Alert archive / Arizona / Special Weather Statements in 2012

Special Weather Statement, NWS Phoenix, AZ

October 11, 2012Gila County, Arizona

NWS Phoenix, AZ issued this special weather statement at Oct 11, 2012, 11:29 PM MST for Gila County, Arizona. It was in force for 46 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: Oct 11, 2012, 11:29 PM MST (06:29 UTC)
Expired: Oct 12, 2012, 12:15 AM MST
In force: 46 min
Issued by: NWS Phoenix, AZ

County Gila County, AZ

The radar

The Phoenix radar (KIWA), 113 km from the middle of the area, began a volume at 06:32 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 00:00Z, 6.5 hours before the alert went out and 168 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3000 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 197 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.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 6:11 PM MST	Areal Flood Advisory	PSR	Maricopa	109 min
Oct 11, 6:35 PM MST	Flash Flood Warning	PSR	Maricopa	3 hr
Oct 11, 7:50 PM MST	Special Weather Statement	PSR		40 min
Oct 11, 7:57 PM MST	Special Weather Statement	PSR		33 min
Oct 11, 9:59 PM MST	Areal Flood Advisory	PSR	Gila, Maricopa, Pinal	106 min

Nearby

Special Weather Statements in Arizona, 2012 Every 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.