Alert archive / Oregon / Freeze Warnings in 2019
Freeze Warning 21, NWS Medford, OR
NWS Medford, OR issued this freeze warning at Oct 29, 2019, 1:33 PM PDT for Coos County, Curry County, Douglas County, Oregon. It took effect at Oct 30, 2019, 3:00 AM PDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2019, 1:33 PM PDT (20:33 UTC)
- In effect from
- Oct 30, 2019, 3:00 AM PDT
- Expired
- Oct 30, 2019, 9:00 AM PDT
- In force
- 6 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 20:35 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, 8.6 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
- 1696 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
886 WWUS76 KMFR 292033 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 133 PM PDT Tue Oct 29 2019 ORZ021-300445- /O.UPG.KMFR.FZ.A.0011.191030T1000Z-191030T1600Z/ /O.NEW.KMFR.FZ.W.0021.191030T1000Z-191030T1600Z/ South Central Oregon Coast- Including the cities of Coos Bay, North Bend, Reedsport, Bandon, Port Orford, and Coquille 133 PM PDT Tue Oct 29 2019 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM PDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...South Central Oregon Coast and the Coquille Valley. This includes Reedsport, Coquille, Myrtle Point, and Powers. It also includes the outskirts of Coos Bay and North Bend. * WHEN...From 3 AM to 9 AM PDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect sensitive plants from the cold. Take steps to protect sensitive plumbing. This could include draining water or adding insulation. && $$
2 follow-up statements
231 WWUS76 KMFR 292159 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 259 PM PDT Tue Oct 29 2019 ORZ021-301600- /O.CON.KMFR.FZ.W.0021.191030T1000Z-191030T1600Z/ South Central Oregon Coast- Including the cities of Coos Bay, North Bend, Reedsport, Bandon, Port Orford, and Coquille 259 PM PDT Tue Oct 29 2019 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM PDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...South Central Oregon Coast and the Coquille Valley. This includes Reedsport, Coquille, Myrtle Point, and Powers. It also includes the outskirts of Coos Bay and North Bend. * WHEN...From 3 AM to 9 AM PDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect sensitive plants from the cold. Take steps to protect sensitive plumbing. This could include draining water or adding insulation. && $$
999 WWUS76 KMFR 301601 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 901 AM PDT Wed Oct 30 2019 ORZ021-301715- /O.EXP.KMFR.FZ.W.0021.000000T0000Z-191030T1600Z/ South Central Oregon Coast- Including the cities of Coos Bay, North Bend, Reedsport, Bandon, Port Orford, and Coquille 901 AM PDT Wed Oct 30 2019 ...FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING... Temperatures have risen to above freezing. Therefore, the freeze warning will be allowed to expire. $$
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 2:20 PM PDT | Hazardous Seas Warning | MFR | 15 hr |
Nearby
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.