Alert archive / Oregon / Wind Advisories in 2009

Wind Advisory 13, NWS Medford, OR

October 14, 2009Lake County, Oregon; Modoc County, California

NWS Medford, OR issued this wind advisory at Oct 14, 2009, 12:31 AM PDT for Lake County, Oregon; Modoc County, California. It took effect at Oct 14, 2009, 2:00 AM PDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Oct 14, 2009, 12:31 AM PDT (07:31 UTC)
In effect from
Oct 14, 2009, 2:00 AM PDT
Expired
Oct 14, 2009, 1:23 PM PDT
In force
11 hr
Issued by
NWS Medford, OR

Counties Modoc County, CA, Lake County, OR

The radar

The Medford radar (KMAX), 179 km from the middle of the area, began a volume at 07:33 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, 7.5 hours before the alert went out and 186 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, Medford/Jackson, OR at 00:00Z on 2009-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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, Medford/Jackson, OR at 00:00Z on 2009-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.1939587897Sfc1 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
28 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
451 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS76 KMFR 140731
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
1231 AM PDT WED OCT 14 2009

...STRONG SOUTH THROUGH WEST WINDS TODAY...

CAZ085-ORZ031-150000-
/O.NEW.KMFR.WI.Y.0013.091014T0900Z-091015T0000Z/
MODOC COUNTY-CENTRAL AND EASTERN LAKE COUNTY-
INCLUDING THE CITIES OF...ALTURAS...LAKEVIEW
1231 AM PDT WED OCT 14 2009

...WIND ADVISORY IN EFFECT FROM 2 AM PDT THIS MORNING THROUGH 5 
PM PDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 2 AM PDT THIS MORNING THROUGH 5
PM PDT THIS AFTERNOON.

THE COLD CORE OF THE STRONG LOW PRESSURE SYSTEM OFFSHORE WILL MOVE
INLAND ACROSS THE CASCADES TODAY. AS THIS OCCURS...THE JET STREAM
WILL LIFT NORTHWARD INTO THE AREA. THIS WILL CAUSE SOUTH WINDS TO
TURN SOUTHWEST AND THEN WEST. 

WINDS IN THE VALLEYS WILL BE 15 TO 30 MPH WITH GUSTS 30 TO 45 MPH
TODAY. ACROSS THE MOUNTAINS AND THROUGH MOUNTAIN PASSES WINDS ARE
EXPECTED TO INCREASE THIS MORNING TO AROUND 35 MPH WITH GUSTS 50
MPH. LOCALLY HIGHER WINDS UP 50 MPH WITH GUSTS TO 70 MPH ARE
POSSIBLE AT THE MORE TYPICAL WINDY SPOTS. THESE INCLUDE SUMMER
RIM AND CEDAR PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED WITH
GUSTS 45 TO 50 MPH. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&

$$

LUTZ
1 follow-up statement
000 
WWUS76 KMFR 142023
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
123 PM PDT WED OCT 14 2009



CAZ085-ORZ031-142130-
/O.CAN.KMFR.WI.Y.0013.000000T0000Z-091015T0000Z/
MODOC COUNTY-CENTRAL AND EASTERN LAKE COUNTY-
INCLUDING THE CITIES OF...ALTURAS...LAKEVIEW
123 PM PDT WED OCT 14 2009

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE WIND
ADVISORY. 

SOUTHWEST WINDS 15 TO 25 MPH WITH OCCASIONAL GUSTS TO 35 MPH WILL
CONTINUE FOR THE REMAINDER OF THE AFTERNOON THEN DECREASE THIS
EVENING. SOME ISOLATED HIGHER ELEVATION LOCATIONS IN LAKE COUNTY
MAY STILL GUST AS HIGH AS 45 MPH FOR THE NEXT FEW HOURS.



$$

RH

Nearby

Wind Advisories in Oregon, 2009Wind Advisories in California, 2009Every wind advisory in 2009

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.