Alert archive / Colorado / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 45, NWS Grand Junction, CO

August 30, 2020Garfield County, Mesa County, Colorado; Grand County, Uintah County, Utah

NWS Grand Junction, CO issued this severe thunderstorm warning at Aug 30, 2020, 2:58 PM MDT for Garfield County, Mesa County, Colorado; Grand County, Uintah County, Utah. It was in force for 47 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: Aug 30, 2020, 2:58 PM MDT (20:58 UTC)
Expired: Aug 30, 2020, 3:45 PM MDT
In force: 47 min
Issued by: NWS Grand Junction, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Garfield County, CO, Mesa County, CO, Grand County, UT, Uintah County, UT

The radar

The Grand Junction radar (KGJX), 69 km from the middle of the area, began a volume at 21:01 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 severe thunderstorm 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 severe thunderstorm warning went out at Aug 30, 11:57 AM MDT, 3 hours 1 minute earlier.

Area forecast discussion, Aug 30, 11:57 AM MDT, 3 hours 1 minute before

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Hazardous weather outlook, Aug 30, 4:17 AM MDT, 10 hours 41 minutes before

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In the hours before

Special weather statement, Aug 30, 12:53 PM MDT, 2 hours 5 minutes before

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Special weather statement, Aug 30, 1:32 PM MDT, 1 hour 26 minutes before

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Special weather statement, Aug 30, 1:51 PM MDT, 1 hour 7 minutes before

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      <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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Special weather statement, Aug 30, 2:32 PM MDT, 26 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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      <p id="message2">
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 2:23 AM MDT	Red Flag Warning	GJT	Garfield, Mesa, Moffat, Rio Blanco	43 hr
Aug 30, 12:53 PM MDT	Special Weather Statement	GJT	Garfield	52 min
Aug 30, 1:32 PM MDT	Special Weather Statement	GJT	Eagle	58 min
Aug 30, 1:51 PM MDT	Special Weather Statement	GJT	Garfield	39 min
Aug 30, 2:32 PM MDT	Special Weather Statement	GJT	Garfield	28 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2020 Severe Thunderstorm Warnings in Utah, 2020 Every severe thunderstorm warning in 2020

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.