Alert archive / Arizona / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 55, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 21, 2010, 4:35 PM MST for Maricopa County, Arizona. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 21, 2010, 4:35 PM MST (23:35 UTC)
- Expired
- Sep 21, 2010, 5:15 PM MST
- In force
- 40 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 23:37 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Sep 21, 3:10 PM MST, 1 hour 25 minutes earlier.
Area forecast discussion, Sep 21, 3:10 PM MST, 1 hour 25 minutes before
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</html>Hazardous weather outlook, Sep 21, 6:09 AM MST, 10 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 609 AM MST TUE SEP 21 2010 AZZ022-023-027-028-221300- NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA- SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY- 609 AM MST TUE SEP 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TODAY... INCREASING TONIGHT AND BECOMING LIKELY LATE TONIGHT. THE MAIN HAZARDS ARE STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA... TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. ANOTHER HAZARD IS DANGEROUS CLOUD-TO-GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SHOWERS AND THUNDERSTORMS ARE LIKELY WEDNESDAY...DECREASING BY LATE AFTERNOON. THE MAIN HAZARDS ARE LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA...TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. OTHER HAZARDS INCLUDE DANGEROUS CLOUD-TO-GROUND LIGHTNING AND STRONG GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ020-021-025-026-CAZ031-221300- LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS- YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS- LOWER COLORADO RIVER VALLEY CA- 609 AM MST TUE SEP 21 2010 /609 AM PDT TUE SEP 21 2010/ 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 A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EAST OF THE LOWER COLORADO RIVER VALLEY THIS AFTERNOON AND THIS EVENING... THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE ENTIRE AREA AFTER MIDNIGHT...MOSTLY EAST OF THE LOWER COLORADO RIVER VALLEY. THE MAIN HAZARDS ARE STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA...TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. ANOTHER HAZARD IS DANGEROUS CLOUD-TO-GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF SHOWERS AND THUNDERSTORMS WEDNESDAY MORNING... MAINLY EAST OF THE LOWER COLORADO RIVER VALLEY. THE MAIN HAZARDS ARE LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA...TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. OTHER HAZARDS INCLUDE DANGEROUS CLOUD-TO-GROUND LIGHTNING AND STRONG GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ024-221300- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 609 AM MST TUE SEP 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TODAY... INCREASING TO A CHANCE BY LATE THIS AFTERNOON AND THIS EVENING. SHOWERS AND THUNDERSTORMS WILL BECOME LIKELY LATE TONIGHT. THE MAIN HAZARDS ARE STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA...TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. ANOTHER HAZARD IS DANGEROUS CLOUD-TO-GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SHOWERS AND THUNDERSTORMS ARE LIKELY WEDNESDAY. THE MAIN HAZARDS ARE LOCALLY HEAVY RAIN CAUSING FLOODING OF SMALL STREAMS AND LOW-LYING AREAS. IF YOU COME TO A FLOODED AREA...TURN AROUND...AND IF POSSIBLE...FIND A SAFE WAY TO YOUR DESTINATION. THE WATER MAY BE DEEPER AND/OR STRONGER THAN YOU THINK. OTHER HAZARDS INCLUDE DANGEROUS CLOUD-TO-GROUND LIGHTNING AND STRONG GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ030-032-033-221300- JOSHUA TREE NATIONAL PARK-RIVERSIDE COUNTY/EASTERN DESERTS- IMPERIAL COUNTY- 609 AM PDT TUE SEP 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .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
In the hours before
Special weather statement, Sep 21, 1:53 PM MST, 2 hours 42 minutes before
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</html>Special weather statement, Sep 21, 4:13 PM MST, 22 minutes before
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</html>The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 1:45 PM MST | Flash Flood Watch | PSR | 28 hr | |
| Sep 21, 4:13 PM MST | Special Weather Statement | PSR | Maricopa | 47 min |
| Sep 21, 4:36 PM MST | Special Weather Statement | PSR | 54 min | |
| Sep 21, 4:52 PM MST | Areal Flood Advisory | PSR | Maricopa | 113 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2010Every severe thunderstorm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.