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#atmosphericriver — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #atmosphericriver, aggregated by home.social.

  1. "‘Hurricane Hunter’ crew spent 6 weeks at PDX, studying atmospheric rivers" by Oregon Public Broadcasting OPB (PBS Portland) - Results from #NOAA 6-week deployment to Portland #KPDX from Feb 1 to Mar 15 of Hurricane Hunter Gulfstream IV jet "Gonzo" #N49RF is already showing scientific results. New insights to structures of storms is expected to help improve forecasts of #AtmosphericRiver events. opb.org/article/2026/04/19/pdx #aviation #avgeek #weather #PNW

  2. I got a picture of #NOAA Hurricane Hunter Gulfstream IV jet "Gonzo" #N49RF departing Portland Airport #KPDX at the end of what was a 6-week deployment to the Pacific Northwest to collect data on Pacific #AtmosphericRiver storms. It's now returning to its home base in Lakeland, Florida #KLAL. #aviation #avgeek #weather #PNW

  3. Now me is thanking past me for cleaning the downspouts on my house before this big rain hits us over the next three days. #VancouverIsland #PineappleExpress #AtmosphericRiver #pnw

  4. Deadly #Floods Due to #Levee Failures Reflect Need for #Infrastructure Investment

    Levees were never designed to handle extreme weather that is now more common due to climate change.

    By Farshid Vahedifard, December 29, 2025

    "In recent weeks, powerful #AtmosphericRiver storms have swept across #Washington, #Oregon and #California, unloading enormous amounts of rain. As rivers surged, they overtopped or breached multiple levees – those long, often unnoticed barriers holding #floodwaters back from homes and towns.

    "Most of the time, levees don’t demand attention. They quietly do their job, year after year. But when storms intensify, levees suddenly matter in a very personal way. They can determine whether a neighborhood stays dry or ends up underwater.

    "The damage in the West reflects a nationwide problem that has been building for decades. Across the U.S., levees are getting older while weather is getting more extreme. Many of these structures were never designed for the enormous responsibility they now carry.

    "As a civil engineer at Tufts University, I study water infrastructure, including the vulnerability of levees and strategies for making them more resilient. My research also shows that when levees fail, the consequences don’t fall evenly on the population."

    Read more:
    truthout.org/articles/deadly-f

    #ClimateChange #AtmosphericRivers #ExtremeRain #Flooding #ExtremeFloods #WhenTheLeveeBreaks

  5. Power came back on around noon and I got in the shower which slowly transitioned from between lukewarm and brisk pretty much the whole time. So, I didn't have to go to my friend's place for dinner (delicious sausage sauce pasta) and board games (Kill Doctor Lucky) whilst simultaneously greasy and flakey.

    I did need to bum a ride because the rain flooded our garage parking like always. I ordered some over-the-shoes rain covers for next time.

    #AtmosphericRiver #FlashFlood #ChristmasEve

  6. Power came back on around noon and I got in the shower which slowly transitioned from between lukewarm and brisk pretty much the whole time. So, I didn't have to go to my friend's place for dinner (delicious sausage sauce pasta) and board games (Kill Doctor Lucky) whilst simultaneously greasy and flakey.

    I did need to bum a ride because the rain flooded our garage parking like always. I ordered some over-the-shoes rain covers for next time.

    #AtmosphericRiver #FlashFlood #ChristmasEve

  7. Power came back on around noon and I got in the shower which slowly transitioned from between lukewarm and brisk pretty much the whole time. So, I didn't have to go to my friend's place for dinner (delicious sausage sauce pasta) and board games (Kill Doctor Lucky) whilst simultaneously greasy and flakey.

    I did need to bum a ride because the rain flooded our garage parking like always. I ordered some over-the-shoes rain covers for next time.

    #AtmosphericRiver #FlashFlood #ChristmasEve

  8. Power came back on around noon and I got in the shower which slowly transitioned from between lukewarm and brisk pretty much the whole time. So, I didn't have to go to my friend's place for dinner (delicious sausage sauce pasta) and board games (Kill Doctor Lucky) whilst simultaneously greasy and flakey.

    I did need to bum a ride because the rain flooded our garage parking like always. I ordered some over-the-shoes rain covers for next time.

  9. Excessive Rainfall Discussion

    NWS Weather Prediction Center College Park MD

    229 PM EST Mon Dec 22 2025

    Day 3
    Valid 12Z Wed Dec 24 2025 - 12Z Thu Dec 25 2025

    ...THERE IS A HIGH RISK FOR EXCESSIVE RAINFALL ACROSS SOUTHERN
    CALIFORNIA...

    2100 UTC UPDATE:

    The primary change to the previous day 3 Excessive Rainfall Outlook was to add a high risk area along the west to east Transverse Range region of Southern California after collaboration with WFO
    LOX. Anomalous 850-700 mb moisture flux...5+ standard deviations above the mean...will impact Southern CA late day 2 into day 3 ahead of the amplifying mid to upper level trof off the CA coast. The heavy rainfall totals for Southern CA will likely occur over an 18 hour period, with widespread 4-7 inch totals, with isolated max amounts of 9"+. Expect a well defined south to north precip band
    in this anomalous moisture flux axis with hourly rainfall rates of.50-1.5"+ likely. The potential for high hourly rainfall totals
    will accentuate runoff over soil that is relatively dry and or over recent burn scar areas. This will pose a significant threat of flash flooding, landslides, rock falls and mud slides. (...)

    #CAwx #AtmosphericRiver #SouthernCalifornia #LosAngelesCounty #VenturaCounty #SantaBarbaraCounty

  10. 2nd #AtmosphericRiver to flood #California with firehose of rain into Christmas

    #HeavyRain and #flooding problems experienced in the #Northwest in recent weeks from atmospheric rivers will shift farther south into California through Christmas Day with major travel disruptions and safety concerns.

    By Alex Sosnowski, AccuWeather senior meteorologist

    Published Dec 21, 2025

    "Two main atmospheric rivers will force copious amounts of #Pacific moisture into #California this week. Heavy rain with incidents of flooding, washouts and mudslides will expand and shift from north to south over the state, leading to travel disruptions at the very least and posing some risk to lives and property in extreme cases. The #SierraNevada will receive many feet of snow as freezing levels lower through the week and the region is affected by both atmospheric rivers.

    "The storms are hitting at a busy time of the year, with many traveling short and long distances, running errands and planning outdoor activities.

    "The first atmospheric river was already in progress and will continue to focus on Northern to Central California into Wednesday. A second atmospheric river is forecast to develop and concentrate on Central and Southern California from Tuesday night through Christmas Day. But even beyond Christmas, lingering moisture will lead to additional rounds of showers and mountain snow, according to AccuWeather.

    "Through Wednesday, much of the #Sacramento Valley and the #SanFrancisco Bay region will receive 2-4 inches of rain with locally higher amounts. The anticipated rainfall for San Francisco in the stormy pattern into next weekend will bring from one to two times the historical average for December.

    "On the west- and southwest-facing mountainsides of the Coast Ranges and the Sierra Nevada, 4-12 inches of rain will pour down with an AccuWeather Local StormMax™ of 20 inches.

    "At times, multiple inches of rain can fall in a matter of hours, overwhelming storm drains and causing small streams and short rivers to quickly overflow their banks. As the ground becomes saturated, the risk of debris flows, road washouts and hillside collapses will increase substantially.

    "From Tuesday night to early Friday, the second atmospheric river will spray rain of varying intensity throughout Central and Southern California.

    "A general 4-6 inches of rain is forecast to fall on the Los Angeles basin. Downtown, L.A. had seven times its historical average monthly rainfall for November with 5.53 inches. While no rain has fallen so far in L.A. this month, from two to three times December's average rainfall of 2.48 inches may occur with the stormy pattern from Tuesday to Saturday.

    "On the southwest-facing hillsides of the Transverse Ranges, 6-12 inches will pour down with an AccuWeather Local StormMax™ of 16 inches. Even in many desert areas of Southeastern California, between 0.25 of an inch to 1 inch of rain is expected to fall.

    "Just as with the first atmospheric river up north, rain will be drenching, leading to rapid urban flooding and flooding of small streams and short-run rivers, along with mudslides, washouts and the potential for hillside slides in Southern California. "

    Source:
    accuweather.com/en/severe-weat

    #ClimateChange #AtmosphericRivers #ExtremeWeather #ExtremeRain #Landslides #Flooding #ExtremeWx

  11. Some roads are slowly opening back up but the situation is quickly changing by the hour. Open roads might be temporarily closed again for avalanche control. Other areas are still on flood watch as rivers are still rising. Know before you go, check road reports often and be prepared for any eventuality.

    #atmosphericRiver #GetPrepared #winter

  12. So I guess Seattle, south of here, is going through some stuff. This atmospheric river is a nasty piece of weather. It's happening here too, but not anything as bad as there. We had wet snow last night that coated everything, then heavy rain just at the freezing temp so the snow stayed on the trees then broke them. Power was out for 8 hours today. This is why I prep. Genny going for the freezers and fridge, 15 gallons of gas in storage for the generator, campstove going, pantry full of food, wood stove as usual. Power is on now and all is well but the rain has been pounding down the whole day. My chickens are outraged, everything is mud. I spent a half an hour looking for the electric fence ground-out while collecting eggs and topping up their feed. Got the fence going again finally. I really hope it dries out for a few days before the deep cold sets in next week.
    #atmosphericRiver #climatechange #climateCrisis #Prepping #GetPrepared

  13. Tsk. I must charge up my LED camping lights. And I'll just bet Xfinity manages to go down tonight. Doug firs will fall. I worry episodically about the huge Doug fir in our backyard. Hopefully the wind will not be bad.
    #ExistentialDread #AtmosphericRiver #PNWweather 🫦🌧️☔⛈️😨

  14. RE: kolektiva.social/@MikeDunnAuth

    @ai6yr For the west coast residents, Ben's Disaster preparedness list needs to include a (inflatable) boat, though it would be hard to fit it into a stocking.

    #Disaster #Flood #Monsoon #River #Innundation #AtmosphericRiver