An exiting upper level disturbance and surge of monsoonal moisture resulted in numerous showers and embedded thunderstorms across eastern Utah which resulted in a few locations that received heavy rainfall.
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 GJT wrote it up.
An exiting upper level disturbance and surge of monsoonal moisture resulted in numerous showers and embedded thunderstorms across eastern Utah which resulted in a few locations that received heavy rainfall.
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 Grand Junction, CO wrote its last area forecast discussion before the first event at Jul 2, 2:31 PM MST, 3 hours 29 minutes earlier.
Area Forecast Discussion National Weather Service Grand Junction CO 331 PM MDT SAT JUL 2 2016 .SHORT TERM...(This evening through Sunday night) Issued at 331 PM MDT Sat Jul 2 2016 Monsoonal moisture will begin decreasing tonight as troughing exits to the east. Plenty of available moisture will remain over the region Sunday to produce convective activity in the afternoon. An unorganized vorticity feature at 500mb sweeps through the moderate riding building in which should help with some minor dynamics on Monday as well. As mentioned in the previous discussion, showers and thunderstorms are expected to initiate over the higher terrain then drift into the adjacant valleys to the east. Steering motion will still be slow (~10-15 mph) due to little flow aloft. Kept many valleys in slight chance pops with lapse rates and convective indices favorable for broad-brushed development across eastern Utah and western Colorado. .LONG TERM...(Monday through Saturday) Issued at 331 PM MDT Sat Jul 2 2016 Forecast soundings finally dry out at mid levels on Monday, so convection should become yet more isolated Monday afternoon. A 40 kt jet aloft dips into Utah and Colorado on Tuesday as a low pressure system drops south into Washington state. This jet entrance will bring drier air across eastern Utah and northwestern Colorado. On Thursday, precipitable water values increase to about a half inch across the Four Corners which will allow for some convection over the San Juans, but elsewhere will remain dry. Next weekend still on tap to be drier with temperatures above normal. && .AVIATION...(For the 00Z TAFS through 00Z Sunday evening) Issued at 331 PM MDT Sat Jul 2 2016 Scattered to numerous showers and thunderstorms will continue over the next 18 hours. Most storms will produce moderate to heavy rainfall, but a handful will produce excessive rain. As a result, airports across the region can expect brief periods of MVFR CIGS and VSBY and/or CIGS below ILS breakpoints throughout the evening with showers tapering off after 03z tonight. Low stratus may develop during the overnight hours due to lingering moisture at the surface. Scattered showers and thunderstorms will once again develop after 17z on Sunday. && .GJT Watches/Warnings/Advisories... CO...None. UT...None. && SHORT TERM...JAM LONG TERM...JAM AVIATION...TGJT
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
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 514 PM MDT SAT JUL 2 2016 COZ006-UTZ027-030000- GRAND VALLEY CO-ARCHES/GRAND FLAT UT- 514 PM MDT SAT JUL 2 2016 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL GRAND COUNTY UNTIL 600 PM MDT... AT 513 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 25 MILES WEST OF FRUITA...OR 32 MILES NORTH OF CASTLE VALLEY...MOVING NORTHEAST AT 10 MPH. FREQUENT CLOUD TO GROUND LIGHTNING...DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF EAST CENTRAL GRAND COUNTY. THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 219 AND 228. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLOODING. 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 3897 10914 3903 10928 3923 10916 3916 10901 TIME...MOT...LOC 2313Z 218DEG 9KT 3907 10918 MA
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 550 PM MDT SAT JUL 2 2016 COZ006-UTZ027-030030- GRAND VALLEY CO-ARCHES/GRAND FLAT UT- 550 PM MDT SAT JUL 2 2016 ...SPECIAL WEATHER STATEMENT... AT 549 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 16 MILES WEST OF FRUITA...OR 26 MILES NORTHWEST OF GRAND JUNCTION...MOVING EAST AT 15 MPH. FREQUENT CLOUD TO GROUND LIGHTNING AND TORRENTIAL RAINFALL WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... LOMA AND MACK. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 70 BETWEEN MILE MARKERS 3 AND 19. U.S. HIGHWAY 6 BETWEEN MILE MARKERS 14 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLOODING. 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 3913 10907 3930 10912 3938 10880 3916 10876 TIME...MOT...LOC 2349Z 256DEG 13KT 3924 10901 MA
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
611 PM MDT SAT JUL 2 2016
UTZ025-027-030100-
TAVAPUTS PLATEAU UT-ARCHES/GRAND FLAT UT-
611 PM MDT SAT JUL 2 2016
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL GRAND COUNTY UNTIL
700 PM MDT...
AT 610 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES SOUTHEAST OF GREEN RIVER...MOVING SOUTH AT 5 MPH.
HALF INCH DIAMETER HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE
POSSIBLE WITH THIS STORM ALONG WITH FREQUENT LIGHTNING AND
TORRENTIAL RAINFALL.
THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF WEST CENTRAL GRAND
COUNTY.
THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 169 AND 179.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO
LOCALIZED FLOODING. 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 3893 11017 3893 11013 3898 11015 3898 11008
3895 11004 3895 11000 3896 11000 3899 11004
3899 11009 3900 11010 3900 11015 3904 11013
3903 10989 3876 10989 3878 11012 3881 11010
3884 11014 3886 11014 3886 11016 3891 11018
TIME...MOT...LOC 0010Z 008DEG 6KT 3895 11004
MAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
616 PM MDT SAT JUL 02 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0557 PM HAIL 5 NW MACK 39.27N 108.93W
07/02/2016 E0.50 INCH MESA CO TRAINED SPOTTER
HALF INCH DIAMETER HAIL WITH PEAK WIND GUST TO 50 MPH
AND VERY HEAVY RAIN. WATER RUNNING DOWN DRIVEWAY.
0557 PM TSTM WND GST 5 NW MACK 39.27N 108.93W
07/02/2016 M50 MPH MESA CO TRAINED SPOTTER
HALF INCH DIAMETER HAIL WITH PEAK WIND GUST TO 50 MPH
AND VERY HEAVY RAIN. WATER RUNNING DOWN DRIVEWAY.
&&
EVENT NUMBER GJT1600733
EVENT NUMBER GJT1600734
MALEKSASPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 639 PM MDT SAT JUL 2 2016 COZ003-006-017-030130- GRAND VALLEY CO-UNCOMPAHGRE PLATEAU/DALLAS DIVIDE CO- ROAN AND TAVAPUTS PLATEAUS CO- 639 PM MDT SAT JUL 2 2016 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MESA COUNTY UNTIL 730 PM MDT... AT 637 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11 MILES SOUTH OF FRUITA...OR 13 MILES SOUTHWEST OF GRAND JUNCTION... MOVING EAST AT 15 MPH. FREQUENT CLOUD TO GROUND LIGHTNING...TORRENTIAL RAINFALL...NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... GRAND JUNCTION...GLADE PARK...WHITEWATER...REDLANDS...ORCHARD MESA...FRUITVALE AND CLIFTON. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 70 BETWEEN MILE MARKERS 26 AND 38. U.S. HIGHWAY 6 BETWEEN MILE MARKERS 26 AND 39. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLOODING. 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. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 3888 10881 3905 10889 3922 10849 3897 10836 TIME...MOT...LOC 0037Z 248DEG 15KT 3899 10877 MA
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
654 PM MDT SAT JUL 02 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0630 PM HAIL 11 W GLADE PARK 39.00N 108.93W
07/02/2016 E0.25 INCH MESA CO TRAINED SPOTTER
PEA SIZE HAIL AND HEAVY RAIN
&&
EVENT NUMBER GJT1600735
MALEKSAThe national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Heavy rainfall resulted in swollen streams and creeks in portions of southwest Grand County. Radar precipitation estimates were in excess of an inch in a few locations.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 2016Every state in 2016This day in weather historyWarnings in Utah, 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: 680877.