Alert archive / Arizona / Areal Flood Warnings in 2012
Areal Flood Warning 7, NWS Tucson, AZ
NWS Tucson, AZ issued this areal flood warning at Sep 7, 2012, 7:44 AM MST for Pima County, Arizona. It was in force for 6 hr. 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 7, 2012, 7:44 AM MST (14:44 UTC)
- Expired
- Sep 7, 2012, 1:45 PM MST
- In force
- 6 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 112 km from the middle of the area, began a volume at 14:44 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
Tuscon, AZ (KTUS), launched 12:00Z, 2.7 hours before the alert went out and 84 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
- 1118 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tucson, AZ wrote its last area forecast discussion before this areal flood warning went out at Sep 7, 6:00 AM MST, 1 hour 44 minutes earlier.
Area forecast discussion, Sep 7, 6:00 AM MST, 1 hour 44 minutes before
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</html>Hazardous weather outlook, Sep 6, 10:17 AM MST, 21 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TUCSON AZ 1017 AM MST THU SEP 6 2012 AZZ502>504-506>515-070600- TOHONO O'ODHAM NATION-UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY- TUCSON METRO AREA-SOUTHEAST PINAL COUNTY- UPPER SAN PEDRO RIVER VALLEY- EASTERN COCHISE COUNTY BELOW 5000 FEET-UPPER GILA RIVER VALLEY- WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES- GALIURO AND PINALENO MOUNTAINS-CHIRICAHUA MOUNTAINS- DRAGOON AND MULE AND HUACHUCA AND SANTA RITA MOUNTAINS- CATALINA AND RINCON MOUNTAINS-BABOQUIVARI MOUNTAINS- 1017 AM MST THU SEP 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT EXPECT SCATTERED TO NUMEROUS THUNDERSTORMS THROUGH THIS EVENING FOLLOWED BY A SLIGHT CHANCE OF THUNDERSTORMS LATE TONIGHT. THUNDERSTORM ACTIVITY EXPECTED TO BE ENHANCED AS AN UPPER DISTURBANCE APPROACHES FROM THE SOUTHEAST. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL AND BRIEF STRONG WIND GUSTS APPROACHING 50 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE OF THUNDERSTORMS MAINLY DURING THE AFTERNOON AND EVENING HOURS INTO EARLY NEXT WEEK. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL DUE TO ABUNDANT MOISTURE ACROSS THE AREA. THEREAFTER...A GRADUAL DECREASE IN THUNDERSTORM CHANCES WILL OCCUR BY THE MIDDLE OF NEXT WEEK AS DEEPER MOISTURE MOVES EAST OF THE AREA. HOWEVER...THERE WILL STILL BE ENOUGH MOISTURE TO SUPPORT AT LEAST A SLIGHT CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS TUESDAY AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ505-070600- SOUTH CENTRAL PINAL COUNTY- 1017 AM MST THU SEP 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT EXPECT SCATTERED THUNDERSTORMS THROUGH THIS EVENING FOLLOWED BY A SLIGHT CHANCE OF THUNDERSTORMS LATE TONIGHT. THUNDERSTORM ACTIVITY IS EXPECTED TO BE ENHANCED AS AN UPPER DISTURBANCE APPROACHES FROM THE SOUTHEAST. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL AND BRIEF STRONG WIND GUSTS APPROACHING 50 MPH. ALSO...STRONG THUNDERSTORM OUTFLOW MAY BE GENERATED LEADING TO AREAS BLOWING DUST AND REDUCED VISIBILITIES LATE THIS AFTERNOON AND EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE OF THUNDERSTORMS MAINLY DURING THE AFTERNOON AND EVENING HOURS INTO EARLY NEXT WEEK. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL DUE TO ABUNDANT MOISTURE ACROSS THE AREA. THEREAFTER...A GRADUAL DECREASE IN THUNDERSTORM CHANCES WILL OCCUR BY THE MIDDLE OF NEXT WEEK AS DEEPER MOISTURE MOVES EAST OF THE AREA. HOWEVER...THERE WILL STILL BE ENOUGH MOISTURE TO SUPPORT AT LEAST A SLIGHT CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS TUESDAY AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ501-070600- WESTERN PIMA COUNTY- 1017 AM MST THU SEP 6 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE OF THUNDERSTORMS THROUGH TONIGHT. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL ASSOCIATED WITH THE STRONGEST THUNDERSTORMS RESULTING IN FLASH FLOODING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A CHANCE OF THUNDERSTORMS WILL CONTINUE FRIDAY...PARTICULARLY DURING THE AFTERNOON AND EVENING HOURS. THE MAIN THREAT WILL BE LOCALLY HEAVY RAINFALL DUE TO AMPLE MOISTURE ACROSS THE AREA. THEREAFTER...A GRADUAL DECREASE IN THUNDERSTORM CHANCES WILL OCCUR SATURDAY THROUGH WEDNESDAY. HOWEVER...THERE WILL STILL BE ENOUGH MOISTURE FOR A SLIGHT CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. WEATHER.GOV/TUCSON
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:15 PM MST | Flash Flood Warning | TWC | Pinal | 90 min |
| Sep 6, 5:37 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 38 min |
| Sep 6, 5:54 PM MST | Flash Flood Warning | TWC | Greenlee | 111 min |
| Sep 6, 8:48 PM MST | Flash Flood Warning | TWC | Graham | 117 min |
| Sep 6, 9:14 PM MST | Special Weather Statement | TWC | Graham | 46 min |
| Sep 7, 4:50 AM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Sep 7, 5:47 AM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 12 hr |
| Sep 7, 6:13 AM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Sep 7, 6:21 AM MST | Areal Flood Advisory | TWC | Pima, Pinal | 3 hr |
| Sep 7, 12:55 PM MST | Flash Flood Warning | TWC | Cochise, Santa Cruz | 110 min |
| Sep 7, 1:08 PM MST | Flash Flood Warning | TWC | Cochise | 112 min |
| Sep 7, 1:58 PM MST | Flash Flood Warning | TWC | Cochise | 3 hr |
| Sep 7, 2:45 PM MST | Areal Flood Advisory | TWC | Cochise | 90 min |
| Sep 7, 3:35 PM MST | Areal Flood Advisory | TWC | Cochise | 115 min |
| Sep 7, 3:47 PM MST | Flash Flood Warning | TWC | Greenlee | 118 min |
| Sep 7, 4:52 PM MST | Special Weather Statement | TWC | Graham | 23 min |
Nearby
Areal Flood Warnings in Arizona, 2012Every areal flood warning 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.