Alert archive / Oregon / Frost Advisories in 2011
Frost Advisory 35, NWS Medford, OR
NWS Medford, OR issued this frost advisory at Oct 31, 2011, 3:30 AM PDT for Coos County, Douglas County, Oregon. It took effect at Nov 1, 2011, 3:00 AM PDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 31, 2011, 3:30 AM PDT (10:30 UTC)
- In effect from
- Nov 1, 2011, 3:00 AM PDT
- Expired
- Nov 1, 2011, 9:00 AM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
Counties Coos County, OR, Douglas County, OR
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 10.5 hours before the alert went out and 118 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1345 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
901 WWUS76 KMFR 311030 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 330 AM PDT MON OCT 31 2011 ORZ023-311830- /O.NEW.KMFR.FZ.W.0023.111101T1000Z-111101T1600Z/ /O.NEW.KMFR.FR.Y.0035.111101T1000Z-111101T1600Z/ /O.NEW.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 330 AM PDT MON OCT 31 2011 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FROST ADVISORY HAS ALSO BEEN ISSUED. THIS FROST ADVISORY IS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. IN ADDITION...A FREEZE WATCH HAS BEEN ISSUED. THIS FREEZE WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...TEMPERATURES WILL FALL INTO THE LOWER 30S IN THE LOWER UMPQUA BASIN AND MID 30S AROUND ROSEBURG LATE TONIGHT INTO TUESDAY MORNING. TEMPERATURES COULD DIP IN TO THE UPPER 20S TO LOWER 30S LATE TUESDAY NIGHT INTO WEDNESDAY MORNING. * LOCATIONS INCLUDE: ROSEBURG...SUTHERLIN...GREEN. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ ORZ021-311830- /O.NEW.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- 330 AM PDT MON OCT 31 2011 ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...TEMPERATURES COULD DROP INTO THE LOWER 30S LATE TUESDAY NIGHT INTO WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: MYRTLE POINT. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PETRUCELLI
5 follow-up statements
887 WWUS76 KMFR 311122 CCA NPWMFR URGENT - WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE MEDFORD OR 413 AM PDT MON OCT 31 2011 ORZ023-311915- /O.COR.KMFR.FZ.W.0023.111101T1000Z-111101T1600Z/ /O.COR.KMFR.FR.Y.0035.111101T1000Z-111101T1600Z/ /O.COR.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 413 AM PDT MON OCT 31 2011 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FROST ADVISORY HAS ALSO BEEN ISSUED. THIS FROST ADVISORY IS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. IN ADDITION...A FREEZE WATCH HAS BEEN ISSUED. THIS FREEZE WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...LOWS WILL FALL INTO THE LOWER TO MIDDLE 30S ACROSS THE UMPQUA BASIN TONIGHT. THE COLDER TEMPERATURES WILL BE ACROSS FAR SOUTH AND SOUTHEAST PORTIONS OF THE COUNTY....OR GENERALLY SOUTH AND EAST OF CANYONVILLE. TEMPERATURES WILL LIKELY BE SEVERAL DEGREES COLDER LATE TUESDAY NIGHT INTO WEDNESDAY MORNING...WITH LOWS IN THE UPPER 20S TO LOWER 30S. * LOCATIONS IN THE FREEZE WARNING INCLUDE: GLENDALE...AZALEA... AND TILLER. * LOCATIONS IN THE FROST ADVISORY INCLUDE: CANYONVILLE...MYRTLE CREEK...ROSEBURG...SUTHERLIN...AND CAMAS VALLEY. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ ORZ021-311915- /O.COR.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- 413 AM PDT MON OCT 31 2011 ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...TEMPERATURES COULD DROP INTO THE LOWER 30S LATE TUESDAY NIGHT INTO WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: MYRTLE POINT. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ PETRUCELLI/STAVISH
937 WWUS76 KMFR 311917 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 1217 PM PDT MON OCT 31 2011 ORZ023-010345- /O.CON.KMFR.FZ.W.0023.111101T1000Z-111101T1600Z/ /O.CON.KMFR.FR.Y.0035.111101T1000Z-111101T1600Z/ /O.CON.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 1217 PM PDT MON OCT 31 2011 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... A FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...LOWS WILL FALL INTO THE LOWER TO MIDDLE 30S ACROSS THE UMPQUA BASIN TONIGHT. THE COLDER TEMPERATURES WILL BE ACROSS FAR SOUTH AND SOUTHEAST PORTIONS OF DOUGLAS COUNTY....OR GENERALLY SOUTH AND EAST OF CANYONVILLE. TEMPERATURES WILL LIKELY BE SEVERAL DEGREES COLDER LATE TUESDAY NIGHT INTO WEDNESDAY MORNING...WITH LOWS IN THE UPPER 20S TO LOWER 30S. * LOCATIONS IN THE FREEZE WARNING INCLUDE: GLENDALE...AZALEA... AND TILLER. * LOCATIONS IN THE FROST ADVISORY INCLUDE: CANYONVILLE...MYRTLE CREEK...ROSEBURG...SUTHERLIN...AND CAMAS VALLEY. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ ORZ021-010345- /O.CON.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- 1217 PM PDT MON OCT 31 2011 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... A FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...TEMPERATURES COULD DROP INTO THE LOWER 30S LATE TUESDAY NIGHT INTO WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: MYRTLE POINT. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
387 WWUS76 KMFR 312103 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 203 PM PDT MON OCT 31 2011 ORZ023-010945- /O.CON.KMFR.FZ.W.0023.111101T1000Z-111101T1600Z/ /O.CON.KMFR.FR.Y.0035.111101T1000Z-111101T1600Z/ /O.CON.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 203 PM PDT MON OCT 31 2011 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... A FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY. A FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...LOWS WILL FALL INTO THE LOWER TO MIDDLE 30S ACROSS THE UMPQUA BASIN TONIGHT. THE COLDER TEMPERATURES WILL BE ACROSS FAR SOUTH AND SOUTHEAST PORTIONS OF DOUGLAS COUNTY OR GENERALLY SOUTH AND EAST OF CANYONVILLE. TEMPERATURES WILL LIKELY BE SEVERAL DEGREES COLDER LATE TUESDAY NIGHT INTO WEDNESDAY MORNING...WITH LOWS IN THE UPPER 20S TO LOWER 30S. * LOCATIONS IN THE FREEZE WARNING INCLUDE: GLENDALE...AZALEA... AND TILLER. * LOCATIONS IN THE FROST ADVISORY INCLUDE: CANYONVILLE...MYRTLE CREEK...ROSEBURG...SUTHERLIN...AND CAMAS VALLEY. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ ORZ021-010945- /O.CON.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- 203 PM PDT MON OCT 31 2011 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... A FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. * TEMPERATURES...TEMPERATURES COULD DROP INTO THE LOWER 30S LATE TUESDAY NIGHT INTO WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: MYRTLE POINT...POWERS...AND INLAND VALLEYS. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
470 WWUS76 KMFR 011000 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 300 AM PDT TUE NOV 1 2011 ORZ023-011600- /O.UPG.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ /O.NEW.KMFR.FR.Y.0036.111102T0900Z-111102T1600Z/ /O.NEW.KMFR.FZ.W.0024.111102T0900Z-111102T1600Z/ /O.CON.KMFR.FZ.W.0023.000000T0000Z-111101T1600Z/ /O.CON.KMFR.FR.Y.0035.000000T0000Z-111101T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 300 AM PDT TUE NOV 1 2011 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. A FROST ADVISORY HAS ALSO BEEN ISSUED. THIS FROST ADVISORY IS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING. A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING. * TEMPERATURES...LOWS WILL BE IN THE LOWER TO MIDDLE 30S ACROSS THE UMPQUA BASIN THIS MORNING AND AGAIN WEDNESDAY MORNING. THE COLDEST TEMPERATURES WILL BE IN THE VALLEYS WHILE THE RIDGES WILL BE RELATIVELY WARMER. * LOCATIONS IN THE FREEZE WARNING INCLUDE: ROSEBURG...WINSTON... MYRTLE CREEK...YONCALLA. * LOCATIONS IN THE FROST ADVISORY INCLUDE: SUTHERLIN...DRAIN... ELKTON...OAKLAND...TRI-CITY...RIDDLE...CANYONVILLE...GLENDALE. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ ORZ021-011600- /O.UPG.KMFR.FZ.A.0019.111102T0900Z-111102T1600Z/ /O.NEW.KMFR.FR.Y.0036.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- INCLUDING THE CITIES OF...NORTH BEND...COQUILLE 300 AM PDT TUE NOV 1 2011 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. * TEMPERATURES...TEMPERATURES WILL DROP INTO THE MIDDLE TO UPPER 30S WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: NORTH BEND...COQUILLE...MYRTLE POINT...POWERS. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ STOCKTON
771 WWUS76 KMFR 011555 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 855 AM PDT TUE NOV 1 2011 ORZ023-020000- /O.EXP.KMFR.FZ.W.0023.000000T0000Z-111101T1600Z/ /O.EXP.KMFR.FR.Y.0035.000000T0000Z-111101T1600Z/ /O.CON.KMFR.FZ.W.0024.111102T0900Z-111102T1600Z/ /O.CON.KMFR.FR.Y.0036.111102T0900Z-111102T1600Z/ CENTRAL DOUGLAS COUNTY- INCLUDING THE CITIES OF...ROSEBURG...SUTHERLIN...GREEN 855 AM PDT TUE NOV 1 2011 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... ...FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING... ...FROST ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING... THE FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING. THE FROST ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING. A FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. A FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. * TEMPERATURES...LOWS WILL BE IN THE LOWER 30S ACROSS THE UMPQUA BASIN AGAIN WEDNESDAY MORNING. THE COLDEST TEMPERATURES WILL BE IN THE VALLEYS WHILE THE RIDGES WILL BE RELATIVELY WARMER. * LOCATIONS IN THE FREEZE WARNING INCLUDE: ROSEBURG...WINSTON... MYRTLE CREEK...YONCALLA. * LOCATIONS IN THE FROST ADVISORY INCLUDE: SUTHERLIN...DRAIN... ELKTON...OAKLAND...TRI-CITY...RIDDLE...CANYONVILLE... GLENDALE. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ ORZ021-020000- /O.CON.KMFR.FR.Y.0036.111102T0900Z-111102T1600Z/ SOUTH CENTRAL OREGON COAST- INCLUDING THE CITIES OF...NORTH BEND...COQUILLE 855 AM PDT TUE NOV 1 2011 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT WEDNESDAY. * TEMPERATURES...TEMPERATURES WILL DROP INTO THE MIDDLE TO UPPER 30S WEDNESDAY MORNING IN THE VALLEYS. * LOCATIONS INCLUDE: NORTH BEND...COQUILLE. * IMPACTS...SENSITIVE CROPS AND OTHER OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ MSO
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 Oct 31, 3:21 AM PDT, 9 minutes earlier.
Area forecast discussion, Oct 31, 3:21 AM PDT, 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
321 AM PDT MON OCT 31 2011
.DISCUSSION...A WEAK COLD FRONT WILL MOVE THROUGH THE AREA THIS
MORNING. UPSLOPE NORTH TO NORTHWEST FLOW IS BEHIND THE FRONT
RESULTING IN LOW CLOUDS AND PATCHY AREAS OF DRIZZLE MAINLY ALONG THE
WEST FACING SLOPES OF THE CASCADES AND NORTH SLOPES OF THE SISKIYOUS
FOR A FEW HOURS EARLY THIS MORNING. COOLER AND DRIER AIR MASS MOVES
OVERHEAD THIS AFTERNOON WITH OFFSHORE FLOW DEVELOPING RESULTING IN
DECREASING CLOUD COVER. HIGH PRESSURE BUILDS EAST OF THE CASCADES
TONIGHT WITH MOSTLY CLEAR SKIES OVER MOST AREAS. TEMPERATURES WILL
COOL DOWN QUICKLY IN THE EVENING...SO DRESS THE KIDS WARM FOR THE
TRICK AND TREATING.
DRY WEATHER CONTINUES TUESDAY AND MOST OF WEDNESDAY WITH COLD
TEMPERATURES IN THE MORNING AND COOL AFTERNOON. TEMPERATURES TUESDAY
NIGHT INTO EARLY WEDNESDAY ARE LIKELY TO DROP NEAR FREEZING IN THE
UMPQUA BASIN AND IN A FEW VALLEY LOCATIONS IN COOS COUNTY.SKIES
REMAIN MOSTLY CLEAR THROUGH WEDNESDAY MORNING...THEN HIGH AND MID
CLOUDS INCREASE FROM WEST TO EAST IN THE AFTERNOON IN ADVANCE OF A
STRONG COLD FRONT.
THE MODELS ARE IN FAIRLY GOOD AGREEMENT IN BRINGING A STRONG COLD
FRONT TO THE OREGON COAST LATE WEDNESDAY AFTERNOON. THE LATEST GFS
AND
NAM HAVE SLOWED THE TIMING OF THE FRONT UNTIL WEDNESDAY EVENING. THE
EC AND CANADIAN REMAIN SLIGHTLY FASTER. SO DECIDED TO PLAY THE
MIDDLE GROUND AND ADJUST POPS DOWN FOR THE INLAND AREAS...BUT KEPT
THEM ABOUT THE SAME FOR THE COAST...SPECIFICALLY NORTH OF CAPE
BLANCO.
BIG CHANGES ARE AHEAD STARTING WEDNESDAY NIGHT. THE FRONT MOVES
INLAND WEDNESDAY EVENING THROUGH NIGHT AND IS VERY LIKELY TO BRING
OUR FIRST SIGNIFICANT PRECIPITATION EVENT TO THE COAST RANGE AND
CASCADES SINCE EARLY OCTOBER. A COOL AIR MASS FOLLOWS RESULTING IN
SNOW LEVELS LOWERING AROUND 4000 TO 4500 FEET IN OREGON AND 5000 TO
5500 FEET IN NORTHERN CAL. SO IT'S A GOOD BET THE CASCADES AND
NORTHERN LAKE AND KLAMATH COUNTY SEE RAIN CHANGING OVER TO WET SNOW.
THE SUMMITS ALONG HIGHWAY 140 AND STATE HIGHWAY 66 COULD SEE
ACCUMULATING SNOW BY DAYBREAK THURSDAY. SO BE PREPARED FOR
WINTER TRAVEL IF TRAVELING OVER THESE ROADS.
MEANWHILE...WINDS WILL INCREASE ALONG AND EAST OF THE CASCADES
WEDNESDAY NIGHT INTO THURSDAY MORNING WITH 700 MB WINDS PROJECTED TO
BE BETWEEN 40 AND 50 KTS. NOT OUT OF THE QUESTION THE HIGHER TERRAIN
COULD GET CLOSE TO HIGH WIND CRITERIA.
DEEP UPPER TROUGH REMAINS OVER THE AREA THURSDAY AND FRIDAY WITH
RAIN AND SNOW SHOWERS EXPECTED TO PERSIST. SNOW LEVELS THURSDAY WILL
BE AROUND 3500 FEET...3000 FEET THURSDAY NIGHT AND 3500 FEET
FRIDAY.
THE DEEP UPPER TROUGH SHIFTS EAST OF THE CWA SATURDAY AND WE'LL GET
A BREAK IN THE WEATHER...THEN ANOTHER UPPER TROUGH MOVES INTO THE
REGION SATURDAY NIGHT BRINGING ANOTHER ROUND OF PRECIPITATION.
&&
.AVIATION...A COLD FRONT WILL PROGRESS OVER THE EAST SIDE
THIS MORNING. IFR CEILINGS WILL LIKELY DROPPING TO IFR AND LIFR
EARLY THIS MORNING BEHIND THE FRONT. DEW POINTS IN THE 50S SUPPORT
AT LEAST A BRIEF PERIOD OF WIDESPREAD IFR CEILINGS OVER THE WEST
SIDE MONDAY MORNING. ON THE EAST SIDE...VFR CONDITIONS WILL
CONTINUE...BUT THERE IS A CHANCE FOR LIFR CONDITIONS TO DEVELOP FOR
A FEW HOURS WITH PATCHY FREEZING FOG AFFECTING KLMT. MOUNTAIN
OBSCURATION WILL IMPACT TERRAIN FROM THE CASCADES WESTWARD THROUGH
MID MORNING. MOUNTAIN OBSCURATION SHOULD DIMINISH EVERYWHERE BY
THIS AFTERNOON WITH A MUCH DRIER AIR MASS FILTERING IN.
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...FROST ADVISORY FROM 3 AM TO 9 AM PDT TUESDAY FOR ORZ023.
FREEZE WARNING FROM 3 AM TO 9 AM PDT TUESDAY FOR ORZ023.
FREEZE WATCH FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING
FOR ORZ023.
CA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 2 PM THIS AFTERNOON TO 11 AM
PDT TUESDAY FOR PZZ350-356-370.
HAZARDOUS SEAS WARNING FROM 2 PM THIS AFTERNOON TO 11 AM PDT
TUESDAY FOR PZZ350-356-370.
SMALL CRAFT ADVISORY FOR WINDS UNTIL 2 PM PDT THIS AFTERNOON FOR
PZZ376.
HAZARDOUS SEAS WARNING FROM 2 PM THIS AFTERNOON TO 11 PM PDT
TUESDAY FOR PZZ376.
GALE WARNING FROM 2 PM THIS AFTERNOON TO 11 AM PDT TUESDAY FOR
PZZ376.
SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 2 PM PDT THIS
AFTERNOON FOR PZZ376.
PETRUCELLIThe office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 3:30 AM PDT | Freeze Watch | MFR | Coos, Curry, Douglas | 24 hr |
| Oct 31, 3:30 AM PDT | Freeze Warning | MFR | Coos, Douglas | 30 hr |
Nearby
Frost Advisories in Oregon, 2011Every 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; the sounding from the Mesonet's radiosonde archive.