Alert archive / Arizona / Special Weather Statements in 2015

Special Weather Statement, NWS Phoenix, AZ

August 1, 2015Gila County, Arizona

NWS Phoenix, AZ issued this special weather statement at Aug 1, 2015, 5:14 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: Aug 1, 2015, 5:14 PM MST (00:14 UTC)
Expired: Aug 1, 2015, 6:00 PM MST
In force: 46 min
Issued by: NWS Phoenix, AZ

County Gila County, AZ

The radar

The Phoenix radar (KIWA), 91 km from the middle of the area, began a volume at 00:14 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 00:00Z, 0.2 hours before the alert went out and 112 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: 218 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 2492 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 27 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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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 1, 2:50 PM MST, 2 hours 24 minutes earlier.

Area forecast discussion, Aug 1, 2:50 PM MST, 2 hours 24 minutes before

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In the hours before

Special weather statement, Aug 1, 4:02 PM MST, 1 hour 12 minutes before

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Special weather statement, Aug 1, 5:14 PM MST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
514 PM MST SAT AUG 1 2015

AZZ024-020100-
SOUTHERN GILA/TONTO NF FOOTHILLS AZ-
514 PM MST SAT AUG 1 2015

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  CENTRAL GILA COUNTY

UNTIL 600 PM MST

AT 514 PM MST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10
MILES SOUTHEAST OF MILEPOST 275 ON SR 288...OR 16 MILES EAST OF
ROOSEVELT...MOVING NORTH AT 5 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF CENTRAL GILA
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3374 11063 3354 11077 3360 11098 3372 11096
      3364 11092 3368 11084 3366 11078 3376 11070
TIME...MOT...LOC 0014Z 199DEG 4KT 3364 11085

HIRSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 6:35 PM MST	Special Weather Statement	PSR	Gila	40 min
Aug 1, 8:34 PM MST	Special Weather Statement	PSR	Gila	41 min
Aug 1, 9:07 PM MST	Areal Flood Advisory	PSR	Gila	3 hr
Aug 1, 9:30 PM MST	Areal Flood Advisory	PSR	Gila	5 hr
Aug 1, 10:49 PM MST	Special Weather Statement	PSR	Gila	41 min

Nearby

Special Weather Statements in Arizona, 2015 Every special weather statement in 2015

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.