Alert archive / Arizona / Special Weather Statements in 2016

Special Weather Statement, NWS Phoenix, AZ

August 3, 2016La Paz County, Arizona

NWS Phoenix, AZ issued this special weather statement at Aug 3, 2016, 6:21 PM MST for La Paz County, Arizona. It was in force for 24 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 3, 2016, 6:21 PM MST (01:21 UTC)
Expired: Aug 3, 2016, 6:45 PM MST
In force: 24 min
Issued by: NWS Phoenix, AZ

County La Paz County, AZ

The radar

The Yuma radar (KYUX), 198 km from the middle of the area, began a volume at 01:23 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, 1.4 hours before the alert went out and 183 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: 429 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 1484 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

583 
WWUS85 KPSR 040121
SPSPSR

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
621 PM MST WED AUG 3 2016
 
AZZ021-040145-
WEST CENTRAL DESERTS AZ-
621 PM MST WED AUG 3 2016

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHEASTERN LA PAZ COUNTY 

UNTIL 645 PM MST

AT 620 PM MST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BOUSE...OR 21 MILES SOUTHEAST OF PARKER...MOVING EAST AT 6 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BOUSE AND ALAMO STATE PARK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALLY DENSE BLOWING DUST IS POSSIBLE.  IF YOU ENCOUNTER BLOWING
DUST WHILE DRIVING...PULL OVER AS FAR OFF THE ROADWAY AS POSSIBLE AND
PARK. TURN OFF YOUR HEADLIGHTS AND KEEP YOUR FOOT OFF THE BRAKE.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3414 11357 3396 11367 3380 11393 3376 11411
      3391 11402 3425 11394 3426 11386 3423 11384
      3424 11373 3421 11367 3423 11361 3431 11353
TIME...MOT...LOC 0120Z 264DEG 5KT 3398 11394 

$$

SAWTELLE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 5:23 PM MST	Areal Flood Advisory	PSR	Pinal	3 hr
Aug 3, 5:45 PM MST	Special Weather Statement	PSR		45 min
Aug 3, 6:35 PM MST	Special Weather Statement	PSR		25 min
Aug 3, 6:53 PM MST	Special Weather Statement	PSR	La Paz	37 min
Aug 3, 7:39 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 3, 9:50 PM MST	Special Weather Statement	PSR	Maricopa	40 min
Aug 4, 4:25 PM MST	Special Weather Statement	PSR		20 min
Aug 4, 4:45 PM MST	Special Weather Statement	PSR		15 min

Nearby

Special Weather Statements in Arizona, 2016 Every special weather statement in 2016

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.