Alert archive / Oregon / Red Flag Warnings in 2022

Red Flag Warning 17, NWS Medford, OR

August 9, 2022Harney County, Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California

NWS Medford, OR issued this red flag warning at Aug 9, 2022, 9:12 PM PDT for Harney County, Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Aug 10, 2022, 2:00 PM PDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2022, 9:12 PM PDT (04:12 UTC)
In effect from: Aug 10, 2022, 2:00 PM PDT
Expired: Aug 10, 2022, 9:00 PM PDT
In force: 7 hr
Issued by: NWS Medford, OR

Counties Modoc County, CA, Siskiyou County, CA, Harney County, OR, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 156 km from the middle of the area, began a volume at 04:13 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

Medford/Jackson, OR (KMFR), launched 00:00Z, 4.2 hours before the alert went out and 160 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: 55 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 3395 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 221 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 red flag 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 red flag warning went out at Aug 9, 8:48 PM PDT, 24 minutes earlier.

Area forecast discussion, Aug 9, 8:48 PM PDT, 24 minutes before

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In the hours before

Special weather statement, Aug 9, 4:45 PM PDT, 4 hours 27 minutes before

Special Weather Statement
National Weather Service Medford OR
445 PM PDT Tue Aug 9 2022

ORZ031-100015-
Central and Eastern Lake County OR-
445 PM PDT Tue Aug 9 2022

...A strong thunderstorm will impact portions of southeastern Lake
County through 515 PM PDT...

At 444 PM PDT, Doppler radar was tracking a strong thunderstorm near
Adel, or 25 miles east of Lakeview, moving northeast at 40 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Warner Valley Scenic Overlook, Adel and Warner Wetlands.

This includes Warner Highway 140 in Oregon between mile markers 20
and 21, and between mile markers 28 and 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4214 11979 4221 12004 4269 11991 4247 11943
TIME...MOT...LOC 2344Z 208DEG 33KT 4227 11985

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

MAS

Special weather statement, Aug 9, 4:50 PM PDT, 4 hours 22 minutes before

Special Weather Statement
National Weather Service Medford OR
450 PM PDT Tue Aug 9 2022

CAZ085-100015-
Modoc County CA-
450 PM PDT Tue Aug 9 2022

...A strong thunderstorm will impact portions of southeastern Modoc
County through 515 PM PDT...

At 449 PM PDT, Doppler radar was tracking a strong thunderstorm near
Soup Spring Campground, or 14 miles south of Cedarville, moving north
at 40 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pepperdine Campground, Highway 299 At Cedar Pass, Soup Spring
Campground, Mill Creek Falls Campground, Cedar Pass Campground and
Cedar Pass Ski Area.

This includes the following highways...
 Highway 299 in California between mile markers 48 and 56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4170 12038 4170 12023 4163 12023 4159 12019
      4147 12019 4137 12013 4127 12012 4124 12010
      4124 12033
TIME...MOT...LOC 2349Z 180DEG 34KT 4132 12021

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

SCHAAF

Special weather statement, Aug 9, 5:14 PM PDT, 3 hours 58 minutes before

Special Weather Statement
National Weather Service Medford OR
514 PM PDT Tue Aug 9 2022

ORZ031-100100-
Central and Eastern Lake County OR-
514 PM PDT Tue Aug 9 2022

...A line of strong thunderstorms will impact portions of
southeastern Lake County through 600 PM PDT...

At 513 PM PDT, Doppler radar was tracking a line of strong
thunderstorms near Warner Valley Scenic Overlook, or 40 miles
northeast of Lakeview, moving east to northeast at 40 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Warner Valley Scenic Overlook, Warner Wetlands and Doherty Slide
Hang-Gliding Launch.

This includes Warner Highway 140 in Oregon between mile markers 41
and 62.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4200 11973 4214 11972 4235 11976 4240 11991
      4275 11980 4274 11936 4199 11936
TIME...MOT...LOC 0013Z 207DEG 34KT 4251 11968

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

MAS

Local storm report, Aug 9, 6:53 PM PDT, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
653 PM PDT TUE AUG 9 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0255 PM     TSTM WND DMG     3 E FORT ROCK           43.36N 120.99W
08/09/2022                   LAKE               OR   LAW ENFORCEMENT

            SHERIFF RELAYED REPORTS FROM PUBLIC
            REGARDING A COUPLE OF HAY BARNS COLLAPSING
            FROM THE WINDS. TIME ESTIMATED FROM RADAR.

&&

BS

Special weather statement, Aug 9, 7:29 PM PDT, 1 hour 43 minutes before

Special Weather Statement
National Weather Service Medford OR
729 PM PDT Tue Aug 9 2022

ORZ031-100300-
Central and Eastern Lake County OR-
729 PM PDT Tue Aug 9 2022

...A strong thunderstorm will impact portions of central Lake County
through 800 PM PDT...

At 728 PM PDT, Doppler radar was tracking a strong thunderstorm near
Abert Rim Geology, or 27 miles north of Lakeview, moving north at 30
mph.

HAZARD...Wind gusts 40 to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Abert Rim Geology.

This includes the following highways...
 Highway 31 in Oregon between mile markers 114 and 118.
 US 395 in Oregon between mile markers 65 and 86.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4253 12019 4251 12031 4283 12042 4286 12006
TIME...MOT...LOC 0228Z 181DEG 27KT 4259 12026

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

BTL

Special weather statement, Aug 9, 8:32 PM PDT, 40 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
Aug 9, 5:14 PM PDT	Special Weather Statement	MFR		46 min
Aug 9, 7:29 PM PDT	Special Weather Statement	MFR	Lake	31 min
Aug 9, 7:53 PM PDT	Severe Thunderstorm Warning	MFR	Lake	37 min
Aug 9, 8:32 PM PDT	Special Weather Statement	MFR	Lake	13 min
Aug 9, 10:34 PM PDT	Special Marine Warning	MFR		26 min
Aug 10, 1:24 PM PDT	Red Flag Warning	MFR	Klamath, Lake	32 hr
Aug 10, 3:15 AM PDT	Fire Weather Watch	MFR	Modoc, Siskiyou	10 hr

Nearby

Red Flag Warnings in Oregon, 2022 Red Flag Warnings in California, 2022 Every red flag warning in 2022

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.