1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Phoenix, AZ wrote its last area forecast discussion before the first event at Jul 27, 4:30 AM MST, 1 hour 30 minutes earlier.
AZZ020>028-CAZ030>033-271800- AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 430 AM MST THU JUL 27 2006 SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND SOUTHEAST CALIFORNIA FORECAST DISCUSSION .SYNOPSIS... HIGH PRESSURE ALOFT WILL REMAIN OVER NEVADA AND UTAH THE REST OF THE WEEK. WEATHER DISTURBANCES EMBEDDED WITHIN A NORTHEAST FLOW ALOFT...ALONG WITH ABUNDANT MOISTURE...WILL RESULT IN PERIODS OF SHOWERS AND THUNDERSTORMS THE REST OF THE WEEK...SOME WITH HEAVY RAIN. TEMPERATURES WILL REMAIN BELOW AVERAGE FOR LATE JULY THE REST OF THE WEEK. NEXT WEEK...SOUTHWESTERLY FLOW ALOFT IS ANTICIPATED TO DEVELOP...LEADING TO A SLOW DECREASE IN MOISTURE AND ALONG WITH A WARMING TREND. && .SHORT TERM... TODAY THROUGH SATURDAY... QUITE A CHALLENGE TO FIGURE OUT TIMING...INTENSITY...AND AREAL COVERAGE OF STORMS FOR THE NEXT SEVEN DAYS. THANKS IN LARGE PART TO THE GULF SURGE OVER THE PAST COUPLE DAYS...MOISTURE IS PLENTIFUL. SO NOW EVEN SUBTLE FEATURES IN THE FLOW CAN HAVE A BIG IMPACT AND LEAD TO ATYPICAL TIMING OF STORM ACTIVITY. MODELS ALWAYS TEND TO STRUGGLE IN ACCURATELY PROGGING THOSE TYPES OF FEATURES. THEY CAN MISS THE ONES THAT ARE THERE ENTIRELY OR ADVERTISE FICTITIOUS PERTURBATIONS OR JUST BE OFF THE MARK WITH THE TIMING AND/OR PLACEMENT OF ACTUAL FEATURES. MODEL TO MODEL AGREEMENT TENDS TO BE LIMITED TO THE LARGE SCALE FEATURES. KEEPING THOSE THINGS IN MIND...EARLY THIS MORNING THERE HAS BEEN ONGOING CONVECTION OVER ROUGHLY THE SOUTHEASTERN QUARTER OF ARIZONA. THE 00Z PLOT DATA SHOWED AN AREA OF UPPER LEVEL DIFFLUENCE OVER EASTERN ARIZONA AND WESTERN NEW MEXICO WHICH WOULD AIDE THE STORM DEVELOPMENT. BUT GIVEN THE TIMING...IT APPEARS AS THOUGH THERE MAY BE SOME ADDITIONAL FORCING. BOTH THE 00Z GFS AND NAM-WRF DEPICTED VERTICAL MOTIONS OVER EAST CENTRAL ARIZONA AT 06Z BUT THE NAM-WRF QUICKLY MOVED THE AREA OF VERTICAL MOTIONS TO SOUTHERN CALIFORNIA BY 12Z WHERAS THE GFS STILL HAD A BULLSEYE OVER ZONE 24 AT 12Z...SHIFTING SOUTHWARD BY 18Z. GIVEN THE WAY THE CONVECTION HAS BEEN PLAYING OUT...IT APPEARED THE GFS HAD A BETTER HANDLE ON THINGS EXCEPT FOR PERHAPS BEING TOO SLOW. THUS...LEANED TOWARD THE GFS SOLUTION EARLY ON. BOTH MODELS HAVE NORTHEASTERLY STEERING FLOW TODAY WHICH COULD BE QUITE INTERESTING IF GOOD CONVECTION GETS GOING OVER YAVAPAI AND NORTHERN GILA COUNTIES. ALREADY...THERE IS SOME NEW CONVECTION DEVELOPING OVER THOSE LOCATIONS. GIVEN THAT...AND THE REMNANTS OF THE MCS OVER SOUTHEAST ARIZONA...MORNING STORM ACTIVITY OVER SOUTH-CENTRAL ARIZONA IS LIKELY BUT IT REMAINS TO BE SEEN HOW WIDESPREAD IT WILL BE. FOLLOWING THE IDEA OF DYNAMICS BEING GONE BY LATE AFTERNOON...FIGURED THAT THERE WOULD BE ENOUGH OF A DECREASE IN CLOUDINESS TO ALLOW TEMPS TO GET PRETTY CLOSE TO YESTERDAY...OR EVEN A LITTLE WARMER IN WESTERN ZONES. A FEATURE OF INTEREST THAT BOTH MODELS DEPICT IS THE DEVELOPMENT OF A CUTOFF LOW OVER NEW MEXICO TODAY AND TONIGHT. MEANWHILE...THE MAIN ANTICYCLONE REMAINS OVER NEVADA. ALSO OF NOTE IS TROPICAL STORM EMILIA IS TRACKING WESTWARD AWAY FROM BAJA. THE MODELS DISAGREE ON THE HANDLING OF THE UPPER LOW. THE NAM-WRF MOVES IT INTO ARIZONA FRIDAY IN THE FORM OF AN INVERTED TROUGH WHILE THE GFS KEEPS IT A CLOSED LOW OVER NEW MEXICO TRAPPED UNDER THE RIDGE. THIS FEATURE IS A REAL WILDCARD AND COULD SIGNIFICANLY AFFECT THE STEERING FLOW OVER OUR FORECAST AREA AND IN TURN STORM ACTIVITY. GIVEN ALL THE MOISTURE...POPS ARE ABOVE CLIMO THROUGH SATURDAY. HOWEVER...TRIED TO DEPICT MORE FAMILIAR DIURNAL TRENDS AFTER TODAY. WITH POTENTIAL FOR STORMS TO PRODUCE HEAVY RAIN...THERE IS CONCERN FOR POSSIBILITY OF FLASH FLOODING. GIVEN DIFFICULTY IN DETERMING TIMING AND COVERAGE OF STORM ACTIVITY...IT WOULD BE OVERKILL TO ISSUE A BROAD BRUSHED FLASH FLOOD WATCH. HOWEVER...WILL CONTINUE TO EVALUATE NEED FOR A FLASH FLOOD WATCH. && .LONG TERM... SATURDAY NIGHT THROUGH WEDNESDAY... EARLY NEXT WEEK...THE GFS SHOWS THE WESTERLIES MAKING AN INTRUSION WITH A TROUGH MOVING THROUGH THE NORTHWEST STATES. ACCORDINGLY IT SHOWS SOME DECREASE IN MOISTURE...ESPECIALLY OVER SOUTHEAST CALIFORNIA. SOUTHWESTERLY FLOW ALSO TENDS NOT TO BE FAVORABLE FOR STORMS ON THE LOWER DESERTS. A CAVEAT WOULD BE THE POSSIBILITY OF AN EMBEDDED DISTURBANCE PROVIDING SOME DYNAMICAL INFLUENCE. WITH THIS SHIFT...TRENDED DOWN THE POPS AND CLOUDS TO MORE CONSERVATIVE VALUES AND SHOWED MORE DIURNAL SPREAD IN THE TEMPERATURES WITH A GRADUAL WARMING TREND. && .AVIATION... 12Z TAFS ADEQUATELY DEPICT EXPECTED WEATHER. SEE TAFS PHXTAFPHX...PHXTAFIWA...PHXTAFYUM...LAXTAFBLH AND LAXTAFIPL FOR MORE DETAILED INFORMATION. AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS. && .PSR WATCHES/WARNINGS/ADVISORIES... AZ...NONE. CA...NONE && NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX 17
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 600 AM MST THU JUL 27 2006 AZZ022-023-027-028-281300- NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA- SOUTHWEST MARICOPA COUNTY- NORTHWEST AND NORTH CENTRAL PINAL COUNTY- 600 AM MST THU JUL 27 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT ABUNDANT MOISTURE ALONG WITH INSTABILITY WILL LEAD TO THE CHANCE FOR SHOWERS AND THUNDERSTORMS AT ANY TIME DURING THE DAY. WHERE STORMS DO OCCUR...HEAVY RAIN WILL BE POSSIBLE...LEADING TO THE POTENTIAL FOR FLASH FLOODING. THE POTENTIAL FOR FLASH FLOODING IS NOT ANTICIPATED TO BE WIDESPREAD ENOUGH TO MERIT A WATCH AT THIS TIME. HOWEVER...THE SITUATION WILL BE MONITORED CLOSELY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ABUNDANT MOISTURE IS EXPECTED TO BE IN PLACE THROUGH THE WEEKEND BEFORE BEGINNING TO DECREASE NEXT WEEK. THUS...THE FLASH FLOOD POTENTIAL WILL CONTINUE OVER THE WEEKEND BEFORE DIMINISHING DURING THE WORK WEEK. HOWEVER...THERE WILL STILL BE AT LEAST A SLIGHT CHANCE OF STORMS DURING THE NEXT WORK WEEK WITH THE POTENTIAL FOR DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ020-021-025-026-CAZ030>033-281300- LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS- YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS- JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA- RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY- 600 AM PDT THU JUL 27 2006 /600 AM MST THU JUL 27 2006/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-CENTRAL ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT ABUNDANT MOISTURE ALONG WITH SOME INSTABILITY WILL LEAD TO A SLIGHT CHANCE FOR SHOWERS AND THUNDERSTORMS...MAINLY IN THE LATE AFTERNOON AND EVENING. WHERE STORMS DO OCCUR...HEAVY RAIN WILL BE POSSIBLE...LEADING TO THE POTENTIAL FOR FLASH FLOODING. THE POTENTIAL FOR FLASH FLOODING IS NOT ANTICIPATED TO BE WIDESPREAD ENOUGH TO MERIT A WATCH AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ABUNDANT MOISTURE IS EXPECTED TO BE IN PLACE THROUGH SATURDAY BEFORE BEGINNING TO DECREASE NEXT WEEK. ACCORDINGLY...THE HEAVY RAIN POTENTIAL WILL CONTINUE THROUGH SATURDAY BEFORE DECREASING NEXT WEEK. THERE WILL ONLY BE A LINGERING SLIGHT CHANCE OF STORMS DURING THE NEXT WORK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ024-281300- SOUTHERN GILA/TONTO NF FOOTHILLS- 600 AM MST THU JUL 27 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT ABUNDANT MOISTURE ALONG WITH INSTABILITY WILL LEAD TO SCATTERED SHOWERS AND THUNDERSTORMS AT ANY TIME TODAY. WHERE STORMS DO OCCUR...HEAVY RAIN WILL BE POSSIBLE LEADING TO THE POTENTIAL FOR FLASH FLOODING. THE POTENTIAL FOR FLASH FLOODING IS NOT ANTICIPATED TO BE WIDESPREAD ENOUGH TO MERIT A WATCH AT THIS TIME. HOWEVER...THE SITUATION WILL BE MONITORED CLOSELY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ABUNDANT MOISTURE IS EXPECTED TO BE IN PLACE THROUGH THE WEEKEND BEFORE BEGINNING TO DECREASE NEXT WEEK. THUS FLASH FLOOD POTENTIAL WILL CONTINUE OVER THE WEEKEND BEFORE DIMINISHING DURING THE WORK WEEK. HOWEVER...THERE WILL STILL BE A CHANCE OF STORMS DURING THE NEXT WORK WEEK WITH THE POTENTIAL FOR DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AJ
The Phoenix radar (KIWA), 52 km away, was scanning. The volume nearest the first event began at 13:01 UTC.
1 lightning. Local standard time, as filed.
Slow moving thunderstorms produced very heavy rain, with lightning that caused at least one fire.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2006Every state in 2006This day in weather historyWarnings in Arizona, July 2006
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: 5523231.