Alert archive / California / River Flood Warnings in 2017
River Flood Warning 17, NWS Medford, OR
NWS Medford, OR issued this river flood warning at Feb 21, 2017, 9:36 AM PST for Modoc County, California. It took effect at Feb 21, 2017, 11:00 AM PST. It was in force for 51 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 21, 2017, 9:36 AM PST (17:36 UTC)
- In effect from
- Feb 21, 2017, 11:00 AM PST
- Expired
- Feb 23, 2017, 2:17 PM PST
- In force
- 51 hr
- Issued by
- NWS Medford, OR
- Area
- Storm-based polygon
- Flood severity
- Moderate
County Modoc County, CA
The radar
The Medford radar (KMAX), 168 km from the middle of the area, began a volume at 17:37 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 river
Written for the forecast point Pit River near Canby (CNBC1). The gauge peaked at 9.24 ft at Feb 22, 2017, 3:00 PM PST.
- Action stage
- 7.5 ft
- Minor stage
- 8.5 ft
- Moderate stage
- 9 ft
- Major stage
- 10 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 11348500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
444 WGUS46 KMFR 211736 FLWMFR Bulletin - Immediate Broadcast Requested Flood Warning National Weather Service Medford, OR 936 AM PST TUE FEB 21 2017 ...The National Weather Service in Medford has issued a Flood Warning for the following rivers in California... Pit River near Canby affecting Modoc County... .Heavy rain combined with snow melt is causing rapid rises in the pit River. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-212336- /O.NEW.KMFR.FL.W.0017.170221T1900Z-170223T1000Z/ /CNBC1.2.ER.170221T1900Z.170222T0200Z.170222T2200Z.UU/ 936 AM PST TUE FEB 21 2017 The National Weather Service in Medford has issued a * Flood Warning for the Pit River near Canby. * until late Wednesday afternoon. * At 8:45 AM Tuesday the stage was 8.2 feet. * Flood Stage is 8.5 feet. * Moderate flooding is forecast with the river cresting near 9.0 feet Tuesday night. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County. Peak flows will be around 4000 cfs. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ Stockton
10 follow-up statements
595 WGUS86 KMFR 212330 FLSMFR Flood Statement National Weather Service Medford, OR 330 PM PST TUE FEB 21 2017 ...The Flood Warning continues for the following rivers in California... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-221200- /O.CON.KMFR.FL.W.0017.000000T0000Z-170223T1000Z/ /CNBC1.1.ER.170221T2306Z.170222T0600Z.170222T2200Z.UU/ 330 PM PST TUE FEB 21 2017 The Flood Warning continues for the Pit River near Canby. * At 2:45 PM Tuesday the stage was 8.5 feet. * Flood Stage is 8.5 feet. * Minor flooding is forecast. The river will crest near 8.8 feet tonight. Peak flows will be near 3800 cfs. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ Stockton
591 WGUS86 KMFR 221203 FLSMFR Flood Statement National Weather Service Medford, OR 403 AM PST WED FEB 22 2017 ...The Flood Warning continues for the following rivers in Oregon... California... Coquille River at Coquille affecting Coos County... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && ORC011-221803- /O.EXT.KMFR.FL.W.0018.000000T0000Z-170223T2037Z/ /COQO3.1.ER.170222T1302Z.170222T2100Z.170223T0837Z.NO/ 403 AM PST WED FEB 22 2017 The Flood Warning continues for the Coquille River at Coquille. * At 3:30 AM Wednesday the stage was 20.9 feet. * Flood Stage is 21.0 feet. * Minor flooding is forecast. * Forecast...The river is forecast to rise above flood stage early this morning. The river is forecast to crest around 21.5 feet this afternoon and evening, then remain above flood stage through at least tonight. * Impact...At 21.0 feet...The Coquille River is at flood stage. Expect flooding of farmland and low-lying areas throughout the flood plain along the Coquille River. * Flood History...This crest compares to a previous crest of 21.7 feet on Mar 15 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$ CAC049-221803- /O.EXT.KMFR.FL.W.0017.000000T0000Z-170223T1300Z/ /CNBC1.1.ER.170222T0015Z.170222T1045Z.170223T0100Z.UU/ 403 AM PST WED FEB 22 2017 The Flood Warning continues for the Pit River near Canby. * At 2:45 AM Wednesday the stage was 8.9 feet. * Flood Stage is 8.5 feet. * Minor flooding is occurring and Moderate flooding is forecast. * Forecast...The river is forecast to crest early this morning near 9.0 feet. The river is forecast to remain above flood stage through this evening. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County 4300 cfs && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$
741 WGUS46 KMFR 221210 FLWMFR Bulletin - Immediate Broadcast Requested Flood Warning National Weather Service Medford, OR 410 AM PST WED FEB 22 2017 ...Observed flooding changed from Minor to Minor severity for the following rivers in California... ...Forecast flooding changed from Minor to Moderate severity for the following rivers in California... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-221810- /O.EXT.KMFR.FL.W.0017.000000T0000Z-170223T1548Z/ /CNBC1.2.ER.170222T0015Z.170222T1500Z.170223T0348Z.UU/ 410 AM PST WED FEB 22 2017 ...Forecast flooding increased from Minor TO Moderate severity... The Flood Warning continues for the Pit River near Canby.* At 3:45 AM Wednesday the stage was 9.0 feet. * Flood Stage is 8.5 feet. * Minor flooding is occurring and Moderate flooding is forecast. * Forecast...The river is forecast to crest early this morning near 9.2 feet. The river is forecast to remain above flood stage through this evening. Peak flow is expected to be near 4300 CFS. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$
872 WGUS86 KMFR 221212 FLSMFR Flood Statement National Weather Service Medford, OR 412 AM PST WED FEB 22 2017 ...The Flood Warning continues for the following rivers in Oregon... California... Coquille River at Coquille affecting Coos County... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-221812- /O.CON.KMFR.FL.W.0017.000000T0000Z-170223T1548Z/ /CNBC1.2.ER.170222T0015Z.170222T1500Z.170223T0348Z.UU/ 412 AM PST WED FEB 22 2017 The Flood Warning continues for the Pit River near Canby. * At 3:45 AM Wednesday the stage was 9.0 feet. * Flood Stage is 8.5 feet. * Minor flooding is occurring and Moderate flooding is forecast. * Forecast...The river is forecast to crest early this morning near 9.2 feet. The river is forecast to remain above flood stage through this evening. Peak flow is expected to be near 4300 CFS. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County 4300 cfs && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ ORC011-221812- /O.CON.KMFR.FL.W.0018.000000T0000Z-170223T2037Z/ /COQO3.1.ER.170222T1302Z.170222T2100Z.170223T0837Z.NO/ 412 AM PST WED FEB 22 2017 The Flood Warning continues for the Coquille River at Coquille. * At 3:30 AM Wednesday the stage was 20.9 feet. * Flood Stage is 21.0 feet. * Minor flooding is forecast. * Forecast...The river is forecast to rise above flood stage early this morning. The river is forecast to crest around 21.5 feet this afternoon and evening, then remain above flood stage through at least tonight. * Impact...At 21.0 feet...The Coquille River is at flood stage. Expect flooding of farmland and low-lying areas throughout the flood plain along the Coquille River. * Flood History...This crest compares to a previous crest of 21.7 feet on Mar 15 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$
423 WGUS86 KMFR 221654 FLSMFR Flood Statement National Weather Service Medford, OR 854 AM PST WED FEB 22 2017 ...The Flood Warning continues for the following rivers in Oregon and California... Coquille River at Coquille affecting Coos County... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-222254- /O.EXT.KMFR.FL.W.0017.000000T0000Z-170224T0300Z/ /CNBC1.2.ER.170222T0015Z.170222T1545Z.170223T1500Z.UU/ 854 AM PST WED FEB 22 2017 The Flood Warning continues for the Pit River near Canby. * At 7:45 AM Wednesday the stage was 9.1 feet. * Flood Stage is 8.5 feet. * Moderate flooding is occurring and Moderate flooding is forecast. * Forecast...The river will crest this morning and begin to fall. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ ORC011-222254- /O.EXT.KMFR.FL.W.0018.000000T0000Z-170223T1403Z/ /COQO3.1.ER.170222T1405Z.170222T1630Z.170223T0203Z.NO/ 854 AM PST WED FEB 22 2017 The Flood Warning continues for the Coquille River at Coquille. * At 8:30 AM Wednesday the stage was 21.2 feet. * Flood Stage is 21.0 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will crest this morning and fall below Flood Stage by tonight. * Impact...At 21.0 feet...The Coquille River is at flood stage. Expect flooding of farmland and low-lying areas throughout the flood plain along the Coquille River. * Flood History...This crest compares to a previous crest of 21.7 feet on Mar 15 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$
695 WGUS86 KMFR 222242 FLSMFR Flood Statement National Weather Service Medford, OR 242 PM PST WED FEB 22 2017 ...The Flood Warning continues for the following rivers in Oregon... and California... Coquille River at Coquille affecting Coos County... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-230442- /O.EXT.KMFR.FL.W.0017.000000T0000Z-170224T0400Z/ /CNBC1.2.ER.170222T0015Z.170222T2145Z.170223T1600Z.UU/ 242 PM PST WED FEB 22 2017 The Flood Warning continues for the Pit River near Canby. * At 1:45 PM Wednesday the stage was 9.2 feet. * Flood Stage is 8.5 feet. * Moderate flooding is occurring. * Forecast...The river will continue to fall to below Flood Stage by tomorrow morning. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County 4300 cfs && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ ORC011-230442- /O.EXT.KMFR.FL.W.0018.000000T0000Z-170224T1317Z/ /COQO3.1.ER.170222T1405Z.170223T0200Z.170224T0117Z.NO/ 242 PM PST WED FEB 22 2017 The Flood Warning continues for the Coquille River at Coquille. * At 11:30 AM Wednesday the stage was 21.7 feet. * Flood Stage is 21.0 feet. * Minor flooding is occurring. * Impact...At 21.0 feet...The Coquille River is at flood stage. Expect flooding of farmland and low-lying areas throughout the flood plain along the Coquille River. * Flood History...This crest compares to a previous crest of 23.6 feet on Dec 16 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$
914 WGUS86 KMFR 230445 FLSMFR Flood Statement National Weather Service Medford, OR 845 PM PST WED FEB 22 2017 ...The Flood Warning continues for the following rivers in California... Pit River near Canby affecting Modoc County... ...The Flood Warning continues for the following rivers in Oregon... Coquille River at Coquille affecting Coos County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-231045- /O.EXT.KMFR.FL.W.0017.000000T0000Z-170224T1200Z/ /CNBC1.2.ER.170222T0015Z.170223T0145Z.170224T0000Z.UU/ 845 PM PST WED FEB 22 2017 The Flood Warning continues for the Pit River near Canby. * At 7:45 PM Wednesday the stage was 9.2 feet. * Flood Stage is 8.5 feet. * Moderate flooding is occurring and Moderate flooding is forecast. * Forecast...The river will continue to fall to below Flood Stage by Thursday afternoon. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County 4300 cfs && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ ORC011-231045- /O.CON.KMFR.FL.W.0018.000000T0000Z-170224T1317Z/ /COQO3.1.ER.170222T1405Z.170223T0500Z.170224T0117Z.NO/ 845 PM PST WED FEB 22 2017 The Flood Warning continues for the Coquille River at Coquille. * At 11:30 AM Wednesday the stage was 21.7 feet. * Flood Stage is 21.0 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will begin to fall this evening and is expected to fall below flood stage late Thursday afternoon. * Impact...At 21.0 feet...The Coquille River is at flood stage. Expect flooding of farmland and low-lying areas throughout the flood plain along the Coquille River. * Flood History...This crest compares to a previous crest of 23.6 feet on Dec 16 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$
175 WGUS86 KMFR 231035 FLSMFR Flood Statement National Weather Service Medford, OR 235 AM PST THU FEB 23 2017 ...The Flood Warning continues for the following rivers in Oregon... Coquille River at Coquille affecting Coos County... ...The Flood Warning continues for the following rivers in California... Pit River near Canby affecting Modoc County... .The Pit River has receded from moderate flooding to monior flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && CAC049-231635- /O.CON.KMFR.FL.W.0017.000000T0000Z-170224T1200Z/ /CNBC1.2.ER.170222T0015Z.170223T0145Z.170224T0000Z.UU/ 235 AM PST THU FEB 23 2017 The Flood Warning continues for the Pit River near Canby. * At 1:45 AM Thursday the stage was 9.0 feet. * Flood Stage is 8.5 feet. * The river is receding and minor flooding is forecast. * The river is expected to fall below flood stage around 4 PM PST this afternoon. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$ ORC011-231635- /O.EXT.KMFR.FL.W.0018.000000T0000Z-170225T0013Z/ /COQO3.1.ER.170222T1405Z.170223T0930Z.170224T1213Z.NO/ 235 AM PST THU FEB 23 2017 The Flood Warning continues for the Coquille River at Coquille. * At 1:30 AM Thursday the stage was 22.5 feet, which is expected to be the peak stage reading for this flood event. * Flood Stage is 21.0 feet. * Minor flooding is occurring and minor flooding is forecast. * Forecast...The river is forecast to fall to below flood stage during Friday morning. * Impact...At 23.0 feet...Some farm buildings may be threatened and roads covered in low areas by rising water. Expect widespread flooding throughout the Coquille River floodplain. * Flood History...This crest compares to a previous crest of 23.6 feet on Dec 16 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$
098 WGUS86 KMFR 231626 FLSMFR Flood Statement National Weather Service Medford, OR 826 AM PST THU FEB 23 2017 ...The Flood Warning continues for the following rivers in Oregon... Coquille River at Coquille affecting Coos County... ...The Flood Warning continues for the following rivers in California... Pit River near Canby affecting Modoc County... PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && ORC011-232226- /O.EXT.KMFR.FL.W.0018.000000T0000Z-170224T2020Z/ /COQO3.1.ER.170222T1405Z.170223T0930Z.170224T0820Z.NO/ 826 AM PST THU FEB 23 2017 The Flood Warning continues for the Coquille River at Coquille. * At 7:30 AM Thursday the stage was 22.2 feet. * Flood Stage is 21.0 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will continue to fall to below Flood Stage by early Friday morning. * Impact...At 23.0 feet...Some farm buildings may be threatened and roads covered in low areas by rising water. Expect widespread flooding throughout the Coquille River floodplain. * Flood History...This crest compares to a previous crest of 23.6 feet on Dec 16 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$ CAC049-232226- /O.CON.KMFR.FL.W.0017.000000T0000Z-170224T1200Z/ /CNBC1.2.ER.170222T0015Z.170223T0145Z.170224T0000Z.UU/ 826 AM PST THU FEB 23 2017 The Flood Warning continues for the Pit River near Canby. * At 7:45 AM Thursday the stage was 8.7 feet. * Flood Stage is 8.5 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will continue to fall to below flood stage by this afternoon. * Impact...At 9.0 feet...Expect moderate flooding in Canby and Lookout in Modoc County and Beiber and Nubeiber in Lassen County 4300 cfs && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$
693 WGUS86 KMFR 232217 FLSMFR Flood Statement National Weather Service Medford, OR 217 PM PST THU FEB 23 2017 ...The Flood Warning is canceled for the following rivers in California... Pit River near Canby affecting Modoc County... ...The Flood Warning continues for the following rivers in Oregon... Coquille River at Coquille affecting Coos County... .The Pit River at Canby has come down below flood stage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded areas or roads. The water may be too deep or there may be unseen damage to the roadway. For the latest river stages and forecasts, visit our web page at www.weather.gov/medford or listen to noaa weather radio. && ORC011-240417- /O.CON.KMFR.FL.W.0018.000000T0000Z-170224T2020Z/ /COQO3.1.ER.170222T1405Z.170223T0930Z.170224T0820Z.NO/ 217 PM PST THU FEB 23 2017 The Flood Warning continues for the Coquille River at Coquille. * At 11:30 AM Thursday the stage was 22.1 feet. * Flood Stage is 21.0 feet. * Minor flooding is occurring and Minor flooding is forecast. * Forecast...The river will continue to fall to below Flood Stage by after midnight tonight. * Impact...At 23.0 feet...Some farm buildings may be threatened and roads covered in low areas by rising water. Expect widespread flooding throughout the Coquille River floodplain. * Flood History...This crest compares to a previous crest of 23.6 feet on Dec 16 2016. && LAT...LON 4312 12442 4307 12416 4310 12412 4323 12422 4316 12441 $$ CAC049-232247- /O.CAN.KMFR.FL.W.0017.000000T0000Z-170224T1200Z/ /CNBC1.2.ER.170222T0015Z.170223T0145Z.170223T2052Z.UU/ 217 PM PST THU FEB 23 2017 The Flood Warning is canceled for the Pit River near Canby. * At 1:45 PM Thursday the stage was 8.5 feet. * Flood Stage is 8.5 feet. * Fell below Flood Stage at 12:52 PM Thursday. * Forecast...The river will continue to fall to 7.9 feet by early tomorrow. && LAT...LON 4119 12109 4145 12058 4155 12065 4139 12118 4119 12121 $$
What forecasters said that day
The local office's own words before this river flood warning 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 river flood warning went out at Feb 21, 9:11 AM PST, 25 minutes earlier.
Area forecast discussion, Feb 21, 9:11 AM PST, 25 minutes before
Area Forecast Discussion
National Weather Service Medford OR
911 AM PST Tue Feb 21 2017
Updated marine and aviation sections.
.AVIATION...21/18z TAF CYCLE...VFR conditions with local MVFR cigs
in showers will persist into this evening with areas of higher
terrain obscured. MVFR cigs/vsbys will increase tonight as showers
persist and gradually change to snow showers over the inland areas.
Freezing levels across the area will drop to 2000 feet elevation
tonight and to 1000 to 2000 feet tomorrow morning. The lower
conditions will persist through mid-morning Wednesday. -JRS
.MARINE...Updated 900 AM PST Tuesday 21 February 2017...West to
northwest winds will gust to small craft levels through this
afternoon with steep seas. There will be periods of moderate to
locally heavy showers through today with a slight chance of
thunderstorms south of Cape Blanco. Winds and seas will lower by
early this evening. However, increasing northwest winds and seas are
expected Wednesday night into Thursday, with seas building to at
least small craft advisory levels during this time. This active
wet weather pattern will continue through the week. -JRS
&&
.PREV DISCUSSION... /Issued 848 AM PST Tue Feb 21 2017/
DISCUSSION...Updates will be sent over the next hour or so,
primarily to address headlines.
The basic situation is that we have a stacked low pressure system
roughly over Coos Bay at this time which will be moving off to
the north. This will allow gradients to weaken and general winds
to diminish on the west side. It will remain breezy to windy east
of the Cascades, which is currently covered with wind warnings and
advisories. Plenty of showers will continue in this system's
wake, especially this morning and especially in upslope areas.
Models also show considerable instability, so it wouldn't be
surprising to see a few lightning strikes today. Radar shows
lots of showers ongoing, and high resolution models show this
continuing through the morning, then tapering off during the
afternoon. As precipitation is showery in nature, I don't expect
much more potential for flooding, so current areal flood watches
will be dropped. Cameras show snow occuring over the mountains and
on the east side, and thus the winter weather headlines we have
there look on track. Many updates will be forthcoming. -Wright
PREV DISCUSSION... /Issued 453 AM PST Tue Feb 21 2017/
DISCUSSION...
Yet another impressive low pressure system is moving through the
forecast area this morning with more rain, wind, and mountain
snow. The surface low pressure center moved onshore near
Brookings around 0900Z / 1AM PST. Cold air advection at the mid
and upper levels will continue into Thursday morning. 500mb
temperatures near -27C this morning will fall to a frigid -39C by
Thursday morning.
Rainfall rates overnight were occasionally 0.25" to 0.50" per hour
along and near the coast and in Western Siskiyou County. One
report of 1.05" in one hour came in from Flynn Prairie in the
Curry Coastal Mountains. Snow levels have been slow to fall, thus
far, this morning at about 3500 feet near the Coastal Mountains
to 5500 feet in Modoc County. A cluster of thunderstorms formed
northeast of Shasta Lake, but weakened before moving into Siskiyou
County. The Pit River near Canby has now risen past action stage.
A flood watch is in effect for this forecast point, and the
current expectation is for minor flooding there late this
afternoon through Wednesday morning. The Rogue River at Agness is
expected to reach action stage late this afternoon through
Wednesday. Of note, Bear Creek at Medford is nearing 7.5 feet and
action stage is 8 feet.
Showers and possibly isolated thunderstorms with gusty winds are
expected this morning, with showers diminishing in coverage this
afternoon. Areal flood watches remain in effect for portions of
Siskiyou, Josephine, the coastal counties through 10 am PST due to
the concern of training showers and isolated thunderstorms
combining with continued run-off to push some streams and creeks
possibly out of their banks. In Siskiyou County mid-elevation snow
melt is still a contributing factor. Snow levels will fall to
near 3000 feet this evening, and then into the 1500 to 2500 foot
range Wednesday morning. Winter headlines remain out, and have
been updated with the latest snow level, additional accumulation
amounts, and winds. On the east side those headlines mostly remain
for wind, falling snow levels, but minimal additional
accumulations. Pulses of showers are expected to move through the
forecast area through at least Thursday morning. Current
headlines focus on the current low pressure system, but expect
advisories for snow will be needed in some areas over the next 3
days or so. BTL
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Wind Warning until 4 PM PST this afternoon for ORZ030-031.
Winter Weather Advisory until 4 PM PST this afternoon for
ORZ030.
Wind Advisory until 4 PM PST this afternoon for ORZ029>031.
Winter Weather Advisory until 10 PM PST this evening ABOVE 4000
FEET for for ORZ027-028.
CA...High Wind Warning until 4 PM PST this afternoon for CAZ085.
Wind Advisory until 4 PM PST this afternoon for CAZ084-085.
Pacific Coastal Waters...Small Craft Advisory until 4 PM PST this
afternoon for PZZ350-356-370-376.In the hours before
Local storm report, Feb 21, 5:19 AM PST, 4 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
519 AM PST TUE FEB 21 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0518 AM HEAVY RAIN GOLD BEACH 42.41N 124.42W
02/21/2017 M2.02 INCH CURRY OR TRAINED SPOTTER
. THE DURATION OF THE HEAVY RAIN EVENT WAS
24 HOURS.
&&
CZSLocal storm report, Feb 21, 7:29 AM PST, 2 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
729 AM PST TUE FEB 21 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0728 AM HEAVY RAIN 2 SE ROSEBURG 43.20N 123.33W
02/21/2017 M1.23 INCH DOUGLAS OR TRAINED SPOTTER
. THE DURATION OF THE HEAVY RAIN EVENT WAS
24 HOURS.
&&
CZSLocal storm report, Feb 21, 8:47 AM PST, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
847 AM PST TUE FEB 21 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0846 AM HEAVY RAIN 2 SSE PISTOL RIVER 42.26N 124.39W
02/21/2017 M1.31 INCH CURRY OR TRAINED SPOTTER
. THE DURATION OF THE HEAVY RAIN EVENT WAS
24 HOURS.
&&
NSKLocal storm report, Feb 21, 9:27 AM PST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
927 AM PST TUE FEB 21 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM HEAVY RAIN 2 ENE NORTH BEND 43.42N 124.20W
02/21/2017 M1.51 INCH COOS OR TRAINED SPOTTER
. THE DURATION OF THE HEAVY RAIN EVENT WAS
24 HOURS.
&&
BSThe office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 10:32 PM PST | River Flood Watch | MFR | Modoc | 13 hr |
Nearby
River Flood Warnings in California, 2017Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.