Alert archive / Arizona / Special Weather Statements in 2019

Special Weather Statement, NWS Flagstaff, AZ

September 1, 2019

NWS Flagstaff, AZ issued this special weather statement at Sep 1, 2019, 12:21 PM 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: Sep 1, 2019, 12:21 PM MST (19:21 UTC)
Expired: Sep 1, 2019, 1:00 PM MST
In force: 39 min
Issued by: NWS Flagstaff, AZ

The radar

The Flagstaff radar (KFSX), 147 km from the middle of the area, began a volume at 19:21 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 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 Flagstaff, AZ wrote its last area forecast discussion before this special weather statement went out at Sep 1, 9:23 AM MST, 2 hours 58 minutes earlier.

Area forecast discussion, Sep 1, 9:23 AM MST, 2 hours 58 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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In the hours before

Special weather statement, Sep 1, 11:56 AM MST, 25 minutes before

Special Weather Statement
National Weather Service Flagstaff AZ
1156 AM MST Sun Sep 1 2019

AZZ017-011930-
White Mountains-
1156 AM MST Sun Sep 1 2019

...SIGNIFICANT WEATHER ADVISORY FOR APACHE AND NAVAJO COUNTIES UNTIL
1230 PM MST...

At 1155 AM MST, Doppler radar was tracking a strong thunderstorm 11
miles east of North Fork, or 24 miles southeast of Show Low, moving
west at 10 mph.

Penny size hail and winds in excess of 30 mph will be possible with
this storm.

This storm will remain over mainly rural areas of Apache and Navajo
Counties, including the following locations... Mcnary.

LAT...LON 3379 10982 3410 10986 3403 10966 3397 10957
TIME...MOT...LOC 1855Z 088DEG 8KT 3396 10977

41

Special weather statement, Sep 1, 12:21 PM MST, 0 minutes before

Special Weather Statement
National Weather Service Flagstaff AZ
1221 PM MST Sun Sep 1 2019

AZZ017-012000-
White Mountains-
1221 PM MST Sun Sep 1 2019

...SIGNIFICANT WEATHER ADVISORY FOR APACHE AND NAVAJO COUNTIES UNTIL
100 PM MST...

At 1217 PM MST, Doppler radar was tracking a strong thunderstorm 10
miles northeast of White River.

Penny size hail and winds in excess of 30 mph will be possible with
this storm.

This storm is over the Diamond Creek and Little Diamond Creek
basins. It is expected to affect Highway 73 north of White River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3401 10968 3387 10967 3384 10994 3402 10996
TIME...MOT...LOC 1917Z 073DEG 8KT 3391 10980

41

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 11:56 AM MST	Special Weather Statement	FGZ		34 min
Sep 1, 12:58 PM MST	Flash Flood Warning	FGZ	Apache, Navajo	3 hr
Sep 1, 1:38 PM MST	Special Weather Statement	FGZ		37 min
Sep 1, 1:58 PM MST	Special Weather Statement	FGZ		47 min
Sep 1, 2:22 PM MST	Severe Thunderstorm Warning	FGZ	Gila	23 min
Sep 1, 2:29 PM MST	Special Weather Statement	FGZ		46 min
Sep 1, 2:34 PM MST	Flash Flood Warning	FGZ	Gila, Navajo	3 hr
Sep 1, 2:48 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	27 min
Sep 1, 3:02 PM MST	Severe Thunderstorm Warning	FGZ	Gila	18 min
Sep 1, 3:24 PM MST	Areal Flood Advisory	FGZ	Gila	3 hr
Sep 1, 3:40 PM MST	Special Weather Statement	FGZ	Gila	50 min
Sep 1, 3:54 PM MST	Special Weather Statement	FGZ		51 min
Sep 1, 3:59 PM MST	Severe Thunderstorm Warning	FGZ	Gila, Yavapai	46 min
Sep 1, 4:19 PM MST	Special Weather Statement	FGZ	Yavapai	41 min

Nearby

Special Weather Statements in Arizona, 2019 Every special weather statement 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.