Alert archive / California / River Flood Advisories in 2017
River Flood Advisory 6, NWS Eureka, CA
NWS Eureka, CA issued this river flood advisory at Feb 7, 2017, 3:40 PM PST for Mendocino County, California. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 7, 2017, 3:40 PM PST (23:40 UTC)
- Expired
- Feb 7, 2017, 11:30 PM PST
- In force
- 8 hr
- Issued by
- NWS Eureka, CA
- Area
- Storm-based polygon
County Mendocino County, CA
The radar
The Beale AFB radar (KBBX), 140 km from the middle of the area, began a volume at 23:43 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 river
Written for the forecast point Russian River near Hopland (HOPC1). The gauge peaked at 18.56 ft at Feb 7, 2017, 4:00 PM PST.
- Minor stage
- 15 ft
- Moderate stage
- 23 ft
- Major stage
- 26 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 11462500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
492
WGUS86 KEKA 072340
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
340 PM PST TUE FEB 7 2017
...
...The National Weather Service in Eureka has issued a Flood Advisory
for the Russian River...
Russian River near Hopland affecting Mendocino County
The Russian River near Hopland has crested and will begin to recede
quickly this evening.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SAFETY MESSAGE...
Do not drive your car across flooded roadways. It only takes about
two feet of water to float most vehicles. For area road conditions...
call CALTRANS at 1-800-427-7623.
Stay tuned to developments by listening to NOAA Weather Radio or your
local TV or radio stations.
The next statement will be issued at 10 PM PST Tuesday February 7th or as
warranted by changing conditions.
&&
CAC045-080730-
/O.NEW.KEKA.FL.Y.0006.170207T2340Z-170208T0730Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
340 PM PST TUE FEB 7 2017
The National Weather Service in Eureka has issued a
* Flood Advisory for
the Russian River near Hopland.
* until this evening.
* At 3:00 PM Tuesday the stage Was 18.5 feet.
* Flood Stage is 21.0 feet.
* FORECAST...This river is forecast to fall below monitor stage of
18.0 FT this afternoon. Then forecast to recede to near 14.0 FT late
this evening.
&&
LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
3909 12313 3894 12304
$$1 follow-up statement
281
WGUS86 KEKA 080527
FLSEKA
FLOOD ADVISORY
NATIONAL WEATHER SERVICE EUREKA, CA
927 PM PST TUE FEB 7 2017
...The Flood Advisory is cancelled for the
Russian River near Hopland affecting Mendocino County...
Russian River near Hopland affecting Mendocino County.
&&
CAC045-080557-
/O.CAN.KEKA.FL.Y.0006.000000T0000Z-170208T0600Z/
/HOPC1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
927 PM PST TUE FEB 7 2017
The Flood Advisory is cancelled for
The Russian River near Hopland.
&&
LAT...LON 3896 12314 3904 12320 3913 12324 3917 12315
3909 12313 3894 12304
$$What forecasters said that day
The local office's own words before this river flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this river flood advisory went out at Feb 7, 5:28 AM PST, 10 hours 12 minutes earlier.
Area forecast discussion, Feb 7, 5:28 AM PST, 10 hours 12 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
528 AM PST Tue Feb 7 2017
.SYNOPSIS...
Strong wind gusts and widespread rainfall, some moderate to heavy at
times, will persist through this morning. Precipitation will become
more showery in nature by this afternoon. Another potent storm
system will bring heavy rainfall and strong wind gusts to all of
northwestern california for wednesday through Thursday.
&&
.DISCUSSION...
.SHORT TERM...
(Today and Tonight)
Strong wind gusts continue this morning, with the highest
observations for the lower elevations having been 48 mph here at the
office on woodley Island in eureka, and 53 mph at Arcata airport.
For the higher elevations, Cooskie Mountain in the King Range in
southwestern Humboldt County hit 66 mph, with 70 mph observed at
Ship Mountain in Del Norte County. This has been a result in a
farther northward shift in a stout low-level jet that was
originally forecast to stay south of the region yesterday, as it was
aimed at the Bay Area. However, the evening shift noted a northward
shift with this feature last night on the 00z run and hoisted the
Wind Advisory, which was a good call and has worked out nicely.
This has been associated with a surface low pressure system, around
995mb, that is moving ashore at Crescent City at 4 AM, per SPC
mesoanalysis and observational data. This storm has brought
widespread rainfall to the region, as it continues to move across
the region. The rainfall has been moderate to heavy in intensity at
times, and this trend will continue through late morning.
precipitation will become more showery in nature by early this
afternoon, as the low-level jet peels east, and dynamical forcing
decreases.
.LONG TERM...
(Wednesday through next Monday)
...High winds and heavy rainfall expected Wednesday through
Thursday...
Another potent storm system will rapidly move into the area on the
heels of todays storm system, with the latest numerical guidance
showing this next storm rapidly strengthening to around 980mb by
early Thursday morning across the outer waters, west of Washington
state. An attendant warm front will surge north ahead of this system
wednesday afternoon, followed by a prefrontal trough crossing the
region late Thursday morning/early afternoon. Precipitation will
increase along both of these features, becoming moderate to heavy at
times in terms of rainfall intensity once again. Additionally, a
strong low-level jet at 850mb of 85 to 90 knots along the Oregon
coast, and 70 to 75 knots approaching the Redwood Coast. These winds
rapidly increase as one ascends, with lower sounding levels at 925mb
(roughly 2500 feet) showing winds nearing 75 knots along the Redwood
Coast. This spells another very windy period for the area,
especially for higher elevations, and a High Wind Watch is already
in place, with a likely upgrade to a warning or advisory for
portions of the forecast area.
The last round of precipitation will be on Friday, as a cold front
crosses the region. Precipitation will be lighter with a somewhat
decreased coverage compared to the days prior. Short-wave ridging
aloft will build across the region for the weekend through early
next week, with mainly clear skies, light winds, and dry conditions
expected. /PD
&&
.AVIATION...
Rains and winds will be on the decrease thru the
remainder of the morning hours. However, strong low-level wind shear
will be a concern through mid-morning at all TAF sites. Ceilings
will be variable between MVFR and VFR thru much of the day. /SEC
&&
.MARINE...
Gale force winds S winds ramped up over the S waters as
expected with a nose of gales pushing N along the Redwood Coast as
well. Marine winds should be on the decline over the next few hours,
with the Gale Warning expiring at 9 AM.
Another significant increase in winds is expected Wednesday
afternoon and Wednesday night. The strongest winds are expected late
Wednesday night and Thursday morning when gales are anticipated.
Occasional gusts to near storm force are once again possible in the
N offshore waters.
Several NW swell trains will impact the area over the next few days.
The first is moving across the area now with heights around 4 feet.
A smaller swell train is forecast to affect the area late today and
into Wednesday. Another NW swell train is expected to arrive by
Saturday with initial periods of around 22 seconds. /SEC
&&
.COASTAL...
Tidal anomalies were running around 1.5 feet at the North
Spit buoy again tonight as the S to SW winds increased. This anomaly
has come back down to around 1.2 feet as winds have begun to
diminish. However, high tides later this morning may exceed 8.8
feet. The combination of these elevated tide heights and runoff from
overnight rains will likely produce minor flooding around Humboldt
Bay, particularly around King Salmon and the Arcata Bottoms. High
tide is at 809 AM, and a Coastal Flood Advisory is in effect until
1000 AM. /SEC
&&
.HYDROLOGY...
The Navarro River at Navarro is still forecast to rise
just above flood stage by early this afternoon. The Eel River at
Fernbridge is still forecast to crest just below flood stage
tonight. Will leave the watch in place for now and defer to the next
RFC forecast package for the decision to upgrade to a warning or
not. The Russian River at Hopland is still forecast to rise over 17
feet, and the Flood Advisory for that point will remain in effect.
Several other rivers are forecast to rise above monitor stage, and
these rivers will continue to be monitored due to recent heavy
rainfall. /SEC
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Flood Watch until 4 PM PST this afternoon for CAZ103-104-106-
108>113.
Wind Advisory until 11 AM PST this morning for CAZ104>106-
108>113.
High Wind Watch from Wednesday afternoon through Thursday
morning for CAZ101>108.
Coastal Flood Advisory until 10 AM PST this morning for CAZ103.
NORTHWEST CALIFORNIA COASTAL WATERS...Coastal Flood Advisory until 10 AM PST this morning for PZZ410.
Gale Watch from Wednesday evening through Thursday morning for
PZZ450.
Small Craft Advisory until 6 PM PST this evening for PZZ450-470.
Gale Watch from Wednesday afternoon through Thursday morning for
PZZ470.
Gale Warning until 9 AM PST this morning for PZZ455-475.
&&
Visit us at http://www.weather.gov/eureka
Follow us on Facebook and Twitter at:
http://www.facebook.com/NWSEureka
http://www.twitter.com/nwseureka
For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.pngHazardous weather outlook, Feb 7, 2:40 PM PST, 1 hour before
Hazardous Weather Outlook National Weather Service Eureka CA 240 PM PST Tue Feb 7 2017 CAZ101-082245- Coastal Del Norte- 240 PM PST Tue Feb 7 2017 ...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 11 AM PST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 9 AM PST THURSDAY... ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Coastal Flood Advisory IS CURRENTLY IN EFFECT. A High Wind Warning IS CURRENTLY IN EFFECT. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ112-113-082245- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 240 PM PST Tue Feb 7 2017 ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ102-105-106-082245- Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 240 PM PST Tue Feb 7 2017 ...HIGH WIND WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 8 AM PST THURSDAY... ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A High Wind Warning IS CURRENTLY IN EFFECT. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ107-108-110-111-082245- Northern Trinity-Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior- 240 PM PST Tue Feb 7 2017 ...WIND ADVISORY IN EFFECT FROM 5 PM WEDNESDAY TO 8 AM PST THURSDAY... ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Wind Advisory IS CURRENTLY IN EFFECT. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ103-109-082245- Northern Humboldt Coast-Mendocino Coast- 240 PM PST Tue Feb 7 2017 ...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 11 AM PST WEDNESDAY... ...WIND ADVISORY IN EFFECT FROM 5 PM WEDNESDAY TO 8 AM PST THURSDAY... ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Coastal Flood Advisory IS CURRENTLY IN EFFECT. A Wind Advisory IS CURRENTLY IN EFFECT. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ104-082245- Southwestern Humboldt- 240 PM PST Tue Feb 7 2017 ...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 11 AM PST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 8 AM PST THURSDAY... ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A Coastal Flood Advisory IS CURRENTLY IN EFFECT. A High Wind Warning IS CURRENTLY IN EFFECT. A Flood Watch IS CURRENTLY IN EFFECT. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 9:34 PM PST | Coastal Flood Advisory | EKA | Humboldt | 12 hr |
| Feb 7, 3:29 AM PST | Gale Watch | EKA | 11 hr | |
| Feb 7, 5:18 AM PST | River Flood Warning | EKA | Mendocino | 3 days |
| Feb 7, 8:44 AM PST | Hazardous Seas Warning | EKA | 6 hr | |
| Feb 7, 9:13 AM PST | River Flood Warning | EKA | Humboldt | 3 days |
| Feb 7, 9:32 AM PST | River Flood Warning | EKA | Mendocino | 16 hr |
| Feb 7, 9:47 AM PST | River Flood Watch | EKA | Del Norte, Humboldt | 35 hr |
| Feb 7, 9:47 AM PST | River Flood Watch | EKA | Humboldt | 47 hr |
| Feb 7, 2:09 PM PST | Flood Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 50 hr |
| Feb 7, 2:10 PM PST | High Wind Warning | EKA | Del Norte, Humboldt | 44 hr |
| Feb 7, 2:10 PM PST | Wind Advisory | EKA | Humboldt, Mendocino, Trinity | 44 hr |
| Feb 7, 2:11 PM PST | Coastal Flood Advisory | EKA | Del Norte, Humboldt, Mendocino | 21 hr |
| Feb 7, 2:40 PM PST | Small Craft Advisory | EKA | 26 hr | |
| Feb 7, 2:40 PM PST | Storm Watch | EKA | 13 hr |
Nearby
River Flood Advisories in California, 2017Every river flood 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.