Alert archive / California / Wind Advisories in 2020

Wind Advisory 4, NWS San Francisco Bay Area, CA

March 14, 2020Monterey County, California

NWS San Francisco Bay Area, CA issued this wind advisory at Mar 14, 2020, 12:56 PM PDT for Monterey County, California. It took effect at Mar 14, 2020, 9:00 PM PDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Mar 14, 2020, 12:56 PM PDT (19:56 UTC)
In effect from
Mar 14, 2020, 9:00 PM PDT
Expired
Mar 15, 2020, 5:00 AM PDT
In force
8 hr
Issued by
NWS San Francisco Bay Area, CA

County Monterey County, CA

The radar

The San Francisco radar (KMUX), 115 km from the middle of the area, began a volume at 19:57 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

Vandenberg AFB, CA (KVBG), launched 12:00Z, 7.9 hours before the alert went out and 183 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, Vandenberg AFB, CA at 12:00Z on 2020-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Vandenberg AFB, CA at 12:00Z on 2020-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -110 square meters per square second.193958Sfc1 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
720 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-110 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

718 
WWUS76 KMTR 141956
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1256 PM PDT Sat Mar 14 2020

CAZ517-530-150600-
/O.NEW.KMTR.WI.Y.0004.200315T0400Z-200315T1200Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Seaside, Monterey, and Marina
1256 PM PDT Sat Mar 14 2020

...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 5 AM PDT
SUNDAY...

* WHAT...South winds 10 to 20 mph with gusts 40 to 50 mph 
  expected. Winds will be strongest along the immediate coast.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...From 9 PM this evening to 5 AM PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/mtr
1 follow-up statement
285 
WWUS76 KMTR 150455
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
955 PM PDT Sat Mar 14 2020

CAZ517-530-151200-
/O.CON.KMTR.WI.Y.0004.000000T0000Z-200315T1200Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Seaside, Monterey, and Marina
955 PM PDT Sat Mar 14 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT SUNDAY...

* WHAT...South winds 10 to 20 mph with gusts 40 to 50 mph 
  expected. Winds will be strongest along the immediate coast.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...From 9 PM this evening to 5 AM PDT Sunday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/mtr

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 13, 9:23 PM PDTSmall Craft AdvisoryMTR6 hr

Nearby

Wind Advisories in California, 2020Every wind advisory in 2020

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.