVENING FOR EAST CENTRAL NYE COUNTY...

At 409 PM PDT, Doppler radar indicated thunderstorms continuing over 
the Nevada National Security Site. One gauge on the site had 
recorded 1.79 inches of rain so far. Flash flooding is likely.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Doppler radar.

IMPACT...Life threatening flash flooding of creeks, streams,
         washes, and streets.

Some locations that will experience flash flooding include...
  The Nevada National Security Site

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3735 11653 3675 11644 3678 11591 3736 11592

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CM

232 
WGUS75 KVEF 240011
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
511 PM PDT Sun Aug 23 2020

NVC023-240115-
/O.CON.KVEF.FF.W.0020.000000T0000Z-200824T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nye NV-
511 PM PDT Sun Aug 23 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM PDT THIS 
EVENING FOR EAST CENTRAL NYE COUNTY...

At 511 PM PDT, Doppler radar indicated thunderstorms were 
diminishing across the Nevada National Security Site. Radar 
estimated total rainfall amounts between 1 and 2 inches across the 
warned area. Flash flooding is likely ongoing.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Doppler radar.

IMPACT...Life threatening flash flooding of washes and secondary
         roads.

Some locations that will experience flash flooding include...
  The Nevada National Security Site

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3735 11653 3675 11644 3678 11591 3736 11592

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

JA

711 
WGUS75 KVEF 240113
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
613 PM PDT Sun Aug 23 2020

NVC023-240123-
/O.EXP.KVEF.FF.W.0020.000000T0000Z-200824T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Nye NV-
613 PM PDT Sun Aug 23 2020

...FLASH FLOOD WARNING WILL EXPIRE AT 615 PM PDT THIS EVENING FOR 
EAST CENTRAL NYE COUNTY...

Flood waters have likely receded around the National Security Site. 
Flooding is no longer expected to pose a threat.

LAT...LON 3735 11653 3675 11644 3678 11591 3736 11592

$$

JA

Area Forecast Discussion
National Weather Service Las Vegas NV
125 PM PDT Sun Aug 23 2020

.SYNOPSIS...Most thunderstorms will dissipate around sunset this
evening. Drier air will push in from the southwest late Monday into
Tuesday, with thunderstorm chances diminishing. Sunny and hot
weather can be expected for most of the region through the upcoming
week.
&&

.DISCUSSION...As forecast by previous shift, thunderstorms have
fired off earlier today, so will have to be brief here. Northeast
half or so of our CWA will be favored for storm development the rest
of the afternoon. Drier and more stable air starts to move in
tomorrow, resulting in fewer storms. A sizable majority of the
region will see dry, sunny, and hot weather for much of the upcoming
week. Excessive Heat Warning looks good and will let it ride. Don't
want to get hopes up too high, but there are some hints that the
heat wave may break in about seven days. Not expecting fall like
temperatures, but highs around 100 with low dewpoints would bring
some degree of relief from the recent conditions.
&&

.AVIATION...For McCarran...Another round of storms this afternoon
could bring TSRA impacts to the airfield. A tempo group was added to
the 18z TAF based on multiple model sources showing strong winds
moving across the airfield from various directions through 01z.
There remains some potential for gusty southeast winds after 01z
before becoming light and variable by midnight. Lower storm chances
on Monday with a slight chance of t-storms primarily tied to the
mountains.

For the rest of southern Nevada, northwest Arizona and southeast
California...Isolated to scattered TSRA across the region this
afternoon with possible outflow wind impacts at KVGT/KHND/KBIH.
Elsewhere at KDAG/KIGM/KEED, no impacts are forecast for today but
can't completely rule out outflow eventually making it to these
sites later today. Less storm coverage on Monday but there remains
some potential for gusty outflow winds.
&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&

Discussion...Morgan
Aviation...Salmen

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