Flash Flood Warning 52, NWS Las Vegas, NV

883 
WGUS75 KVEF 240912
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
212 AM PDT Tue Sep 24 2019

CAC071-241000-
/O.CON.KVEF.FF.W.0052.000000T0000Z-190924T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
212 AM PDT Tue Sep 24 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 AM PDT FOR
SOUTHEASTERN SAN BERNARDINO COUNTY...

Heavy rain has ended across the warned area. Despite heavy rainfall 
ending, lower spots along along Highway 62 and Highway 95 may still 
be experiencing flooding. 

Some locations that may have experienced flooding include...
Big River, Earp and Vidal Junction. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3422 11470 3431 11430 3421 11421 3417 11425
      3417 11429 3414 11432 3413 11435 3412 11437
      3411 11441 3408 11444 3408 11467

$$

Boothe

144 
WGUS75 KVEF 240950
FFSVEF

Flash Flood Statement
National Weather Service Las Vegas NV
250 AM PDT Tue Sep 24 2019

CAC071-241000-
/O.EXP.KVEF.FF.W.0052.000000T0000Z-190924T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
250 AM PDT Tue Sep 24 2019

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN SAN BERNARDINO COUNTY
WILL EXPIRE AT 300 AM PDT...

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

LAT...LON 3422 11470 3431 11430 3421 11421 3417 11425
      3417 11429 3414 11432 3413 11435 3412 11437
      3411 11441 3408 11444 3408 11467

$$

Boothe

Area Forecast Discussion
National Weather Service Las Vegas NV
804 PM PDT Mon Sep 23 2019

.SYNOPSIS...A vigorous low pressure system that has brought
showers and thunderstorms to northwest Arizona will continue
sagging south tonight. With the moisture also retreating
southward, shower and storm chances decrease overnight into
Tuesday morning. As the low stalls out south of the area, expect
dry northeast breezes for the middle of the week, then shower and
thunderstorm chances wrapping back into the region late Wednesday
into Thursday. Another potent trough will begin impacting the
region by the weekend with increasing southwesterly winds and
precipitation chances for the southern Great Basin.
&&

.UPDATE...Severe Thunderstorm Watch no longer in effect for Mohave
County, however heavy rainfall associated with ongoing thunderstorms
still a concern. So, Flash Flood Watch continues.

Persistent area of storms over southern Clark County finally look to
be on the decrease. As upper low continues to drop south the rest of
tonight expect isolated/scattered thunderstorms will continue across
eastern San Bernardino County/southern Mohave County through about 2
am Friday.

&&

.DISCUSSION...through Sunday.

High resolution models generally on track, though timing seems to
be a few hours earlier than anticipated thus far. Tropical
moisture from the former tropical system Lorena has advected
northward over Arizona, while a potent upper-level trough digs
down through the region and closes off. This has resulted in the
expected severe thunderstorm and flash flood threat over Mohave
county and adjacent areas.

Through tonight, the stronger storms are expected to wane, as the
loss of daytime heating and already generated cold pools act to
stabilize the atmosphere. However, cold air moving in aloft will
continue to steepen mid-level lapse rates, and forcing for ascent
will continue to increase through the evening, both of which will
likely keep at least some activity going till about midnight.

As the upper-level low closes off and drifts slowly southward
tomorrow, retreating moisture should end shower and thunderstorm
chances for a day or two, and result in east to northeast breezes
across the area with moderating temperatures. The low begins to
drift back northward Wednesday and Thursday, wrapping
precipitation chances back into the region late Wednesday and
Thursday. By Friday, this low will get kicked out of the region by
a deeper trough digging into the western US, which will begin
impacting the region on Friday.
&&

.FIRE WEATHER...Showers and storms will end for the region
tonight as a low pressure system sinks south of the area and
stalls. Generally northeasterly breezes can be expected for the
middle of the week, with moisture retreating to the south. The
previously mentioned low will wobble back northward Wednesday into
Thursday, wrapping moisture and precipitation chances back around
into the region. Another potent low pressure system begins
impacting the region over the weekend with increasing southwest
winds.
&&

.AVIATION...For McCarran...Southwest winds should prevail with a
cold front approaching from the north unless thunderstorm outflow
winds make it into the valley as suggested by output from some of
the most recent hires model runs. For sky cover, scattered clouds
around 10k feet with broken clouds AOA 15k feet are expected. Winds
could favor a southeast direction through much of the evening before
the front turns them to the north but confidence is lower.

For the rest of southern Nevada, northwest Arizona and southeast
California...T-storms will remain focused across the lower Colorado
River Valley and NW Arizona areas but possible anywhere south of the
I-15 in Clark and eastern San Bernardino counties. CIGs dropping to
5-7 kft, strong winds and hail will be possible with some storms.
Storm activity will wane mid to late evening. Generally, north winds
around 7-12 kts along with scattered CIGs at or above 10kft are
expected overnight.
&&

.SPOTTER INFORMATION STATEMENT...A Flash Flood Watch is in
remains in effect for portions of Mohave county along with a
Severe Thunderstorm Watch through this evening. Spotter activation
for Mohave county is requested for flooding, wind damage, and hail
size reports needed. Elsewhere in nearby southern Nevada and
southeast California, spotters are encouraged to report any
significant weather or impacts according to standard operating
procedures.
&&

UPDATE...Pierce

DISCUSSION...Steele
AVIATION.....Salmen

For more forecast information...see us on our webpage:

http://weather.gov/lasvegas or follow us on Facebook and Twitter

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
830 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0408 PM     TSTM WND DMG     3 N MOHAVE VALLEY       34.97N 114.58W
09/23/2019                   MOHAVE             AZ   NEWSPAPER

            POWER POLE BLOWN DOWN NEAR BOUNDARY CONE RD
            AND MOUNTAIN VIEW RD. THIS CAUSED LOSS OF
            POWER TO APPROXIMATELY 3700 MEMBERS.

&&

BP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
838 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     FLASH FLOOD      13 NE DOLAN SPRINGS     35.73N 114.12W
09/23/2019                   MOHAVE             AZ   DEPT OF HIGHWAYS

            SIX INCHES OF WATER ALONG WITH DEBRIS
            CROSSING STOCKTON HILL RD AT ARCHIBALD WASH
            CROSSING.

&&

BP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
917 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0615 PM     HAIL             2 N SEARCHLIGHT         35.49N 114.92W
09/23/2019  E1.75 INCH       CLARK              NV   PUBLIC

            ESTIMATED GOLF BALL SIZED HAIL REPORTED BY
            GENTLEMAN DRIVING THROUGH STORM NORTH OF
            SEARCHLIGHT ON HIGHWAY 95. TIME ESTIMATED
            FROM RADAR.

&&

BP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
944 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     FLASH FLOOD      3 N MOHAVE VALLEY       34.97N 114.58W
09/23/2019                   MOHAVE             AZ   EMERGENCY MNGR

            MOHAVE COUNTY EMERGENCY MANAGEMENT REPORTED
            BOUNDARY CONE RD CLOSED WITH CREWS OUT
            CLEANING DEBRIS.

&&

BP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
950 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0920 PM     FLASH FLOOD      5 NNW TOPOCK            34.84N 114.51W
09/23/2019                   MOHAVE             AZ   DEPT OF HIGHWAYS

            MOHAVE COUNTY ROADS REPORTED COUNTY ROUTE 1
            CLOSED FROM MP 0 TO MP 7.

0920 PM     FLASH FLOOD      8 SSW OATMAN            34.91N 114.43W
09/23/2019                   MOHAVE             AZ   DEPT OF HIGHWAYS

            MOHAVE COUNTY ROADS REPORTED ROUTE 66 CLOSED
            FROM MP 6 TO E BOUNDARY CONE RD.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1003 PM PDT MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     FLASH FLOOD      4 ESE MOHAVE VALLEY     34.91N 114.53W
09/23/2019                   MOHAVE             AZ   PUBLIC

            PUBLIC REPORTED FLASH FLOODING ACROSS WILLOW
            DR, EAST OF WILLOW VALLEY.

&&

BP