Alert archive / California / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 16, NWS Medford, OR

July 1, 2025Siskiyou County, California

NWS Medford, OR issued this severe thunderstorm warning at Jul 1, 2025, 4:30 PM PDT for Siskiyou County, California. It was in force for 11 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: Jul 1, 2025, 4:30 PM PDT (23:30 UTC)
Expired: Jul 1, 2025, 4:41 PM PDT
In force: 11 min
Issued by: NWS Medford, OR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Siskiyou County, CA

The radar

The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 23:32 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

Salem/Mcnary, OR (KSLE), launched 12:00Z, 11.5 hours before the alert went out and 372 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: 1911 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -89 m²/s²
0-3 km storm-relative helicity: 27 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 Medford, OR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 4:25 PM PDT, 5 minutes earlier.

Area forecast discussion, Jul 1, 4:25 PM PDT, 5 minutes before

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In the hours before

Special weather statement, Jul 1, 3:23 PM PDT, 1 hour 7 minutes before

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Special weather statement, Jul 1, 3:25 PM PDT, 1 hour 5 minutes before

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Special weather statement, Jul 1, 3:50 PM PDT, 40 minutes before

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Special weather statement, Jul 1, 3:52 PM PDT, 38 minutes before

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Local storm report, Jul 1, 4:15 PM PDT, 15 minutes before

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Special weather statement, Jul 1, 4:22 PM PDT, 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 6:21 PM PDT	Special Weather Statement	MFR		24 min
Jun 30, 6:30 PM PDT	Special Weather Statement	MFR		30 min
Jun 30, 6:31 PM PDT	Special Weather Statement	MFR		29 min
Jun 30, 6:36 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	24 min
Jun 30, 6:50 PM PDT	Special Weather Statement	MFR		25 min
Jun 30, 6:59 PM PDT	Special Weather Statement	MFR		31 min
Jun 30, 7:15 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	30 min
Jun 30, 7:49 PM PDT	Special Weather Statement	MFR	Jackson	26 min
Jun 30, 8:00 PM PDT	Severe Thunderstorm Warning	MFR	Jackson, Klamath	18 min
Jul 1, 12:54 PM PDT	Red Flag Warning	MFR	Harney, Klamath, Lake	31 hr
Jul 1, 2:35 PM PDT	Special Weather Statement	MFR		25 min
Jul 1, 3:05 PM PDT	Special Weather Statement	MFR		25 min
Jul 1, 3:23 PM PDT	Special Weather Statement	MFR	Klamath	52 min
Jul 1, 3:27 PM PDT	Severe Thunderstorm Warning	MFR	Douglas, Jackson, Klamath	33 min
Jul 1, 3:59 PM PDT	Severe Thunderstorm Warning	MFR	Douglas, Jackson, Klamath	29 min
Jun 30, 5:13 PM PDT	Special Weather Statement	MFR	Siskiyou	32 min
Jun 30, 5:33 PM PDT	Special Weather Statement	MFR	Siskiyou	27 min
Jun 30, 5:42 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	33 min
Jun 30, 6:20 PM PDT	Special Weather Statement	MFR	Siskiyou	25 min
Jun 30, 6:35 PM PDT	Severe Thunderstorm Warning	MFR	Siskiyou	25 min
Jun 30, 7:24 PM PDT	Special Weather Statement	MFR	Del Norte	36 min
Jul 1, 3:25 PM PDT	Special Weather Statement	MFR	Siskiyou	50 min
Jul 1, 3:50 PM PDT	Special Weather Statement	MFR	Modoc	40 min
Jul 1, 3:52 PM PDT	Special Weather Statement	MFR	Siskiyou	38 min
Jul 1, 4:22 PM PDT	Special Weather Statement	MFR	Siskiyou	53 min
Jul 1, 4:35 PM PDT	Special Weather Statement	MFR	Modoc	55 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.