Alert archive / Arizona / Special Weather Statements in 2013

Special Weather Statement, NWS Phoenix, AZ

July 27, 2013Pinal County, Arizona

NWS Phoenix, AZ issued this special weather statement at Jul 27, 2013, 12:13 AM MST for Pinal County, Arizona. It was in force for 62 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 27, 2013, 12:13 AM MST (07:13 UTC)
Expired
Jul 27, 2013, 1:15 AM MST
In force
62 min
Issued by
NWS Phoenix, AZ

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 3 km from the middle of the area, began a volume at 07:12 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 (KDMA), launched 00:00Z, 7.2 hours before the alert went out and 142 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, Tuscon, AZ at 00:00Z on 2013-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 935 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 00:00Z on 2013-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
935 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1468 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
-60 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 Jul 26, 2:10 PM MST, 10 hours 3 minutes earlier.

Area forecast discussion, Jul 26, 2:10 PM MST, 10 hours 3 minutes before
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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Hazardous weather outlook, Jul 26, 5:36 AM MST, 18 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
536 AM MST FRI JUL 26 2013

AZZ022-023-027-028-271300-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
536 AM MST FRI JUL 26 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL ARIZONA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED
FAVORING THE AFTERNOON AND EVENING HOURS. THE PRIMARY WEATHER HAZARDS
INCLUDE DEADLY LIGHTNING...GUSTY WINDS IN EXCESS OF 40 MPH...AND
LOCALLY HEAVY RAINS LEADING TO FLOODING OF AREA ROADS...WASHES AND
LOW LYING AREAS.

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

GRADUAL DRYING IS EXPECTED DURING THE WEEKEND...CAUSING THUNDERSTORMS
TO BECOME QUITE ISOLATED BY SUNDAY. PRIMARY HAZARDS INCLUDING BRIEF
HEAVY RAIN...GUSTY WINDS IN EXCESS OF 45 MPH...AND DEADLY LIGHTING.

NO WEATHER HAZARDS ARE EXPECTED MONDAY THROUGH THURSDAY ALTHOUGH
THERE WILL BE SOME MOISTURE INCREASING FROM THE EAST WEDNESDAY INTO
THURSDAY LEADING TO A SLIGHT CHANCE OF AFTERNOON OR EVENING STORMS
MAINLY EAST OF PHOENIX.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

AZZ024-271300-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
536 AM MST FRI JUL 26 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL ARIZONA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED...FAVORING THE
AFTERNOON AND EVENING HOURS. PRIMARY WEATHER HAZARDS INCLUDE GUSTY
WINDS IN EXCESS OF 40 MPH...DEADLY LIGHTNING...AND LOCALLY HEAVY RAIN
LEADING TO FLOODING OF ROADS...WASHES AND LOW LYING AREAS.

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

SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED AGAIN ON
SATURDAY WITH THE PRIMARY WEATHER HAZARDS INCLUDING STRONG GUSTY
WINDS...DEADLY LIGHTNING AND LOCALLY HEAVY RAINS. SOME DRYING IS
EXPECTED SUNDAY THROUGH THE MIDDLE OF NEXT WEEK...RESULTING IN ONLY
ISOLATED AFTERNOON AND EVENING THUNDERSTORMS EACH DAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

AZZ020-021-025-026-CAZ030>033-271300-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
536 AM MST FRI JUL 26 2013 /536 AM PDT FRI JUL 26 2013/

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED...AND
THE PRIMARY WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40
MPH...DEADLY LIGHTNING...AND LOCALLY HEAVY RAIN LEADING TO FLOODING
OF ROADS...WASHES AND LOW LYING AREAS.

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

A DRYING TREND FROM THE WEST WILL BEGIN OVER THE WEEKEND AND
AFTERNOON AND EVENING THUNDERSTORMS WILL BECOME VERY ISOLATED. STRONG
GUSTY WINDS AND BRIEF HEAVY RAIN CAN BE EXPECTED FROM THUNDERSTORMS.
NO WEATHER HAZARDS ARE EXPECTED MONDAY THROUGH THURSDAY AS MUCH DRIER
AIR CONTINUES TO SPREAD ACROSS THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 11:00 PM MSTAreal Flood AdvisoryPSRMaricopa2 hr
Jul 26, 11:00 PM MSTSpecial Weather StatementPSRPinal45 min
Jul 26, 11:48 PM MSTAreal Flood AdvisoryPSRMaricopa, Pinal3 hr
Jul 27, 12:24 PM MSTSpecial Weather StatementPSR36 min

Nearby

Special Weather Statements in Arizona, 2013Every special weather statement in 2013

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.