Editing Seaside, Oregon (section)

==Geography==
According to the [[United States Census Bureau]], the city has a total area of {{convert|4.14|sqmi|sqkm|2}}, of which {{convert|3.94|sqmi|sqkm|2}} is land and {{convert|0.20|sqmi|sqkm|2}} is water.<ref name="Gazetteer files">{{cite web|title=US Gazetteer files 2010 |url=https://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt |publisher=[[United States Census Bureau]] |access-date=2012-12-21 |url-status=dead |archive-url=https://web.archive.org/web/20120702145235/http://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt |archive-date=2012-07-02 }}</ref>

{{Wide image|Seaside, OR - pano 01 (360 degree pano) (19326200874).jpg|1400px|360° (scrollable)  panoramic view from the beach at Seaside. Tillamook Head at left.}}

Seaside lies on the edge of the [[Pacific Ocean]], at the southern end of the [[Clatsop Plains]], about {{convert|29|km|mi|abbr=on}} south of where the [[Columbia River]] empties into the Pacific. The city is developed on both sides of the [[Necanicum River]], which flows to the ocean at the city's northern edge. [[Tillamook Head]] towers over the southern edge of the city.

[[image:QUINAULT INDIANS ON THE BEACH OF THEIR RESERVATION ON THE PACIFIC COAST. THEY ARE HARVESTING RAZOR CLAMS FOR THE... - NARA - 545204.jpg|thumb|Harvesting razor clams]]

The geography associated with the gradual slope of the broad sandy beaches of [[Clatsop Spit]] provide excellent conditions for the formation of beds of millions of [[Pacific razor clam]]s annually. The razor clams attract thousands of visitors to Seaside Beach each year.<ref name ="clams">{{cite web|title=Oregon's Clams|url=http://www.clamdigging.info/Seaside.html|publisher=clamdigging.info|access-date=2016-04-22}}</ref> Waves attract surfers all year round from the challenging point break off the tip of Tillamook Head to the sandy shores at "the cove" parking lot at Ocean Vista Drive.<ref>{{Cite web|url=https://www.dailyastorian.com/news/point-break-offers-awesome-but-dangerous-surfing/article_df253fc8-e66c-5602-90ea-a9d5b4dca8a5.html|title=Point Break offers awesome, but dangerous surfing|last=Anderson|first=Don|website=The Astorian|language=en|access-date=2019-09-20}}</ref><ref>{{Cite web|url=https://www.seattletimes.com/life/outdoors/surfing-in-oregon-it-makes-sense-really/|title=Surfing in Oregon? It makes sense (really)|date=2012-08-22|website=The Seattle Times|language=en-US|access-date=2019-09-20}}</ref><ref>{{Cite news|url=https://www.wsj.com/articles/the-undiscovered-shore-1376671083|title=Surfing Oregon's North Coast|last=Burningham|first=Lucy|date=2013-08-16|work=Wall Street Journal|access-date=2019-09-20|language=en-US|issn=0099-9660}}</ref>

===Climate===
Seaside has an [[oceanic climate]] (Köppen ''Cfb''), typical [[Pacific Northwest]]  climate, bordering very closely on a [[warm-summer Mediterranean climate]] (Köppen ''Csb''). It receives rainy winters and mild-to-cool summers. Mean high temperature in the warmest month, August, is roughly {{convert|68|F|C}}. The warmest heatwaves, however, occur in September. The hottest day on record was {{convert|95|F|C}}, which occurred on both September 23, 1943 and September 24, 1974. The coldest temperature ever recorded was {{convert|5|F|C}} which occurred on December 8, 1972.

{{Weather box
|location=Seaside, Oregon (1991–2020 normals, extremes 1930&ndash;present)
|single line = Y 
|Jan record high F = 73
|Feb record high F = 77
|Mar record high F = 78
|Apr record high F = 86
|May record high F = 86
|Jun record high F = 85
|Jul record high F = 87
|Aug record high F = 89
|Sep record high F = 95
|Oct record high F = 92
|Nov record high F = 79
|Dec record high F = 71
|year record high F =

|Jan avg record high F = 61.6
|Feb avg record high F = 63.0
|Mar avg record high F = 66.5
|Apr avg record high F = 70.4
|May avg record high F = 73.9
|Jun avg record high F = 69.8
|Jul avg record high F = 73.6
|Aug avg record high F = 76.1
|Sep avg record high F = 82.1
|Oct avg record high F = 75.2
|Nov avg record high F = 63.4
|Dec avg record high F = 60.3
|year avg record high F = 86.0

|Jan high F = 51.8
|Feb high F = 52.6
|Mar high F = 54.1
|Apr high F = 56.2
|May high F = 59.7
|Jun high F = 62.1
|Jul high F = 65.0
|Aug high F = 66.4
|Sep high F = 66.6
|Oct high F = 61.6
|Nov high F = 55.1
|Dec high F = 51.2
|year high F =

|Jan mean F = 45.6
|Feb mean F = 45.5
|Mar mean F = 46.8
|Apr mean F = 49.0
|May mean F = 53.0
|Jun mean F = 56.2
|Jul mean F = 59.0
|Aug mean F = 60.0
|Sep mean F = 58.3
|Oct mean F = 53.6
|Nov mean F = 48.4
|Dec mean F = 44.8
|year mean F =

|Jan low F = 39.3
|Feb low F = 38.4
|Mar low F = 39.5
|Apr low F = 41.8
|May low F = 46.3
|Jun low F = 50.4
|Jul low F = 53.0
|Aug low F = 53.5
|Sep low F = 50.1
|Oct low F = 45.6
|Nov low F = 41.7
|Dec low F = 38.5
|year low F =

|Jan avg record low F = 27.6
|Feb avg record low F = 26.5
|Mar avg record low F = 28.9
|Apr avg record low F = 32.2
|May avg record low F = 36.3
|Jun avg record low F = 41.9
|Jul avg record low F = 45.6
|Aug avg record low F = 45.9
|Sep avg record low F = 40.3
|Oct avg record low F = 33.5
|Nov avg record low F = 28.9
|Dec avg record low F = 27.0
|year avg record low F = 23.0

|Jan record low F = 11
|Feb record low F = 9
|Mar record low F = 21
|Apr record low F = 24
|May record low F = 26
|Jun record low F = 36
|Jul record low F = 35
|Aug record low F = 32
|Sep record low F = 30
|Oct record low F = 24
|Nov record low F = 14
|Dec record low F = 5
|year record low F =

|precipitation colour = green
|Jan precipitation inch = 11.03
|Feb precipitation inch = 8.05
|Mar precipitation inch = 9.42
|Apr precipitation inch = 6.56
|May precipitation inch = 3.87
|Jun precipitation inch = 2.66
|Jul precipitation inch = 0.95
|Aug precipitation inch = 1.20
|Sep precipitation inch = 2.91
|Oct precipitation inch = 6.63
|Nov precipitation inch = 12.01
|Dec precipitation inch = 11.42
|year precipitation inch =

|unit precipitation days = 0.01 in
|Jan precipitation days = 21.3
|Feb precipitation days = 18.1
|Mar precipitation days = 20.7
|Apr precipitation days = 17.2
|May precipitation days = 13.6
|Jun precipitation days = 11.1
|Jul precipitation days = 6.7
|Aug precipitation days = 7.2
|Sep precipitation days = 8.6
|Oct precipitation days = 14.5
|Nov precipitation days = 20.3
|Dec precipitation days = 21.8

|Jan humidity = 81
|Feb humidity = 82
|Mar humidity = 81
|Apr humidity = 81
|May humidity = 81
|Jun humidity = 82
|Jul humidity = 83
|Aug humidity = 84
|Sep humidity = 82
|Oct humidity = 81
|Nov humidity = 82
|Dec humidity = 81
|year humidity =

|Jand sun = 3.9
|Febd sun = 3.9
|Mard sun = 5.6
|Aprd sun = 7.4
|Mayd sun = 8.3
|Jund sun = 8.9
|Juld sun = 9.8
|Augd sun = 10.0
|Sepd sun = 8.8
|Octd sun = 5.2
|Novd sun = 4.4
|Decd sun = 4.2
|yeard sun =

|Jan light = 9.1
|Feb light = 10.4
|Mar light = 12.0
|Apr light = 13.6
|May light = 15.0
|Jun light = 15.7
|Jul light = 15.3
|Aug light = 14.1
|Sep light = 12.5
|Oct light = 10.9
|Nov light = 9.5
|Dec light = 8.7
|year light =

|Jan uv = 3
|Feb uv = 2
|Mar uv = 3
|Apr uv = 3
|May uv = 4
|Jun uv = 4
|Jul uv = 4
|Aug uv = 4
|Sep uv = 4
|Oct uv = 3
|Nov uv = 2
|Dec uv = 2
|year uv =

|source 1 = NOAA<ref name= NOAA>{{cite web|url = https://www.ncei.noaa.gov/access/us-climate-normals/#dataset=normals-monthly&timeframe=30&station=USC00357641|title = NOAA NCEI U.S. Climate Normals Quick Access|publisher = [[National Oceanic and Atmospheric Administration]]|access-date = 2021-10-07}}</ref><ref>
{{cite web
|url = https://www.weather.gov/wrh/climate?wfo=pqr
|publisher = National Weather Service
|title = NOAA Online Weather Data – NWS Portland
|access-date = December 30, 2022
}}
</ref>
|source 2 = Weather Atlas (UV and humidity)<ref>{{cite web
| url = https://www.weather-atlas.com/en/oregon-usa/seaside-climate
| title = Climate and monthly weather forecast Seaside, OR
| access-date = August 17, 2022}}</ref>
|date=October 2021}}

===Tsunami inundation zone===
[[File:Tsunami evac sign Seaside Oregon.JPG|thumb|A tsunami evacuation sign in Seaside.]]
Part of Seaside is located in a tsunami inundation zone. Among other preparation, the City of Seaside has embarked on a program in which residents above the zone are asked to volunteer to store within their homes barrels of medical supplies, water purification systems, emergency rations, tarps, and radios, with each barrel having enough supplies to last 20 individuals for at least 3 days. As of January 2017, there are 119 barrels within volunteer households and a waiting list of interested households.<ref>[http://www.cityofseaside.us/Emergency%20Preparedness/Tsunami%20Barrel%20Program Tsunami Supply Barrel Program], City of Seaside.</ref>

Seismologists estimate that there is a one in three chance that Seaside will be hit by an earthquake and tsunami within the next fifty years.<ref name=New-Yorker-Kathryn-Schulz-November-4-2016>[http://www.newyorker.com/tech/elements/the-really-small-ones The Really Small Ones], ''New Yorker'', Kathryn Schulz, Nov. 4, 2016.</ref>  On Tues. Nov. 8, 2016, Seaside citizens voted 65% to 35% to issue $99.7 million in bonds to move the remaining three schools out of the tsunami inundation zone.<ref>{{cite news |author1=R.J. Marx |title=Seaside Voters Back Bond To Move Schools From Tsunami Zone |url=http://www.opb.org/news/series/election-2016/seaside-schools-tsunami-zone-vote-result/ |work=Oregon Public Broadcasting |agency=Daily Astorian |date=November 9, 2016 |archive-url=https://web.archive.org/web/20161110135120/http://www.opb.org/news/series/election-2016/seaside-schools-tsunami-zone-vote-result/ |archive-date=November 10, 2016 |location=Seaside, Oregon}} This article includes a photo from another school district entirely of a student taking cover under a desk during a tsunami drill.</ref>