A thunderstorm produced strong winds in Chino Valley.
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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 FGZ wrote it up.
A thunderstorm produced strong winds in Chino Valley.
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 Aug 30, 9:13 PM MST, 1 hour 17 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 913 PM MST SUN AUG 30 2015 .SYNOPSIS...EXPECT ANOTHER ROUND OF SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ON MONDAY. SOUTHWEST FLOW WILL BEGIN TO PUSH STORM ACTIVITY EASTWARD ON TUESDAY...EVENTUALLY LIMITING STORMS TO THE FAR EASTERN BORDER BY LATE IN THE WEEK. && .DISCUSSION... PERSISTENT SHOWERS AND THUNDERSTORMS ARE CONTINUING ACROSS NORTH- CENTRAL AZ THIS EVENING...THOUGH THE INTENSITY OF THESE STORMS IS GENERALLY WANING. EXPECT CHANCES TO CONTINUE THRU THE NIGHT...BEFORE ANOTHER ROUND OF MORE WIDESPREAD AND STRONGER STORMS DEVELOPS MONDAY. && .PREV DISCUSSION /339 PM MST/...SHOWERS AND THUNDERSTORMS HAVE AFFECTED MUCH OF NORTHERN ARIZONA TODAY. FLOODING FROM HEAVY RAINFALL HAS BEEN THE PRIMARY HAZARD. HAIL HAS GENERALLY BEEN ON THE SMALL SIZE, ALTHOUGH WE RECEIVED A REPORT OF DIME SIZED HAIL IN YAVAPAI COUNTY EARLIER IN THE DAY. SHORT TERM MODEL GUIDANCE SUGGESTS SHOWER AND THUNDERSTORM ACTIVITY WILL SLOWLY DIMINISH THIS AFTERNOON AND EVENING. EXPECT ANOTHER ROUND OF SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TOMORROW AS GOOD LOW LEVEL MOISTURE REMAINS IN PLACE ACROSS THE REGION. FLOODING FROM HEAVY RAINFALL WILL CONTINUE TO BE THE PRIMARY HAZARD. BEGINNING TUESDAY...A DRY SOUTHWEST FLOW IS FORECAST TO SET UP OVER NORTHERN ARIZONA...WHICH WILL EVENTUALLY LIMIT STORM COVERAGE TO THE EASTERN BORDER BY WEDNESDAY OR THURSDAY. ALONG WITH THE DRIER AIR WILL COME COOLER TEMPERATURES AS A LONG WAVE TROUGH DEVELOPS TO OUR NORTH...ALONG WITH GUSTY DAYTIME SOUTHWEST WINDS. && .AVIATION...FOR THE 06Z PACKAGE...EXPECT DECREASING COVERAGE OF TSRA THIS EVENING WITH ISOLATED MVFR/IFR CONDITIONS IN ANY STRONGER STORMS. STORMS TO REDEVELOP AGAIN DURING THE DAYTIME HOURS MONDAY. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC...KD/RR AVIATION...KD FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 356 AM MST SUN AUG 30 2015 AZZ004>018-037>040-310330- KAIBAB PLATEAU-MARBLE AND GLEN CANYONS-GRAND CANYON COUNTRY- COCONINO PLATEAU-YAVAPAI COUNTY MOUNTAINS- NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY- CHUSKA MOUNTAINS AND DEFIANCE PLATEAU- LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY- LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY- LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY- WESTERN MOGOLLON RIM-EASTERN MOGOLLON RIM-WHITE MOUNTAINS- NORTHERN GILA COUNTY-YAVAPAI COUNTY VALLEYS AND BASINS- OAK CREEK AND SYCAMORE CANYONS-BLACK MESA AREA- NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264- 356 AM MST SUN AUG 30 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO... NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY AND TONIGHT HIGHER MOISTURE VALUES AND A MORE UNSTABLE AIRMASS WILL BRING AN ACTIVE DAY TO THE REGION TODAY. THE THREAT FOR LOCALLY HEAVY RAINFALL AND HAIL WILL BE ENHANCED...WHEN COMPARED TO SATURDAY. PRIMARY THREATS TODAY WILL BE HEAVY RAIN...GUSTY THUNDERSTORM WINDS TO 50 MPH... LIGHTNING AND ISOLATED DAMAGING HAIL. STORM MOTION WILL BE TO THE EAST AND NORTHEAST. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY DRIER SOUTHWEST FLOW WILL DEVELOP NEXT WEEK...WITH STORM COVERAGE SLOWLY SHIFTING EAST TOWARD THE NEW MEXICO BORDER. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Flagstaff radar (KFSX), 116 km away, was scanning. The volume nearest the first event began at 05:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong winds from a thunderstorm knocked down a mature cottonwood tree in Chino Valley.
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, August 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: 600736.