Alert archive / California / Flash Flood Warnings in 2017
Flash Flood Warning 2, NWS Medford, OR
NWS Medford, OR issued this flash flood warning at Jun 19, 2017, 7:50 PM PDT for Modoc County, Siskiyou County, California. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 19, 2017, 7:50 PM PDT (02:50 UTC)
- Expired
- Jun 19, 2017, 10:15 PM PDT
- In force
- 2 hr
- Issued by
- NWS Medford, OR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Modoc County, CA, Siskiyou County, CA
The radar
The Medford radar (KMAX), 107 km from the middle of the area, began a volume at 02:51 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, 2.8 hours before the alert went out and 129 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
- 1180 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 2123 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
982 WGUS56 KMFR 200250 FFWMFR CAC049-093-200515- /O.NEW.KMFR.FF.W.0002.170620T0250Z-170620T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Medford OR 750 PM PDT MON JUN 19 2017 The National Weather Service in Medford has issued a * Flash Flood Warning for... East central Siskiyou County in northern California... Western Modoc County in northern California... * Until 1015 PM PDT * At 748 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Radar estimates one to three inches of rain have fallen in the last hour. Flash flooding is likely occurring or expected to begin shortly. * Some locations that will experience flooding include... Lava Beds National Monument, Doorknob Snow Park and Four Corners Snow Park. * This includes... Highway 139 in Modoc County California between mile markers 30 and 32. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. Please report flooding to your local law enforcement agency when you can do so safely. && LAT...LON 4161 12174 4173 12175 4173 12125 4166 12129 $$ MAS
2 follow-up statements
519 WGUS76 KMFR 200340 FFSMFR Flash Flood Statement National Weather Service Medford OR 840 PM PDT MON JUN 19 2017 CAC049-093-200515- /O.CON.KMFR.FF.W.0002.000000T0000Z-170620T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Siskiyou CA-Modoc CA- 840 PM PDT MON JUN 19 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM PDT FOR EAST CENTRAL SISKIYOU AND WESTERN MODOC COUNTIES... At 838 PM PDT, Doppler radar indicates that showers and thunderstorms lifted north of the warned area, but additional storms may move back in over the area in the next hour. One and a half to three inches of rain have fallen since earlier this evening. Flash flooding is likely occurring. Some locations that will experience flooding include... Lava Beds National Monument, Doorknob Snow Park and Four Corners Snow Park. * This includes... Highway 139 in Modoc County California between mile markers 30 and 32. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. Please report flooding to your local law enforcement agency when you can do so safely. && LAT...LON 4161 12174 4173 12175 4173 12125 4166 12129 $$ MAS
869 WGUS76 KMFR 200447 RRA FFSMFR Flash Flood Statement National Weather Service Medford OR 947 PM PDT MON JUN 19 2017 CAC049-093-200457- /O.CAN.KMFR.FF.W.0002.000000T0000Z-170620T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Siskiyou CA-Modoc CA- 947 PM PDT MON JUN 19 2017 ...THE FLASH FLOOD WARNING FOR EAST CENTRAL SISKIYOU AND WESTERN MODOC COUNTIES IS CANCELLED... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 4161 12174 4173 12175 4173 12125 4166 12129 $$ WRIGHT
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 6:51 PM PDT | Special Weather Statement | MFR | Siskiyou | 39 min |
| Jun 19, 7:05 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 20 min |
| Jun 19, 7:14 PM PDT | Flash Flood Warning | MFR | Modoc, Siskiyou | 3 hr |
| Jun 19, 7:53 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 52 min |
| Jun 19, 8:44 PM PDT | Severe Thunderstorm Warning | MFR | Siskiyou | 28 min |
Nearby
Flash Flood Warnings in California, 2017Every flash flood warning 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.