Storms moved toward the south and briefly became severe near San Carlos.
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 PSR wrote it up.
Storms moved toward the south and briefly became severe near San Carlos.
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 Aug 13, 2:58 PM MST, 4 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 258 PM MST WED AUG 13 2008 SOUTH-CENTRAL AND SOUTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA FORECAST DISCUSSION .SYNOPSIS... A MOIST AND UNSTABLE AIRMASS WILL CONTINUE THE THREAT FOR SHOWERS AND THUNDERSTORMS FROM SOUTHEAST CALIFORNIA EAST TO THE HIGHER TERRAIN OF SOUTHERN GILA COUNTY THROUGH THURSDAY. FRIDAY INTO THE WEEKEND...A DRYING AND WARMING TREND WILL COMMENCE...WITH THE DAILY THREAT FOR AFTERNOON AND EVENING SHOWER AND THUNDERSTORM ACTIVITY CONFINED TO THE HIGHER TERRAIN WELL EAST OF THE GREATER PHOENIX AREA. && .DISCUSSION... INTERESTING SAT/RADAR TRENDS THIS AFTERNOON...SHOWING QUITE A BIT OF CONVECTIVE ACTIVITY OVER THE WHITES TO THE EAST AS WELL AS OVER SOUTHEAST ARIZONA. CLOSER TO HOME...OVER THE SOUTH-CENTRAL ARIZONA DESERTS...WE ARE STILL CAPPED AT 700MB WITH A TEMP OF 14C AS OF THE 20 UTC KPSR SOUNDING. HOWEVER...WE LOST THE 400MB INVERSION FROM 12 UTC THIS MORNING TO THIS AFTERNOON...BUT THAT STUBBORN WARMER/DRIER LAYER BETWEEN ABOUT 800 AND 600MB WILL BE OUR CHALLENGE FOR THE REST OF THE AFTERNOON AND EVENING HOURS. HOWEVER...IM THINKING WE SHOULD BE ABLE TO COOL/MOISTEN UP THE MID LAYERS AFTER 00 UTC THIS AFTERNOON AS THE OUTFLOW FROM THE LARGE AREA OF CONVECTION TO THE SOUTH WORKS ITS WAY NORTHWARD INTO THE LOWER DESERTS. ONCE THAT HAPPENS...WE SHOULD BE ABLE TO REALIZE ANY ELEVATED CAPE WE HAVE IN 21 UTC SOUNDING LATE THIS EVENING. MODELS ALSO CONTINUE TO SHOW AN AREA OF UPPER LEVEL DIFFLUENCE OVER THE CENTRAL PORTIONS OF OUR CWA TONIGHT...WHILE BRINGING A PIECE OF THE ENERGY ASSOCIATED WITH THE LARGER SCALE LOW OVER BAJA MOVING THROUGH THE CENTRAL/EASTERN PORTIONS OF OUR CWA. BOTTOM LINE...WITH THE PROJECTED OVERNIGHT FORCING...AND BANKING ON SOME COOLING/MOISTENING IN THE MID LEVELS FROM SHOWERS/THUNDERSTORMS TO THE SOUTH...THE CHANCE FOR OVERNIGHT ACTIVITY ACROSS THE GREATER PHOENIX AREA INCREASES...AND FCST REFLECTS THIS THINKING. OUT WEST...IT STILL LOOKS LIKE THE MAIN DYNAMICS WITH THIS DISTURBANCE SPINNING OVER BAJA WILL ROTATE THROUGH SOUTHEAST CA AND FAR SOUTHWESTERN AZ LATE TODAY AND INTO THE OVERNIGHT HOURS...AND THE INCREASED POPS FROM THIS MORNINGS UPDATE STILL SEEM REASONABLE. THURSDAY...THE FORCING WERE EXPECTING TO MOVE THROUGH SOUTHEAST CA AND SOUTHWEST AZ OVERNIGHT WILL SHIFT EASTWARD THURSDAY...FOR AN INCREASING THREAT FOR SHOWERS AND THUNDERSTORMS FROM MARICOPA COUNTY EAST. PLENTY OF MOISTURE WILL REMAIN AVAILABLE THURSDAY...AND THE MAIN THREAT WITH ANY STORMS THAT DEVELOP WILL BE HEAVY RAIN. FRIDAY THROUGH THE UPCOMING WEEKEND...THE FLOW WILL CHANGE FROM A MOIST SOUTHERLY REGIME TO A DRIER NORTHERLY FLOW. MODELS ARE CONTINUING TO ADVERTISE A STRONG RIDGE OF HIGH PRESSURE TO DEVELOP OVER THE WESTERN CONUS MID WEEK...WHILE AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM DIVES DOWN THE FRONT SIDE OF THE HIGHLY AMPLIFIED RIDGE INTO THE SOUTHERN PLAINS. SOUTHEAST CA AND SOUTHWEST/ SOUTH-CENTRAL ARIZONA WILL BE UNDER A MUCH DRIER NORTHERLY FLOW FOR THE WEEKEND...ULTIMATELY CONFINING THE THREAT FOR DAILY SHOWERS/THUNDERSTORMS TO THE HIGHER TERRAIN OF SOUTHERN GILA COUNTY. FIRST HALF OF NEXT WEEK...THE LOW OVER THE SOUTHERN PLAINS WILL PUSH EASTWARD WHILE HIGH PRESSURE CONTINUES TO DOMINATE THE WESTERN CONUS. CANNOT RULE OUT THE DAILY THREAT FOR A SLIGHT CHANCE OF SHOWERS/THUNDERSTORMS OVER THE HIGHEST TERRAIN OF SOUTHERN GILA COUNTY...AZ ZONE 24...AND WILL CONTINUE A LOW-GRADE MONSOON FORECAST MONDAY THROUGH MID WEEK. TEMPERATURES WILL ALSO BEGUB A WARMING TREND THE FIRST PART OF NEXT WEEK...ALONG WITH THE AFOREMENTIONED DRYING TREND. && .AVIATION... LOW PRESSURE SYSTEM MOVING ALONG THE BAJA/SRN CA COAST RESPONSIBLE FOR SPREADING MID/HIGH LEVEL CLOUDS ACROSS THE AREA. SURFACE MOISTURE LEVELS ARE ALSO UP. THE LOW PRESSURE SYSTEM WILL INTERACT WITH ALL THE MOISTURE AND CAUSE SHOWERS AND THUNDERSTORMS TO DEVELOP ACROSS THE SOUTHWEST CONUS THIS AFTERNOON INTO THIS EVENING. ONSET WILL BE DELAYED DUE TO THE CLOUD COVER. AREA MOST LIKELY TO BE ACTIVE WILL BE SOUTHEAST CALIFORNIA. STILL UNCERTAINTY AS TO THE COVERAGE OF CONVECTION FOR THIS EVENING AND WILL THEREFORE HOLD WITH CB GROUP IN AREA TAFS EXCEPT FOR KIPL /VCTS/. COULD SEE SOME SHOWERS CONTINUE THROUGH THE OVERNIGHT HOURS ACROSS THE AREA. THURSDAY ALSO LOOKS TO BE CONVECTIVELY ACTIVE ALL AREAS WITH TSTM ENHANCEMENT SHIFTING TO ERN AZ. AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS. && .FIRE WEATHER... TODAY AND THURSDAY... INCREASING RH FROM A LARGE TROPICAL-LIKE SYSTEM IN MEXICO WILL LEAD TO A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BOTH DAYS. TEMPERATURES WILL LIKELY REMAIN NEAR NORMAL. FOR THE UPCOMING WEEKEND... THE LOW PRESSURE SYSTEM WILL DRIFT TO THE NORTHWEST...AWAY FROM ARIZONA AND SOUTHEAST CALIF. AT THE SAME TIME...AN AREA OF HIGH PRESSURE AND DRIER AIR WILL SPREAD ACROSS ARIZONA AND NEVADA && .PSR WATCHES/WARNINGS/ADVISORIES... AZ...NONE. CA...NONE. && NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX DISCUSSION...WANEK AVIATION...INIGUEZ FIRE WEATHER...SIPPLE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 517 AM MST WED AUG 13 2008 AZZ022-023-027-028-141300- NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA- SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY- 517 AM MST WED AUG 13 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT THERE IS AT LEAST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING... STRONG GUSTY WINDS WITH REDUCED VISIBILITY IN BLOWING DUST...AND LOCALLY HEAVY RAIN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AND THURSDAY EVENING...AND AGAIN SATURDAY AFTERNOON AND EVENING. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS WITH REDUCED VISIBILITY IN BLOWING DUST...AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX AZZ024-141300- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 517 AM MST WED AUG 13 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AND THURSDAY EVENING...FRIDAY AFTERNOON AND EVENING...AND EACH AFTERNOON AND EVENING EARLY NEXT WEEK. THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS SATURDAY AFTERNOON AND EVENING. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX AZZ020-021-025-026-CAZ031>033-141300- LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS- YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS- LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS- IMPERIAL COUNTY- 517 AM MST WED AUG 13 2008 /517 AM PDT WED AUG 13 2008/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST- CENTRAL ARIZONA AND EXTREME SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT THERE IS AT LEAST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING... STRONG GUSTY WINDS WITH REDUCED VISIBILITY IN BLOWING DUST...AND LOCALLY HEAVY RAIN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS AT LEAST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AND THURSDAY EVENING. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS WITH REDUCED VISIBILITY IN BLOWING DUST...AND LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX CAZ030-141300- JOSHUA TREE NATIONAL PARK- 517 AM PDT WED AUG 13 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT THERE IS AT LEAST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING... STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS AT LEAST A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AND THURSDAY EVENING...AND FRIDAY AFTERNOON AND EVENING. THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY AFTERNOON. HAZARDS INCLUDE CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN WITH POSSIBLE FLOODING ESPECIALLY THURSDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX ELLIS
The Phoenix radar (KIWA), 114 km away, was scanning. The volume nearest the first event began at 02:06 UTC.
1 thunderstorm wind. Local standard time, as filed.
Power outage due to strong winds. Possible funnel cloud near mile marker 256 on highway 70.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2008Every state in 2008This day in weather historyWarnings in Arizona, August 2008
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: 123214.