Severe Thunderstorm Warning 17, NWS Las Vegas, NV

874 
WWUS55 KVEF 190024
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
524 PM MST WED JUL 18 2018

AZC015-190100-
/O.CON.KVEF.SV.W.0017.000000T0000Z-180719T0100Z/
Mohave AZ-
524 PM MST WED JUL 18 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MST
FOR SOUTH CENTRAL MOHAVE COUNTY...

At 522 PM MST, a severe thunderstorm was located near Blake Ranch 
Road, or 16 miles east of Kingman, and is nearly stationary.  The 
public has reported quarter sized hail on I-40 near mile marker 66. 
Hail up to golf ball sized may be possible. 

HAZARD...Gold Ball size hail.

SOURCE...Public.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Blake Ranch Road and Dw Ranch Road. 

This includes Interstate 40 in Arizona between mile markers 60 and
82.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 3484 11378 3520 11391 3537 11377 3534 11353
      3482 11348
TIME...MOT...LOC 0022Z 319DEG 3KT 3518 11374 

HAIL...1.00IN
WIND...<50MPH
 
$$

Outler

317 
WWUS55 KVEF 190051
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
551 PM MST WED JUL 18 2018

AZC015-190100-
/O.EXP.KVEF.SV.W.0017.000000T0000Z-180719T0100Z/
Mohave AZ-
551 PM MST WED JUL 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MOHAVE COUNTY
WILL EXPIRE AT 600 PM MST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

LAT...LON 3484 11378 3520 11391 3537 11377 3534 11353
      3482 11348
TIME...MOT...LOC 0050Z 319DEG 3KT 3516 11372 

$$

Outler

Area Forecast Discussion
National Weather Service Las Vegas NV
225 PM PDT Wed Jul 18 2018

.SYNOPSIS...Moist and unstable air will remain over the region
through the end of the week providing fuel for afternoon
thunderstorms... especially over the mountains. Early next week, a
heatwave will be building with very hot temperatures expected.
&&

.SHORT TERM...through Saturday.

Thunderstorms in the forecast area have been confined to the Spring
Mountains and central Nevada early this afternoon. Elsewhere,
convection has been slow to develop in spite of Pwat values over 1.5
inches from Clark County southward and CAPE Values of 1500-2000
J/kg. Deep easterly steering flow behind the inverted trough moving
across southern California will bring storms that develop over the
Mogollon Rim into at least Mohave County...and possibly the Colorado
River Valley and southern Clark County this evening. Conditions are
less favorable for any storms that develop over Lincoln/northern
Mohave counties to head into northeast or central Clark County this
evening, but it cannot be completely ruled out as cold pools and
outflow boundaries begin to influence convection late this afternoon
and evening. So, will leave a slight chance of thunderstorms
mentioned in the forecast. The HRRR has been indicating the storms
will mainly be confined to Mohave County this evening.

The ridge centered over central California and the Great Basin is
forecast to migrate over the Four Corners Region Thursday and toward
the Texas Panhandle Friday and Saturday. This will lead to lower
temperatures across Inyo County and central Nevada...diminishing
heat impacts going into the weekend. Also, steering flow will become
southerly for any convection that gets going Thursday into the
weekend. This will shut down the potential for late evening storms
to move into southern Nevada from the northeast like we have seen a
few times over the past week. Moist and unstable air already in
place will not be flushing out, but we should see a slight decrease
in thunderstorm development from west to east the next few days over
southeast California and southern Nevada. Temperatures will hover
near normal.

.LONG TERM...Sunday through Wednesday.

Strong ridge to our east progged to shift westward over Arizona
early next week. Lingering moisture combined with daytime heating
will still allow for thunderstorms to develop mainly along higher
terrain through the weekend. The westward propagation of the high
will increase temps and continue to keep thunderstorms chances
mainly focused over the higher terrain. In the coming days, likely
need to start considering an Excessive Heat Watch for Tuesday and
beyond.
&&

.AVIATION...For McCarran...Outside of convective influence, expect
generally light winds below 10 knots favoring an east-southeast
direction turning to the south-southwest this evening. Thunderstorms
will continue to be possible on the surrounding higher terrain, but
the probability thunderstorms and associated outflow affecting the
terminal is low. CIGs should remain above 10k feet.

For the rest of southern Nevada, northwest Arizona and southeast
California...Outside of thunderstorm influences, winds will follow
diurnal trends with speeds of 5-15 knots. CIGs at or above 10k feet
in general but CIGs may drop to 5-7 k feet in shower and storms.
Isolated to scattered thunderstorms through this evening will
produce gusty and erratic outflow winds. Although, most of the
thunderstorm activity should remain over the higher terrain, it is
possible storms will move into the valleys.
&&

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

SHORT TERM...Adair
LONG TERM...Pierce
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...SUMMARY
NATIONAL WEATHER SERVICE LAS VEGAS NV
1201 PM PDT WED JUL 18 2018

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

1235 AM     TSTM WND GST     1 NNE DESERT HILLS      34.57N 114.36W
07/18/2018  M60 MPH          MOHAVE             AZ   ASOS

            LAKE HAVASU CITY ASOS RECORDED A WIND GUST
            OF 60 MPH AT 12:35 AM.

1120 PM     FLASH FLOOD      2 ESE LOGANDALE         36.58N 114.45W
07/17/2018                   CLARK              NV   FIRE DEPT/RESCUE

            CLARK COUNTY FIRE DEPT REPORTED DEBRIS AND
            WATER OVER THE ROAD AT SEVERAL LOCATIONS IN
            OVERTON INCLUDING RON ROAD AT AIRPORT ROAD.

1113 PM     FLASH FLOOD      1 E LOGANDALE           36.60N 114.46W
07/17/2018                   CLARK              NV   FIRE DEPT/RESCUE

            CLARK COUNTY FIRE DEPT REPORTED 12 INCHES OF
            MUD AND DEBRIS OVER THE ROADWAY AND WAS NOT
            PASSABLE FOR LOW VEHICLES.

1050 PM     FLASH FLOOD      1 ESE OVERTON           36.54N 114.43W
07/17/2018                   CLARK              NV   FIRE DEPT/RESCUE

            CLARK COUNTY FIRE DEPT REPORTED THAT THE
            MUDDY RIVER WENT OVER ITS BANKS AND WAS
            FLOWING APPROXIMATELY 8 INCHES OVER THE
            ROADWAY.

1024 PM     TSTM WND DMG     1 E OVERTON             36.54N 114.42W
07/17/2018                   CLARK              NV   FIRE DEPT/RESCUE

            CLARK COUNTY FIRE DEPT REPORTED THAT STRONG
            WINDS HAD DAMAGED A POWER POLE WHICH WAS
            LEANING AT A 30 DEGREE ANGLE. THIS CAUSED
            POWER TO GO OUT IN THE IMMEDIATE AREA.

1009 PM     TSTM WND GST     NELLIS AFB              36.24N 115.03W
07/17/2018  M60 MPH          CLARK              NV   ASOS

            NELLIS AFB ASOS RECORDED A WIND GUST OF 60
            MPH.

0733 PM     TSTM WND GST     27 SSE LITTLEFIELD      36.51N 113.82W
07/17/2018  M60 MPH          MOHAVE             AZ   MESONET

            OLAF KNOLLS RAWS AT 2900 FT RECORDED A
            THUNDERSTORM WIND GUST OF 60 MPH AT 7:33 PM.

0733 PM     TSTM WND GST     24 SSE LITTLEFIELD      36.59N 113.73W
07/17/2018  M61 MPH          MOHAVE             AZ   PUBLIC

            TWEEDS POINT RAWS AT AN ELEVATION OF 5200 FT
            RECORDED A WIND GUST OF 61 MPH.

0413 PM     FLASH FLOOD      6 N HUALAPAI PEAK       35.17N 113.89W
07/17/2018                   MOHAVE             AZ   DEPT OF HIGHWAYS

            CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 6
            N HUALAPAI PEAK. MOHAVE COUNTY PUBLIC WORKS
            REPORTED DW RANCH ROAD CLOSED DUE TO
            FLOODING BETWEEN MILE MARKERS 3 AND 5. ROAD
            REOPENED 5:54 PM 7/17.

0336 PM     DUST STORM       4 E NEW KINGMAN-BUTLER  35.26N 113.95W
07/17/2018                   MOHAVE             AZ   ASOS

            KINGMAN ASOS REPORTED VISIBILITY OF A
            QUARTER MILE IN BLOWING DUST. WINDS AT THE
            TIME WERE SUSTAINED 39 WITH GUSTS TO 49 MPH.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
452 PM PDT WED JUL 18 2018

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

0442 PM     FLASH FLOOD      6 N HUALAPAI PEAK       35.16N 113.89W
07/18/2018                   MOHAVE             AZ   FIRE DEPT/RESCUE

            DW RANCH ROAD CLOSED DUE TO FLOODING BETWEEN
            MILE MARKERS 1 AND 5.

&&

JV