Alert archive / Oregon / Frost Advisories in 2024
Frost Advisory 7, NWS Medford, OR
NWS Medford, OR issued this frost advisory at Nov 27, 2024, 12:01 PM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Nov 28, 2024, 2:00 AM PST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Nov 27, 2024, 12:01 PM PST (20:01 UTC)
- In effect from
- Nov 28, 2024, 2:00 AM PST
- Expired
- Nov 28, 2024, 9:00 AM PST
- In force
- 7 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 19:59 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, 8.0 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
- 598 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Nov 27, 9:40 AM PST, 2 hours 21 minutes earlier.
Area forecast discussion, Nov 27, 9:40 AM PST, 2 hours 21 minutes before
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</html>The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 12:01 PM PST | Freeze Watch | MFR | Coos, Curry, Douglas | 15 hr |
| Nov 27, 2:38 PM PST | Beach Hazards Statement | MFR | Coos, Curry, Douglas | 4 days |
Nearby
Frost Advisories in Oregon, 2024Every frost advisory in 2024
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.