Thunderstorm Wind, Maricopa
- When
- July 27, 5:55 PM MST
- Where
- Maricopa County, Phoenix Deer Vly Arp
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 33.683, -112.083
Damaging Wind in Arizona, July 27, 2004
1 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What forecasters said that day
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, 3:40 PM MST, 2 hours 15 minutes earlier.
Area forecast discussion, Jul 27, 3:40 PM MST, 2 hours 15 minutes before
AZZ020>028-CAZ030>033-280545- AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 340 PM TUE JUL 27 2004 SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND SOUTHEAST CALIFORNIA FORECAST DISCUSSION .SYNOPSIS... AN UPPER LEVEL DISTURBANCE MOVING THROUGH ARIZONA THIS EVENING WILL PRODUCE ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ACROSS SOUTH- CENTRAL ARIZONA...WITH DRY WEATHER EXPECTED ELSEWHERE TONIGHT. OVER THE NEXT FEW DAYS...HIGH PRESSURE ALOFT WILL SLIDE TO THE SOUTH OF ARIZONA...ALLOWING MUCH DRIER AIR TO ENTER THE DESERT SOUTHWEST AND ENDING THE THREAT OF THUNDERSTORMS UNTIL THE WEEKEND. AT THAT TIME... THE UPPER LEVEL HIGH WILL DEVELOP BACK TO OUR EAST AND THIS WILL GIVE AN INCREASE IN MOISTURE ALONG WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVER SOUTH-CENTRAL ARIZONA. && .DISCUSSION... SEVERE...ORGANIZED CONVECTION HAS FORMED AS EXPECTED THIS AFTERNOON. SO FAR...ALL OF THIS ACTIVITY HAS BEEN TO OUR N...ALTHOUGH SOME STRONG-LOOKING STORMS HAVE RECENTLY FORMED OVER ZONE 24. JET STREAK THAT IS PARTLY RESPONSIBLE FOR THIS ROUND OF CONVECTION WILL SPEED PAST THE AREA BY AROUND MIDNIGHT...THUS...MAIN THREAT WILL END BY THEN. SPC ISSUED SVR TSTM WATCH NUMBER 670 EARLIER THIS AFTERNOON FOR BASICALLY PHX AREA EWD...ALSO INCLUDING FAR NCTNRL MARICOPA COUNTY. EVENING SHIFT WILL NEED TO CLOSELY WATCH CONVECTION OVER YAVAPAI COUNTY NEXT FEW HOURS...AS STEERING FLOWS AND RIGHT-TURNING TENDENCIES OF THESE STORMS WOULD EVENTUALLY CAUSE STORM PROPAGATION TOWARDS THE PHX AREA. AFTER TONIGHT...ADVERTIZED DRYING TREND WILL PRETTY MUCH PUT AN END TO OUR CONVECTIVE THREAT FOR A FEW DAYS... EXCEPT FOR POSSIBLY EXTREME ERN GILA COUNTY TOMORROW. GFS CONTINUES TO SHOW A GRADUAL INCREASE IN MOISTURE ONCE AGAIN OVER THE WEEKEND. OF COURSE...ANY MCS SONORAN DEVELOPMENT AND RELATED SURGES WOULD ACCELERATE THIS RE-MOISTENING. TOUGH TO CALL FOR THIS AT THIS TIME. TEMPS WILL BE NEAR OR SLIGHTLY ABOVE NORMAL...WITH NEAR OR BELOW NORMAL THICKNESSES OFFSETTING THE WARMING EFFICIENCY OF A DRIER AMS. TEMPS AT NIGHT SHOULD BE LOWER DUE TO CLEAR SKIES AND LOWER DEWPOINTS. IOP FOR INCREASED RAOBS FOR NAME PROJECT...MONSOON SUPPRESSION 0000 GMT WEDNESDAY THROUGH 0000 GMT FRIDAY. .PSR WATCHES/WARNINGS/ADVISORIES... AZ...NONE. CA...NONE. && ESTLE
Hazardous weather outlook, Jul 27, 10:40 AM MST, 7 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 1040 AM MST TUE JUL 27 2004 AZZ022-023-027-028-280700- GREATER PHOENIX AREA-NORTHWEST AND NORTH CENTRAL PINAL COUNTY- NORTHWEST MARICOPA COUNTY-SOUTHWEST MARICOPA COUNTY- 1040 AM MST TUE JUL 27 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL ARIZONA EXCLUDING THE HIGHER TERRAIN. .DAY ONE...TODAY ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON AND EVENING. STRONG AND DAMAGING WINDS WILL BE THE MAIN THREAT... WITH TREES...POWER LINES...AND POORLY CONSTRUCTED BUILDINGS BEING MOST AT RISK. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE WITH THE STRONGEST STORMS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR POSSIBLE WATCHES OR WARNINGS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY DRY WEATHER WILL PREVAIL ACROSS THE AREA WEDNESDAY THROUGH SATURDAY. SOME MOISTURE WILL RETURN EARLY NEXT WEEK FOR A SLIGHT CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS SUNDAY AND MONDAY. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON AND EVENING. AZZ024-280700- SOUTHERN GILA/TONTO NF FOOTHILLS- 1040 AM MST TUE JUL 27 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL ARIZONA HIGHER TERRAIN. .DAY ONE...TODAY ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND EVENING. DAMAGING WIND AND LARGE HAIL ARE THE MAIN THREATS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLETS FOR POSSIBLE WATCHES OR WARNINGS. HEAVY RAINS MAY CAUSE MINOR FLOODING OF POOR DRAINAGE AND LOW LYING AREAS. WASHES MAY BEGIN FLOWING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY AFTER A SLIGHT CHANCE FOR AFTERNOON THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING...THE AREA WILL UNDERGO A DRYING TREND WITH NO THUNDERSTORMS OR HAZARDOUS WEATHER ANTICIPATED THURSDAY AND FRIDAY. SOME ADDITIONAL MOISTURE MAY RETURN TO THE AREA SATURDAY THROUGH MONDAY FOR A SLIGHT CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING. AZZ020-021-025-026-CAZ030>033-280700- IMPERIAL COUNTY-JOSHUA TREE NATIONAL PARK- LOWER COLORADO RIVER VALLEY AZ-LOWER COLORADO RIVER VALLEY CA- RIVERSIDE COUNTY/EASTERN DESERTS-SOUTHWEST DESERTS- WEST CENTRAL DESERTS-YUMA/MARTINEZ LAKE AND VICINITY- 1040 AM MST TUE JUL 27 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ESTLE
The radar
The Phoenix radar (KIWA), 58 km away, was scanning. The volume nearest the first event began at 00:55 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado in New Jersey, July 27, 2004
- Flash Flood in Pennsylvania, July 27 to 28, 2004
- Tornado in Pennsylvania, July 27, 2004
- Lightning Strike in Florida, July 27, 2004
- Flash Flooding in Texas, July 27 to 28, 2004
- Lightning Strike in Pennsylvania, July 27, 2004
- Flood in Pennsylvania, July 27, 2004
- Flash Flood in Pennsylvania, July 27, 2004
- Hail and Damaging Winds in South Dakota, July 27, 2004
- Flash Flooding in Maryland, July 27 to 28, 2004
- Flash Flooding in Virginia, July 27, 2004
- Flash Flood and Hail in Nebraska, July 27, 2004
More
Every storm in Arizona in 2004Every state in 2004This day in weather historyWarnings in Arizona, July 2004
Sources
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: 5412929.