A thunderstorm produced damaging winds in Joseph City.
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 FGZ wrote it up.
A thunderstorm produced damaging winds in Joseph City.
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 Flagstaff, AZ wrote its last area forecast discussion before the first event at Jul 9, 9:50 AM MST, 4 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 950 AM MST THU JUL 9 2015 .SYNOPSIS...A DRIER AIR MASS WILL MOVE ACROSS CENTRAL AND WESTERN ARIZONA WITH THUNDERSTORM ACTIVITY CONTINUING OVER APACHE AND NAVAJO COUNTY...AND LOWER CHANCES OF SHOWERS AND THUNDERSTORMS ELSEWHERE TODAY AND FRIDAY. FOR THE WEEKEND...MOISTURE WILL SPREAD WESTWARD ONCE AGAIN...WITH CHANCES FOR SHOWERS AND THUNDERSTORMS RETURNING TO ALL OF NORTHERN ARIZONA BY MONDAY. && .UPDATE...SENT AN UPDATE TO THE FORECAST A SHORT TIME AGO TO REFLECT A HIGHER CHANCE OF SHOWERS AND THUNDERSTORMS OVER NAVAJO, APACHE AND NORTHEAST GILA COUNTIES. MOISTURE HAS ACTUALLY INCREASED OVER EASTERN ARIZONA SINCE YESTERDAY AS SOUTHERLY FLOW AHEAD OF THE CALIFORNIA TROUGH HAS PULLED IN DEEPER MOISTURE. THE AIR MASS NORTHWEST OF A PAYSON TO KAYENTA LINE, INCLUDING COCONINO AND YAVAPAI COUNTIES, IS MUCH DRIER TODAY COMPARED TO YESTERDAY AND ONLY A SLIGHT CHANCE OF SHOWERS OR THUNDERSTORMS IS EXPECTED OVER THE HIGHER TERRAIN. FOR EASTERN ARIZONA, INCREASED WIND SHEAR WILL LEAD TO A CHANCE OF A FEW STRONG TO POSSIBLY SEVERE THUNDERSTORMS THROUGH THIS AFTERNOON BUT THIS WILL DEPEND ON INSTABILITY. THE STORM THREAT WILL COME TO AN END OVER EASTERN AZ BY MID TO LATE EVENING, WITH MUCH DRIER WEATHER AREA WIDE FOR FRIDAY. && .PREV DISCUSSION /350 AM MST/...LOW PRESSURE WAS CENTERED NEAR CENTRAL CALIFORNIA. THIS SYSTEM IS FORECAST TO PRODUCING A DRIER AND BREEZIER SOUTHWEST FLOW OVER ARIZONA. AS A RESULT, SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED MAINLY OVER NAVAJO AND APACHE COUNTIES TODAY WITH FEWER STORMS ELSEWHERE. FRIDAY SHOULD BE DRY WITH JUST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVER PORTIONS OF NAVAJO AND APACHE COUNTIES. HIGH TEMPERATURES TODAY AND FRIDAY WILL BE 5-10 DEGREES BELOW NORMAL, ALONG WITH INCREASED AFTERNOON SOUTHWEST WINDS. BY SATURDAY AND SUNDAY...THE LOW PRESSURE SYSTEM THAT WAS CENTERED OVER CENTRAL CALIFORNIA/SOUTHERN NEVADA WILL HAVE MOVED ON INTO THE CENTRAL U.S...ALLOWING THE HIGH PRESSURE CENTER TO BEGIN TO BUILD BACK INTO THE AREA. AS THE HIGH BUILDS BACK IN THIS WILL ALLOW THE RETURN OF A MOIST MONSOON CIRCULATION. THE MOISTURE AND INSTABILITY FIRST RETURNS TO PORTIONS OF THE MOGOLLON RIM AND WHITE MOUNTAINS WITH INCREASED THUNDERSTORM ACTIVITY THERE ON SATURDAY... THEN MOVING FARTHER NORTHWEST INTO PORTIONS OF YAVAPAI AND COCONINO COUNTY ON SUNDAY. FOR NEXT WEEK MONDAY THROUGH THURSDAY...A LOW TO MODERATE GRADE MONSOON WITH SCATTERED TO NUMEROUS SHOWER AND THUNDERSTORM ACTIVITY CAN BE EXPECTED. && .AVIATION...FOR THE 18Z PACKAGE...SCATTERED THUNDERSTORMS WILL DEVELOP EAST OF A K0V7-KSOW LINE...WITH SLIGHT CHANCES FOR THUNDERSTORMS OVER HIGHER TERRAIN ELSEWHERE THROUGH 04Z. MVFR/IFR CONDITIONS WILL BE POSSIBLE NEAR STRONGER CELLS. SOME STORMS MAY BECOME SEVERE WITH 50KT PLUS WINDS AND HAIL OVER 1 INCH IN DIAMETER. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FIRE WEATHER...A LOW PRESSURE SYSTEM OVER THE WEST COAST WILL BRING A DRIER WESTERLY FLOW TO ARIZONA. AS A RESULT...EXPECT DECREASING SHOWER ACTIVITY...EXCEPT OVER FAR EASTERN ARIZONA WHERE ENOUGH MOISTURE WILL REMAIN TO CAUSE A CHANCE OF SHOWERS AND THUNDERSTORMS. SATURDAY THROUGH MONDAY...MOISTURE AND INSTABILITY WILL BE ON THE INCREASE AS HIGH PRESSURE BUILDS ACROSS NORTHERN ARIZONA FROM THE EAST. ON SATURDAY...THE BEST CHANCES FOR SHOWERS AND THUNDERSTORMS WILL BE ACROSS EASTERN ARIZONA...WITH GOOD CHANCES FOR STORMS EXPANDING TO INCLUDE ALL OF NORTHERN ARIZONA BY EARLY NEXT WEEK. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC...JJ/TC AVIATION...MAS FIRE WEATHER...RR FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 934 AM MST THU JUL 9 2015 AZZ010-011-013-014-016>018-039-040-100200- CHINLE VALLEY-CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- EASTERN MOGOLLON RIM-WHITE MOUNTAINS-NORTHERN GILA COUNTY- BLACK MESA AREA-NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- 934 AM MST THU JUL 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL ARIZONA...NORTH CENTRAL ARIZONA AND NORTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THIS AFTERNOON GENERALLY EAST OF A LINE FROM PAYSON TO KAYENTA. A FEW STORMS COULD BECOME STRONG OR SEVERE...WITH HAIL UP TO ONE INCH IN DIAMETER AND STRONG GUSTY WINDS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY DRIER CONDITIONS ARE FORECAST FOR FRIDAY WITH MOISTURE AND THUNDERSTORM CHANCES GRADUALLY RETURNING FOR THE WEEKEND AND EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1224 PM MST THU JUL 9 2015 AZZ010-092000- CHINLE VALLEY- 1224 PM MST THU JUL 9 2015 ...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL NAVAJO AND FAR NORTHWESTERN APACHE COUNTIES... AT 1223 PM MST...A STRONG THUNDERSTORM WAS 7 MILES SOUTH OF MONUMENT VALLEY VISITORS CENTER...MOVING NORTH NORTHEAST AT 30 MPH. WIND GUSTS UP TO 50 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MONUMENT VALLEY VISITORS CENTER. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. LAT...LON 3679 11007 3684 11025 3700 11017 3700 10992 TIME...MOT...LOC 1923Z 200DEG 26KT 3687 11014 MOTTICE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 1241 PM MST THU JUL 9 2015 AZZ009-010-039-092000- NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY-BLACK MESA AREA- 1241 PM MST THU JUL 9 2015 ...STRONG THUNDERSTORMS ARE AFFECTING FAR NORTHERN NAVAJO COUNTY... AT 1240 PM MST...STORNG THUNDERSTORMS WERE LOCATED 11 MILES NORTH OF NAVAJO NATIONAL MONUMENT...MOVING NORTH AT 25 MPH. WINDS IN EXCESS OF 40 MPH AND DIME SIZE HAIL ARE POSSIBLE WITH THIS STORM. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. LAT...LON 3700 11033 3685 11039 3689 11060 3700 11057 TIME...MOT...LOC 1940Z 190DEG 21KT 3693 11046 MOTTICE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1250 PM MST THU JUL 09 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1248 PM HAIL 1 ESE MONUMENT VALLEY 36.98N 110.11W
07/09/2015 E0.50 INCH NAVAJO AZ TRAINED SPOTTER
A LOT OF HAIL AT THE MONUMENT VALLEY VISITORS CENTER.
MOSTLY AROUND A HALF INCH OR SMALLER.
&&
EVENT NUMBER FGZ1500085
CLMSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 124 PM MST THU JUL 9 2015 AZZ040-092045- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- 124 PM MST THU JUL 9 2015 ...A STRONG THUNDERSTORM WILL AFFECT EASTERN COCONINO AND WEST CENTRAL NAVAJO COUNTIES... AT 122 PM MST...A STRONG THUNDERSTORM WAS 14 MILES SOUTHWEST OF KYKOTSMOVI...OR 36 MILES WEST OF KEAMS CANYON...MOVING NORTH NORTHEAST AT 30 MPH. WIND GUSTS UP TO 50 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... HOPI RESERVATION. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. LAT...LON 3562 11078 3568 11092 3592 11083 3584 11060 TIME...MOT...LOC 2022Z 197DEG 36KT 3571 11082 MOTTICE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 129 PM MST THU JUL 9 2015 AZZ013-040-092100- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- 129 PM MST THU JUL 9 2015 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL NAVAJO COUNTY UNTIL 200 PM MST... AT 128 PM MST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER JOSEPH CITY...OR 22 MILES EAST OF WINSLOW...MOVING NORTHEAST AT 40 MPH. HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... JOSEPH CITY. INTERSTATE 40 BETWEEN JOSEPH CITY AND HOLBROOK. LAT...LON 3483 11031 3496 11046 3526 11019 3505 10995 TIME...MOT...LOC 2028Z 227DEG 36KT 3496 11032 JJ
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE FLAGSTAFF AZ 209 PM MST THU JUL 9 2015 AZZ009-039-092130- NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-BLACK MESA AREA- 209 PM MST THU JUL 9 2015 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN COCONINO AND FAR NORTHWESTERN NAVAJO COUNTIES... AT 206 PM MST...A STRONG THUNDERSTORM WAS 7 MILES SOUTH NAVAJO MOUNTAIN TRADING POST...OR 35 MILES EAST OF PAGE...MOVING NORTHEAST AT 25 MPH. WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS STORM. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. 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. LAT...LON 3680 11079 3689 11094 3700 11086 3700 11055 TIME...MOT...LOC 2106Z 218DEG 23KT 3690 11082 MOTTICE
The Flagstaff radar (KFSX), 90 km away, was scanning. The volume nearest the first event began at 21:08 UTC.
1 thunderstorm wind. Local standard time, as filed.
A thunderstorm wind gust knocked down a medium sized tree on Main Street.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2015Every state in 2015This day in weather historyWarnings in Arizona, July 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: 596687.