An intense thunderstorm produced strong outflow winds in Garfield County.
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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 intense thunderstorm produced strong outflow winds in Garfield County.
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 Jun 16, 4:10 PM MST, 1 hour 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 510 PM MDT TUE JUN 16 2015 .UPDATE... ISSUED AT 457 PM MDT TUE JUN 16 2015 STRONG THUNDERSTORMS CONTINUE MOVING WEST TO EAST ACROSS NW CO AND ESPECIALLY NE UT. SEVERE STORMS ARE STILL POSSIBLE. ONE FUNNEL CLOUD WAS REPORTED AT 155 PM IN EASTERN DAGGETT COUNTY. A SEVERE THUNDERSTORM WATCH CONTINUES ACROSS DAGGETT...MOFFAT AND ROUTT COUNTIES UNTIL 10 PM. SIGNIFICANT STORMS REMAIN POSSIBLE OVER UINTAH COUNTY AS WELL AS RIO BLANCO...GARFIELD...MESA...NORTHERN DELTA...EAGLE AND PITKIN COUNTIES. UPDATE ISSUED AT 248 PM MDT TUE JUN 16 2015 SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR DAGGETT...MOFFAT...AND ROUTT COUNTIES UNTIL 10PM THIS EVENING. LARGE HAIL AND WINDS GREATER THAN 58 MPH WILL BE THE MAIN THREAT WITH THESE STORMS. PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT. && .SHORT TERM...(TONIGHT THROUGH WEDNESDAY NIGHT) ISSUED AT 225 PM MDT TUE JUN 16 2015 SCATTERED SHOWERS AND THUNDERSTORMS SWEPT EASTWARD ACROSS THE FORECAST AREA THIS MORNING AHEAD OF PAIR OF WEAK DISTURBANCES WHICH PASSED OVER THE AREA. AFTER A BRIEF LULL IN ACTIVITY AROUND MIDDAY ...DAYTIME HEATING GENERATED ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS OVER THE HIGHER TERRAIN. INGREDIENTS REMAINED IN PLACE FOR STRONG THUNDERSTORMS ACROSS THE NORTH AND A STRONG CELL HAD FORMED OVER THE EASTERN UINTA MOUNTAINS. WEAK DRYING AT MID- LEVELS WILL BRING PRECIPITABLE WATER LEVELS DOWN A BIT SO EXPECT SHOWERS AND THUNDERSTORMS WILL DECREASE SIGNIFICANTLY AFTER SUNSET. ECMWF/NAM/GFS ALL INDICATED POTENTIAL FOR A FEW SHOWERS AND POSSIBLY AN EMBEDDED THUNDERSTORM OVER THE CENTRAL COLORADO MOUNTAINS LATE TONIGHT. OVERNIGHT LOWS WILL CONTINUE TO BE SEASONABLE. DRIER AIR WILL CONTINUE TO SLOWLY ADVECT INTO THE CWA FROM THE WEST IN A WESTERLY FLOW ON WEDNESDAY WITH PRECIPITABLE WATER VALUES DROPPING TO AROUND 0.5 INCHES. THERE ARE A FEW RIPPLES IN THE FLOW AND ENOUGH MOISTURE ALONG THE EASTERN EDGE OF OUR CWA TO GENERATE SOME DIURNALLY DRIVEN SHOWERS AND THUNDERSTORMS MAINLY OVER THE HIGHER TERRAIN. LOWER VALLEYS EXPECTED TO REMAIN DRY BUT THINKING THE MODELS ARE WANTING TO DRY OUT THE ATMOSPHERE A LITTLE TOO QUICKLY GIVEN THE INCREASED STORM ACTIVITY THIS MORNING WHEN MODELS WERE TRENDING DRIER FOR THE MOST PART. CONVECTION IS EXPECTED TO WIND DOWN OVERNIGHT WITH NO REAL FORCING TO KEEP THINGS GOING. TEMPERATURES WILL BE SLOWLY WARMING TO A FEW DEGREES ABOVE NORMAL. .LONG TERM...(THURSDAY THROUGH TUESDAY) ISSUED AT 225 PM MDT TUE JUN 16 2015 FORECAST MODELS CONTINUE TO WANT TO DRY OUT THE ATMOSPHERE EVEN FURTHER WITH PW VALUES DECREASING TO 0.4 INCHES WITH 0.5 LINGERING ALONG THE DIVIDE. THE GFS INDICATES A SHORTWAVE TROUGH WITH EMBEDDED VORT MAXES MOVING THROUGH THURSDAY AFTERNOON AND EVENING. GIVEN THE ADDITIONAL FORCING AND LINGERING MOISTURE AND THE THINKING THAT MODELS ARE A BIT TOO QUICK IN DRYING THINGS OUT...BELIEVE THIS WILL BE ENOUGH TO GENERATE SOME SCATTERED SHOWERS AND THUNDERSTORMS OVER THE HIGHER TERRAIN IN THE AFTERNOON. INCREASED POPS ON THURSDAY AS A RESULT. LAPSE RATES ARE ALSO SUFFICIENT WITH VALUES APPROACHING 9.5 C/KM. SOME ISOLATED STORMS MAY DRIFT OR FORM OVER VALLEYS LATER IN THE DAY GIVEN THE ADDITIONAL FORCING BUT VALLEYS SHOULD REMAIN DRY FOR THE MOST PART. GIVEN THE DRIER LOW LEVELS...GUSTY OUTFLOW WINDS LOOK TO BE THE PRIMARY CONCERN. HIGH PRESSURE CENTERED OVER THE DESERT SOUTHWEST WILL SLOWLY BUILD INTO THE GREAT BASIN BY FRIDAY WITH MAINLY DRY CONDITIONS SEEN. AN ISOLATED STORM OR TWO MAY POP OVER THE SAN JUANS WHERE SOME MOISTURE MAY LINGER...BUT THINK BY THIS POINT MOISTURE WILL BE MINIMAL. A LOW PRESSURE SYSTEM OUT OF THE PACIFIC NW WILL MOVE ACROSS THE NORTHERN ROCKIES ON SATURDAY WITH THE SOUTHERN FRINGE OF THIS SYSTEM SKIMMING THE EXTREME NORTHERN SECTIONS OF OUR CWA AS THE JET DIPS SOUTH OF THE CO-WY BORDER. THIS WILL RESULT IN SOME BREEZY CONDITIONS UP NORTH WITH SOME HIGH CLOUDS BUT NOTHING MUCH ELSE AS THE BEST MOISTURE AND FORCING REMAIN WELL NORTH OF OUR CWA. THE HIGH PRESSURE CENTER WILL SHIFT EASTWARD ACROSS THE FOUR CORNERS THIS WEEKEND AND REMAIN THROUGH EARLY NEXT WEEK. THIS WILL LEAD TO MUCH DRIER AIR WITH PW VALUES LESS THAN 0.25 INCHES AND TEMPERATURES WARMING TO WELL ABOVE NORMAL VALUES WITH 7H TEMPS NEAR 20C FROM SAT THRU TUES. MANY LOWER VALLEYS WILL SEE MID TO UPPER 90S WITH SOME LOCATIONS, PARTICULARLY IN SE UTAH, SEEING TRIPLE DIGIT HEAT. NUDGED MAX TEMPS UPWARDS IN THIS DIRECTION DURING THIS PERIOD AS BC GUIDANCE STILL COMING IN A BIT TOO COOL. && .AVIATION...(FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY EVENING) ISSUED AT 457 PM MDT TUE JUN 16 2015 VFR CONDITIONS WILL PREVAIL SOUTH OF A LINE FROM MOAB TO MONTROSE TO GUNNISION WITH THE ONLY EXCEPT BEING IN THE SAN JUAN MTS NORTH OF PAGOSA SPRINGS WHERE SCATTERED THUNDERSTORMS WILL CAUSE MOUNTAIN OBSCURATIONS. NORTH OF THAT LINE STRONG THUNDERSTORMS WILL BE POSSIBLE UNTIL ABOUT 10 PM. KRIL AND KEGE HAVE ABOUT A 25PERCENT CHANCE OF A STORM AFFECTING CIGS AND VSBYS ENOUGH TO REACH ILS BREAKPOINTS. KGJT AND KASE HAVE ABOUT A 15 PERCENT CHANCE. STORMS SHOULD SUBSIDE AFTER 10 PM WITH VFR CONDITION PREVAILING OVERNIGHT THROUGH WEDNESDAY AFTERNOON. && .GJT WATCHES/WARNINGS/ADVISORIES... CO...NONE. UT...NONE. && UPDATE...CC SHORT TERM...NL/MDA LONG TERM....MDA AVIATION...CC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 258 PM MDT TUE JUN 16 2015 COZ003-006>012-014-017>023-UTZ022-024-025-027>029-172100- ROAN AND TAVAPUTS PLATEAUS-GRAND VALLEY-DEBEQUE TO SILT CORRIDOR- CENTRAL COLORADO RIVER BASIN-GRAND AND BATTLEMENT MESAS- GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS- CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN- WEST ELK AND SAWATCH MOUNTAINS-UPPER GUNNISON RIVER VALLEY- UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE- NORTHWEST SAN JUAN MOUNTAINS-SOUTHWEST SAN JUAN MOUNTAINS- PARADOX VALLEY/LOWER DOLORES RIVER- FOUR CORNERS/UPPER DOLORES RIVER-ANIMAS RIVER BASIN- SAN JUAN RIVER BASIN-SOUTHEAST UTAH-EASTERN UINTA BASIN- TAVAPUTS PLATEAU-ARCHES/GRAND FLAT-LA SAL AND ABAJO MOUNTAINS- CANYONLANDS/NATURAL BRIDGES- 258 PM MDT TUE JUN 16 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER WESTERN COLORADO...LESS NUMEROUS OVER EASTERN UTAH. A FEW STRONG THUNDERSTORMS IS POSSIBLE WITH SMALL HAIL AND GUSTY WINDS. STORMS WILL END QUICKLY THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED AFTERNOON SHOWERS AND THUNDERSTORMS IS EXPECTED OVER THE WESTERN COLORADO HIGH COUNTRY. WIDESPREAD HOT AND DRY WEATHER IS EXPECTED FOR SEVERAL DAYS BEGINNING ON THURSDAY. TEMPERATURES IN THE DESERT VALLEYS OF SOUTHEAST UTAH WILL BE APPROACHING 100 DEGREES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. COZ001-002-004-005-013-UTZ023-172100- LOWER YAMPA RIVER BASIN-CENTRAL YAMPA RIVER BASIN- ELKHEAD AND PARK MOUNTAINS-UPPER YAMPA RIVER BASIN-FLATTOPS- EASTERN UINTA MOUNTAINS- 258 PM MDT TUE JUN 16 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL COLORADO...NORTHWEST COLORADO...WEST CENTRAL COLORADO AND NORTHEAST UTAH. ...SEVERE THUNDERSTORM WATCH 304 IS IN EFFECT UNTIL 10 PM FOR MOFFAT AND ROUTT COUNTIES IN NORTHWEST COLORADO... .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER WESTERN COLORADO...LESS NUMEROUS OVER EASTERN UTAH. A FEW SEVERE THUNDERSTORMS ARE POSSIBLE WITH LARGE HAIL AND DAMAGING WINDS. STORMS WILL END LATE THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED AFTERNOON SHOWERS AND THUNDERSTORMS IS EXPECTED OVER THE WESTERN COLORADO HIGH COUNTRY. WIDESPREAD HOT AND DRY WEATHER IS EXPECTED FOR SEVERAL DAYS BEGINNING ON THURSDAY. TEMPERATURES IN THE DESERT VALLEYS OF SOUTHEAST UTAH WILL BE APPROACHING 100 DEGREES. .SPOTTER INFORMATION STATEMENT... SPOTTERS HAVE BEEN ACTIVATED THROUGH 10 PM FOR UINTAH...ROUTT...AND MOFFAT COUNTIES.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 555 PM MDT TUE JUN 16 2015 COZ002-013-170030- FLATTOPS CO-CENTRAL YAMPA RIVER BASIN CO- 555 PM MDT TUE JUN 16 2015 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL RIO BLANCO COUNTY UNTIL 630 PM MDT... AT 555 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 20 MILES NORTHWEST OF MEEKER...OR 42 MILES SOUTHWEST OF CRAIG...MOVING EAST AT 20 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF NORTH CENTRAL RIO BLANCO COUNTY. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT FOR NORTHWESTERN COLORADO. LAT...LON 4015 10837 4027 10834 4026 10799 4011 10800 TIME...MOT...LOC 2355Z 274DEG 17KT 4018 10823 JAM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 557 PM MDT TUE JUN 16 2015 COZ001-UTZ024-025-170045- LOWER YAMPA RIVER BASIN CO-TAVAPUTS PLATEAU UT- EASTERN UINTA BASIN UT- 557 PM MDT TUE JUN 16 2015 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN RIO BLANCO AND EAST CENTRAL UINTAH COUNTIES UNTIL 645 PM MDT... AT 557 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 26 MILES SOUTHWEST OF DINOSAUR...OR 30 MILES SOUTHEAST OF FORT DUCHESNE...MOVING EAST AT 25 MPH. 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 NORTHWESTERN RIO BLANCO AND EAST CENTRAL UINTAH COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 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 AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 3990 10947 4008 10952 4022 10897 3995 10890 TIME...MOT...LOC 2357Z 257DEG 22KT 4001 10941 JDC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
604 PM MDT TUE JUN 16 2015
COZ008-010-170045-
CENTRAL COLORADO RIVER BASIN CO-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS CO-
604 PM MDT TUE JUN 16 2015
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN EAGLE COUNTY UNTIL
645 PM MDT...
AT 604 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES SOUTHWEST OF AVON...OR 39 MILES EAST OF GLENWOOD SPRINGS...
MOVING EAST AT 25 MPH.
DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
AVON...VAIL...MINTURN...VAIL PASS...REDCLIFF...EDWARDS...RED CLIFF...
GILMAN...EAGLE-VAIL AND DOWD.
LAT...LON 3960 10621 3956 10621 3956 10620 3953 10621
3953 10626 3946 10625 3943 10666 3960 10671
3971 10630 3970 10627 3968 10626 3968 10624
3966 10624 3965 10618 3961 10618
TIME...MOT...LOC 0004Z 257DEG 21KT 3954 10660
JDCSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 609 PM MDT TUE JUN 16 2015 COZ007>010-170045- GRAND AND BATTLEMENT MESAS CO-CENTRAL COLORADO RIVER BASIN CO- GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS CO- DEBEQUE TO SILT CORRIDOR CO- 609 PM MDT TUE JUN 16 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GARFIELD COUNTY UNTIL 645 PM MDT... AT 609 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR RIFLE...OR 22 MILES WEST OF GLENWOOD SPRINGS...MOVING EAST AT 40 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... RIFLE...NEW CASTLE AND SILT. LAT...LON 3941 10734 3934 10781 3951 10787 3960 10745 TIME...MOT...LOC 0009Z 253DEG 33KT 3946 10774 JAM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 618 PM MDT TUE JUN 16 2015 COZ002-003-013-170100- ROAN AND TAVAPUTS PLATEAUS CO-FLATTOPS CO- CENTRAL YAMPA RIVER BASIN CO- 618 PM MDT TUE JUN 16 2015 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL RIO BLANCO COUNTY UNTIL 700 PM MDT... AT 617 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR MEEKER...OR 41 MILES SOUTHWEST OF CRAIG...MOVING EAST AT 35 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MEEKER AND BUFORD. LAT...LON 3990 10815 4009 10814 4012 10754 3986 10754 TIME...MOT...LOC 0017Z 271DEG 28KT 4000 10796 JAM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND JUNCTION CO 647 PM MDT TUE JUN 16 2015 COZ001>003-170115- ROAN AND TAVAPUTS PLATEAUS CO-LOWER YAMPA RIVER BASIN CO- CENTRAL YAMPA RIVER BASIN CO- 647 PM MDT TUE JUN 16 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN RIO BLANCO COUNTY UNTIL 715 PM MDT... AT 646 PM MDT...DOPPLER RADAR WAS TRACKING A COUPLE OF STRONG THUNDERSTORMS 24 MILES SOUTHEAST OF RANGELY...OR 50 MILES NORTH OF GRAND JUNCTION... MOVING EAST AT 40 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHWESTERN RIO BLANCO COUNTY. LAT...LON 3971 10886 3983 10887 3992 10813 3972 10811 TIME...MOT...LOC 0046Z 263DEG 34KT 3982 10849 JAM
The Grand Junction radar (KGJX), 88 km away, was scanning. The volume nearest the first event began at 01:00 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm outflow winds buffeted and nearly blew vehicles off Interstate 70.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2015Every state in 2015This day in weather historyWarnings in Colorado, June 2015
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: 575014.