Alert archive / Arizona / Special Weather Statements in 2022

Special Weather Statement, NWS Phoenix, AZ

August 9, 2022

NWS Phoenix, AZ issued this special weather statement at Aug 9, 2022, 12:21 AM MST. It was in force for 39 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 9, 2022, 12:21 AM MST (07:21 UTC)
Expired: Aug 9, 2022, 1:00 AM MST
In force: 39 min
Issued by: NWS Phoenix, AZ
Hail: 0.00 in
Wind: 40

The radar

The Phoenix radar (KIWA), 25 km from the middle of the area, began a volume at 07:24 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

Tuscon, AZ (KTUS), launched 00:00Z, 7.4 hours before the alert went out and 166 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: 711 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 2287 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -12 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.

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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 8, 11:22 PM MST, 59 minutes earlier.

Area forecast discussion, Aug 8, 11:22 PM MST, 59 minutes before

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In the hours before

Special weather statement, Aug 8, 8:13 PM MST, 4 hours 8 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
813 PM PDT Mon Aug 8 2022

CAZ565-569-090400-
Imperial County Southeast CA-Palo Verde Valley CA-
813 PM PDT Mon Aug 8 2022

...A strong thunderstorm will impact portions of southeastern
Imperial County through 900 PM PDT...

At 811 PM PDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Algodones Dunes, or 18 miles northwest of Yuma, moving
east at 5 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds will create hazardous driving conditions due to
         more difficult handling conditions and reduced visibility
         in blowing dust.

Locations impacted include...
Algodones Dunes.

This includes CA Interstate 8 between mile markers 79 and 93.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3297 11498 3300 11467 3274 11465 3274 11469
      3275 11470 3274 11471 3272 11494
TIME...MOT...LOC 0311Z 268DEG 5KT 3287 11483

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

AJ

Local storm report, Aug 8, 10:08 PM MST, 2 hours 13 minutes before

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Local storm report, Aug 8, 11:47 PM MST, 34 minutes before

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Local storm report, Aug 8, 11:50 PM MST, 31 minutes before

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Local storm report, Aug 8, 11:52 PM MST, 29 minutes before

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Special weather statement, Aug 9, 12:21 AM MST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 5:36 PM MST	Severe Thunderstorm Warning	PSR	Yuma	39 min
Aug 8, 5:43 PM MST	Special Weather Statement	PSR		47 min
Aug 8, 6:19 PM MST	Special Weather Statement	PSR	Yuma	41 min
Aug 8, 6:46 PM MST	Special Weather Statement	PSR	Gila	44 min
Aug 8, 7:04 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 8, 7:46 PM MST	Special Weather Statement	PSR	Gila	29 min
Aug 8, 7:50 PM MST	Dust Storm Advisory	PSR	La Paz, Yuma	85 min
Aug 9, 12:33 AM MST	Areal Flood Advisory	PSR	Pinal	3 hr
Aug 9, 12:45 AM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	45 min
Aug 9, 1:06 AM MST	Special Weather Statement	PSR		39 min
Aug 9, 1:50 AM MST	Special Weather Statement	PSR	Maricopa	40 min
Aug 9, 1:56 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 9, 2:18 AM MST	Flood Watch	PSR	Gila, La Paz, Maricopa, Pinal, Yuma	23 hr
Aug 9, 2:33 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 9, 12:08 PM MST	Special Weather Statement	PSR	La Paz	52 min
Aug 9, 12:46 PM MST	Severe Thunderstorm Warning	PSR	La Paz	44 min
Aug 9, 1:16 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 9, 1:30 PM MST	Special Weather Statement	PSR	La Paz	45 min
Aug 9, 2:24 PM MST	Special Weather Statement	PSR		51 min
Aug 9, 3:45 PM MST	Special Weather Statement	PSR		45 min
Aug 8, 5:59 PM MST	Severe Thunderstorm Warning	PSR	Imperial	46 min
Aug 8, 6:08 PM MST	Flash Flood Warning Considerable damage threat	PSR	Imperial	4 hr
Aug 8, 6:23 PM MST	Dust Storm Warning	PSR	Imperial	67 min
Aug 8, 6:49 PM MST	Dust Storm Warning	PSR	Imperial, Riverside	56 min
Aug 8, 6:53 PM MST	Severe Thunderstorm Warning	PSR	Imperial	37 min
Aug 8, 7:12 PM MST	Flash Flood Warning Considerable damage threat	PSR	Imperial	3 hr
Aug 8, 8:13 PM MST	Special Weather Statement	PSR	Imperial	47 min
Aug 8, 8:16 PM MST	Areal Flood Advisory	PSR	Imperial	119 min
Aug 8, 8:30 PM MST	Flash Flood Warning Considerable damage threat	PSR	Imperial	4 hr
Aug 8, 9:34 PM MST	Flash Flood Warning Considerable damage threat	PSR	Imperial	3 hr
Aug 9, 4:32 PM MST	Special Weather Statement	PSR	Imperial	43 min
Aug 9, 4:59 PM MST	Dust Storm Advisory	PSR	Imperial	46 min

Nearby

Special Weather Statements in Arizona, 2022 Every special weather statement in 2022

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.