Alert archive / California / Frost Advisories in 2016
Frost Advisory 19, NWS Eureka, CA
NWS Eureka, CA issued this frost advisory at Dec 1, 2016, 2:10 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Dec 2, 2016, 12:00 AM PST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Dec 1, 2016, 2:10 PM PST (22:10 UTC)
- In effect from
- Dec 2, 2016, 12:00 AM PST
- Expired
- Dec 2, 2016, 9:00 AM PST
- In force
- 9 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 22:08 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 12:00Z, 10.2 hours before the alert went out and 210 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
- 489 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
678 WWUS76 KEKA 012210 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 210 PM PST THU DEC 1 2016 CAZ101>106-109-112-021115- /O.NEW.KEKA.FR.Y.0019.161202T0800Z-161202T1700Z/ COASTAL DEL NORTE-DEL NORTE INTERIOR-NORTHERN HUMBOLDT COAST- SOUTHWESTERN HUMBOLDT-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR-MENDOCINO COAST- SOUTHWESTERN MENDOCINO INTERIOR- 210 PM PST THU DEC 1 2016 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST FRIDAY... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST FRIDAY. * LOW TEMPERATURES...LOW TO MID 30S. * LOCATION INCLUDE...GASQUET...KLAMATH...ARCATA...MCKINLEYVILLE ...BLUE LAKE...EUREKA...MYRTLETOWN...FORTUNA...ROHNERVILLE... CUTTEN...PATROLIA...HONEYDEW...ETTERSBERG...WILLOW CREEK...ORLEANS...WEITCHPEC...HOOPA...GARBERVILLE...BENBOW... SCOTIA...DINSMORE...WEOTT...MYERS FLAT...BRIDGEVILLE... BOONVILLE...AND COMPTCHE. * 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. && $$
2 follow-up statements
791 WWUS76 KEKA 021156 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 356 AM PST FRI DEC 2 2016 CAZ101>106-109-112-021700- /O.CON.KEKA.FR.Y.0019.000000T0000Z-161202T1700Z/ COASTAL DEL NORTE-DEL NORTE INTERIOR-NORTHERN HUMBOLDT COAST- SOUTHWESTERN HUMBOLDT-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR-MENDOCINO COAST- SOUTHWESTERN MENDOCINO INTERIOR- 356 AM PST FRI DEC 2 2016 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * LOW TEMPERATURES...LOW TO MID 30S. * LOCATION INCLUDE...GASQUET...KLAMATH...ARCATA...MCKINLEYVILLE BLUE ...LAKE...EUREKA...MYRTLETOWN...FORTUNA...ROHNERVILLE... CUTTEN...PATROLIA...HONEYDEW...ETTERSBERG...WILLOW CREEK... ORLEANS...WEITCHPEC...HOOPA...GARBERVILLE...BENBOW... SCOTIA... DINSMORE...WEOTT...MYERS FLAT...BRIDGEVILLE... BOONVILLE... AND COMPTCHE. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
810 WWUS76 KEKA 021652 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 852 AM PST FRI DEC 2 2016 CAZ101>106-109-112-021800- /O.EXP.KEKA.FR.Y.0019.000000T0000Z-161202T1700Z/ COASTAL DEL NORTE-DEL NORTE INTERIOR-NORTHERN HUMBOLDT COAST- SOUTHWESTERN HUMBOLDT-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR-MENDOCINO COAST- SOUTHWESTERN MENDOCINO INTERIOR- 852 AM PST FRI DEC 2 2016 ...FROST ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING... OVERNIGHT TEMPERATURES DROPPED INTO THE LOW 30S. TEMPERATURES WILL WARM UP THIS MORNING WITH DAYTIME HEATING. THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT. $$
Nearby
Frost Advisories in California, 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.