Alert archive / Arizona / Special Weather Statements in 2012
Special Weather Statement, NWS Phoenix, AZ
NWS Phoenix, AZ issued this special weather statement at Aug 13, 2012, 1:49 PM MST for La Paz County, Arizona. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2012, 1:49 PM MST (20:49 UTC)
- Expired
- Aug 13, 2012, 2:30 PM MST
- In force
- 41 min
- Issued by
- NWS Phoenix, AZ
County La Paz County, AZ
The radar
The Yuma radar (KYUX), 108 km from the middle of the area, began a volume at 20:49 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
Yuma Intl Airpor, AZ (KYUM), launched 12:00Z, 8.8 hours before the alert went out and 90 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
- 383 J/kg
- Mixed-layer CIN
- -350 J/kg
- Mixed-layer LCL
- 3371 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 13, 9:05 AM MST, 4 hours 44 minutes earlier.
Area forecast discussion, Aug 13, 9:05 AM MST, 4 hours 44 minutes before
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</html>Hazardous weather outlook, Aug 13, 5:33 AM MST, 8 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 533 AM MST MON AUG 13 2012 AZZ024-141300- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- 533 AM MST MON AUG 13 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT. THERE IS CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS...PRIMARILY AREAS EAST OF GLOBE. THE MAIN WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40 MPH...BRIEF HEAVY RAIN AND DEADLY LIGHTNING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE WILL BE AN INCREASING CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS BEGINNING WEDNESDAY AND CONTINUING THROUGH THE WEEKEND. THE MAIN WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40 MPH...LOCALLY HEAVY RAINFALL AND LOCALIZED FLOODING OF STREAMS...ROADS AND WASHES...AND DEADLY CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. AZZ022-023-027-028-141300- NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA- SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY- 533 AM MST MON AUG 13 2012 ...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 5 AM MST WEDNESDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL ARIZONA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. EXCESSIVE HEAT WARNING. AN EXCESSIVE HEAT WARNING CONTINUES THROUGH TONIGHT FOR THE SOUTH CENTRAL ARIZONA DESERTS INCLUDING THE GREATER PHOENIX AREA. HIGH TEMPERATURES MAY EXCESS 115 DEGREES OVER THE HOTTEST DESERTS. LOW TEMPERATURES WILL RANGE FROM MID 80S TO AROUND 90 OVER THE WARMER URBAN AREAS OFFERING LITTLE RELIEF FROM OPPRESSIVE DAYTIME HEAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. EXCESSIVE HEAT WARNING. AN EXCESSIVE HEAT WARNING CONTINUES THROUGH 5 AM WEDNESDAY FOR THE SOUTH CENTRAL ARIZONA DESERTS INCLUDING THE GREATER PHOENIX AREA. HIGH TEMPERATURES TUESDAY WILL EXCEED 110 OVER MUCH OF THE LOWER DESERT AND NIGHTTIME LOWS WILL RANGE FROM THE MID 80S TO AROUND 90 OFFERING LITTLE RELIEF FROM OPPRESSIVE DAYTIME HEAT. THERE WILL BE AN INCREASING CHANCE FOR MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS BEGINNING WEDNESDAY...CONTINUING THROUGH THE WEEKEND. THE BEST CHANCES FOR THUNDERSTORMS WILL LIKELY BE THURSDAY THROUGH SATURDAY. THE MAIN WEATHER HAZARDS TO BE EXPECTED INCLUDE GUSTY WINDS IN EXCESS OF 45 MPH...BLOWING DUST AND SAND WITH SHARPLY REDUCED VISIBILITY...LOCALLY HEAVY RAINFALL AND DEADLY CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. 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- 533 AM MST MON AUG 13 2012 /533 AM PDT MON AUG 13 2012/ ...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 5 AM MST /5 AM PDT/ WEDNESDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST- CENTRAL ARIZONA AND EXTREME SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. EXCESSIVE HEAT WARNING. AN EXCESSIVE HEAT WARNING CONTINUES THROUGH TONIGHT FOR THE DESERTS OF SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA. HIGH TEMPERATURES WILL RANGE BETWEEN 110 AND 115 OVER THE HOTTEST DESERTS AND OVERNIGHT LOWS WILL RANGE FROM MID 80S TO AROUND 90 OFFERING LITTLE RELIEF FROM THE OPPRESSIVE DAYTIME HEAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. EXCESSIVE HEAT WARNING. AN EXCESSIVE HEAT WARNING CONTINUES THROUGH 5 AM WEDNESDAY FOR THE DESERTS OF SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA. DAYTIME HIGHS TUESDAY WILL EXCEED 110 OVER MANY OF THE HOTTER DESERTS AND OVERNIGHT LOWS WILL RANGE FROM MID 80S TO NEAR 90 OVER THE WARMER URBAN AREAS...OFFERING LITTLE RELIEF FROM THE OPPRESSIVE DAYTIME HEAT. INCREASING MONSOON MOISTURE IS EXPECTED BEGINNING WEDNESDAY...CONTINUING INTO THE WEEKEND. THIS WILL ALLOW FOR AN INCREASING THREAT OF THUNDERSTORMS. THE BEST CHANCES WILL BE OVER THE SOUTHWEST DESERTS THURSDAY THROUGH SATURDAY. PRIMARY WEATHER HAZARDS ASSOCIATED WITH THE THUNDERSTORMS INCLUDE GUSTY WINDS IN EXCESS OF 45 MPH...BLOWING DUST AND SAND WITH SHARPLY REDUCED VISIBILITY...LOCALLY HEAVY RAIN AND DEADLY LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. CAZ030-141300- JOSHUA TREE NATIONAL PARK- 533 AM PDT MON AUG 13 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. HAZARDOUS WEATHER IS NOT EXPECTED TUESDAY THROUGH WEDNESDAY. THERE WILL BE INCREASING MONSOON MOISTURE ALONG WITH A SLIGHT CHANCE FOR MAINLY AFTERNOON AND EVENING THUNDERSTORMS STARTING THURSDAY AND CONTINUING THROUGH THE WEEKEND. THE PRIMARY WEATHER HAZARDS INCLUDE GUSTY WIND IN EXCESS OF 40 MPH...LOCALLY HEAVY RAIN AND DEADLY LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED. NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX
In the hours before
Special weather statement, Aug 13, 1:49 PM MST, 0 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 |
|---|---|---|---|---|
| Aug 12, 5:29 PM MST | Special Weather Statement | PSR | 76 min | |
| Aug 12, 5:31 PM MST | Blowing Dust Advisory | PSR | 89 min | |
| Aug 12, 6:30 PM MST | Special Weather Statement | PSR | La Paz | 75 min |
| Aug 12, 7:01 PM MST | Special Weather Statement | PSR | 74 min | |
| Aug 12, 7:30 PM MST | Special Weather Statement | PSR | 75 min | |
| Aug 12, 8:30 PM MST | Areal Flood Advisory | PSR | La Paz | 105 min |
| Aug 12, 11:48 PM MST | Special Weather Statement | PSR | Maricopa | 42 min |
| Aug 13, 4:26 PM MST | Special Weather Statement | PSR | La Paz | 49 min |
| Aug 13, 4:46 PM MST | Special Weather Statement | PSR | 59 min | |
| Aug 13, 3:53 PM MST | Special Weather Statement | PSR | Imperial | 52 min |
| Aug 13, 3:54 PM MST | Blowing Dust Advisory | PSR | 8 min | |
| Aug 13, 4:02 PM MST | Dust Storm Warning | PSR | 58 min | |
| Aug 13, 4:19 PM MST | Special Weather Statement | PSR | Imperial | 56 min |
| Aug 13, 4:28 PM MST | Severe Thunderstorm Warning | PSR | Imperial | 37 min |
| Aug 13, 4:40 PM MST | Areal Flood Advisory | PSR | Imperial | 110 min |
| Aug 13, 4:59 PM MST | Blowing Dust Advisory | PSR | 61 min |
Nearby
Special Weather Statements in Arizona, 2012Every special weather statement in 2012
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.