Alert archive / Oregon / Frost Advisories in 2016
Frost Advisory 21, NWS Medford, OR
NWS Medford, OR issued this frost advisory at Dec 30, 2016, 3:22 AM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Dec 31, 2016, 12:00 AM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Dec 30, 2016, 3:22 AM PST (11:22 UTC)
- In effect from
- Dec 31, 2016, 12:00 AM PST
- Expired
- Dec 31, 2016, 8:00 AM PST
- In force
- 8 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 11:24 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, 11.4 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
292 WWUS76 KMFR 301122 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 322 AM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY THROUGH 3 PM TODAY FOR INLAND VALLEYS AND FROST ADVISORY FOR THE COAST TONIGHT... .HIGH PRESSURE WILL CONTINUE TO BRING A STRONG INVERSION THROUGH THIS AFTERNOON. LIGHT WINDS AND LIMITED VERTICAL MIXING UNDER THIS INVERSION WILL CAUSE PARTICULATES TO ACCUMULATE. THESE PARTICULATES COULD DIMINISH AIR QUALITY IN THE INDICATED VALLEY AREAS. A WEAK FRONT MOVING ACROSS THE AREA WILL INCREASE MIXING LATE THIS AFTERNOON. OVERNIGHT EXPECT COLD TEMPERATURES TO DEVELOP WITH FROST POSSIBLE ALONG THE COAST. ORZ021-022-302330- /O.NEW.KMFR.FR.Y.0021.161231T0800Z-161231T1600Z/ SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- INCLUDING THE CITIES OF...NORTH BEND...REEDSPORT...BANDON... PORT ORFORD...BROOKINGS...GOLD BEACH 322 AM PST FRI DEC 30 2016 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST SATURDAY... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST SATURDAY. * TEMPERATURE...33 TO 36. * LOCATIONS INCLUDE...LOCATIONS ALONG THE SOUTHERN OREGON COAST INLCLUDING COOS BAY...CHARLESTON...REEDSPORT...BANDON...PORT ORFORD...GOLD BEACH AND BROOKINGS. * IMPACTS...SENSITIVE VEGETATION MAY BE KILLED IF LEFT UNPROTECTED. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ ORZ024-026-029-030-302300- /O.CON.KMFR.AS.Y.0001.000000T0000Z-161230T2300Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...GRANTS PASS...CAVE JUNCTION...MEDFORD... ASHLAND...ALTAMONT...KLAMATH FALLS...BEATTY...BLY...CHEMULT... CRESCENT...GILCHRIST...SPRAGUE RIVER 322 AM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * AIR QUALITY...LIGHT WINDS AND LIMITED VERTICAL MIXING THROUGH THIS AFTERNOON WILL CAUSE AIRBORNE PARTICULATES TO ACCUMULATE. THESE PARTICULATES COULD DIMINISH AIR QUALITY IN THE INDICATED VALLEY AREAS. * LOCATIONS INCLUDE...THE VALLEYS OF KLAMATH... JACKSON... AND JOSEPHINE COUNTIES... PARTICULARLY... BUT NOT LIMITED TO KLAMATH FALLS... MEDFORD... AND GRANTS PASS. * IMPACTS...DIMINISHED AIR QUALITY COULD NEGATIVELY AFFECT HEALTH... ESPECIALLY FOR SENSITIVE GROUPS. PLEASE SEE THE OREGON DEPARTMENT OF AIR QUALITY'S WEB SITE AT HTTP://WWW.DEQ.STATE.US/AQI FOR DETAILED AIR QUALITY INFORMATION AND THRESHOLDS. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIRMASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. && $$ CC
3 follow-up statements
104 WWUS76 KMFR 301715 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 915 AM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY THROUGH 3 PM TODAY FOR INLAND VALLEYS AND FROST ADVISORY FOR THE COAST TONIGHT... .HIGH PRESSURE WILL CONTINUE TO BRING A STRONG INVERSION THROUGH THIS AFTERNOON. LIGHT WINDS AND LIMITED VERTICAL MIXING UNDER THIS INVERSION WILL CAUSE PARTICULATES TO ACCUMULATE. THESE PARTICULATES COULD DIMINISH AIR QUALITY IN THE INDICATED VALLEYS. A WEAK FRONT MOVING THROUGH WILL INCREASE MIXING LATE THIS AFTERNOON. OVERNIGHT EXPECT COLD TEMPERATURES TO DEVELOP WITH FROST POSSIBLE ALONG THE COAST. ORZ021-022-310000- /O.CON.KMFR.FR.Y.0021.161231T0800Z-161231T1600Z/ SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- INCLUDING THE CITIES OF...NORTH BEND...REEDSPORT...BANDON... PORT ORFORD...BROOKINGS...GOLD BEACH 915 AM PST FRI DEC 30 2016 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST SATURDAY... * TEMPERATURE...33 TO 36. * LOCATIONS INCLUDE...LOCATIONS ALONG THE SOUTHERN OREGON COAST INCLUDING COOS BAY...CHARLESTON...REEDSPORT...BANDON...PORT ORFORD...GOLD BEACH AND BROOKINGS. * IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNCOVERED. && $$ ORZ029-030-302300- /O.CON.KMFR.AS.Y.0001.000000T0000Z-161230T2300Z/ KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- INCLUDING THE CITIES OF...ALTAMONT...KLAMATH FALLS...BEATTY... BLY...CHEMULT...CRESCENT...GILCHRIST...SPRAGUE RIVER 915 AM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * AIR QUALITY...LIGHT WINDS AND LIMITED VERTICAL MIXING THROUGH THIS AFTERNOON WILL CONTINUE TO CAUSE AIRBORNE PARTICULATES TO ACCUMULATE. THESE PARTICULATES COULD DIMINISH AIR QUALITY IN THE INDICATED VALLEY AREAS. * LOCATIONS INCLUDE...THE VALLEYS OF KLAMATH COUNTY... PARTICULARLY... BUT NOT LIMITED TO KLAMATH FALLS. * IMPACTS...DIMINISHED AIR QUALITY COULD NEGATIVELY AFFECT HEALTH... ESPECIALLY FOR THOSE WITH RESPIRATORY SENSITIVITIES. PLEASE SEE THE OREGON DEPARTMENT OF AIR QUALITY'S WEB SITE AT HTTP://WWW.DEQ.STATE.US/AQI FOR DETAILED AIR QUALITY INFORMATION AND THRESHOLDS. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIRMASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. && $$ ORZ024-026-302300- /O.CON.KMFR.AS.Y.0001.000000T0000Z-161230T2300Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- INCLUDING THE CITIES OF...GRANTS PASS...CAVE JUNCTION...MEDFORD... ASHLAND 915 AM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * AIR QUALITY...LIGHT WINDS AND LIMITED VERTICAL MIXING THROUGH THIS AFTERNOON WILL CONTINUE TO CAUSE AIRBORNE PARTICULATES TO ACCUMULATE. THESE PARTICULATES COULD DIMINISH AIR QUALITY IN THE INDICATED VALLEY AREAS. * LOCATIONS INCLUDE...THE VALLEYS OF JACKSON AND JOSEPHINE COUNTIES... PARTICULARLY... BUT NOT LIMITED TO MEDFORD AND GRANTS PASS. * IMPACTS...DIMINISHED AIR QUALITY COULD NEGATIVELY AFFECT HEALTH... ESPECIALLY FOR THOSE WITH RESPIRATORY SENSITIVITIES. PLEASE SEE THE OREGON DEPARTMENT OF AIR QUALITY'S WEB SITE AT HTTP://WWW.DEQ.STATE.US/AQI FOR DETAILED AIR QUALITY INFORMATION AND THRESHOLDS. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIRMASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. && $$ BTL
886 WWUS76 KMFR 302127 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 127 PM PST FRI DEC 30 2016 ORZ024-026-029-030-302230- /O.CAN.KMFR.AS.Y.0001.000000T0000Z-161230T2300Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- 127 PM PST FRI DEC 30 2016 ...AIR STAGNATION ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE AIR STAGNATION ADVISORY. $$ ORZ021-022-311200- /O.CON.KMFR.FR.Y.0021.161231T0800Z-161231T1600Z/ SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- INCLUDING THE CITIES OF...NORTH BEND...REEDSPORT...BANDON... PORT ORFORD...BROOKINGS...GOLD BEACH 127 PM PST FRI DEC 30 2016 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST SATURDAY... * TEMPERATURES...33 TO 37. * LOCATIONS INCLUDE...LOCATIONS ALONG THE SOUTHERN OREGON COAST INCLUDING COOS BAY...CHARLESTON...REEDSPORT...BANDON...PORT ORFORD...GOLD BEACH AND BROOKINGS. * IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNCOVERED. && $$ STOCKTON
381 WWUS76 KMFR 311131 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 331 AM PST SAT DEC 31 2016 ORZ021-022-311600- /O.CON.KMFR.FR.Y.0021.000000T0000Z-161231T1600Z/ SOUTH CENTRAL OREGON COAST-CURRY COUNTY COAST- INCLUDING THE CITIES OF...NORTH BEND...REEDSPORT...BANDON... PORT ORFORD...BROOKINGS...GOLD BEACH 331 AM PST SAT DEC 31 2016 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... * TEMPERATURES...33 TO 37. * LOCATIONS INCLUDE...LOCATIONS ALONG THE SOUTHERN OREGON COAST INCLUDING COOS BAY...CHARLESTON...REEDSPORT...BANDON...PORT ORFORD...GOLD BEACH AND BROOKINGS. * IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED OR KILLED IF LEFT UNPROTECTED. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNCOVERED. && $$ CC
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 30, 2:36 AM PST | Gale Warning | MFR | 28 hr | |
| Dec 30, 2:36 AM PST | Small Craft Advisory | MFR | 37 hr | |
| Dec 30, 2:36 AM PST | Hazardous Seas Warning | MFR | 17 hr |
Nearby
Frost Advisories in Oregon, 2016Every frost advisory in 2016
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.