Alert archive / California / Wind Advisories in 2019

Wind Advisory 13, NWS Medford, OR

March 22, 2019Siskiyou County, California

NWS Medford, OR issued this wind advisory at Mar 22, 2019, 2:22 AM PDT for Siskiyou County, California. It took effect at Mar 22, 2019, 5:00 AM PDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Mar 22, 2019, 2:22 AM PDT (09:22 UTC)
In effect from: Mar 22, 2019, 5:00 AM PDT
Expired: Mar 22, 2019, 5:00 PM PDT
In force: 12 hr
Issued by: NWS Medford, OR

County Siskiyou County, CA

The radar

The Medford radar (KMAX), 56 km from the middle of the area, began a volume at 09:28 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

Medford/Jackson, OR (KMFR), launched 00:00Z, 9.4 hours before the alert went out and 89 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1968 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -60 m²/s²
0-3 km storm-relative helicity: -69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

501 
WWUS76 KMFR 220922
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
222 AM PDT Fri Mar 22 2019

CAZ081-230000-
/O.NEW.KMFR.WI.Y.0013.190322T1200Z-190323T0000Z/
Central Siskiyou County-
Including the city of Weed
222 AM PDT Fri Mar 22 2019

...WIND ADVISORY IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON...

The National Weather Service in Medford has issued a Wind
Advisory...which is in effect until 5 PM PDT this afternoon. 

* Winds...South to southeast 20 to 30 mph with gusts to 50 mph.

* Timing...Winds increase this morning and peak around noon before
  diminishing late this afternoon.

* Locations include...Shasta Valley to include areas from Weed to
  Grenada along Interstate 5. 

* Impacts...Gusty winds will make travel difficult, especially 
  for high profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

1 follow-up statement

733 
WWUS76 KMFR 230003
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
503 PM PDT Fri Mar 22 2019

CAZ081-230115-
/O.EXP.KMFR.WI.Y.0013.000000T0000Z-190323T0000Z/
Central Siskiyou County-
Including the city of Weed
503 PM PDT Fri Mar 22 2019

...WIND ADVISORY HAS EXPIRED...

Winds have begun to diminish and will continue to decrease through
the evening, thus the wind advisory has been allowed to expire.
Drivers are still urged to use caution through the Shasta Valley
for the next couple of hours.

$$

Nearby

Wind Advisories in California, 2019 Every wind advisory in 2019

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.