Flood Watch issued for parts of Eastern OR & WA
By Logan Bagett on Saturday, August 19th, 2023 in Columbia Basin News More Top Stories
The National Weather Service has issued a flood watch for many parts of Oregon, Washington and Idaho today, calling for excessive rainfall and flooding Sunday night into Tuesday afternoon. See the agency’s full Flood Watch statements below:
(Flood Watches issued by the National Weather Service)
Flood Watch
National Weather Service Pendleton OR
119 PM PDT Sat Aug 19 2023
ORZ049-050-502-503-200700-
/O.NEW.KPDT.FA.A.0003.230821T1200Z-230823T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grande Ronde Valley-Wallowa County-Northern Blue Mountains of Oregon-
Southern Blue Mountains of Oregon-
Including the cities of Meacham, Cove, Tollgate, Elgin, North
Powder, Union, Ukiah, Wallowa, Joseph, Long Creek, Enterprise, and
La Grande
119 PM PDT Sat Aug 19 2023
…FLOOD WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH TUESDAY
AFTERNOON…
* WHAT…Flooding caused by excessive rainfall is possible.
* WHERE…A portion of northeast Oregon, including the following
areas, Grande Ronde Valley, Northern Blue Mountains of Oregon,
Southern Blue Mountains of Oregon and Wallowa County.
* WHEN…From late Sunday night through Tuesday afternoon.
* IMPACTS…Excessive runoff may result in flooding of creeks,
streams, and other low-lying and flood-prone locations like burn
scars and areas of steep terrain. Flooding may occur in poor
drainage and urban areas.
* ADDITIONAL DETAILS…
– The remnants of Hurricane Hilary are forecast to impact
northeastern Oregon Monday and Tuesday. Periods of moderate
to heavy rainfall are possible, in addition to embedded
thunderstorms, due to extremely high levels atmospheric
moisture moving through the region.
– http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS…
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
ts
Flood Watch
National Weather Service Spokane WA
114 PM PDT Sat Aug 19 2023
IDC061-069-079-WAC003-201000-
/O.EXT.KOTX.FA.A.0012.230821T1200Z-230823T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lewis-Nez Perce-Shoshone-Asotin-
Including the cities of Craigmont, Kamiah, Mohler, Nezperce,
Winchester, Lewiston, Culdesac, Gifford, Lapwai, Peck, Cataldo,
Kellogg, Kingston, Murray, Osburn, Pinehurst, Prichard, Calder,
Mullan, Smelterville, Wallace, Clarkston, Clarkston Heights,
Anatone, and Asotin
114 PM PDT Sat Aug 19 2023
…FLOOD WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH TUESDAY
AFTERNOON…
* WHAT…Flooding caused by excessive rainfall continues to be
possible.
* WHERE…Portions of Idaho, including the following counties,
Lewis, Nez Perce and Shoshone. Portions of Southeast Washington,
including the following county, Asotin.
* WHEN…From late Sunday night through Tuesday afternoon.
* IMPACTS…Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS…
– High levels of atmospheric moisture associated with the
remnants of Hurricane Hilary are forecast to impact the
central and lower ID Panhandle and extreme southeast
Washington. Periods of moderate to heavy rainfall are
possible Monday and Tuesday, with enhanced rainfall rates due
to embedded thunderstorms.
– http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS…
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Butler
Flood Watch
National Weather Service Missoula MT
213 PM MDT Sat Aug 19 2023
IDZ006>010-202015-
/O.CON.KMSO.FA.A.0007.230820T1900Z-230822T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Clearwater Mountains-Orofino/Grangeville Region-Lower
Hells Canyon/Salmon River Region-Western Lemhi County-Eastern
Lemhi County-
113 PM PDT Sat Aug 19 2023 /213 PM MDT Sat Aug 19 2023/
…FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING…
* WHAT…Flooding caused by excessive rainfall continues to be
possible.
* WHERE…Portions of central and east central Idaho, including the
following areas, in central Idaho, Lower Hells Canyon/Salmon River
Region, Orofino/Grangeville Region and Southern Clearwater
Mountains. In east central Idaho, Eastern Lemhi County and Western
Lemhi County.
* WHEN…From Sunday afternoon through Monday evening.
* IMPACTS…Excessive runoff may result in flooding of creeks,
streams, and other low-lying and flood-prone locations. Burn scars
and flood prone areas will be at risk for rock, mudslide, debris
flows. Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Low-water crossings
may be flooded.
* ADDITIONAL DETAILS…
– High levels of atmospheric moisture associated with the
remnants of Hurricane Hilary are forecast to impact north-
central Idaho Sunday through Monday. Periods of moderate to
heavy rainfall are possible both days, with enhanced rainfall
rates due to embedded thunderstorms and warm rain processes.
– https://www.weather.gov/mso/hydrology
$$
Flood Watch
National Weather Service Boise ID
1015 AM MDT Sat Aug 19 2023
IDZ011>016-028>030-033-ORZ061>064-200430-
/O.CON.KBOI.FA.A.0004.230820T1200Z-230822T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
West Central Mountains-Lower Treasure Valley ID-Boise Mountains-
Upper Treasure Valley-Southwest Highlands-Western Magic Valley-
Camas Prairie-Owyhee Mountains-Southern Twin Falls County-Upper
Weiser River-Harney County-Baker County-Malheur County-Oregon
Lower Treasure Valley-
Including the cities of McCall, Cascade, Nampa, Caldwell, Idaho
City, Lowman, Garden Valley, Pine, Boise, Mountain Home,
Grasmere, Riddle, Murphy Hot Springs, Twin Falls, Jerome,
Fairfield, Silver City, Hollister, Rogerson, Council, Cambridge,
Midvale, Buchanan, Burns, Crane, Dunnean, New Princeton, Venator,
Diamond, Baker, Malheur City, Ontario, and Nyssa
1015 AM MDT Sat Aug 19 2023 /915 AM PDT Sat Aug 19 2023/
…FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY
EVENING…
* WHAT…Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE…Portions of Idaho, including the following areas, Boise
Mountains, Camas Prairie, Lower Treasure Valley ID, Owyhee
Mountains, Southern Twin Falls County, Southwest Highlands, Upper
Treasure Valley, Upper Weiser River, West Central Mountains and
Western Magic Valley. Portions of Oregon, including the following
areas, Baker County, Harney County, Malheur County and Oregon
Lower Treasure Valley.
* WHEN…From Sunday morning through Monday evening.
* IMPACTS…Excessive runoff may result in flooding of creeks,
streams, and other low-lying and flood-prone locations like burn
scars and areas of steep terrain. Flooding may occur in poor
drainage and urban areas. Low-water crossings may be flooded.
Storm drains and ditches may become clogged with debris. Extensive
street flooding and flooding of creeks and rivers is possible.
* ADDITIONAL DETAILS…
– A monsoon moisture surge Sunday followed by tropical moisture
from the remnants of Hurricane Hilary Monday has increased
confidence in the potential for flash flooding. The heaviest
rainfall is expected Monday when Hilary`s moisture interacts
with an incoming Pacific upper trough, producing rainfall
rates as high as 3 inches per hour.
– http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS…
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
BOI
