Alert archive / Arizona / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 29, NWS Phoenix, AZ

August 12, 2011Gila County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 12, 2011, 4:28 PM MST for Gila County, Arizona. It was in force for 62 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 12, 2011, 4:28 PM MST (23:28 UTC)
Expired: Aug 12, 2011, 5:30 PM MST
In force: 62 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon

County Gila County, AZ

The radar

The Phoenix radar (KIWA), 106 km from the middle of the area, began a volume at 23:27 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.

What was reported inside it

Time	Report	Where	Remark
Aug 12, 4:45 PM MST	TSTM WND DMG	San Carlos, AZ	DOWNED TREES, TIME ESTIMATED BASED ON RADAR DATA.
Aug 12, 4:50 PM MST	TSTM WND DMG	San Carlos, AZ	NUMEROUS POWER POLES DOWN IN AND AROUND SAN CARLOS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 17 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Phoenix, AZ (KPSR), launched 12:00Z, 11.5 hours before the alert went out and 134 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 51 J/kg
Mixed-layer CIN: -277 J/kg
Mixed-layer LCL: 1896 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

101 
WUUS55 KPSR 122328
SVRPSR
AZC007-130030-
/O.NEW.KPSR.SV.W.0029.110812T2328Z-110813T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
428 PM MST FRI AUG 12 2011

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA...
  THIS INCLUDES THE CITY OF GLOBE...

* UNTIL 530 PM MST

* AT 423 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  SAN CARLOS...OR 13 MILES EAST OF GLOBE...AND MOVING SOUTHWEST AT 10
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CUTTER AND CLAYPOOL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING.
MOVE TO SHELTER INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS.

&&

LAT...LON 3338 11042 3338 11043 3337 11044 3333 11044
      3313 11070 3346 11089 3355 11049
TIME...MOT...LOC 2328Z 063DEG 8KT 3340 11053

$$

WOODALL

3 follow-up statements

351 
WWUS55 KPSR 122347
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
447 PM MST FRI AUG 12 2011

AZC007-130030-
/O.CON.KPSR.SV.W.0029.000000T0000Z-110813T0030Z/
GILA AZ-
447 PM MST FRI AUG 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR SOUTH CENTRAL GILA COUNTY...

AT 445 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS
LOCATED NEAR SAN CARLOS...OR 16 MILES EAST OF GLOBE...MOVING
SOUTHWEST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
GLOBE...CUTTER AND CLAYPOOL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS......AND DEADLY CLOUD TO GROUND
LIGHTNING. MOVE TO SHELTER INSIDE A STRONG BUILDING. STAY AWAY FROM
WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

&&

LAT...LON 3338 11042 3338 11043 3337 11044 3333 11044
      3313 11070 3346 11089 3355 11049
TIME...MOT...LOC 2346Z 060DEG 8KT 3332 11049

$$

WOODALL

696 
WWUS55 KPSR 130000
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
500 PM MST FRI AUG 12 2011

AZC007-130030-
/O.CON.KPSR.SV.W.0029.000000T0000Z-110813T0030Z/
GILA AZ-
500 PM MST FRI AUG 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR SOUTH CENTRAL GILA COUNTY...

AT 455 PM MST...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
 THIS STORM WAS 6 MILES SOUTHWEST OF SAN CARLOS...OR 20 MILES EAST 
OF GLOBE...MOVING SOUTHWEST AT 10 MPH. OTHER STRONG TO SEVERE STORMS 
WERE LOCATED 10 MILES EAST AND 20 MILES NORTHEAST OF GLOBE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CUTTER
AND CLAYPOOL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS......AND DEADLY CLOUD TO GROUND
LIGHTNING. MOVE TO SHELTER INSIDE A STRONG BUILDING. STAY AWAY FROM
WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

&&

LAT...LON 3338 11042 3338 11043 3337 11044 3333 11044
      3313 11070 3346 11089 3355 11049
TIME...MOT...LOC 2359Z 060DEG 8KT 3331 11052

$$

WOODALL

232 
WWUS55 KPSR 130017
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
517 PM MST FRI AUG 12 2011

AZC007-130030-
/O.CON.KPSR.SV.W.0029.000000T0000Z-110813T0030Z/
GILA AZ-
517 PM MST FRI AUG 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR SOUTH CENTRAL GILA COUNTY...

AT 514 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS 
LOCATED NEAR GLOBE...MOVING SOUTHWEST AT 10 MPH.  OTHER STRONG TO 
SEVERE STORMS WERE 12 MILES SOUTH OF CUTTER AND 15 MILES NORTH OF 
GLOBE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CLAYPOOL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNING AREA...GO INSIDE A STURDY BUILDING.
REMEMBER...A SEVERE THUNDERSTORM WILL PRODUCE DAMAGING WINDS AND
DEADLY LIGHTNING

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

&&

LAT...LON 3334 11050 3330 11048 3313 11070 3346 11089
      3352 11063
TIME...MOT...LOC 0017Z 060DEG 8KT 3339 11073

$$

WOODALL

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 Aug 12, 4:21 PM MST, 7 minutes earlier.

Area forecast discussion, Aug 12, 4:21 PM MST, 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
421 PM MST FRI AUG 12 2011

.UPDATE...UPDATED AVIATION DISCUSSION.

&&

.SYNOPSIS...
INCREASED MONSOON HUMIDITY AND WEAK DISTURBANCES MOVING NORTH FROM
MEXICO WILL CONTINUE A THREAT OF MAINLY AFTERNOON AND EVENING
SHOWERS AND THUNDERSTORMS OVER SOUTHWEST AND SOUTH CENTRAL AZ
THROUGH SATURDAY. A DRIER AND MORE STABLE AIRMASS WILL MOVE INTO THE
REGION SUNDAY THROUGH NEXT TUESDAY...HELPING TO INCREASE AFTERNOON
TEMPERATURES...AND LIMITING SHOWER AND THUNDERSTORM ACTIVITY TO THE
MOUNTAINS OF SOUTH CENTRAL ARIZONA.

&&

.DISCUSSION...
TONIGHT...
DEEP MONSOON MOISTURE OVER THE SOUTHERN HALF OF AZ...WITH AN
INVERTED TROF MOVING NORTH FROM MEXICO /BEST SEEN IN WATER VAPOR
IMAGERY/ WOULD BODE WELL FOR ELEVATED PROBABILITIES OF PRECIP THIS
EVENING. HOWEVER THE EFFECTS FROM THE INVERTED TROF ARE NOT CLEAR
CUT...AND FRANKLY A LITTLE PUZZLING. THERE WAS A REFLECTION OF THIS
TROF AT 500 AND 300 MB...HOWEVER HIGHER UP AT 250 AND 200 MB
RELATIVELY STRONG 40 KNOT PLUS SEMI STABLE ANTICYCLONIC FLOW COVERED
THE REGION.

EARLIER IN THE AFTERNOON THERE WERE LIGHTNING STRIKES ON THE
SOUTHWESTERN PORTIONS OF THE GREATER PHOENIX AREA...NEAR BUCKEYE.

DESPITE THE HARD TO INTERPRET PLOT AND MODEL DATA...THE PRESENCE OF
THE INVERTED TROF AND DEEP BOUNDARY LAYER MOISTURE WARRANTS A
CONTINUATION OF SHOWER/TSTM THREATS ACROSS THE ENTIRE FORECAST AREA
THE REMAINDER OF THE AFTERNOON AND TONIGHT.

SATURDAY...
THE WEAK INVERTED TROF WILL MOVE INTO NORTHERN AZ BY SATURDAY
AFTERNOON. IN THE WAKE OF THIS TROF...THE THREATS OF AFTERNOON AND
EVENING TSTM ACTIVITY WILL DECREASE SATURDAY.

SUNDAY THROUGH TUESDAY...
A DRIER...WARMER...AND MORE STABLE AIRMASS FROM THE WEST WILL SPREAD
INTO THE REGION. SHOWER/TSTM THREATS WILL BE CONFINED TO THE
MOUNTAINS OF SOUTHERN GILA COUNTY ZONE 24 EAST OF PHOENIX.

WEDNESDAY THROUGH FRIDAY...
MONSOON MOISTURE IS EXPECTED TO SPREAD BACK INTO THE REGION WITH AN
INCREASING CHANCE OF AFTERNOON/EVENING SHOWER/TSTM ACTIVITY.

&&

.AVIATION...
SOUTH-CENTRAL  ARIZONA...INCLUDING KPHX AND KIWA...
CONVECTION HAS DEVELOPED ACROSS SOUTHERN GILA COUNTY. WHILE I DO NOT
BELIEVE ANY STORMS WILL MAKE IT TO PHX/IWA...I DO BELIEVE THERE WILL
BE AN OUTFLOW BOUNDARY THAT SHIFTS THE WINDS TO THE EAST AT BOTH
SITES AFTER 02Z. I REFINED THE TAF\S JUST A BIT TO REFLECT THE
POSSIBILITY OF AN OUTFLOW THIS EVENING...OTHERWISE THE PREVIOUS TAFS
LOOKED IN GOOD SHAPE. ASIDE FROM SOME DEBRIS CIRRUS...AVIATION
CONCERNS SHOULD BE NIL.

SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA...INCLUDING KIPL AND
KBLH...
MOSTLY CLEAR SKIES AND LIGHT WINDS WILL PREVAIL AT BOTH SITES
THROUGH SATURDAY AFTERNOON.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER...
MONDAY THROUGH FRIDAY...
CONTINUING HIGH PRESSURE COMBINING WITH DRIER WESTERLY FLOW ALOFT
WILL PUSH BACK MONSOONAL MOISTURE TO OUR SOUTHEAST...SUPPORTING
SOMEWHAT DRIER RELATIVE HUMIDITIES WITH NEAR NORMAL TEMPERATURES
EXPECTED. WINDS WILL FOLLOW THEIR FAVORED DIURNAL PATTERNS. MOISTURE
WILL BEGIN TO FLOW BACK INTO THE REGION BY WEDNESDAY...RETURNING THE
REGION TO A GENERAL SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOONS.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...NONE.

CA...NONE.

&&

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

DISCUSSION...VASQUEZ
AVIATION...LEINS
FIRE WEATHER...DEWEY/NOLTE

Hazardous weather outlook, Aug 12, 6:01 AM MST, 10 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
601 AM MST FRI AUG 12 2011

AZZ022-023-027-028-131300-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
601 AM MST FRI AUG 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

THERE WILL BE A SLIGHT CHANCE FOR MAINLY LATE AFTERNOON AND EVENING
THUNDERSTORMS. THE PRIMARY WEATHER HAZARDS WILL BE GUSTY WINDS IN
EXCESS OF 45 MPH...LOCALLY HEAVY RAINFALL AND SOME DENSE BLOWING
DUST. DANGEROUS CLOUD TO GROUND LIGHTNING IS ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE WILL BE ANOTHER SLIGHT CHANCE FOR MAINLY LATE AFTERNOON AND
EVENING THUNDERSTORMS ON SATURDAY. DRIER CONDITIONS ARE EXPECTED
SUNDAY INTO MONDAY...AND THUNDERSTORMS ARE NOT EXPECTED. HOWEVER
MOISTURE WILL RETURN TUESDAY EVENING LEADING TO A CONTINUED SLIGHT
CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS THROUGH THURSDAY.

THE MAIN WEATHER HAZARDS WITH THE THUNDERSTORMS INCLUDE GUSTY WINDS
IN EXCESS OF 45 MPH...DENSE BLOWING DUST...LOCALLY HEAVY RAIN AND
DEADLY CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ024-131300-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
601 AM MST FRI AUG 12 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

A CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS IS EXPECTED. THE
PRIMARY WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40
MPH...LOCALLY HEAVY RAINFALL AND DEADLY CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A CHANCE FOR MAINLY AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE
THROUGH THE WEEKEND. A DRYING TREND WILL REDUCE THE THREAT FOR
THUNDERSTORMS MONDAY THROUGH THE LATTER PORTION OF THE WEEK. PRIMARY
WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40 MPH...LOCALLY
HEAVY RAIN AND DEADLY CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ020-021-025-026-CAZ030>033-131300-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
601 AM MST FRI AUG 12 2011 /601 AM PDT FRI AUG 12 2011/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWEST
ARIZONA...EXTREME WEST-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-
CENTRAL ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST
CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A WEAK AREA OF LOW PRESSURE MOVING THROUGH THE AREA WILL LEAD TO A
SLIGHT CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS. THE PRIMARY
WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 45 MPH...LOCALLY
HEAVY RAINFALL...SOME DENSE BLOWING DUST AND SAND...AND DEADLY CLOUD
TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A SLIGHT CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS WILL PERSIST
INTO SATURDAY. A DRYING TREND FROM THE SOUTHWEST WILL ELIMINATE THE
THREAT FOR THUNDERSTORMS SUNDAY INTO THE MIDDLE OF NEXT WEEK. THE
MAIN WEATHER HAZARDS SATURDAY INCLUDE GUSTY WINDS IN EXCESS OF 45
MPH...BRIEF HEAVY RAIN...SOME BLOWING DUST AND SAND AND DEADLY CLOUD
TO GROUND LIGHTNING.

.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

In the hours before

Special weather statement, Aug 12, 3:21 PM MST, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
321 PM MST FRI AUG 12 2011

AZZ024-122315-
GILA AZ-
321 PM MST FRI AUG 12 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  EAST CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA

UNTIL 415 PM MST

AT 317 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 11 MILES NORTHEAST OF SAWMILL...MOVING WEST AT 5
MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
   SAWMILL AND  HILLTOP...

LAT...LON 3349 11050 3380 11059 3382 11030 3370 11015
      3365 11014
TIME...MOT...LOC 2222Z 076DEG 6KT 3372 11027

LEINS

Special weather statement, Aug 12, 4:16 PM MST, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
416 PM MST FRI AUG 12 2011

AZZ024-130000-
GILA AZ-
416 PM MST FRI AUG 12 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTH CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA

UNTIL 500 PM MST

AT 413 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 9 MILES SOUTH OF HILLTOP...MOVING WEST AT 10 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
   SAN CARLOS...GLOBE...AND MIAMI

SOME UNSECURED OBJECTS WILL BE BLOWN AROUND...TREE LIMBS COULD BE
SNAPPED OFF...AND ISOLATED POWER OUTAGES WILL BE POSSIBLE. SEEK
SHELTER INDOORS UNTIL THE STORM PASSES.

VERY HEAVY RAINFALL MAY CAUSE TEMPORARY PONDING ON SOME ROADS AND
MINOR FLOODING OF POOR DRAINAGE AREAS. IN HEAVY RAINFALL SLOW DOWN TO
REDUCE THE RISK OF HYDROPLANING...AND LEAVE A SAFE DISTANCE BETWEEN
YOURSELF AND OTHER VEHICLES.

LAT...LON 3339 11036 3340 11040 3337 11044 3332 11044
      3319 11076 3361 11092 3370 11048 3341 11034
TIME...MOT...LOC 2316Z 071DEG 10KT 3350 11049

WOODALL

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 11, 5:37 PM MST	Areal Flood Advisory	PSR	Gila	113 min
Aug 11, 6:42 PM MST	Special Weather Statement	PSR		48 min
Aug 12, 3:21 PM MST	Special Weather Statement	PSR	Gila	54 min
Aug 12, 3:49 PM MST	Areal Flood Advisory	PSR	Gila	116 min
Aug 12, 4:16 PM MST	Special Weather Statement	PSR	Gila	44 min
Aug 12, 4:56 PM MST	Areal Flood Advisory	PSR	Gila	2 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2011 Every severe thunderstorm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.