Oregon, 2017

Flood in Oregon, February 9 to 10, 2017

February 9 to 10, 2017 · NWS MFR · 1 event in 1 county or zone

Heavy rain combined with snow melt caused flooding along the Rogue River in southwest Oregon.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MFR wrote it up.

Heavy rain combined with snow melt caused flooding along the Rogue River in southwest Oregon.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Feb 9, 2:58 PM PST, 47 minutes earlier.

Area forecast discussion, Feb 9, 2:58 PM PST, 47 minutes before
Area Forecast Discussion
National Weather Service Medford OR
258 PM PST Thu Feb 9 2017

.SHORT TERM...

The mature low off shore continues to weaken as shown my pressure
gradients from major airports in the region. The Medford and
Redding pressure gradient has diminished down to 3 from 8 earlier
this morning. Still kept the wind warning in the Cascades out to
0z because the front is a little slower than expected. Squaw peak
is still gusting to 60mph, so the westward facing Cascades should
still see some of the strong elevated winds ahead of the front.
Eventually later this evening, these winds should continue to
diminish as the low continues to weaken.

As the front pushes further onshore and eventually diminishes,
post frontal showers and rain will continue along the coast and
for some inland areas. The upper level energy aloft will then
drift south and pull up some more moisture for Friday giving us
additional rainfall at the coast and along the Cascades primarily.
As cooler temperatures move inland, we are expecting snow along
the Cascade range during Friday. Some of the snow fall totals from
5000 to 7000 feet will be around 6 inches over 18 hours, which is
right on the cusp of winter weather advisory criteria.

As for additional flooding, it looks like the bulk of the heavy
rain is over for most of the inland areas. We're expecting more
rain along the coast and near the Brookings area into Friday with
no major impacts expected. As the trough to the south passes late
Friday evening, high pressure will gradually begin to build into
the weekend bringing rather pleasant weather.

The only other mention left is fog with dewpoints currently
sitting at 52 degrees in Medford. If we get a little bit of
clearing tonight and calm enough winds, some patchy fog is
possible. Didn't add it to the weather grids right now as
confident was a little to low.

CZS

.LONG TERM...(Monday through Thursday)...Strong ridging will
maintain dry weather across the forecast area Monday and Tuesday
although by Tuesday mid and high level clouds will be spreading into
the area. The coastal waters could see light rain ahead of the next
system. Both the ECMWF and the GFS are close in timing and bring the
next front inside 130W Tuesday night. Rain chance increases across
the west side of the Cascades Wednesday, and by Thursday both models
spread precipitation into all of our forecast area. Snow levels
during these two days will be in the 6500-7000 foot range but are
expected to lower 5000-6000 foot range Thursday night. The pattern
looks wet beyond Thursday with the snow levels falling to around 400
feet next weekend. /FB

&&

.AVIATION...09/18Z TAF CYCLE...LLWS will be an issue across the
forecast area at least through mid afternoon. An A319 aircraft
reported mod-sev turbulence between 8500-9500 feet over MFR at
1630Z.

MVFR will remain widespread along the coast with areas of
IFR/LIFR...mainly along the south coast near Gold Beach and
Brookings. Periods of moderate to heavy rainfall and strong, gusty
south winds will continue in those areas today. Winds will decrease
only slightly this evening as another system moves by to the north
and continues showers with a mix of MVFR and VFR conditions.

Inland, a mix of VFR and MVFR ceilings with terrain obscuration and
widespread moderate to heavy precipitation through the day. Also,
gusty southerly winds will include wind gusts of around 35 kt at
KLMT through today. An airport weather warning is in effect for this
hazard. Winds will decrease this evening and rainfall will decrease
in coverage and intensity.

Wind situation will be challenging at KMFR. As the front moves
through the area early this afternoon, we expect winds to suddenly
increase and could be in the 20-30kt range. This episode of gusty
wind is expected to be abrupt but short lived. /FB

&&

.MARINE...Updated 900 AM PST Thursday 9 February 2017...Winds have
decreased below storm force but are still in the Gale Force strength
especially the gust. This will generate very high and dangerous seas
of around 15 to 18 feet at a dominant period of 11 seconds, and
mariners should consider remaining in port until the storm passes.
The cold front will move onshore this afternoon. Behind it, winds
will veer to southwest and subside to advisory strength by this
evening.

A low pressure moving northeast toward Washington will bring an
increase in winds tonight with occasional gale force gusts into
early Friday morning...mainly north of Cape Blanco. Seas will remain
high and very steep into Friday then likely will be steep during the
weekend with a moderate northwest swell of around 8 feet at 11
seconds. Northerly winds may reach advisory strength this weekend,
especially in the outer waters south of Cape Blanco.
Conditions will improve Monday through Tuesday. The next cold front
has the potential for gales on Wednesday with seas becoming high
again. /FB

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Wind Warning until 7 PM PST this evening for ORZ030-031.
     Flood Watch until 10 PM PST this evening for ORZ024>031.
     Wind Advisory until 7 PM PST this evening for ORZ030-031.
     High Surf Advisory until 7 PM PST this evening for ORZ021-022.
     Wind Advisory until 4 PM PST this afternoon for ORZ023>025.
     High Wind Warning until 4 PM PST this afternoon for ORZ027-028.
     Coastal Flood Warning until 3 PM PST this afternoon for ORZ021.
     Wind Advisory until 4 PM PST this afternoon for ORZ029.

CA...High Wind Warning until 7 PM PST this evening for CAZ085.
     Flood Watch until 10 PM PST this evening for CAZ085.
     Wind Advisory until 7 PM PST this evening for CAZ085.
     Wind Advisory until 4 PM PST this afternoon for CAZ084.
     Flash Flood Watch until 4 PM PST this afternoon for CAZ080.
     High Wind Warning until 4 PM PST this afternoon for CAZ083.

Pacific Coastal Waters...High Surf Advisory until 7 PM PST this evening for PZZ350-356.
     Gale Warning until 4 PM PST this afternoon for
     PZZ350-356-370-376.
     Hazardous Seas Warning until 4 PM PST Friday for
     PZZ350-356-370-376.

CZS/FJB/MAS

In the hours before

Local storm report, Feb 9, 11:59 AM PST, 3 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1159 AM PST THU FEB 9 2017

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

0930 AM     NON-TSTM WND GST 2 NW BROOKINGS          42.08N 124.32W
02/09/2017  E41 MPH          CURRY              OR   TRAINED SPOTTER

            REPORTS TREES DOWN IN HIS NEIGHBORHOOD.
            ESTIMATES TREES WERE ABOUT 16-18 INCHES IN
            DIAMETER.

&&

MND
Local storm report, Feb 9, 12:05 PM PST, 3 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1205 PM PST THU FEB 9 2017

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

1205 PM     HEAVY RAIN       3 SSE MOUNT SHASTA      41.28N 122.30W
02/09/2017  M3.56 INCH       SISKIYOU           CA   TRAINED SPOTTER

            TOTAL AS NOON PST.

&&

MND
Local storm report, Feb 9, 2:07 PM PST, 1 hour 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
207 PM PST THU FEB 9 2017

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

1230 PM     HEAVY RAIN       1 NNE LANGLOIS          42.94N 124.45W
02/09/2017  M2.79 INCH       CURRY              OR   TRAINED SPOTTER

            TOTAL SINCE MIDNIGHT PST.

&&

MND
Local storm report, Feb 9, 2:08 PM PST, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
208 PM PST THU FEB 9 2017

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

1230 PM     HEAVY RAIN       1 NNE LANGLOIS          42.94N 124.45W
02/09/2017  M5.59 INCH       CURRY              OR   TRAINED SPOTTER

            TOTAL IS AS OF NOON PST.

&&

MND
Local storm report, Feb 9, 2:09 PM PST, 1 hour 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
209 PM PST THU FEB 9 2017

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

0208 PM     HEAVY RAIN       1 NNW HARBOR            42.05N 124.26W
02/09/2017  M3.73 INCH       CURRY              OR   TRAINED SPOTTER

            TOTAL FROM 9 AM PST 2/8/2017 THROUGH 1230 PM
            PST 2/9/2017.

&&

MND
Local storm report, Feb 9, 3:16 PM PST, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
316 PM PST THU FEB 9 2017

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

0315 PM     HEAVY RAIN       2 WSW OBRIEN            42.06N 123.73W
02/09/2017  M2.50 INCH       JOSEPHINE          OR   TRAINED SPOTTER

            .

&&

MND

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Curry

When
February 9, 3:45 PM PST to February 10, 11:00 AM PST
Where
Curry County, 1.71 mi NW of Marial to 2.07 mi ENE of Marial
Cause
Heavy Rain / Snow Melt
Reported by
Official NWS Observations
Coordinates
42.740, -123.900

The Rogue River near Agness exceeded flood stage (17.0 feet) at 09/1545 PST. The river crested at 18.64 feet at 09/2100 PST. The river fell below flood stage at 10/1100 PST.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Oregon in 2017Every state in 2017This day in weather historyWarnings in Oregon, February 2017

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 670098.