Alert archive / Oregon / Dense Smoke Advisories in 2017

Dense Smoke Advisory 3, NWS Medford, OR

August 28, 2017Curry County, Oregon

NWS Medford, OR issued this dense smoke advisory at Aug 28, 2017, 7:03 AM PDT for Curry County, Oregon. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Aug 28, 2017, 7:03 AM PDT (14:03 UTC)
Expired: Aug 28, 2017, 12:00 PM PDT
In force: 5 hr
Issued by: NWS Medford, OR

County Curry County, OR

The radar

The Medford radar (KMAX), 130 km from the middle of the area, began a volume at 14:06 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 12:00Z, 2.1 hours before the alert went out and 117 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: 2386 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 55 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 dense smoke advisory 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 dense smoke advisory went out at Aug 28, 3:46 AM PDT, 3 hours 17 minutes earlier.

Area forecast discussion, Aug 28, 3:46 AM PDT, 3 hours 17 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 28, 4:28 AM PDT	Fire Weather Watch	MFR	Klamath, Lake	10 hr
Aug 28, 2:50 PM PDT	Fire Weather Watch	MFR	Klamath, Lake	24 hr
Aug 28, 2:50 PM PDT	Red Flag Warning	MFR	Klamath, Lake	29 hr
Aug 28, 2:09 PM PDT	Dense Smoke Advisory	MFR	Siskiyou	46 hr

Nearby

Dense Smoke Advisories in Oregon, 2017 Every dense smoke advisory in 2017

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.