Alert archive / California / Flash Flood Watches in 2016

Flash Flood Watch 6, NWS Medford, OR

October 14, 2016Siskiyou County, California

NWS Medford, OR issued this flash flood watch at Oct 14, 2016, 12:42 PM PDT for Siskiyou County, California. It took effect at Oct 15, 2016, 11:00 AM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Oct 14, 2016, 12:42 PM PDT (19:42 UTC)
In effect from: Oct 15, 2016, 11:00 AM PDT
Expired: Oct 15, 2016, 8:31 PM PDT
In force: 10 hr
Issued by: NWS Medford, OR
Flood severity: None

County Siskiyou County, CA

The radar

The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 19:41 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, 7.7 hours before the alert went out and 89 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: 20 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 110 kt
0-1 km storm-relative helicity: 246 m²/s²
0-3 km storm-relative helicity: 223 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 flash flood watch 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 flash flood watch went out at Oct 14, 9:23 AM PDT, 3 hours 19 minutes earlier.

Area forecast discussion, Oct 14, 9:23 AM PDT, 3 hours 19 minutes before

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In the hours before

Local storm report, Oct 14, 10:17 AM PDT, 2 hours 25 minutes before

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Local storm report, Oct 14, 10:18 AM PDT, 2 hours 24 minutes before

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Local storm report, Oct 14, 11:27 AM PDT, 1 hour 15 minutes before

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Local storm report, Oct 14, 11:29 AM PDT, 1 hour 13 minutes before

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Local storm report, Oct 14, 12:09 PM PDT, 33 minutes before

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Local storm report, Oct 14, 12:10 PM PDT, 32 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
Oct 14, 12:16 AM PDT	Areal Flood Advisory	MFR	Jackson	3 hr
Oct 14, 3:41 AM PDT	Areal Flood Advisory	MFR	Jackson	5 hr
Oct 14, 5:19 AM PDT	High Wind Warning	MFR	Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more	39 hr
Oct 14, 5:19 AM PDT	Wind Advisory	MFR	Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more	62 hr
Oct 14, 1:21 PM PDT	Flood Watch	MFR	Coos, Curry, Douglas, Josephine	31 hr

Nearby

Flash Flood Watches in California, 2016 Every flash flood watch in 2016

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.