Alert archive / Oregon / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 21, NWS Medford, OR

May 28, 2026Lake County, Oregon

NWS Medford, OR issued this severe thunderstorm warning at May 28, 2026, 2:09 PM PDT for Lake County, Oregon. It was in force for 51 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: May 28, 2026, 2:09 PM PDT (21:09 UTC)
Expired: May 28, 2026, 3:00 PM PDT
In force: 51 min
Issued by: NWS Medford, OR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lake County, OR

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, 9.2 hours before the alert went out and 285 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

The text

As transmitted.

422 
WUUS56 KMFR 282109
SVRMFR
ORC037-282200-
/O.NEW.KMFR.SV.W.0021.260528T2109Z-260528T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Medford OR
209 PM PDT Thu May 28 2026

The National Weather Service in Medford has issued a

* Severe Thunderstorm Warning for...
  North central Lake County in south central Oregon...

* Until 300 PM PDT.

* At 208 PM PDT, a severe thunderstorm was located 29 miles east of
  Hampton, or 31 miles west of Burns, moving northwest at 35 mph.

  HAZARD...60 mph wind gusts, quarter size hail, and frequent 
           lightning.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of 
  north central Lake County, and portions of highway 20 near Glass 
  Buttes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4337 11990 4361 12040 4361 11990
TIME...MOT...LOC 2108Z 125DEG 31KT 4353 11968 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BPN

1 follow-up statement

283 
WWUS56 KMFR 282142
SVSMFR

Severe Weather Statement
National Weather Service Medford OR
242 PM PDT Thu May 28 2026

ORC037-282200-
/O.CON.KMFR.SV.W.0021.000000T0000Z-260528T2200Z/
Lake OR-
242 PM PDT Thu May 28 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM PDT
FOR NORTH CENTRAL LAKE COUNTY...

At 241 PM PDT, a severe thunderstorm was located 11 miles east of
Hampton, or 47 miles west of Burns, moving northwest at 35 mph.

HAZARD...80 mph wind gusts and quarter size hail.

SOURCE...Radar indicated and reported by automated weather station.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

This severe thunderstorm will remain over mainly rural areas of north
central Lake County, including highway 20 near Glass Buttes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4351 11990 4361 12040 4361 11990
TIME...MOT...LOC 2141Z 125DEG 31KT 4369 12000 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

BPN

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 5:09 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	27 min
May 27, 5:13 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	32 min
May 27, 5:40 PM PDT	Severe Thunderstorm Warning	MFR	Jackson, Klamath	18 min
May 28, 1:39 PM PDT	Small Craft Advisory	MFR		5 days
May 28, 3:05 PM PDT	Severe Thunderstorm Warning Considerable damage threat	MFR	Lake	25 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.