Alert archive / Arizona / Dust Storm Advisories in 2023

Dust Storm Advisory 21, NWS Phoenix, AZ

July 28, 2023Maricopa County, Pinal County, Arizona

NWS Phoenix, AZ issued this dust storm advisory at Jul 28, 2023, 8:27 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 63 min.

The area

The counties it named.

The facts

Issued: Jul 28, 2023, 8:27 PM MST (03:27 UTC)
Expired: Jul 28, 2023, 9:30 PM MST
In force: 63 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon

Counties Maricopa County, AZ, Pinal County, AZ

The radar

The Phoenix radar (KIWA), 29 km from the middle of the area, began a volume at 03:30 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, 3.5 hours before the alert went out and 143 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: 1103 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 3328 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:40 PM MST	Special Weather Statement	PSR		35 min
Jul 28, 7:44 PM MST	Severe Thunderstorm Warning	PSR	Gila	31 min
Jul 28, 8:03 PM MST	Special Weather Statement	PSR	Gila	27 min
Jul 28, 9:03 PM MST	Special Weather Statement	PSR		42 min
Jul 28, 9:46 PM MST	Special Weather Statement	PSR	Pinal	44 min
Jul 28, 10:20 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	4 hr
Jul 29, 3:57 PM MST	Special Weather Statement	PSR	Gila	33 min
Jul 29, 4:29 PM MST	Special Weather Statement	PSR	Gila	31 min

Nearby

Dust Storm Advisories in Arizona, 2023 Every dust storm advisory in 2023

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.