San Luis Obispo County Central Coast Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Flood Warning
Issued: 2:57 AM PST Jan. 17, 2019 – National Weather Service

... The Flash Flood Warning for northwestern Santa Barbara and
southern San Luis Obispo counties will expire at 300 am PST...

The heaviest rain has moved east of the area, so the Flash Flood
Warning will be allowed to expire. However, ponding of water on area
roadways and flooding of low lying areas may continue through the
early morning hours. Please continue to heed messages concerning
any Road closures.

Lat... Lon 3526 12022 3476 12026 3474 12064 3476 12065
      3485 12062 3489 12065 3489 12067 3491 12068
      3503 12064 3510 12064 3514 12066 3517 12071
      3517 12075 3536 12074


Db


Areal Flood Advisory, High Surf Warning, High Surf Advisory, Coastal Flood Advisory
Issued: 2:31 AM PST Jan. 17, 2019 – National Weather Service

... The flood advisory remains in effect until 445 am PST for San Luis
Obispo County...

At 212 am PST, Doppler radar and rain gauges continued to indicate
moderate to heavy rainfall which has caused widespread roadway
flooding. Rainfall rates reached over an inch per hour at times for
a few locations. An urban Flash Flood Warning is in effect for those
areas within the County. Otherwise, most areas will continue to
exceed a half of inch per hour. For many areas. There have been
several reports of roadway flooding including in and around Shandon,
Templeton as well as State Route 46 between Atascadero and Harmony.
Moderate to heavy rain will continue over the next few hours.
Rainfall rates of 0.30 to 0.60 inches per hour were common, and are
expected to continue through early this morning.

Isolated thunderstorms are expected as well. Rainfall rates of 0.50
to 0.75 inches are possible near thunderstorms and along and below
south and southwest facing slopes. The rain will cause widespread
ponding of water on area roadways overnight with some flooding of
low lying areas and intersection.Doppler radar indicated heavy rain
due to thunderstorms. This will cause minor flooding in the advisory
area.

Some locations that will experience flooding include...
San Luis Obispo, Paso Robles, Templeton, Morro Bay, Pismo Beach,
Atascadero, Arroyo Grande, Nipomo and Cambria.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.


Lat... Lon 3579 12019 3561 12019 3561 12009 3527 11981
      3526 11967 3518 11967 3508 11947 3490 11947
      3511 12008 3501 12033 3490 12031 3499 12044
      3497 12065 3469 12058 3457 12065 3514 12066
      3522 12088 3543 12089 3566 12130 3580 12135


Kaplan/db


1008 PM PST Wed Jan 16 2019

... High surf advisory remains in effect until 2 PM PST Thursday...
... High surf warning remains in effect from 2 PM Thursday to 9 PM
PST Friday...
... Coastal flood advisory remains in effect from 11 PM Thursday
to 9 PM PST Friday...

* surf... breaking waves will build to 8 to 12 feet through
Thursday morning. Surf will increase rapidly late Thursday
morning, reaching 20 to 25 feet by Friday. The surf will begin
to subside late Friday but high surf condition may persist into
Saturday morning. The highest surf will be on west and northwest
facing beaches.

* Coastal flooding... high tides of 6 to 6.5 feet at 6 am
Thursday and 6.5 to 7 feet at 7 am Friday will coincide with
the building surf. Minor coastal flooding is possible
Thursday, with moderate coastal flooding and significant beach
erosion likely on Friday. In addition, there is a risk of
breaking waves across the Morro Bay Harbor entrance.

* Impacts... there is an increased risk for ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Large
breaking waves can cause injury... wash people off beaches and
rocks... and capsize small boats near shore. Moderate coastal
flooding is possible over low-lying coastal areas including
beaches, beach parking lots and Harbor walkways, and with
vulnerable coastal roadways during the highest surf and tides.

Precautionary/preparedness actions...

A high surf advisory means that high surf will affect beaches in
the advisory area... producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

A high surf warning indicates that dangerous... battering waves
will pound the shoreline. This will result in life-threatening
conditions. Swim near a lifeguard. If caught in a rip current,
relax and float. Don't swim against the current. If able, swim in
a direction following the shoreline. If unable to escape, face
the shore and call or wave for help.

A coastal flood advisory indicates that surf and tides will
combine to generate flooding of low areas along the shore.







Wind Advisory
Issued: 11:05 PM PST Jan. 16, 2019 – National Weather Service

... Wind Advisory remains in effect until 9 am PST Thursday...

* winds... south to southeast winds 20 to 30 mph with gusts to 45
mph are expected through mid-morning Thursday.

* Impacts... gusty winds will make driving difficult, especially
for high profile vehicles. This includes highways 1, and 101
and state routes 46, 154, 166, 246.

Precautionary/preparedness actions...

When driving, use extra caution. Be prepared for sudden gusty
cross winds.





Special Statement
Issued: 1:59 AM PST Jan. 17, 2019 – National Weather Service

... Significant weather advisory for northwestern Ventura... Santa
Barbara and San Luis Obispo counties until 315 am PST...

At 152 am PST, Doppler radar was tracking a strong band of
thunderstorms across portions of San Luis Obispo and northern Santa
Barbara County. Rainfall rates have exceeded 0.75 inches per hour
with this rain band. This band of thunderstorms will cause brief
torrential rain, cloud to ground lightning, and wind gusts possibly
to 50 mph. Storms were moving east-northeast at 45 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Santa Maria... San Luis Obispo... Lompoc... Pismo Beach...
Santa Ynez... Point Conception... Arroyo Grande... Nipomo... Solvang...
Vandenberg Air Force Base... Los Alamos... Grover Beach... Guadalupe...
Buellton... Sisquoc... Figueroa Mountain... Santa Margarita...
Ventucopa... Vandenberg Village... lake Lopez... Oceano...
Black Mountain... and Carrizo Plain.

Precautionary/preparedness actions...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.


Lat... Lon 3561 12019 3561 12008 3544 11999 3544 11988
      3526 11981 3526 11967 3518 11966 3518 11956
      3509 11956 3508 11947 3490 11947 3487 11928
      3444 12045 3458 12065 3470 12060 3486 12061
      3490 12067 3513 12064 3525 12090 3568 12020
time... Mot... loc 0952z 240deg 49kt 3490 11998


Kaplan

159 am PST Thu Jan 17 2019

... Significant weather advisory for northwestern Ventura... Santa
Barbara and San Luis Obispo counties until 315 am PST...

At 152 am PST, Doppler radar was tracking a strong band of
thunderstorms across portions of San Luis Obispo and northern Santa
Barbara County. Rainfall rates have exceeded 0.75 inches per hour
with this rain band. This band of thunderstorms will cause brief
torrential rain, cloud to ground lightning, and wind gusts possibly
to 50 mph. Storms were moving east-northeast at 45 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Santa Maria... San Luis Obispo... Lompoc... Pismo Beach...
Santa Ynez... Point Conception... Arroyo Grande... Nipomo... Solvang...
Vandenberg Air Force Base... Los Alamos... Grover Beach... Guadalupe...
Buellton... Sisquoc... Figueroa Mountain... Santa Margarita...
Ventucopa... Vandenberg Village... lake Lopez... Oceano...
Black Mountain... and Carrizo Plain.

Precautionary/preparedness actions...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.


Lat... Lon 3561 12019 3561 12008 3544 11999 3544 11988
      3526 11981 3526 11967 3518 11966 3518 11956
      3509 11956 3508 11947 3490 11947 3487 11928
      3444 12045 3458 12065 3470 12060 3486 12061
      3490 12067 3513 12064 3525 12090 3568 12020
time... Mot... loc 0952z 240deg 49kt 3490 11998


Kaplan


Areal Flood Advisory, High Surf Warning, High Surf Advisory, Coastal Flood Advisory
Issued: 2:31 AM PST Jan. 17, 2019 – National Weather Service

... The flood advisory remains in effect until 445 am PST for San Luis
Obispo County...

At 212 am PST, Doppler radar and rain gauges continued to indicate
moderate to heavy rainfall which has caused widespread roadway
flooding. Rainfall rates reached over an inch per hour at times for
a few locations. An urban Flash Flood Warning is in effect for those
areas within the County. Otherwise, most areas will continue to
exceed a half of inch per hour. For many areas. There have been
several reports of roadway flooding including in and around Shandon,
Templeton as well as State Route 46 between Atascadero and Harmony.
Moderate to heavy rain will continue over the next few hours.
Rainfall rates of 0.30 to 0.60 inches per hour were common, and are
expected to continue through early this morning.

Isolated thunderstorms are expected as well. Rainfall rates of 0.50
to 0.75 inches are possible near thunderstorms and along and below
south and southwest facing slopes. The rain will cause widespread
ponding of water on area roadways overnight with some flooding of
low lying areas and intersection.Doppler radar indicated heavy rain
due to thunderstorms. This will cause minor flooding in the advisory
area.

Some locations that will experience flooding include...
San Luis Obispo, Paso Robles, Templeton, Morro Bay, Pismo Beach,
Atascadero, Arroyo Grande, Nipomo and Cambria.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.


Lat... Lon 3579 12019 3561 12019 3561 12009 3527 11981
      3526 11967 3518 11967 3508 11947 3490 11947
      3511 12008 3501 12033 3490 12031 3499 12044
      3497 12065 3469 12058 3457 12065 3514 12066
      3522 12088 3543 12089 3566 12130 3580 12135


Kaplan/db


1008 PM PST Wed Jan 16 2019

... High surf advisory remains in effect until 2 PM PST Thursday...
... High surf warning remains in effect from 2 PM Thursday to 9 PM
PST Friday...
... Coastal flood advisory remains in effect from 11 PM Thursday
to 9 PM PST Friday...

* surf... breaking waves will build to 8 to 12 feet through
Thursday morning. Surf will increase rapidly late Thursday
morning, reaching 20 to 25 feet by Friday. The surf will begin
to subside late Friday but high surf condition may persist into
Saturday morning. The highest surf will be on west and northwest
facing beaches.

* Coastal flooding... high tides of 6 to 6.5 feet at 6 am
Thursday and 6.5 to 7 feet at 7 am Friday will coincide with
the building surf. Minor coastal flooding is possible
Thursday, with moderate coastal flooding and significant beach
erosion likely on Friday. In addition, there is a risk of
breaking waves across the Morro Bay Harbor entrance.

* Impacts... there is an increased risk for ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Large
breaking waves can cause injury... wash people off beaches and
rocks... and capsize small boats near shore. Moderate coastal
flooding is possible over low-lying coastal areas including
beaches, beach parking lots and Harbor walkways, and with
vulnerable coastal roadways during the highest surf and tides.

Precautionary/preparedness actions...

A high surf advisory means that high surf will affect beaches in
the advisory area... producing localized beach erosion and
dangerous swimming conditions. Swim near a lifeguard. If caught
in a rip current, relax and float. Don't swim against the
current. If able, swim in a direction following the shoreline. If
unable to escape, face the shore and call or wave for help.

A high surf warning indicates that dangerous... battering waves
will pound the shoreline. This will result in life-threatening
conditions. Swim near a lifeguard. If caught in a rip current,
relax and float. Don't swim against the current. If able, swim in
a direction following the shoreline. If unable to escape, face
the shore and call or wave for help.

A coastal flood advisory indicates that surf and tides will
combine to generate flooding of low areas along the shore.