Alert archive / Oregon / Frost Advisories in 2011

Frost Advisory 14, NWS Medford, OR

April 30, 2011Curry County, Jackson County, Josephine County, Oregon; Siskiyou County, California

NWS Medford, OR issued this frost advisory at Apr 30, 2011, 3:21 AM PDT for Curry County, Jackson County, Josephine County, Oregon; Siskiyou County, California. It took effect at May 1, 2011, 2:00 AM PDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Apr 30, 2011, 3:21 AM PDT (10:21 UTC)
In effect from: May 1, 2011, 2:00 AM PDT
Expired: May 1, 2011, 9:00 AM PDT
In force: 7 hr
Issued by: NWS Medford, OR

Counties Siskiyou County, CA, Curry County, OR, Jackson County, OR, Josephine County, OR

The radar

The Medford radar (KMAX), 47 km from the middle of the area, began a volume at 10:23 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.

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Medford, OR wrote its last area forecast discussion before this frost advisory went out at Apr 29, 8:56 PM PDT, 6 hours 25 minutes earlier.

Area forecast discussion, Apr 29, 8:56 PM PDT, 6 hours 25 minutes before

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Hazardous weather outlook, Apr 29, 2:46 PM PDT, 12 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEDFORD OR
246 PM PDT FRI APR 29 2011

ORZ024-026-301600-
EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY-
246 PM PDT FRI APR 29 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
OREGON.

.DAY ONE...TODAY AND TONIGHT

A FROST ADVISORY HAS BEEN ISSUED EFFECTIVE FROM 3 AM PDT SATURDAY
UNTIL 9 AM PDT SATURDAY MORNING. PLEASE SEE LATEST ADVISORY
MESSAGE FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE FROST ADVISORY CONTINUES UNTIL 9 AM PDT SATURDAY.
OTHERWISE...NO SIGNIFICANT WEATHER IS EXPECTED DURING THIS PERIOD.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 30, 3:21 AM PDT	Freeze Warning	MFR	Siskiyou	30 hr

Nearby

Frost Advisories in Oregon, 2011 Frost Advisories in California, 2011 Every frost advisory in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.