Alert archive / Arizona / Special Weather Statements in 2021

Special Weather Statement, NWS Phoenix, AZ

July 26, 2021La Paz County, Arizona

NWS Phoenix, AZ issued this special weather statement at Jul 26, 2021, 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
Jul 26, 2021, 6:21 PM MST (01:21 UTC)
Expired
Jul 26, 2021, 6:45 PM MST
In force
24 min
Issued by
NWS Phoenix, AZ

County La Paz County, AZ

The radar

The Yuma radar (KYUX), 150 km from the middle of the area, began a volume at 01:24 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 173 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-pSkew-T log-p diagram, Phoenix, AZ at 00:00Z on 2021-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 00:00Z on 2021-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
5 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
2470 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
-17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

410 
WWUS85 KPSR 270121
SPSPSR

Special Weather Statement
National Weather Service Phoenix AZ
621 PM MST Mon Jul 26 2021
 
AZZ533-270145-
Central La Paz AZ-
621 PM MST Mon Jul 26 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL LA PAZ COUNTY UNTIL 645
PM MST...

At 621 PM MST, Doppler radar was tracking a strong thunderstorm near
Brenda, or 41 miles southeast of Parker. This storm was nearly
stationary.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Vicksburg, Brenda and Vicksburg Junction. 

This includes the following highways...
AZ Interstate 10 between mile markers 34 and 48.
US Highway 60 between mile markers 34 and 48.
AZ Route 72 between mile markers 44 and 48.

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.

&&

LAT...LON 3359 11372 3355 11391 3373 11401 3378 11372
TIME...MOT...LOC 0121Z 169DEG 3KT 3365 11383 

$$

INS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 5:26 PM MSTAreal Flood AdvisoryPSRLa Paz3 hr
Jul 26, 5:32 PM MSTSpecial Weather StatementPSRLa Paz28 min
Jul 26, 6:57 PM MSTFlash Flood Warning Considerable damage threatPSRLa Paz4 hr
Jul 26, 8:47 PM MSTSpecial Weather StatementPSR28 min
Jul 26, 9:24 PM MSTAreal Flood AdvisoryPSRMaricopa3 hr
Jul 27, 1:44 PM MSTFlash Flood Warning Considerable damage threatPSRGila2 hr

Nearby

Special Weather Statements in Arizona, 2021Every 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.