Alert archive / Arizona / Special Weather Statements in 2012

Special Weather Statement, NWS Tucson, AZ

September 3, 2012Santa Cruz County, Arizona

NWS Tucson, AZ issued this special weather statement at Sep 3, 2012, 3:03 PM MST for Santa Cruz County, Arizona. It was in force for 42 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
Sep 3, 2012, 3:03 PM MST (22:03 UTC)
Expired
Sep 3, 2012, 3:45 PM MST
In force
42 min
Issued by
NWS Tucson, AZ

County Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 51 km from the middle of the area, began a volume at 22:04 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, 10.1 hours before the alert went out and 243 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 12:00Z on 2012-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 165 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, Phoenix, AZ at 12:00Z on 2012-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -46 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
165 J/kg
Mixed-layer CIN
-306 J/kg
Mixed-layer LCL
2142 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-46 m²/s²
0-3 km storm-relative helicity
15 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.

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Tucson, AZ wrote its last area forecast discussion before this special weather statement went out at Sep 3, 9:30 AM MST, 5 hours 33 minutes earlier.

Area forecast discussion, Sep 3, 9:30 AM MST, 5 hours 33 minutes before
<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Sep 3, 11:20 AM MST, 3 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE TUCSON AZ
1120 AM MST MON SEP 3 2012

CORRECTION TO ADD SECOND PARAGRAPH IN DAY TWO THRU SEVEN SECTION

AZZ503-507-508-513-040600-
UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-
UPPER SAN PEDRO RIVER VALLEY-
EASTERN COCHISE COUNTY BELOW 5000 FEET-
DRAGOON AND MULE AND HUACHUCA AND SANTA RITA MOUNTAINS-
1120 AM MST MON SEP 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA.

.DAY ONE...TODAY AND TONIGHT

MOISTURE VALUES HAVE INCREASED IN THE PAST 24 HOURS AND COMBINED
WITH A WEAK UPPER LEVEL DISTURBANCE MOVING NORTH ACROSS NORTHERN
SONORA MEXICO...EXPECTED WIDESPREAD SHOWERS AND SCATTERED
THUNDERSTORMS THIS AFTERNOON AND EVENING. SOME OF THE STRONGER
STORMS WILL PRODUCE HEAVY RAIN AND WIND GUSTS TO 50 MPH. LOCALIZED
RAINFALL TOTALS OF ONE TO TWO INCHES WILL INCREASE THE CHANCES FOR
FLASH FLOODING TO OCCUR.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DEEPER MOISTURE WILL MOVE ACROSS THE AREA TUESDAY AND WEDNESDAY.
THUS EXPECT TYPICAL SUMMER THUNDERSTORM ACTIVITY. MAIN THREAT FROM
STORMS WILL BE HEAVY RAIN AND WIND GUSTS TO 45 MPH. THERE WILL BE
FLASH FLOODING CONCERNS BOTH TUESDAY AND WEDNESDAY.

SOME DRIER AIR PUSHES IN THURSDAY INTO THE WEEKEND...BUT ENOUGH
MOISTURE WILL BE AROUND FOR A CHANCE OF STORMS EACH AFTERNOON AND
EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ502-515-040600-
TOHONO O'ODHAM NATION-BABOQUIVARI MOUNTAINS-
1120 AM MST MON SEP 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL BE DEVELOPING THIS AFTERNOON
AND CONTINUING INTO THE EVENING HOURS. AS HAS BEEN THE CASE FOR
THE PAST COUPLE OF DAYS...SOME OF THESE STORMS WILL CAPABLE OF
PRODUCING HEAVY RAIN AND WIND GUSTS TO 50 MPH. ISOLATED AREAS OVER
THE PAST COUPLE OF EVENINGS HAVE RECEIVED UP TO TWO INCHES OF
RAIN...SO ANY ADDITIONAL RAINFALL WILL BRING ABOUT FLASH FLOODING
ISSUES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DEEPER MOISTURE WILL MOVE ACROSS THE AREA TUESDAY AND WEDNESDAY.
THUS EXPECT TYPICAL SUMMER THUNDERSTORM ACTIVITY. MAIN THREAT FROM
STORMS WILL BE HEAVY RAIN AND WIND GUSTS TO 45 MPH. THERE WILL BE
FLASH FLOODING CONCERNS BOTH TUESDAY AND WEDNESDAY.

SOME DRIER AIR PUSHES IN THURSDAY INTO THE WEEKEND...BUT ENOUGH
MOISTURE WILL BE AROUND FOR A CHANCE OF STORMS EACH AFTERNOON AND
EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ504>506-514-040600-
TUCSON METRO AREA-SOUTH CENTRAL PINAL COUNTY-
SOUTHEAST PINAL COUNTY-CATALINA AND RINCON MOUNTAINS-
1120 AM MST MON SEP 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL BE
DEVELOPING THIS AFTERNOON AND CONTINUING INTO THE EVENING HOURS.
MAIN THREAT FROM STORMS WILL BE WIND GUSTS TO 50 MPH AND BRIEF
HEAVY RAIN WHICH MAY CAUSE MINOR FLOODING ISSUES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DEEPER MOISTURE WILL MOVE ACROSS THE AREA TUESDAY AND WEDNESDAY.
THUS EXPECT TYPICAL SUMMER THUNDERSTORM ACTIVITY. MAIN THREAT FROM
STORMS WILL BE HEAVY RAIN AND WIND GUSTS TO 45 MPH. THERE WILL BE
FLASH FLOODING CONCERNS BOTH TUESDAY AND WEDNESDAY.

SOME DRIER AIR PUSHES IN THURSDAY INTO THE WEEKEND...BUT ENOUGH
MOISTURE WILL BE AROUND FOR A CHANCE OF STORMS EACH AFTERNOON AND
EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ501-040600-
WESTERN PIMA COUNTY-
1120 AM MST MON SEP 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT CHANCE FOR THUNDERSTORMS THIS AFTERNOON...THEN A
BETTER CHANCE TONIGHT AS STORMS IN CENTRAL PIMA COUNTY PUSH WEST
AS FAR AS STATE HIGHWAY 86. MAIN THREAT FROM STORMS INITIALLY WILL
BE BLOWING DUST FROM THUNDERSTORM OUTFLOW TO THE EAST...THEY
LOCALLY HEAVY RAIN AND WIND GUSTS TO 45 MPH AS STORMS PUSH WEST
ACROSS THE AREA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DEEPER MOISTURE WILL MOVE ACROSS THE AREA TUESDAY AND WEDNESDAY.
THUS EXPECT TYPICAL SUMMER THUNDERSTORM ACTIVITY. MAIN THREAT FROM
STORMS WILL BE HEAVY RAIN AND WIND GUSTS TO 45 MPH. THERE WILL BE
FLASH FLOODING CONCERNS BOTH TUESDAY AND WEDNESDAY.

SOME DRIER AIR PUSHES IN THURSDAY INTO THE WEEKEND...BUT ENOUGH
MOISTURE WILL BE AROUND FOR A CHANCE OF STORMS EACH AFTERNOON AND
EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ509>512-040600-
UPPER GILA RIVER VALLEY-
WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES-
GALIURO AND PINALENO MOUNTAINS-CHIRICAHUA MOUNTAINS-
1120 AM MST MON SEP 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST ARIZONA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND
EVENING. LOCALLY HEAVY RAIN AND WIND GUSTS TO 45 MPH ARE MAIN
CONCERNS WITH STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DEEPER MOISTURE WILL MOVE ACROSS THE AREA TUESDAY AND WEDNESDAY.
THUS EXPECT TYPICAL SUMMER THUNDERSTORM ACTIVITY. MAIN THREAT FROM
STORMS WILL BE HEAVY RAIN AND WIND GUSTS TO 45 MPH. THERE WILL BE
FLASH FLOODING CONCERNS BOTH TUESDAY AND WEDNESDAY.

SOME DRIER AIR PUSHES IN THURSDAY INTO THE WEEKEND...BUT ENOUGH
MOISTURE WILL BE AROUND FOR A CHANCE OF STORMS EACH AFTERNOON AND
EVENING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

WEATHER.GOV/TUCSON

In the hours before

Special weather statement, Sep 3, 3:03 PM MST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
303 PM MST MON SEP 3 2012

AZZ503-513-032245-
DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS INCLUDING
BISBEE/CANELO HILLS/MADERA CANYON AZ-UPPER SANTA CRUZ RIVER AND ALTAR
VALLEYS INCLUDING NOGALES AZ-
303 PM MST MON SEP 3 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SANTA CRUZ COUNTY UNTIL
345 PM MST...

AT 254 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 12 MILES NORTHEAST OF NOGALES...MOVING WEST AT 5
TO 10 MPH TOWARD THE PATAGONIA LAKE AREA.

WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN.

AREAS AFFECTED BY THIS STORM INCLUDE...NOGALES...KINO SPRINGS AND
PATAGONIA LAKE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3161 11090 3155 11065 3136 11068 3132 11089
      3133 11096
TIME...MOT...LOC 2202Z 090DEG 8KT 3145 11078

MEYER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 5:02 PM MSTFlash Flood WarningTWCPima118 min
Sep 2, 5:10 PM MSTFlash Flood WarningTWCPima80 min
Sep 2, 5:25 PM MSTBlowing Dust AdvisoryTWCPima, Pinal100 min
Sep 2, 5:52 PM MSTSpecial Weather StatementTWCPima38 min
Sep 2, 6:59 PM MSTFlash Flood WarningTWCPima, Pinal2 hr
Sep 2, 8:22 PM MSTAreal Flood AdvisoryTWCPima, Pinal3 hr
Sep 2, 8:40 PM MSTFlash Flood WarningTWCPima80 min
Sep 3, 1:47 PM MSTFlash Flood WarningTWCCochise118 min
Sep 3, 3:25 PM MSTAreal Flood AdvisoryTWCSanta Cruz2 hr
Sep 3, 3:35 PM MSTSpecial Weather StatementTWCSanta Cruz40 min
Sep 3, 3:57 PM MSTAreal Flood AdvisoryTWCCochise93 min
Sep 3, 4:05 PM MSTFlash Flood WarningTWCCochise115 min
Sep 3, 4:28 PM MSTSevere Thunderstorm WarningTWCPima47 min
Sep 3, 4:46 PM MSTFlash Flood WarningTWCPima119 min

Nearby

Special Weather Statements in Arizona, 2012Every special weather statement in 2012

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.