"Glaciologists monitoring the thaw have warned for years that some alpine towns and villages could be at risk, and Blatten is not even the first to be evacuated."
https://www.bbc.com/news/articles/cnv1evn2p2vo
Risk rises for #mudslides around #LACounty fire zones; prepare for worst-case scenario, officials warn
Alene Tchekmedyian, Rong-Gong Lin II, Melody Gutierrez, LA Times
January 26, 2025
"With more rain on the way, officials warned Sunday of an increasing risk of mudslides in #LosAngelesCounty's burn areas, with a 10% to 20% chance of significant #FlashFlooding and #DebrisFlows capable of damaging roads and homes in and around areas devastated by #wildfires.
"'This is the worst-case scenario to prepare for,' said Kristan Lund, a meteorologist with the National Weather Service in Oxnard.
"'We do have increasing concern for the #BurnScars,' Lund said. The charred footprint of the Eaton fire, which blackened more than 14,000 acres, is the most worrisome. 'These #FlashFloods and these debris flows could happen in and near or below these burn scars.'
"A #FloodWatch took effect at 10 a.m. Sunday and was set to continue through 4 p.m. Monday for the burned areas of the #EatonFire in the #Altadena and #Pasadena areas; the #PalisadesFire and #FranklinFires in the Pacific Palisades and Malibu areas; the Hughes fire around Lake Castaic; and the Bridge fire in the San Gabriel Mountains west and southwest of Wrightwood. The flood watch started six hours earlier than originally anticipated as rain began falling steadily around Los Angeles."
Read more:
https://www.aol.com/news/risk-rises-mudslides-around-l-170323295.html
#ClimateCrisis #CaliforniaFires #BurnScar #FlashFloodWarning #FloodDanger #Mudslides #CaliforniaWx
How wildfires leave communities vulnerable to flooding, mudslides for years
#Wildfires of every size leave behind something known as a #BurnScar, or the area of land charred by flames and left devoid of vegetation.
By Brian Lada
"#Flooding and #DebrisFlows can happen with little warning in burn scars and most commonly occur during a heavy thunderstorm or major #rainstorm.
"'Rainfall that would normally be absorbed will run off extremely quickly after a #wildfire, as burned soil can be as water repellent as pavement. As a result, much less rainfall [than normal] is required to produce a #FlashFlood,' The National Weather Service (#NWS) said."
Read more:
https://www.accuweather.com/en/weather-news/how-wildfires-leave-communities-vulnerable-to-flooding-mudslides-for-years/432537#google_vignette
#CaliforniaFires #BurnScars #FloodDanger
New Weather West post: "Widespread rain in SoCal to temporarily alleviate fire concerns by Sunday; SoCal drought still likely to expand rest of winter." I also discuss upcoming debris flow risk in fire zones. #CAwx #CAwater #CAfire #LAfires #DebrisFlows https://weatherwest.com/archives/43277
Postfire Debris-Flow Hazards
--
https://www.usgs.gov/programs/landslide-hazards/science/postfire-debris-flow-hazards <-- shared technical article / overview
--
http://alturl.com/po3yj <-- USGS Post-Fire Debris Flow Hazard Assessment Viewer
--
https://earthquake.usgs.gov/arcgis/rest/services/ls/ <-- Post-Fire Debris-Flow Hazards USGS spatial data / GIS Services
--
#GIS #spatial #mapping #USGS #LandslideHazardsProgram #NaturalHazards #3DEP #NGP #NationalGeospatialProgram #GIRT #GeospatialInformationResponseTeam #GIS #geology #hydrospatial #hydrology #landslides #debrisflows #fires #postfire #lidar #elevationdata #hazardassessments #preparedness #massmovement #engineeringgeology #risk #hazards #impacts #cost #economics #geomorphology #geomorphometry #spatialanalysis #spatiotemporal #remotesensing #soil #model #modeling #LosAngeles #LA #LosAngelesfires #California #wildfires #opendata
@USGS
USGS Experts Responding Simultaneously To Two Major #NaturalHazard s
--
http://alturl.com/4583e <-- link to article
--
http://alturl.com/uzjvr <-- USGS Landslide Observations Dashboard
--
#GIS #spatial #mapping #massmovement #landslide #risk #hazard #response #planning #spatialanalysis #hurricane #hurricanemilton #hurricanehelene #USA #water #hydrology #measurement #streamgauge #data #flooding #debrisflows #engineeringgeology #flooding #infrastructure #Appalachia #damage #cost #economy
@USGS
Climate Change Key Driver Of Catastrophic Impacts Of Hurricane Helene That Devastated Both Coastal And Inland Communities [technical report]
--
http://alturl.com/5n38k <-- shared technical report
--
#GIS #spatial #mapping #spatialanalysis #hurricane #hurricanehelene #spatiotemporal #risk #hazard #naturaldisaster #impact #climatechange #precipitation #seasurfacetemperature #Appalachia #damage #loss #infrastructure #deaths #rainfall #precipitation #flood #flooding #engineeringgeology #erosion #massmovement #mudslides #landslides #debrisflows #disastermanagement #prediction #mitigation #climatemodels #model #modeling #spatiotemporal #IRIS #winds #extremeweather #weather #storm #humanimpacts #costs #economy #SST #warning #weatherprediction #dams #reservoirs #loss #lossoflife
Yeesh, these fires keep getting so close to #monument #oregon. Hoping that the weather cooperates and we can start mapping potential #debrisflows
Comprehensive Risk Evaluation In Rapti Valley, Nepal - A Multi-Hazard Approach
--
https://doi.org/10.1016/j.pdisas.2024.100346 <-- shared paper
--
#GIS #spatial #mapping #rapti #lumbini #risk #hazard #nepal #suspectibility #vulnerability #flood #flooding #water #hydrology #multihazard #riskassessment #geology #engineeringgeology #massmovement #landslides #debrisflows #erosion #model #modeling #map #spatialanalysis #spatiotemporal #remotesensing #susceptibility #planning #development #mitigation #urbanplanning #naturalhazards #probability #geostatistics #forestfire #wildfire #bushfire #extremeweather #climatechange #vulnerability #physical #social #publicsafety #economic #environmental #riskzones
NASA’s Curiosity [Rover] Searches For New Clues About Mars’ Ancient Water [remote (!) sensing]
--
https://www.nasa.gov/missions/mars-science-laboratory/nasas-curiosity-searches-for-new-clues-about-mars-ancient-water/ <-- shared NASA technical article
--
https://youtu.be/XPmVS-ARNPM?si=dPCrznyEr4lmOT7g <-- shared immersive NADA 3D video/image
--
https://mars.nasa.gov/msl/home/ <-- Mars Curiosity Rover home page
--
https://mars.nasa.gov/msl/mission/where-is-the-rover/ <-- Mars Curiosity Rover current location map
--
#GIS #spatial #mapping #remotesensing #Mars #rover #curiosity #water #hydrology #landscape #flood #flooding #GedizVallas #river #erosion #massmovement #debrisflows #engineeringgeology #fluvial #geomorphology #FluvialGeomorphology #FGM #hydrodynamic #sediment #sedimentation #planet #extraterrestrial #solarsystem #spaceexploration #geomorphometry
@nasa
Flash flood alert for eastern Curry County and western Josephine County in #oregon for heavy rain on #SmithRiverComplex fire scars:
Expires on 10:00pm PDT November 4.
More info on Debris Flows/Landslides from Oregon DOGAMI:
https://www.oregon.gov/dogami/landslide/Pages/debrisflow.aspx
RT Diana Vieira
#DYK what happens to #soils after #wildfires?
Among others #postfire impacts affect #soilhealth, #waterquality, #biodiversity and can drive #flashfloods, #debrisflows, & #landslides
This and other infographics on the #FEMME project web https://femme.web.ua.pt/
#RoadtoSoilLaw https://t.co/ZNvz5CPvUu
: https://n.respublicae.eu/Dicasivi/status/1674714080408477697
Multimodal Multiscale Characterization Of Cascading Hazard On Mountain Terrain [Nepal]
--
https://doi.org/10.1080/19475705.2022.2162443 <-- shared paper
--
#GIS #spatial #mapping #Nepal #pluvial #precipitation #rain #snow #mountain #terrain #water #hydrology #sediment #risk #hazard #himalayas #hazardmitigation #riskmanagement #floods #flooding #massmovement #landslides #geomorphology #engineeringgeology #debrisflows #erosion #economy #infrastructure #publicsafety #model #modeling #prediction #engineering #solutions #hydroclimate #Melamchi #remotesensing #imagery #hydrodynamic #machinelearning #spatialanalysis #spatiotemporal #soil #saturation #sedimentcontrol #extremeweather #cascading #cumulative #environmental #events #impacts #humanimpact
Santa Barbara Fire Safe Council: Tomorrow's guest speaker is Larry Gurrola, Ph.D. His presentation is titled "Post-Fire Flood History, emphasizing Debris Flows and Landslide Dam Outbreak." To access this meeting, click this link https://sbfiresafecouncil.org/meetings/ (thanks @cookiesinheaven !) #wildfires #debrisflows #landslides
Greg Cocks 
