Alert archive / Arizona / Special Weather Statements in 2014

Special Weather Statement, NWS Phoenix, AZ

August 2, 2014Yuma County, Arizona

NWS Phoenix, AZ issued this special weather statement at Aug 2, 2014, 12:34 AM MST for Yuma County, Arizona. It was in force for 56 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 2, 2014, 12:34 AM MST (07:34 UTC)
Expired: Aug 2, 2014, 1:30 AM MST
In force: 56 min
Issued by: NWS Phoenix, AZ

County Yuma County, AZ

The radar

The Yuma radar (KYUX), 49 km from the middle of the area, began a volume at 07:35 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, 7.6 hours before the alert went out and 236 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2763 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 1, 9:35 PM MST, 2 hours 59 minutes earlier.

Area forecast discussion, Aug 1, 9:35 PM MST, 2 hours 59 minutes before

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Hazardous weather outlook, Aug 1, 6:16 AM MST, 18 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
616 AM MST FRI AUG 1 2014

AZZ020>028-CAZ030>033-021330-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
616 AM MST FRI AUG 1 2014 /616 AM PDT FRI AUG 1 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL
ARIZONA...EXTREME SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL
ARIZONA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA...WEST-CENTRAL
ARIZONA...EXTREME SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

THERE WILL BE AT LEAST SLIGHT CHANCES OF THUNDERSTORMS TODAY ON THE
LOWER DESERTS...BETTER OVER THE HIGHER TERRAIN. STORMS WILL BE
CAPABLE OF PRODUCING STRONG WINDS AND HEAVY RAIN. THE STRONGEST
STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WIND AND FLASH
FLOODING. FOR THE LOWER DESERTS...ANTICIPATE SOUTHWEST ARIZONA TO BE
MORE ACTIVE THAN THE PHOENIX AREA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

STORM CHANCES INCREASE REGION WIDE SATURDAY AND SUNDAY THEN TAPER OFF
SHARPLY DURING THE WORK WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD FOLLOW STANDARD REPORTING PROCEDURES.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

In the hours before

Local storm report, Aug 1, 9:24 PM MST, 3 hours 10 minutes before

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Special weather statement, Aug 1, 9:42 PM MST, 2 hours 52 minutes before

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Local storm report, Aug 1, 9:46 PM MST, 2 hours 48 minutes before

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Local storm report, Aug 1, 9:47 PM MST, 2 hours 47 minutes before

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Local storm report, Aug 1, 10:29 PM MST, 2 hours 5 minutes before

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Special weather statement, Aug 2, 12:34 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 1, 5:04 PM MST	Severe Thunderstorm Warning	PSR	Gila	41 min
Aug 1, 5:09 PM MST	Flash Flood Warning	PSR	Gila	111 min
Aug 1, 5:29 PM MST	Special Weather Statement	PSR	Pinal	31 min
Aug 1, 5:38 PM MST	Areal Flood Advisory	PSR	Gila	112 min
Aug 1, 5:43 PM MST	Severe Thunderstorm Warning	PSR	Gila	47 min
Aug 1, 6:31 PM MST	Special Weather Statement	PSR		29 min
Aug 1, 7:38 PM MST	Special Weather Statement	PSR		52 min
Aug 1, 8:23 PM MST	Areal Flood Advisory	PSR	Maricopa	112 min
Aug 1, 8:26 PM MST	Special Weather Statement	PSR	Maricopa	34 min
Aug 1, 8:38 PM MST	Areal Flood Advisory	PSR	Maricopa	4 hr
Aug 1, 9:02 PM MST	Special Weather Statement	PSR	Maricopa	58 min
Aug 1, 9:13 PM MST	Areal Flood Advisory	PSR	Maricopa	4 hr
Aug 1, 9:42 PM MST	Special Weather Statement	PSR	La Paz	48 min
Aug 2, 3:09 AM MST	Flash Flood Watch	PSR		21 hr
Aug 2, 3:09 PM MST	Areal Flood Advisory	PSR	Maricopa	111 min
Aug 2, 3:50 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 2, 4:39 PM MST	Flash Flood Warning	PSR	Maricopa	3 hr
Aug 2, 4:41 PM MST	Flash Flood Warning	PSR	Maricopa	2 hr

Nearby

Special Weather Statements in Arizona, 2014 Every special weather statement in 2014

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.