Alert archive / California / Frost Advisories in 2017
Frost Advisory 1, NWS Eureka, CA
NWS Eureka, CA issued this frost advisory at Feb 27, 2017, 2:01 PM PST for Mendocino County, California. It took effect at Feb 28, 2017, 3:00 AM PST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Feb 27, 2017, 2:01 PM PST (22:01 UTC)
- In effect from
- Feb 28, 2017, 3:00 AM PST
- Expired
- Feb 28, 2017, 8:00 AM PST
- In force
- 5 hr
- Issued by
- NWS Eureka, CA
County Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 22:01 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
Oakland, CA (KOAK), launched 12:00Z, 10.0 hours before the alert went out and 218 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
113 WWUS76 KEKA 272201 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 201 PM PST Mon Feb 27 2017 CAZ110-111-113-281315- /O.NEW.KEKA.FZ.W.0001.170228T1100Z-170228T1600Z/ /O.NEW.KEKA.FZ.A.0001.170301T0900Z-170301T1600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior- 201 PM PST Mon Feb 27 2017 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 8 AM PST TUESDAY... ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... The National Weather Service in Eureka has issued a Freeze Warning...which is in effect from 3 AM to 8 AM PST Tuesday. a Freeze Watch has also been issued. This Freeze Watch is in effect from late Tuesday night through Wednesday morning. * LOW TEMPERATURES...Upper 20S to lower 30S. * LOCATIONS INCLUDE...Legget...Laytonville...Willits...Covelo...Potter valley and Ukiah. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map 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 Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. && $$ CAZ112-281315- /O.NEW.KEKA.FR.Y.0001.170228T1100Z-170228T1600Z/ /O.NEW.KEKA.FZ.A.0001.170301T0900Z-170301T1600Z/ Southwestern Mendocino Interior- 201 PM PST Mon Feb 27 2017 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM PST TUESDAY... ...FREEZE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING... The National Weather Service in Eureka has issued a Frost Advisory...which is in effect from 3 AM to 8 AM PST Tuesday. a Freeze Watch has also been issued. This Freeze Watch is in effect from late Tuesday night through Wednesday morning. * LOW TEMPERATURES...Mid 30s tonight. Upper 20S to lower 30S tomorrow night. * LOCATIONS INCLUDE...Boonville. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. && $$ CAZ109-281315- /O.NEW.KEKA.FR.Y.0001.170228T1100Z-170228T1600Z/ Mendocino Coast- 201 PM PST Mon Feb 27 2017 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM PST TUESDAY... The National Weather Service in Eureka has issued a Frost Advisory...which is in effect from 3 AM to 8 AM PST Tuesday. * LOW TEMPERATURES...Mid 30s tonight. * LOCATIONS INCLUDE...Fort Bragg. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. && $$
1 follow-up statement
957 WWUS76 KEKA 281011 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 211 AM PST Tue Feb 28 2017 CAZ110-111-113-010000- /O.UPG.KEKA.FZ.A.0001.170301T0900Z-170301T1600Z/ /O.NEW.KEKA.FZ.W.0002.170301T0900Z-170301T1600Z/ /O.CON.KEKA.FZ.W.0001.170228T1100Z-170228T1600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior- 211 AM PST Tue Feb 28 2017 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PST WEDNESDAY... The National Weather Service in Eureka has issued a Freeze Warning...which is in effect from 1 AM to 8 AM PST Wednesday. The Freeze Watch is no longer in effect. * LOW TEMPERATURES...upper 20s to lower 30s. * LOCATIONS INCLUDE...Leggett...Laytonville...Willits... Covelo... Ukiah...Hopland...Potter Valley. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ CAZ112-010000- /O.UPG.KEKA.FZ.A.0001.170301T0900Z-170301T1600Z/ /O.NEW.KEKA.FZ.W.0002.170301T0900Z-170301T1600Z/ /O.CON.KEKA.FR.Y.0001.170228T1100Z-170228T1600Z/ Southwestern Mendocino Interior- 211 AM PST Tue Feb 28 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PST WEDNESDAY... The National Weather Service in Eureka has issued a Freeze Warning...which is in effect from 1 AM to 8 AM PST Wednesday. The Freeze Watch is no longer in effect. * LOW TEMPERATURES...lower 30s this morning. Upper 20s to lower 30s tonight. * LOCATIONS INCLUDE...Boonville...Comptche. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map 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. && $$ CAZ109-010000- /O.NEW.KEKA.FR.Y.0002.170301T0900Z-170301T1600Z/ /O.CON.KEKA.FR.Y.0001.170228T1100Z-170228T1600Z/ Mendocino Coast- 211 AM PST Tue Feb 28 2017 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM PST WEDNESDAY... The National Weather Service in Eureka has issued a Frost Advisory...which is in effect from 1 AM to 8 AM PST Wednesday. * LOW TEMPERATURES...lower 30s. * LOCATIONS INCLUDE...Fort Bragg...Point Arena. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. && $$ CAZ101-103-010000- /O.NEW.KEKA.FR.Y.0002.170301T0900Z-170301T1600Z/ Coastal Del Norte-Northern Humboldt Coast- 211 AM PST Tue Feb 28 2017 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM PST WEDNESDAY... The National Weather Service in Eureka has issued a Frost Advisory...which is in effect from 1 AM to 8 AM PST Wednesday. * LOW TEMPERATURES...lower 30s. * LOCATIONS INCLUDE...Crescent City...Arcata...Eureka... McKinleyville...Fortuna...Rio Dell. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 2:01 PM PST | Freeze Watch | EKA | Del Norte, Humboldt, Mendocino | 279 days |
| Feb 27, 2:01 PM PST | Freeze Warning | EKA | Mendocino | 18 hr |
Nearby
Frost Advisories in California, 2017Every frost advisory in 2017
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.