Alert archive / Oregon / Freeze Warnings in 2006

Freeze Warning 21, NWS Medford, OR

October 30, 2006Coos County, Curry County, Douglas County, Oregon

NWS Medford, OR issued this freeze warning at Oct 30, 2006, 2:48 PM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Oct 31, 2006, 12:00 AM PST. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 30, 2006, 2:48 PM PST (22:48 UTC)
In effect from
Oct 31, 2006, 12:00 AM PST
Expired
Oct 31, 2006, 9:00 AM PST
In force
9 hr
Issued by
NWS Medford, OR

Counties Coos County, OR, Curry County, OR, Douglas County, OR

The radar

The Medford radar (KMAX), 135 km from the middle of the area, began a volume at 22:52 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 12:00Z, 10.8 hours before the alert went out and 108 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 12:00Z on 2006-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2006-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
1031 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
56 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 302248
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
248 PM PST MON OCT 30 2006

ORZ021-023-310700-
/O.NEW.KMFR.FZ.W.0021.061031T0800Z-061031T1700Z/
SOUTH CENTRAL OREGON COAST-CENTRAL DOUGLAS COUNTY-
INCLUDING THE CITIES OF...COOS BAY...NORTH BEND...REEDSPORT...
COQUILLE...ROSEBURG...SUTHERLIN...GREEN
248 PM PST MON OCT 30 2006

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST
TUESDAY FOR THE SOUTH CENTRAL OREGON COAST AND CENTRAL DOUGLAS 
COUNTY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST
TUESDAY FOR THE SOUTH CENTRAL OREGON COAST AND CENTRAL DOUGLAS 
COUNTY. 

ANOTHER NIGHT OF GENERALLY CLEAR SKIES AND LIMITED MOISTURE WILL
ALLOW TEMPERATURES TO DROP BELOW FREEZING IN THE UMPQUA AND
COQUILLE BASINS BY TOMORROW MORNING. 

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.TO PREVENT FREEZING AND POSSIBLE BURSTING OF
OUTDOOR WATER PIPES...PIPES SHOULD BE WRAPPED...DRAINED...OR
ALLOWED TO DRIP SLOWLY. THOSE THAT HAVE IN-GROUND SPRINKLER
SYSTEMS SHOULD DRAIN THEIR SYSTEMS...OR COVER ANY ABOVE-GROUND
PIPES TO PROTECT THEM FROM FREEZING.

$$
SVEN
1 follow-up statement
000 
WWUS76 KMFR 310631
NPWMFR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
1031 PM PST MON OCT 30 2006

ORZ021-023-311700-
/O.CON.KMFR.FZ.W.0021.061031T0800Z-061031T1700Z/
SOUTH CENTRAL OREGON COAST-CENTRAL DOUGLAS COUNTY-
INCLUDING THE CITIES OF...COOS BAY...NORTH BEND...REEDSPORT...
COQUILLE...ROSEBURG...SUTHERLIN...GREEN
1031 PM PST MON OCT 30 2006

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST TUESDAY FOR 
THE SOUTH CENTRAL OREGON COAST AND CENTRAL DOUGLAS COUNTY...

ANOTHER NIGHT OF GENERALLY CLEAR SKIES AND LIMITED MOISTURE WILL
ALLOW TEMPERATURES TO DROP BELOW FREEZING IN THE UMPQUA AND
COQUILLE BASINS BY TOMORROW MORNING.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.TO PREVENT FREEZING AND POSSIBLE BURSTING OF
OUTDOOR WATER PIPES...PIPES SHOULD BE WRAPPED...DRAINED...OR
ALLOWED TO DRIP SLOWLY. THOSE THAT HAVE IN-GROUND SPRINKLER
SYSTEMS SHOULD DRAIN THEIR SYSTEMS...OR COVER ANY ABOVE-GROUND
PIPES TO PROTECT THEM FROM FREEZING.

$$
MWJ

Nearby

Freeze Warnings in Oregon, 2006Every freeze warning in 2006

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.