Alert archive / Arizona / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 53, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 6, 2013, 1:27 PM MST for Maricopa County, Arizona. It was in force for 63 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 6, 2013, 1:27 PM MST (20:27 UTC)
- Expired
- Sep 6, 2013, 2:30 PM MST
- In force
- 63 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 20:27 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.
The nearest sounding before it
Phoenix, AZ (KPSR), launched 12:00Z, 8.5 hours before the alert went out and 49 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 16 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 3078 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 6, 9:00 AM MST, 4 hours 27 minutes earlier.
Area forecast discussion, Sep 6, 9:00 AM MST, 4 hours 27 minutes before
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</html>Hazardous weather outlook, Sep 6, 5:55 AM MST, 7 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 555 AM MST FRI SEP 6 2013 AZZ020>028-CAZ030>033-071300- LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS- NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS- SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY- JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA- RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY- 555 AM MST FRI SEP 6 2013 /555 AM PDT FRI SEP 6 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL ARIZONA...EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-CENTRAL ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT. ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT LIGHTNING. STRONG GUSTY THUNDERSTORM OUTFLOW WINDS CAN CREATE AREAS OF BLOWING DUST AND RAPIDLY REDUCE VISIBILITY FOR MOTORISTS...ESPECIALLY IN DUST PRONE LOWER DESERT ELEVATIONS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. MOISTURE WILL BE ON THE INCREASE THIS WEEKEND THROUGH EARLY NEXT WEEK. SCATTERED THUNDERSTORMS WILL BE A POSSIBILITY FROM SATURDAY THROUGH AT LEAST TUESDAY. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAIN AND LOCALIZED FLOODING...STRONG GUSTY WINDS AND FREQUENT LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
In the hours before
Special weather statement, Sep 6, 1:04 PM MST, 23 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 5, 10:08 PM MST | Blowing Dust Advisory | PSR | 52 min | |
| Sep 6, 1:04 PM MST | Special Weather Statement | PSR | Maricopa | 41 min |
| Sep 6, 1:14 PM MST | Blowing Dust Advisory | PSR | 3 hr | |
| Sep 6, 1:14 PM MST | Special Weather Statement | PSR | Maricopa | 31 min |
| Sep 6, 1:39 PM MST | Special Weather Statement | PSR | La Paz | 51 min |
| Sep 6, 1:53 PM MST | Areal Flood Advisory | PSR | Maricopa | 112 min |
| Sep 6, 2:29 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 61 min |
| Sep 6, 3:04 PM MST | Areal Flood Advisory | PSR | Maricopa | 116 min |
| Sep 6, 3:11 PM MST | Special Weather Statement | PSR | Maricopa | 49 min |
| Sep 6, 3:34 PM MST | Special Weather Statement | PSR | 41 min | |
| Sep 6, 3:57 PM MST | Special Weather Statement | PSR | 48 min | |
| Sep 6, 4:06 PM MST | Special Weather Statement | PSR | 39 min | |
| Sep 6, 4:30 PM MST | Dust Storm Warning | PSR | 107 min | |
| Sep 5, 5:22 PM MST | Special Weather Statement | PSR | Riverside | 38 min |
| Sep 6, 3:29 PM MST | Special Weather Statement | PSR | Riverside | 46 min |
| Sep 6, 4:18 PM MST | Areal Flood Advisory | PSR | Riverside | 3 hr |
Nearby
Severe Thunderstorm Warnings in Arizona, 2013Every severe thunderstorm warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.