Marine Weather and Tide Forecast for Winthrop, WA
July 2, 2024 10:47 PM PDT (05:47 UTC) Change Location
 | Sunrise 5:07 AM Sunset 9:03 PM Moonrise 12:57 AM Moonset 5:34 PM |
FXUS66 KOTX 030502 AFDOTX
Area Forecast Discussion National Weather Service Spokane WA 1002 PM PDT Tue Jul 2 2024
SYNOPSIS
Mountain showers, seasonal temperatures, and breezy winds will recur through Wednesday. Confidence is increasing in a substantial long duration heatwave starting after July 4th. It is expected to last through midweek.
DISCUSSION
...Extended period of very hot and dry conditions starting Saturday...
Tonight and Wednesday: The Inland Northwest will be under the influence of an exiting trough and strengthening ridge for the period. Any shower and thunderstorm activity will generally be over North Idaho. The main impact from the thunderstorms will be lightning and brief heavy rain. Afternoon winds will be breezy across the Basin as elevated winds mix down to the surface.
Sustained winds will be in the teens with gusts near 25 MPH. The Cascades Gaps could see stronger gusts into the 30s. Highs will rise a few degrees warmer each day. Highs will be in the upper 70s and 80s. Overnight lows will be in the upper 40s and 50s.
Thursday through Tuesday: The region will be under a strengthening ridge for the period. It will usher in several days of hot, dry conditions. Winds will generally be light with mild increases from the afternoon mixing. Gusts will stay below 20 MPH. The main concern is the prolonged dry, warming period for most of the region. Temperatures will steadily climb through the weekend and start of next week. The highs are expected in the upper 80s and 90s. There is the possibility of triple digits across the Basin starting Friday and lasting through the end period. Overnight lows will be in the upper 50s to low 70s. The long dry, hot pattern and 4th of July holiday could make for bad combination.
Ensembles are not bringing much in the way of any relief through the period. /JDC
AVIATION
06Z TAFS: Scattered showers and isolated t-storms will dissipate in coverage after dark over NE WA and N ID. Some lingering showers may drift south by the Spokane to Coeur d'Alene area, but for the most part it is expected to be dry at TAF sites. Gusty winds will abate. However some localized LLWS is possible, including near MWH and PUW. Some patchy fog is possible in the sheltered northeast valleys later overnight/early Wednesday from the rain showers. TAF sites are projected to be VFR.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence in VFR conditions. Lows confidence in dying showers slipping south by GEG, SFF, COE late this evening/overnight.
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Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance
For additional probabilistic information for NWS Spokane airports, please refer to the Aviation Dashboard on our webpage: https:/ www.weather.gov/otx/avndashboard
PRELIMINARY POINT TEMPS/POPS
Spokane 52 83 54 87 57 93 / 0 0 0 0 0 0 Coeur d'Alene 52 78 53 82 55 88 / 10 0 0 0 0 0 Pullman 50 77 51 83 54 89 / 0 0 0 0 0 0 Lewiston 58 86 60 92 62 98 / 0 0 0 0 0 0 Colville 45 80 45 84 49 91 / 10 0 0 0 0 0 Sandpoint 50 75 48 80 50 86 / 20 10 10 0 0 0 Kellogg 53 73 55 80 58 85 / 10 10 0 0 0 0 Moses Lake 56 88 55 92 59 99 / 0 0 0 0 0 0 Wenatchee 57 87 60 92 64 99 / 0 0 0 0 0 0 Omak 55 86 57 92 59 99 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
ID...Excessive Heat Watch from Saturday afternoon through Tuesday evening for Idaho Palouse-Lewis and Southern Nez Perce Counties-Lewiston Area.
WA...Excessive Heat Watch from Saturday afternoon through Tuesday evening for Central Chelan County-Lower Garfield and Asotin Counties-Moses Lake Area-Northeast Blue Mountains-Okanogan Valley-Spokane Area-Upper Columbia Basin-Washington Palouse- Waterville Plateau-Wenatchee Area-Western Okanogan County.
Area Forecast Discussion National Weather Service Spokane WA 1002 PM PDT Tue Jul 2 2024
SYNOPSIS
Mountain showers, seasonal temperatures, and breezy winds will recur through Wednesday. Confidence is increasing in a substantial long duration heatwave starting after July 4th. It is expected to last through midweek.
DISCUSSION
...Extended period of very hot and dry conditions starting Saturday...
Tonight and Wednesday: The Inland Northwest will be under the influence of an exiting trough and strengthening ridge for the period. Any shower and thunderstorm activity will generally be over North Idaho. The main impact from the thunderstorms will be lightning and brief heavy rain. Afternoon winds will be breezy across the Basin as elevated winds mix down to the surface.
Sustained winds will be in the teens with gusts near 25 MPH. The Cascades Gaps could see stronger gusts into the 30s. Highs will rise a few degrees warmer each day. Highs will be in the upper 70s and 80s. Overnight lows will be in the upper 40s and 50s.
Thursday through Tuesday: The region will be under a strengthening ridge for the period. It will usher in several days of hot, dry conditions. Winds will generally be light with mild increases from the afternoon mixing. Gusts will stay below 20 MPH. The main concern is the prolonged dry, warming period for most of the region. Temperatures will steadily climb through the weekend and start of next week. The highs are expected in the upper 80s and 90s. There is the possibility of triple digits across the Basin starting Friday and lasting through the end period. Overnight lows will be in the upper 50s to low 70s. The long dry, hot pattern and 4th of July holiday could make for bad combination.
Ensembles are not bringing much in the way of any relief through the period. /JDC
AVIATION
06Z TAFS: Scattered showers and isolated t-storms will dissipate in coverage after dark over NE WA and N ID. Some lingering showers may drift south by the Spokane to Coeur d'Alene area, but for the most part it is expected to be dry at TAF sites. Gusty winds will abate. However some localized LLWS is possible, including near MWH and PUW. Some patchy fog is possible in the sheltered northeast valleys later overnight/early Wednesday from the rain showers. TAF sites are projected to be VFR.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence in VFR conditions. Lows confidence in dying showers slipping south by GEG, SFF, COE late this evening/overnight.
-----------------------
Confidence descriptors: Low - Less than a 30 percent chance Moderate - 30 to 70 percent chance High - Greater than a 70 percent chance
For additional probabilistic information for NWS Spokane airports, please refer to the Aviation Dashboard on our webpage: https:/ www.weather.gov/otx/avndashboard
PRELIMINARY POINT TEMPS/POPS
Spokane 52 83 54 87 57 93 / 0 0 0 0 0 0 Coeur d'Alene 52 78 53 82 55 88 / 10 0 0 0 0 0 Pullman 50 77 51 83 54 89 / 0 0 0 0 0 0 Lewiston 58 86 60 92 62 98 / 0 0 0 0 0 0 Colville 45 80 45 84 49 91 / 10 0 0 0 0 0 Sandpoint 50 75 48 80 50 86 / 20 10 10 0 0 0 Kellogg 53 73 55 80 58 85 / 10 10 0 0 0 0 Moses Lake 56 88 55 92 59 99 / 0 0 0 0 0 0 Wenatchee 57 87 60 92 64 99 / 0 0 0 0 0 0 Omak 55 86 57 92 59 99 / 0 0 0 0 0 0
OTX WATCHES/WARNINGS/ADVISORIES
ID...Excessive Heat Watch from Saturday afternoon through Tuesday evening for Idaho Palouse-Lewis and Southern Nez Perce Counties-Lewiston Area.
WA...Excessive Heat Watch from Saturday afternoon through Tuesday evening for Central Chelan County-Lower Garfield and Asotin Counties-Moses Lake Area-Northeast Blue Mountains-Okanogan Valley-Spokane Area-Upper Columbia Basin-Washington Palouse- Waterville Plateau-Wenatchee Area-Western Okanogan County.
Link to 1 hour of 5 minute data for KOMK
Terminal Aerodrome Forecast (TAF) for KOMK
toggle option: (graph/table)
Terminal Aerodrome Forecast (TAF) for KOMK
Wind History graph: OMK
(wind in knots)
Spokane, WA,
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