Alert archive / Arizona / Special Weather Statements in 2021

Special Weather Statement, NWS Phoenix, AZ

June 30, 2021Gila County, Arizona

NWS Phoenix, AZ issued this special weather statement at Jun 30, 2021, 2:13 PM MST for Gila County, Arizona. It was in force for 32 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: Jun 30, 2021, 2:13 PM MST (21:13 UTC)
Expired: Jun 30, 2021, 2:45 PM MST
In force: 32 min
Issued by: NWS Phoenix, AZ

County Gila County, AZ

The radar

The Phoenix radar (KIWA), 48 km from the middle of the area, began a volume at 21:14 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 12:00Z, 9.2 hours before the alert went out and 73 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: 301 J/kg
Mixed-layer CIN: -210 J/kg
Mixed-layer LCL: 2430 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -54 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

511 
WWUS85 KPSR 302113
SPSPSR

Special Weather Statement
National Weather Service Phoenix AZ
213 PM MST Wed Jun 30 2021
 
AZZ552-558-302145-
Superior AZ-Pinal/Superstition Mountains AZ-
213 PM MST Wed Jun 30 2021

...SIGNIFICANT WEATHER ADVISORY FOR MARICOPA AND PINAL COUNTIES UNTIL
245 PM MST...

At 212 PM MST, Doppler radar was tracking a strong thunderstorm 10
miles south of Apache Lake, or 11 miles northwest of Superior. This
storm was nearly stationary.

Pea size hail and wind gusts up to 50 mph will be possible with this
storm.

This storm will remain over mainly rural areas of Maricopa and Pinal
Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3335 11124 3346 11130 3357 11111 3340 11103
TIME...MOT...LOC 2112Z 239DEG 4KT 3344 11121 

$$

LJH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 2:11 AM MST	Special Weather Statement	PSR	La Paz	19 min
Jun 30, 2:34 AM MST	Areal Flood Advisory	PSR	La Paz	116 min
Jun 30, 8:35 AM MST	Special Weather Statement	PSR	La Paz	55 min
Jun 30, 9:31 AM MST	Special Weather Statement	PSR	La Paz	59 min
Jun 30, 10:35 AM MST	Special Weather Statement	PSR	La Paz	55 min
Jun 30, 2:06 PM MST	Special Weather Statement	PSR	Pinal	24 min
Jun 30, 4:08 PM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	4 hr
Jun 30, 4:19 PM MST	Special Weather Statement	PSR	Gila	41 min
Jun 30, 4:21 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	3 hr

Nearby

Special Weather Statements in Arizona, 2021 Every special weather statement in 2021

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.