Hallelujah, it’s raining…fish? Fact or fiction: the science behind fish rain Ezra Baker...
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Transcript of Hallelujah, it’s raining…fish? Fact or fiction: the science behind fish rain Ezra Baker...
![Page 1: Hallelujah, it’s raining…fish? Fact or fiction: the science behind fish rain Ezra Baker Economics & French College of Arts & Sciences.](https://reader031.fdocuments.us/reader031/viewer/2022032005/56649d1f5503460f949f2686/html5/thumbnails/1.jpg)
Hallelujah, it’s raining…fish?
Fact or fiction: the science behind fish rain
Ezra BakerEconomics & French
College of Arts & Sciences
![Page 2: Hallelujah, it’s raining…fish? Fact or fiction: the science behind fish rain Ezra Baker Economics & French College of Arts & Sciences.](https://reader031.fdocuments.us/reader031/viewer/2022032005/56649d1f5503460f949f2686/html5/thumbnails/2.jpg)
StorytimeYoro, Honduras – 1850’s
Father José Manuel Subirana
Prayed for the poor
Fish fell from the sky!
Recurs every May-June
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Possible explanationsHeavy rains
Flash floods
Waterspouts
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Where we’re headedReview of tornadoes
Introduction to waterspouts
Waterspouts and fish rain
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Tornado reviewColumn of rapidly rotating air (65 – 280 mph)
Cyclonic rotation
Most ~100 yards
Ground speed about 30 mph
Most only a few minutes
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Tornado formationNot well understood
Any severe weather conditions
1: Horizontal rotating tube
2: Tilted vertically by updraft
3: Stretches downward
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What is a waterspout?Similar to tornado above water
5 – 100 m
Wind speeds up to 90 mph
Most tropical and sub-tropical
Do NOT suck up water
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Two typesTornadic
Same processes as land-based tornadoesCan originate on land
Non-tornadic (Fair-weather)Warm water heats air from belowAir becomes unstableRises and condensesVisible water is water vapor
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Researching waterspoutsInternational Centre for Waterspout Research
(ICWR)Founded 2008Wade Szilagyi
Szilagyi Scale[-10, 10]Positive number indicates waterspouts are likelyLikelihood increases approaching +10
Global Waterspout Mapping ProjectBegun 2011To understand global distribution of waterspouts
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But what about the fish?Small creatures can be sucked into the vortex
and deposited on land
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Do you buy it?If the water doesn’t get sucked up, why would the
fish?
Yoro 200 km from Atlantic Ocean
1970’s – National Geographic team found fish are blind
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Other reports of fish rainSri Lanka – 2012, 2014
Lajamanu, Australia – 2010
Kerala, India – 2008
Agusan del Sur, Philippines – 2012
Knighton, Wales – 2004
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TakeawaysWaterspouts are like tornadoes over water
Weaker (5 – 100 m, 90 mph) but still dangerous
Can be tornadic or non-tornadic
Visible water is from vapor, not the body of water below
Check out Yoro, because YOLO
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Works Cited http://www.atlasobscura.com/places/lluvia-de-peces-the-rain-of-
fish
http://www.earthsci.org/processes/weather/wea1/wea1.html
http://www.sundaytimes.lk/121223/news/raining-fishnfrogs-instead-of-proverbial-catsndogs-25769.html
http://www.livescience.com/37820-lluvia-de-peces-fish-rain.html
http://www.bbc.com/news/world-asia-27298939
http://archive.financialexpress.com/news/fish-rain-takes-kerala-villagers-by-surprise/272219
http://www.gmanetwork.com/news/story/244651/news/nation/it-s-raining-fish-it-s-normal
http://news.bbc.co.uk/2/hi/3582802.stm