Alert archive / Arizona / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 56, NWS Phoenix, AZ

September 23, 2019Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 23, 2019, 4:51 PM MST for Maricopa County, Arizona. 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 counties it named.

The facts

Issued: Sep 23, 2019, 4:51 PM MST (23:51 UTC)
Expired: Sep 23, 2019, 5:30 PM MST
In force: 39 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 23:50 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 23, 9:52 AM MST	Severe Thunderstorm Watch	SPC	10 hr

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Sep 23, 4:19 PM MST, 32 minutes earlier.

Area forecast discussion, Sep 23, 4:19 PM MST, 32 minutes before

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In the hours before

Local storm report, Sep 23, 3:31 PM MST, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
331 PM MST MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     TSTM WND GST     11 NW CASA GRANDE       32.97N 111.90W
09/23/2019  M40 MPH          PINAL              AZ   ASOS

            BLOWING DUST MEASURED WITH VISIBILITY AT 2.5
            MILES.

&&

DSD

Local storm report, Sep 23, 3:35 PM MST, 1 hour 16 minutes before

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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Sep 23, 3:37 PM MST, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
337 PM MST MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     TSTM WND GST     6 NE SANTAN             33.21N 111.74W
09/23/2019  M45 MPH          MARICOPA           AZ   TRAINED SPOTTER

            WIND GUSTS WITH LARGE TREE LIMBS DOWN.

&&

DSD

Local storm report, Sep 23, 3:38 PM MST, 1 hour 13 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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Local storm report, Sep 23, 3:39 PM MST, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
339 PM MST MON SEP 23 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0125 PM     HEAVY RAIN       WITTMANN                33.78N 112.52W
09/23/2019  M1.74 INCH       MARICOPA           AZ   TRAINED SPOTTER

            1.74 INCHES OF PRECIPITATION IN A 2-HOUR
            PERIOD.

&&

DSD

Special weather statement, Sep 23, 4:28 PM MST, 23 minutes before

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<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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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 23, 2:32 AM MST	Flash Flood Watch	PSR	Gila, La Paz, Maricopa, Pinal, Yuma	32 hr
Sep 23, 4:38 AM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 23, 5:15 AM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	4 hr
Sep 23, 5:41 AM MST	Flash Flood Warning	PSR	Maricopa, Pinal	4 hr
Sep 23, 6:01 AM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	4 hr
Sep 23, 6:01 AM MST	Flash Flood Warning	PSR	Maricopa, Pinal	4 hr
Sep 23, 6:09 AM MST	Flash Flood Warning	PSR	Gila, Maricopa, Pinal	4 hr
Sep 23, 6:26 AM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 23, 6:52 AM MST	Flash Flood Warning	PSR	Gila	4 hr
Sep 23, 7:07 AM MST	Special Weather Statement	PSR		53 min
Sep 23, 7:27 AM MST	Flash Flood Warning	PSR	Gila, Maricopa	4 hr
Sep 23, 8:14 AM MST	Special Weather Statement	PSR	La Paz	46 min
Sep 23, 8:18 AM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 23, 8:36 AM MST	Flash Flood Warning	PSR	Maricopa, Pinal	4 hr
Sep 23, 8:54 AM MST	Special Weather Statement	PSR	La Paz	51 min
Sep 23, 9:47 AM MST	Severe Thunderstorm Warning	PSR	La Paz	28 min
Sep 23, 10:15 AM MST	Flash Flood Warning	PSR	La Paz	5 hr
Sep 23, 10:16 AM MST	Severe Thunderstorm Warning	PSR	La Paz	59 min
Sep 23, 11:11 AM MST	Special Weather Statement	PSR	Maricopa	49 min
Sep 23, 11:24 AM MST	Severe Thunderstorm Warning	PSR	La Paz, Maricopa	51 min
Sep 23, 11:38 AM MST	Flash Flood Warning	PSR	Maricopa	6 hr
Sep 23, 11:53 AM MST	Special Weather Statement	PSR		52 min
Sep 23, 11:57 AM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 23, 12:07 PM MST	Special Weather Statement	PSR		38 min
Sep 23, 12:14 PM MST	Tornado Warning	PSR	Maricopa	31 min
Sep 23, 12:39 PM MST	Special Weather Statement	PSR		51 min
Sep 23, 12:45 PM MST	Special Weather Statement	PSR	Maricopa	45 min
Sep 23, 12:55 PM MST	Special Weather Statement	PSR		50 min
Sep 23, 1:03 PM MST	Special Weather Statement	PSR		42 min
Sep 23, 1:04 PM MST	Flash Flood Warning	PSR	Maricopa	4 hr
Sep 23, 1:23 PM MST	Special Weather Statement	PSR	Maricopa	67 min
Sep 23, 1:26 PM MST	Flash Flood Warning	PSR	Maricopa	5 hr
Sep 23, 1:50 PM MST	Dust Storm Warning	PSR	Maricopa	55 min
Sep 23, 2:03 PM MST	Special Weather Statement	PSR		42 min
Sep 23, 2:28 PM MST	Dust Storm Warning	PSR	Pinal	62 min
Sep 23, 2:41 PM MST	Dust Storm Warning	PSR	Maricopa, Pinal	64 min
Sep 23, 2:43 PM MST	Severe Thunderstorm Warning	PSR	Gila, Maricopa	32 min
Sep 23, 3:22 PM MST	Special Weather Statement	PSR		53 min
Sep 23, 4:12 PM MST	Flash Flood Warning	PSR	La Paz, Maricopa, Yuma	4 hr
Sep 23, 4:28 PM MST	Special Weather Statement	PSR	Maricopa	47 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2019 Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.