Alert archive / Oregon / Flood Watches in 2017

Flood Watch 4, NWS Medford, OR

February 7, 20177 counties in Oregon; Modoc County, Siskiyou County, California

NWS Medford, OR issued this flood watch at Feb 7, 2017, 4:20 AM PST for 7 counties in Oregon; Modoc County, Siskiyou County, California. It took effect at Feb 8, 2017, 4:00 AM PST. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued
Feb 7, 2017, 4:20 AM PST (12:20 UTC)
In effect from
Feb 8, 2017, 4:00 AM PST
Expired
Feb 9, 2017, 6:20 PM PST
In force
38 hr
Issued by
NWS Medford, OR
Flood severity
None

Counties Modoc County, CA, Siskiyou County, CA, Coos County, OR, Curry County, OR, Douglas County, OR, Jackson County, OR, Josephine County, OR, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 47 km from the middle of the area, began a volume at 12:22 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

Medford/Jackson, OR (KMFR), launched 12:00Z, 0.3 hours before the alert went out and 23 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-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2017-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2017-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 387 square meters per square second.1939587897117136156175Sfc1 km3 km6 km9 kmRMLM
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
513 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
387 m²/s²
0-3 km storm-relative helicity
688 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 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 flood watch went out at Feb 7, 4:13 AM PST, 7 minutes earlier.

Area forecast discussion, Feb 7, 4:13 AM PST, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 7, 3:18 AM PSTHigh Wind WatchMFRCoos, Curry, Douglas, Klamath, Lake12 hr
Feb 7, 3:18 AM PSTHigh Wind WarningMFRKlamath, Lake18 hr
Feb 7, 8:37 AM PSTRiver Flood WatchMFRKlamath, Lake30 hr
Feb 7, 3:07 PM PSTGale WarningMFR43 hr
Feb 7, 3:07 PM PSTSmall Craft AdvisoryMFR25 hr
Feb 7, 3:07 PM PSTStorm WatchMFR12 hr
Feb 7, 3:18 PM PSTHigh Wind WatchMFRDouglas, Jackson, Josephine, Klamath12 hr
Feb 7, 3:18 PM PSTHigh Wind WarningMFRCoos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more51 hr
Feb 7, 3:18 PM PSTWind AdvisoryMFRKlamath, Lake6 hr
Feb 7, 3:18 PM PSTWind AdvisoryMFRCoos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more51 hr
Feb 6, 7:04 PM PSTRiver Flood WatchMFRModoc2 hr
Feb 6, 9:11 PM PSTRiver Flood WarningMFRModoc6 days
Feb 7, 8:37 AM PSTRiver Flood WatchMFRSiskiyou30 hr
Feb 7, 8:37 AM PSTRiver Flood WatchMFRSiskiyou30 hr

Nearby

Flood Watches in Oregon, 2017Flood Watches in California, 2017Every flood watch 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.