Severe weather and flash flooding which began on June 27th with the first monsoon moisture push of the season continued through July 2nd.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS VEF wrote it up.
Severe weather and flash flooding which began on June 27th with the first monsoon moisture push of the season continued through July 2nd.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Las Vegas, NV wrote its last area forecast discussion before the first event at Jul 1, 3:22 AM MST, 38 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 322 AM PDT FRI JUL 1 2016 .SYNOPSIS...Monsoonal moisture that has spread up from northern Mexico will fuel thunderstorms across the Mojave Desert region...especially during the afternoon and evening hours through Saturday. Temperatures will trend downward due to the increase in cloud cover. Drier air is expected to work into the region early next week pushing monsoonal moisture east of the area. This will also allow for a warming trend with temperatures about 3 to 5 degrees above normal by Monday. && .SHORT TERM...through Sunday night. Fairly active night across Inyo, southern Nye, Clark and eastern San Bernardino Counties as an extensive area of showers and thunderstorms continues to move southeast across the area. As of 230 AM the strongest storms are pushing through eastern San Bernardino and southern Clark Counties with mainly light to moderate showers extending northwest into southern Nye County. With plenty of instability still to work with these storms are expected to continue track southeast over the next few hours affecting areas along the Colorado River Valley. Most of the rainfall is expected to end in the Las Vegas Valley by morning commute, however some light showers are still possible. Plenty of moisture still available today as PW values still remain between 1.25" and 1.75" across Mohave, Clark, San Bernardino, southern Nye counties with around an inch through Lincoln and eastern Inyo Counties. Dewpoints have generally been in the 60s this morning with Needles sitting at 71 degrees. Models continue to indicate plenty of instability with LI's ranging from -2/-5 and forecasted CAPE values ranging from 1000-1500 J/KG by this afternoon. Areas that start out with plenty of sunshine should see storms developing by late morning, but extensive cloud cover over Clark, Lincoln, and northern Mohave Counties could delay the onset of storm development until late afternoon. Flash flooding will certainly be a concern with any storm, but gusty winds and hail are also a possibility. Storms are likely to continue into this evening and could go much of the night over the far eastern areas. Little change in moisture and instability parameters on Saturday, although we start to see a bit more stable and drier air working into the far western portions of the cwa. Still, scattered showers and thunderstorms will be a possibility for much of the area. By Saturday night, we start to see even more stable air pushing into the western cwa and by Sunday most of the thunderstorm activity should be limited to the far eastern areas of the cwa including Lincoln and northern Mohave Counties. Temperatures will likely be held to below normal readings today and Saturday due to the moisture and clouds, but will start to rebound Sunday as the drier air works into the region. .LONG TERM...Monday through Thursday. Main concern this morning is in the immediate term with thunderstorms ongoing, so made very little change to the long term period. Still looks dry Monday through at least Thursday, except on the operational GFS which tries to bring a little moisture into the southeast part of the CWA on Wednesday. Too busy with ongoing storms to analyze this further. && .AVIATION...For McCarran...Skies are expected to start out broken around 10k feet with northwest winds around 10 kts. We are looking for showers and thunderstorms to develop again this afternoon which could affect the terminal. Gusty outflow winds will certainly be possible into the evening. Potential air traffic impacts are substantial, with chances of convection at the terminal and in the flight corridors. For the rest of southern Nevada...northwest Arizona...and southeast California...Scattered showers and thunderstorms will impact most of the region today with storms this morning across southern Mohave and southeast California. Most of the other storm development is expected this afternoon. Winds will generally be less than 10 kts, but gusty outflow winds will certainly be a possibility. Lower cigs near storms are also possible. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather according to standard operating procedures. Flash flooding will be a concern with any thunderstorm today especially across Mohave, Clark, and San Bernardino Counties. && Short Term/Aviation...Gorelow Long Term...Morgan 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
1029 PM PDT THU JUN 30 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0930 PM FLASH FLOOD 14 NNW NEEDLES 35.04N 114.69W
06/30/2016 SAN BERNARDINO CA LAW ENFORCEMENT
CALIFORNIA HIGHWAY PATROL REPORTS FLASH
FLOODING AT NEEDLES HIGHWAY AND RIVER ROAD.
SEVERAL ADJACENT COUNTY ROADS ARE ALSO
WASHED OUT. START TIME OF 730 PM PDT AND
ONGOING AT REPORT TIME OF 930 PM PDT.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1035 PM PDT THU JUN 30 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1006 PM FLASH FLOOD 1 WNW NEEDLES 34.85N 114.63W
06/30/2016 SAN BERNARDINO CA LAW ENFORCEMENT
CALIFORNIA HIGHWAY PATROL REPORTS US HIGHWAY
95 IS CLOSED AT INTERSTATE 40 OWING TO HEAVY
RAIN AND FLASH FLOODING.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1146 PM PDT THU JUN 30 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1144 PM HAIL 1 WNW PAHRUMP 36.21N 116.00W
06/30/2016 U1.00 INCH NYE NV TRAINED SPOTTER
SPOTTER IN PAHRUMP REPORTED HAIL UP TO THE
SIZE OF A QUARTER.
&&
ASGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1243 AM PDT FRI JUL 1 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1213 AM FLASH FLOOD 11 SW MERCURY 36.55N 116.13W
07/01/2016 NYE NV DEPT OF HIGHWAYS
STATE ROUTE 160 IS CLOSED FROM MILE MARKER
32 TO U.S. 95 DUE TO FLOODING. DISTANCE IS
ABOUT 2 MILES. .
&&
ASGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
110 AM PDT FRI JUL 1 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 PM FLASH FLOOD 9 NNW FURNACE CREEK 36.57N 116.92W
06/30/2016 INYO CA LAW ENFORCEMENT
CHP REPORTED FLASH FLOODING ON STATE ROUTE
190 IN DEATH VALLEY NATIONAL PARK BETWEEN
DAYLIGHT PASS CUTOFF TO COW CREEK. TIME
ESTIMATED BASED ON RADAR DATA.
&&
JHThe Las Vegas radar (KESX), 87 km away, was scanning. The volume nearest the first event began at 10:59 UTC.
4 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Several roads were washed out and basketball size boulders dislodged in and around Oatman.
Nine power poles were blown down in Bullhead City and Mohave Valley. Several trees were blown down in Mohave Valley, and there was minor damage to structures.
Rocks and debris washed onto AZ Highway 95.
Hackberry Road was closed from Truxton Wash to I-40 due to flooding.
Signal Road was closed from Highway 93 to Alamo Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2016Every state in 2016This day in weather historyWarnings in Arizona, July 2016
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 646608, 646609, 646610, 646613, 646614.