Alert archive / California / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 21, NWS Medford, OR

July 3, 2025Modoc County, California

NWS Medford, OR issued this severe thunderstorm warning at Jul 3, 2025, 4:20 PM PDT for Modoc County, California. It was in force for 25 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: Jul 3, 2025, 4:20 PM PDT (23:20 UTC)
Expired: Jul 3, 2025, 4:45 PM PDT
In force: 25 min
Issued by: NWS Medford, OR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Modoc County, CA

The radar

The Medford radar (KMAX), 176 km from the middle of the area, began a volume at 23:22 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 nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 11.3 hours before the alert went out and 296 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: 2568 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

477 
WUUS56 KMFR 032320
SVRMFR
CAC049-032345-
/O.NEW.KMFR.SV.W.0021.250703T2320Z-250703T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Medford OR
420 PM PDT Thu Jul 3 2025

The National Weather Service in Medford has issued a

* Severe Thunderstorm Warning for...
  South central Modoc County in northern California...

* Until 445 PM PDT.

* At 420 PM PDT, a severe thunderstorm was located over Adin, or 9
  miles northeast of Bieber, moving north at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lower Rush Creek Campground and Adin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4119 12108 4139 12104 4136 12057 4118 12074
TIME...MOT...LOC 2320Z 194DEG 22KT 4118 12097 

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

$$

MAS

1 follow-up statement

092 
WWUS56 KMFR 032333
SVSMFR

Severe Weather Statement
National Weather Service Medford OR
433 PM PDT Thu Jul 3 2025

CAC049-032345-
/O.CON.KMFR.SV.W.0021.000000T0000Z-250703T2345Z/
Modoc CA-
433 PM PDT Thu Jul 3 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM PDT
FOR SOUTH CENTRAL MODOC COUNTY...

At 433 PM PDT, a severe thunderstorm was located near Adin, or 14
miles northeast of Bieber, moving north at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Lower Rush Creek Campground and Adin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4119 12108 4139 12104 4136 12057 4118 12074
TIME...MOT...LOC 2333Z 194DEG 22KT 4126 12094 

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

$$

MAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 5:03 PM PDT	Special Weather Statement	MFR	Siskiyou	27 min
Jul 2, 5:53 PM PDT	Special Weather Statement	MFR	Siskiyou	37 min
Jul 2, 6:31 PM PDT	Special Weather Statement	MFR	Siskiyou	44 min
Jul 2, 7:09 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	36 min
Jul 3, 12:04 PM PDT	Red Flag Warning	MFR	Modoc	20 hr
Jul 3, 3:58 PM PDT	Special Weather Statement	MFR	Siskiyou	32 min
Jul 3, 4:03 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	27 min
Jul 3, 4:22 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	23 min
Jul 3, 4:26 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	20 min
Jul 3, 4:43 PM PDT	Severe Thunderstorm Warning	MFR	Modoc	32 min
Jul 3, 4:48 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	27 min

Nearby

Severe Thunderstorm Warnings in California, 2025 Every severe thunderstorm warning in 2025

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.