Alert archive / Idaho / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 1, NWS Missoula, MT

May 28, 2024Idaho County, Idaho

NWS Missoula, MT issued this severe thunderstorm warning at May 28, 2024, 5:02 PM PDT for Idaho County, Idaho. It was in force for 28 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: May 28, 2024, 5:02 PM PDT (00:02 UTC)
Expired: May 28, 2024, 5:30 PM PDT
In force: 28 min
Issued by: NWS Missoula, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Idaho County, ID

The radar

The Missoula radar (KMSX), 175 km from the middle of the area, began a volume at 00:02 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 Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at May 28, 11:08 AM PDT, 5 hours 54 minutes earlier.

Area forecast discussion, May 28, 11:08 AM PDT, 5 hours 54 minutes before

Area Forecast Discussion
National Weather Service Missoula MT
1208 PM MDT Tue May 28 2024

...WIDESPREAD THUNDERSTORMS TODAY AND TONIGHT WITH 10 PERCENT
CHANCE OF 60 MPH WINDS AFFECTING YOU...

.DISCUSSION...A trough is digging into the west coast and pushing
the ridge to the east and setting up southwest flow over the
region, which is a classic thunderstorm pattern for this area.
Convection already kicked off this morning across northwest
Montana, but has remained as showers and not yet become
thunderstorms.

The most unstable conditions and strongest shear started over
central Idaho near Grangeville and Orofino late this morning and
are moving across Idaho county. This is the area most likely to
get severe thunderstorms capable of producing winds over 60 mph or
large hail. There is a 10 percent chance of being affected by
winds greater than 60 mph for locations in central Idaho and
western Montana today and tonight. Thunderstorms will continue for
through the night and transition to showers Wednesday morning as
the trough finally moves into our region.

Wednesday, the base of the trough is over our region and it will
be windy with gusts in the 15-25 mph range common and temperatures
about 20 degrees cooler than today.

By the end of the week it will dry out again and return to near
average temperatures. The generally westerly flow will support
showers at times, but so far no models are indicating another
significant round of thunderstorms until next week.

&&

.AVIATION...The ridge over the area today is breaking down causing
increasing cloud cover and decreasing stability. Thunderstorms and
showers will initiate early this afternoon and persist across the
region through tonight. There is potential for severe
thunderstorms this evening, especially from 28/22Z through 29/01Z
when there is a 10 percent chance of a terminal being impacted by
60 mph or stronger winds. Tomorrow will be much cooler and
showery.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

In the hours before

Local storm report, May 28, 4:22 PM PDT, 40 minutes before

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Local storm report, May 28, 4:31 PM PDT, 31 minutes before

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Special weather statement, May 28, 4:47 PM PDT, 15 minutes before

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Local storm report, May 28, 4:51 PM PDT, 11 minutes before

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      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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Local storm report, May 28, 4:52 PM PDT, 10 minutes before

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      <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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Special weather statement, May 28, 4:55 PM PDT, 7 minutes before

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<body>
  <main class="wrap">
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      <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>
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</body>
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The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 5:12 PM PDT	Special Weather Statement	MSO		33 min
May 28, 6:26 PM PDT	Special Weather Statement	MSO	Flathead	34 min
May 28, 6:45 PM PDT	Special Weather Statement	MSO	Lake	45 min
May 29, 10:04 AM PDT	Lake Wind Advisory	MSO	Flathead, Lake, Sanders	10 hr
May 29, 11:48 AM PDT	Frost Advisory	MSO	Flathead, Lincoln, Mineral, Missoula, Sanders	19 hr
May 29, 11:48 AM PDT	Frost Advisory	MSO	Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more	43 hr
May 28, 5:32 PM PDT	Special Weather Statement	MSO	Idaho	43 min
May 28, 5:46 PM PDT	Special Weather Statement	MSO	Lewis	44 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2024 Every severe thunderstorm warning in 2024

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.