Alert archive / Oregon / Frost Advisories in 2007
Frost Advisory 21, NWS Medford, OR
NWS Medford, OR issued this frost advisory at Oct 5, 2007, 3:34 AM PDT for Curry County, Jackson County, Josephine County, Oregon; Siskiyou County, California. It took effect at Oct 5, 2007, 11:00 PM PDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Oct 5, 2007, 3:34 AM PDT (10:34 UTC)
- In effect from
- Oct 5, 2007, 11:00 PM PDT
- Expired
- Oct 6, 2007, 8:50 AM PDT
- In force
- 10 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 10:35 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, 10.6 hours before the alert went out and 42 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.
- Mixed-layer CAPE
- 10 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1248 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS76 KMFR 051034 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 334 AM PDT FRI OCT 5 2007 CAZ080-ORZ024-026-052245- /O.NEW.KMFR.FR.Y.0021.071006T0600Z-071006T1600Z/ WESTERN SISKIYOU COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- JACKSON COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW... GRANTS PASS...MEDFORD...ASHLAND 334 AM PDT FRI OCT 5 2007 ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SATURDAY. A COOL AIR MASS OVER THE AREA COMBINED WITH PARTIAL CLEARING TONIGHT WILL ALLOW AREAS OF FROST TO DEVELOP OVER SOUTHWEST OREGON AND NORTHERN CALIFORNIA. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. $$ STOCKTON
3 follow-up statements
000 WWUS76 KMFR 052040 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 140 PM PDT FRI OCT 5 2007 CAZ080-ORZ024-026-060645- /O.CON.KMFR.FR.Y.0021.071006T0600Z-071006T1600Z/ WESTERN SISKIYOU COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- JACKSON COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW... GRANTS PASS...MEDFORD...ASHLAND 140 PM PDT FRI OCT 5 2007 ...FROST ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SATURDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SATURDAY. A COOL AIR MASS OVER THE AREA COMBINED WITH PARTIAL CLEARING TONIGHT WILL ALLOW AREAS OF FROST TO DEVELOP OVER SOUTHWEST OREGON AND NORTHERN CALIFORNIA. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. $$ FB
000 WWUS76 KMFR 061036 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 336 AM PDT SAT OCT 6 2007 ORZ024-026-062245- /O.NEW.KMFR.FR.Y.0022.071007T0600Z-071007T1600Z/ /O.CON.KMFR.FR.Y.0021.000000T0000Z-071006T1600Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- INCLUDING THE CITIES OF...GRANTS PASS...MEDFORD...ASHLAND 336 AM PDT SAT OCT 6 2007 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SUNDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SUNDAY. A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING. A COOL AIR MASS OVER THE AREA COMBINED WITH PARTIAL CLEARING TONIGHT AND SATURDAY NIGHT WILL ALLOW AREAS OF FROST TO DEVELOP OVER SOUTHWEST OREGON. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. $$ CAZ080-061600- /O.CON.KMFR.FR.Y.0021.000000T0000Z-071006T1600Z/ WESTERN SISKIYOU COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW 336 AM PDT SAT OCT 6 2007 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING. A COOL AIR MASS OVER THE AREA COMBINED WITH PARTIAL CLEARING TONIGHT WILL ALLOW AREAS OF FROST TO DEVELOP OVER SOUTHWEST OREGON AND NORTHERN CALIFORNIA. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. $$ STOCKTON
000 WWUS76 KMFR 061550 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 850 AM PDT SAT OCT 6 2007 ORZ024-026-062100- /O.CAN.KMFR.FR.Y.0021.000000T0000Z-071006T1600Z/ /O.CON.KMFR.FR.Y.0022.071007T0600Z-071007T1600Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- INCLUDING THE CITIES OF...GRANTS PASS...MEDFORD...ASHLAND 850 AM PDT SAT OCT 6 2007 ...FROST ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SUNDAY... ...FROST ADVISORY IS CANCELLED FOR THIS MORNING... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE FROST ADVISORY. A FROST ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT SUNDAY. CLOUDY SKIES HAVE KEPT OVERNIGHT TEMPERATURES WARMER THAN EXPECTED. AS A RESULT THE FROST ADVISORY THAT WAS IN EFFECT THROUGH THIS MORNING HAS BEEN CANCELLED. HOWEVER SOME CLEARING IS EXPECTED TONIGHT AND FROST IS STILL POSSIBLE FROM LATE TONIGHT THROUGH EARLY SUNDAY MORNING. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. $$ CAZ080-061700- /O.CAN.KMFR.FR.Y.0021.000000T0000Z-071006T1600Z/ WESTERN SISKIYOU COUNTY- INCLUDING THE CITIES OF...ETNA...FORT JONES...GREENVIEW 850 AM PDT SAT OCT 6 2007 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE FROST ADVISORY. CLOUDY SKIES HAVE KEPT OVERNIGHT TEMPERATURES WARMER THAN EXPECTED. AS A RESULT THE FROST ADVISORY THAT WAS IN EFFECT THROUGH THIS MORNING HAS BEEN CANCELLED. $$ FB
Nearby
Frost Advisories in Oregon, 2007Frost Advisories in California, 2007Every frost advisory in 2007
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.