Saturday, August24, 2019

Marine Weather and Tides
Chiloquin, OR

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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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Sunrise 6:21AMSunset 7:57PM Friday August 23, 2019 9:20 PM PDT (04:20 UTC) Moonrise 11:18PMMoonset 1:16PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Chiloquin, OR
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location: 42.73, -121.98     debug

Area Discussion for - Medford, OR
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Fxus66 kmfr 240359
area forecast discussion
national weather service medford or
859 pm pdt Fri aug 23 2019

The only change to the forecast this evening was increasing cloud
cover due to the upper level clouds moving through oregon. High
relative humidity aloft and a strong jet should keep the upper
level clouds pushing through the area tonight.

Read the previous discussion below for more info on the upcoming
mini heat wave and possible thunderstorms next week.


Aviation For the 23 18z tafs...

vfr conditions are expected to prevail until this evening when
areas ifr and lifr are expected to begin to develop along and near
the douglas and curry county coastlines. Overnight ifr to lifr
low clouds and fog are expected to develop in these areas, as well
as further inland into the coquille river valley.

Overall, conditions are expected to be very similar to what was
observed this morning along and near the coast. We're not
expecting as much fog and low cloud development into interior
douglas county as we saw in the last 24 hours. Dissipation time
for coastal and near coastal areas is likely to be a little slower
than it was earlier today.

Btl smith

Marine Updated 230 pm pdt Friday, 23 august 2019...

a thermal trough along the coast will weaken tonight. This will
result in winds decreasing over most of the coastal waters.

However, the thermal trough will stay just strong enough to keep
seas rather steep south of CAPE blanco. So, have cancelled the
hazardous seas warning and replaced it with a small craft
advisory. Also, have cancelled the small craft advisory for areas
north of CAPE blanco. This will be short lived as the thermal
trough strengthens Sunday afternoon and becomes very strong
Monday and Tuesday. This will crank up the winds again and the
steep seas will return. Could see gales also but for now, have
issued a hazardous seas watch for the outer waters south of coos
bay beginning Sunday afternoon.


Fire weather Updated 200 pm pdt Friday 23 august 2019... It will
remain dry through at least the middle of next week. There are two
main short term concerns. First will be gusty winds east of the
cascades Saturday afternoon and evening with low relative humidity.

Second is breezy winds with moderate to locally poor overnight
recoveries near and at the ridges in fire zones 618, 619 and 620
Sunday night and Monday night. However were not expecting any
critical fire concerns in these areas, therefore we'll just
highlight it in the fire weather forecast.

The main driving force for gusty winds east of the cascades Saturday
afternoon and evening will be stronger winds aloft (at 700 and
600mb) along with an increasing pressure gradient and it will bring
speeds stronger than normal at 12 to 18 mph with gusts up to 25 mph.

Temperatures will be warmer today this afternoon compared to
yesterday and won't vary much through the weekend. This is because
we'll have a weak upper trough will slip into the region tomorrow
into Sunday. Therefore, temperatures won't change much, if at all
for most locations. However relative humidity may come up just a

The hottest and driest conditions are likely on Monday, Tuesday and
Wednesday with triple digit readings likely for interior westside
valleys Tuesday and Wednesday.

The first hint any potential thunder could be Thursday afternoon and
evening. It's not a slam dunk, but something we'll keep a close
watch on.


Prev discussion issued 253 pm pdt Fri aug 23 2019
temperatures across areas inland from the coast are
currently running about 10 degrees above where they were this time
yesterday. Along the coast, however, temperatures are down
compared to yesterday- as much as 11 degrees in the brookings
area. On...

tonight through Saturday morning we're expecting marine layer low
clouds and fog to develop again from about CAPE blanco northward
and into much of coos county. A frontal system pushing in north of
us will increase the onshore flow along the coast a little, but
not much, as it will be riding by to the north. This frontal
system and cooler northerly flow behind it will serve to knock
temperatures down some this weekend, primarily on the west side,
though not by more than about 5 degrees from today's highs.

We're still expecting a fairly robust late season heat wave to
commence Monday and persist through Thursday, with the hottest
days on Tuesday and Wednesday. Current expectations are that
medford will reach 104f and 102f on Tuesday and Wednesday, which
is within a couple of degrees of daily record highs for each of
those days. We anticipate issuing an excessive heat advisory or
watch for this heat wave sometime this weekend.

A shortwave trough is expected to ride northward in southerly flow
Wednesday into Thursday of next week. At this point, we've
expanded the thunderstorm threat a bit for Thursday based on
signals from the GFS and GEFS mean. At this point, it does appear
that we'll probably see some thunderstorms across the area
Wednesday into Thursday (even possibly Wednesday night), but
pinning it down to where and when at this lead time is not
possible. Therefore, we'll be honing in on that time period for
future updates to the forecast.


Mfr watches warnings advisories
Or... None.

Ca... None.

Pacific coastal waters... Small craft advisory until 11 am pdt Sunday for pzz356-376.

Hazardous seas watch from Sunday morning through Tuesday morning
for pzz370-376.

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Klamath Falls International Airport, OR42 mi2.5 hrsNW 1110.00 miFair81°F39°F23%1010.2 hPa

Link to 5 minute data for KLMT

Wind History from LMT (wind in knots)
Last 24hrNE5CalmNE7CalmN4N6NE5NE5CalmNE4CalmN843CalmNW343SE5NE3E3NW11NW7NW4
1 day agoNW4CalmNE3W6CalmCalmCalmSW3SE4CalmCalmCalmCalmCalmCalm5E7NW6NW7NW12NW15NW14NW10N7
2 days agoW8S4CalmCalmCalmCalmCalmCalmCalmNW3SE3CalmSE3W73W5W12W10NW15NW10NW8NW18N9N3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Medford, OR (0,6,7,8)
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Ground Weather Radar Station Medford, OR
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