Heavy rain caused street flooding in parts of Flagstaff.
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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.
Heavy rain caused street flooding in parts of Flagstaff.
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 Sep 8, 9:30 AM MST, 2 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 930 AM MST SUN SEP 8 2013 .SYNOPSIS...SHOWER AND THUNDERSTORM ACTIVITY WILL INCREASE OVER THE NEXT SEVERAL DAYS...WITH A WET PATTERN LASTING THROUGH MID WEEK. SOME AREAS MAY RECEIVE HEAVY RAINFALL OVER THE NEXT SEVERAL DAYS. && .DISCUSSION...LIGHT RAIN SHOWERS AND A FEW EMBEDDED THUNDERSTORMS CONTINUE TO MOVE NORTHWARD AND EXPAND IN AREA ACROSS NRN AZ THIS MORNING. SO FAR...PCPN RATES AND RAINFALL AMOUNTS HAVE BEEN VERY LIGHT. GIVEN THE EXTENSIVE CLOUD COVER AND VERY STABLE SOUNDING IT MAY BE DIFFICULT TO GENERATE MUCH STRONG CONVECTION ACROSS THE REGION...HOWEVER THE COVERAGE AND DURATION OF RAINFALL EXPECTED TODAY COULD STILL RESULT IN FLOODING POTENTIAL. WITH RAIN COVERAGE EXPANDING WILL UPDATE POPS FOR THIS MORNING AND AFTERNOON. && .PREV DISCUSSION (345 AM)...MOIST SOUTHERLY FLOW CONTINUES ACROSS ARIZONA THIS MORNING BETWEEN THE CENTRAL U.S. RIDGE AND WEAK TROUGHING DEVELOPING JUST TO OUR WEST. THE PLUME OF HIGHER PRECIPITABLE WATER WITH VALUES FROM 1" TO AROUND 1.5" EXTENDS FROM MEXICO ACROSS ARIZONA AND INTO SOUTHERN UTAH. IN ADDITION...WEAK TROUGHING DEVELOPING OVER WESTERN AZ MAY BRING SOME LIFT TO THE REGION TODAY. INSTABILITY MAY STRUGGLE DUE TO COOL BOUNDARY LAYER AND CLOUDS...BUT POTENTIAL IS THERE FOR SOME LOCALIZED HEAVY RAIN AND FLASH FLOODING TODAY THROUGH THIS EVENING...MAINLY FOR YAVAPAI...COCONINO...NRN GILA COUNTIES. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR THESE AREAS. THE WEAK TROUGH WILL LINGER JUST WEST OF THE STATE THROUGH MIDWEEK BEFORE SLOWLY LIFTING OFF TO THE NORTHEAST BY THURSDAY OR FRIDAY. MONDAY AND TUESDAY STILL LOOK WET...WITH A POSSIBILITY OF LOCALLY HEAVY RAINFALL. HOWEVER...PINPOINTING THE AREAS OF HEAVY RAIN THREAT IS TRICKY AS SOME MODELS CONTINUE TO SHIFT THE AXIS OF HIGHEST PW INTO FAR EASTERN AZ OR NEW MEXICO AS EARLY AS LATE MONDAY. FOR THIS REASON...WE WILL LET LATER SHIFTS DETERMINE THE NEED FOR FURTHER FLOOD WATCHES BEYOND TONIGHT. WITH THE CLOUDS AND SHOWERS AROUND... DAYTIME TEMPERATURES WILL BE SEVERAL DEGREES BELOW NORMAL THROUGH TUESDAY. AS THE TROUGH MOVES NORTHEASTWARD...DRIER AIR SHOULD MOVE INTO THE REGION...DECREASING THE CHANCE OF SHOWERS TOWARD THE END OF THE WEEK. && .AVIATION...FOR THE 18Z PACKAGE...SCT-NMRS SHRA THIS MORNING WITH SCT MVFR CONDITIONS. ACTIVITY FCST TO INCREASE AND BECOME NMRS BY 18Z ACROSS N AZ WITH LESS COVERAGE OVER THE FOUR CORNERS. ISOLD +TSRA ANTICIPATED THIS AFTERNOON AND EVENING. CLOUD DECKS WILL RANGE FROM 3-7KFT IN MOST AREAS...BUT PERSISTENT CONVECTIVE AREAS WILL SEE MORE PERSISTENT MVFR CIGS WITH BRIEF IFR CONDITIONS. SHRA/TSRA ACTIVITY EXPECTED TO CONTINUE THROUGH THE EVENING AND OVERNIGHT HOURS. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS. && .FGZ WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH TODAY FROM 11 AM UNTIL MIDNIGHT MST FOR AZZ004>009-012-015-016-018-037-038. && PUBLIC.....DB/JJ AVIATION...MCS FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE FLAGSTAFF AZ 830 AM MST SUN SEP 8 2013 AZZ004>018-037>040-090330- 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- 830 AM MST SUN SEP 8 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO... NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA. .DAY ONE...TODAY AND TONIGHT FLASH FLOOD WATCH HAS BEEN CANCELLED. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY DEEP MOISTURE IS FORECAST TO PERSIST ACROSS THE REGION FROM MONDAY THROUGH TUESDAY. SHOWERS AND THUNDERSTORMS ARE LIKELY...WITH A RISK OF LOCALIZED HEAVY RAIN AND FLASH FLOODING. MOISTURE WILL GRADUALLY DECREASE TOWARD THE END OF THE WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Heavy rain caused urban street flooding with reports of water and mud on South Milton Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2013Every state in 2013This day in weather historyWarnings in Arizona, September 2013
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: 479264.