Alert archive / Oregon / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 13, NWS Boise, ID

May 28, 2026Harney County, Oregon

NWS Boise, ID issued this severe thunderstorm warning at May 28, 2026, 1:42 PM PDT for Harney County, Oregon. It was in force for 48 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, 2026, 1:42 PM PDT (20:42 UTC)
Expired: May 28, 2026, 2:30 PM PDT
In force: 48 min
Issued by: NWS Boise, ID
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Harney County, OR

The radar

The Boise radar (KCBX), 226 km from the middle of the area, began a volume at 20:43 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
May 28, 12:49 PM PDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Salem/Mcnary, OR (KSLE), launched 12:00Z, 8.7 hours before the alert went out and 383 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1077 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at May 28, 10:21 AM PDT, 3 hours 21 minutes earlier.

Area forecast discussion, May 28, 10:21 AM PDT, 3 hours 21 minutes before

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In the hours before

Special weather statement, May 28, 11:43 AM PDT, 1 hour 59 minutes before

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      <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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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, May 28, 12:07 PM PDT, 1 hour 35 minutes before

Special Weather Statement
National Weather Service Boise ID
1207 PM PDT Thu May 28 2026

ORZ063-282000-
Malheur County OR-
1207 PM PDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL MALHEUR COUNTY
THROUGH 100 PM PDT...

At 1207 PM PDT, Doppler radar was tracking a strong thunderstorm near
Scott Reservoir, or 8 miles south of Rome, moving west at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Areas of blowing dust reducing
         visibility. Minor damage to outdoor objects is possible.

This strong thunderstorm will be near...
  Scott Reservoir around 110 PM MDT.
  Burns Junction around 130 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4277 11736 4261 11759 4270 11818 4302 11790
TIME...MOT...LOC 1907Z 107DEG 26KT 4271 11759

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

KA

Special weather statement, May 28, 12:45 PM PDT, 57 minutes before

Special Weather Statement
National Weather Service Boise ID
1245 PM PDT Thu May 28 2026

ORZ061-282030-
Harney County OR-
1245 PM PDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL HARNEY COUNTY
THROUGH 130 PM PDT...

At 1245 PM PDT, Doppler radar was tracking a strong thunderstorm over
Stinking Lake, or 22 miles southwest of Burns, moving west at 10 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Areas of blowing dust reducing
         visibility. Minor damage to outdoor objects is possible.

This strong thunderstorm will be near...
  Stinking Lake around 1250 PM PDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 4343 11921 4325 11922 4319 11962 4349 11963
TIME...MOT...LOC 1945Z 089DEG 11KT 4333 11932

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

NF

Special weather statement, May 28, 12:48 PM PDT, 54 minutes before

Special Weather Statement
National Weather Service Boise ID
1248 PM PDT Thu May 28 2026

ORZ061-063-282030-
Malheur County OR-Harney County OR-
1248 PM PDT Thu May 28 2026

...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL HARNEY AND WEST
CENTRAL MALHEUR COUNTIES THROUGH 130 PM PDT...

At 1247 PM PDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles northwest of Owyhee Butte to near Flat
Top Mountain. Movement was west at 35 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Areas of blowing dust reducing
         visibility. Minor damage to outdoor objects is possible.

Strong thunderstorms will be near...
  Burns Junction, Flat Top Mountain, and Saddle Butte Lava Tube
  around 150 PM MDT.
  Antelope Spring and Saddle Butte around 200 PM MDT.
  Table Mountain around 110 PM PDT.
  Ryegrass Butte and Turnbull Peak around 210 PM MDT.
  Coffin Butte, Heath Lake, Juniper Lake, and Tencent Lake around
  120 PM PDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 PM PDT for
southeastern Oregon.

&&

LAT...LON 4324 11824 4267 11851 4267 11788 4308 11770
TIME...MOT...LOC 1947Z 101DEG 32KT 4303 11774 4271 11789

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

NF

Special weather statement, May 28, 1:17 PM PDT, 25 minutes before

Special Weather Statement
National Weather Service Boise ID
217 PM MDT Thu May 28 2026

IDZ011-282100-
West Central Mountains ID-
217 PM MDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL VALLEY AND EAST
CENTRAL ADAMS COUNTIES THROUGH 300 PM MDT...

At 217 PM MDT, Doppler radar was tracking a strong thunderstorm near
Donnelly, or 9 miles south of McCall, moving north at 20 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Areas of blowing dust reducing
         visibility. Minor damage to outdoor objects is possible.

This strong thunderstorm will be near...
  McCall around 230 PM MDT.
  Payette Lake and Little Payette Lake around 240 PM MDT.
  Meadows and Brundage Ski Area around 250 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

If on or near Payette Lake, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
southwestern Idaho.

&&

LAT...LON 4473 11591 4467 11615 4502 11644 4511 11603
TIME...MOT...LOC 2017Z 160DEG 17KT 4478 11607

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

KA

Special weather statement, May 28, 1:31 PM PDT, 11 minutes before

Special Weather Statement
National Weather Service Boise ID
231 PM MDT Thu May 28 2026

IDZ012-014-015-029-282115-
Upper Treasure Valley ID-Lower Treasure Valley ID-
Southwest Highlands ID-Owyhee Mountains ID-
231 PM MDT Thu May 28 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN ADA...SOUTHWESTERN
ELMORE AND CENTRAL OWYHEE COUNTIES THROUGH 315 PM MDT...

At 231 PM MDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from 6 miles southwest of Black
Warrior Mountain to near Twentymile Butte. Movement was north at 15
mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Areas of blowing dust reducing
         visibility.

Locations impacted include...
Mountain Home, Mountain Home Air Force Base, Grand View, Reynolds,
Silver City, Bruneau, Winter Camp Butte, Hinton Reservoir, Lookout
Butte, Triangle, Toy Pass, Pot Hole Butte, Black Warrior Mountain,
The Hat, Succor Creek Reservoir, Mud Flat Spring, Oreana, Crab Spring
Butte, Chalk Hills, and Gedney Butte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
southwestern Idaho.

&&

LAT...LON 4322 11698 4310 11552 4243 11544 4256 11680
TIME...MOT...LOC 2031Z 177DEG 15KT 4285 11686 4274 11513

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

JY

The office that day

Everything else NWS Boise, ID issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 5:08 PM PDT	Special Weather Statement	BOI		52 min
May 27, 5:57 PM PDT	Special Weather Statement	BOI		48 min
May 28, 9:39 AM PDT	Wind Advisory	BOI	Twin Falls	8 hr
May 28, 11:43 AM PDT	Special Weather Statement	BOI		47 min
May 28, 1:17 PM PDT	Special Weather Statement	BOI	Adams	43 min
May 28, 1:31 PM PDT	Special Weather Statement	BOI	Owyhee	44 min
May 28, 1:58 PM PDT	Special Weather Statement	BOI	Adams	47 min
May 28, 2:17 PM PDT	Severe Thunderstorm Warning	BOI	Ada, Canyon, Elmore, Owyhee	43 min
May 28, 2:24 PM PDT	Severe Thunderstorm Warning	BOI	Adams, Washington	31 min
May 28, 2:31 PM PDT	Special Weather Statement	BOI	Canyon	44 min
May 28, 2:38 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Ada, Boise, Canyon, Elmore, Gem, Owyhee	37 min
May 28, 3:05 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Adams, Washington	40 min
May 28, 3:09 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Ada, Boise, Canyon, Elmore, Gem, Payette and 2 more	44 min
May 28, 3:57 PM PDT	Special Weather Statement	BOI	Washington	48 min
May 28, 12:07 PM PDT	Special Weather Statement	BOI	Malheur	53 min
May 28, 12:45 PM PDT	Special Weather Statement	BOI	Harney	45 min
May 28, 12:48 PM PDT	Special Weather Statement	BOI	Malheur	42 min
May 28, 1:01 PM PDT	Severe Thunderstorm Warning	BOI	Harney	44 min
May 28, 1:02 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney, Malheur	43 min
May 28, 1:15 PM PDT	Severe Thunderstorm Warning	BOI	Harney	45 min
May 28, 1:36 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney, Malheur	39 min
May 28, 1:50 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	40 min
May 28, 2:06 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	39 min
May 28, 2:15 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	45 min
May 28, 2:18 PM PDT	Severe Thunderstorm Warning Destructive damage threat	BOI	Harney	42 min
May 28, 2:40 PM PDT	Severe Thunderstorm Warning Destructive damage threat	BOI	Harney	50 min
May 28, 2:59 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	19 min
May 28, 3:45 PM PDT	Severe Thunderstorm Warning	BOI	Baker	31 min
May 28, 4:19 PM PDT	Severe Thunderstorm Warning	BOI	Baker	11 min
May 28, 4:49 PM PDT	Special Weather Statement	BOI	Baker	41 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2026 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.