Alert archive / Colorado / Flash Flood Warnings in 2026

Flash Flood Warning 33, NWS Grand Junction, CO

July 21, 2026Garfield County, Colorado

NWS Grand Junction, CO issued this flash flood warning at Jul 21, 2026, 5:34 PM MDT for Garfield County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 21, 2026, 5:34 PM MDT (23:34 UTC)
Expired: Jul 21, 2026, 8:30 PM MDT
In force: 3 hr
Issued by: NWS Grand Junction, CO
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Garfield County, CO

The radar

The Grand Junction radar (KGJX), 65 km from the middle of the area, began a volume at 23:34 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Junction, CO wrote its last area forecast discussion before this flash flood warning went out at Jul 21, 11:53 AM MDT, 5 hours 41 minutes earlier.

Area forecast discussion, Jul 21, 11:53 AM MDT, 5 hours 41 minutes before

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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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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      <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

Local storm report, Jul 21, 4:44 PM MDT, 50 minutes before

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  <title>Service Notice</title>
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</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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    </section>
  </main>
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</body>
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Local storm report, Jul 21, 4:51 PM MDT, 43 minutes before

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<html lang="en">
<head>
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  <title>Service Notice</title>
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</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>
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Special weather statement, Jul 21, 5:11 PM MDT, 23 minutes before

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<html lang="en">
<head>
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  <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>

Local storm report, Jul 21, 5:29 PM MDT, 5 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>

Special weather statement, Jul 21, 5:29 PM MDT, 5 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>

Special weather statement, Jul 21, 5:34 PM MDT, 0 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 6:03 PM MDT	Special Weather Statement	GJT	San Miguel	27 min
Jul 20, 6:18 PM MDT	Special Weather Statement	GJT	Ouray	27 min
Jul 20, 6:27 PM MDT	Special Weather Statement	GJT	Mesa	33 min
Jul 20, 6:33 PM MDT	Special Weather Statement	GJT	Garfield	27 min
Jul 20, 6:59 PM MDT	Special Weather Statement	GJT	Mesa	31 min
Jul 20, 7:02 PM MDT	Special Weather Statement	GJT	Delta	28 min
Jul 20, 7:14 PM MDT	Areal Flood Advisory	GJT	Delta, Mesa	26 min
Jul 20, 7:27 PM MDT	Special Weather Statement	GJT	Mesa	33 min
Jul 20, 7:40 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Delta, Mesa	3 hr
Jul 20, 8:04 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Rio Blanco	3 hr
Jul 20, 8:04 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Mesa	3 hr
Jul 20, 8:09 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Mesa	3 hr
Jul 20, 8:27 PM MDT	Special Weather Statement	GJT	Mesa	33 min
Jul 20, 8:45 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Montrose	3 hr
Jul 20, 9:01 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Mesa	3 hr
Jul 20, 9:04 PM MDT	Areal Flood Advisory	GJT	Mesa	3 hr
Jul 20, 9:08 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Mesa	3 hr
Jul 20, 9:24 PM MDT	Special Weather Statement	GJT	Montezuma	36 min
Jul 20, 10:06 PM MDT	Special Weather Statement	GJT	Montezuma	24 min
Jul 20, 10:41 PM MDT	Special Weather Statement	GJT	Montezuma	34 min
Jul 21, 9:59 AM MDT	Flood Watch	GJT	Delta, Dolores, Garfield, Mesa, Montezuma, Montrose and 3 more	11 hr
Jul 21, 3:19 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Montrose, San Miguel	4 hr
Jul 21, 3:43 PM MDT	Special Weather Statement	GJT	Montezuma	32 min
Jul 21, 3:47 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Dolores, Montezuma, San Miguel	4 hr
Jul 21, 3:54 PM MDT	Severe Thunderstorm Warning	GJT	Montezuma	36 min
Jul 21, 3:58 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Montezuma	3 hr
Jul 21, 4:12 PM MDT	Severe Thunderstorm Warning	GJT	Dolores, Montezuma	48 min
Jul 21, 4:22 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Dolores, Montezuma	3 hr
Jul 21, 4:44 PM MDT	Severe Thunderstorm Warning	GJT	Dolores, Montezuma	31 min
Jul 21, 5:06 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Dolores, Montezuma	3 hr
Jul 21, 5:11 PM MDT	Special Weather Statement	GJT		19 min
Jul 21, 5:29 PM MDT	Special Weather Statement	GJT		31 min
Jul 21, 5:34 PM MDT	Special Weather Statement	GJT		26 min
Jul 21, 5:40 PM MDT	Areal Flood Advisory	GJT	Ouray	3 hr
Jul 21, 5:55 PM MDT	Areal Flood Advisory	GJT	Garfield	3 hr
Jul 21, 5:16 PM MDT	Severe Thunderstorm Warning	GJT	San Juan	29 min
Jul 21, 5:32 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	3 hr
Jul 21, 5:37 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	3 hr
Jul 21, 5:51 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	3 hr
Jul 21, 5:58 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	3 hr

Nearby

Flash Flood Warnings in Colorado, 2026 Every flash flood warning in 2026

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.