Author Topic: Natural Phenomena  (Read 122703 times)

montanaisaleg

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Re: Natural Phenomena
« Reply #15 on: July 19, 2011, 06:34:24 pm »
12th February 1915, Challenger, at Doula off Cameroon records a 'Tornado from NE' at 10am.  Wind 5-7, weather oR
You are about 5 days ahead of me on Challenger. :)

Helen J

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Re: Natural Phenomena
« Reply #16 on: July 19, 2011, 06:36:24 pm »
And you're probably about to overtake me as I'm getting very stiff and need to go and move and eat!  Only another 2% to go - I hope one of us manages to reach the magic 100% and we don't need to appeal for someone else to come on board and do that.

montanaisaleg

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Re: Natural Phenomena
« Reply #17 on: July 19, 2011, 06:38:28 pm »
Pfft..  "Move and eat."  Where are your priorities?! :)

Helen J

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Re: Natural Phenomena
« Reply #18 on: July 19, 2011, 07:51:18 pm »
I know, I know.  But I'm trying to stay in it for the long game, rather than keeling over from starvation or seizing up entirely - a feeble excuse I know, but there it is!   :D

Randi

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Re: Natural Phenomena
« Reply #19 on: July 20, 2011, 08:30:58 pm »
Avoca - 5 Nov 1917 - Noon position 36 35S, 73 03W

6:40am  Entered Fog bank.
10 to 11am  Fog.

Randi

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Re: Natural Phenomena
« Reply #20 on: July 29, 2011, 08:11:27 am »
Avoca - 28 Dec 1917 - 8:00am position 8 15S, 79 30W

0:50am Fog bank encountered
2:00am Fog bank cleared

4:55am Obs total eclipse of moon (27.21 56) G.M.T.

3:20pm  Ran into Fog bank.  Manned sounding machines + doubled lookouts.
« Last Edit: July 29, 2011, 05:51:50 pm by randi_2 »

jdulak

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Re: Natural Phenomena
« Reply #21 on: July 29, 2011, 09:36:15 pm »
HMS Newcastle, 19 December 1918, 32 23 S, 51 19 W (off the south coast of Brasil):

10:12"Passed through discoloured water."

http://oldweather.s3.amazonaws.com/ADM_53-52575/ADM%2053-52575-012_1.jpg

John Dulak

Janet Jaguar

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Re: Natural Phenomena
« Reply #22 on: July 30, 2011, 12:15:39 am »
Quote
10:12"Passed through discoloured water."

I can only think that was a very serious algae bloom.

bpb42

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Re: Natural Phenomena
« Reply #23 on: August 02, 2011, 08:28:32 pm »
http://oldweather.s3.amazonaws.com/ADM%2053-67714/ADM%2053-67714-005_0.jpg

HMS Virginian, 4th April 1916, off the coast of Iceland;- a force 7 gale, followed by a snowstorm,
then air temp' readings of 19F, or minus 7C, to end the day with.

Janet Jaguar

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Re: Natural Phenomena
« Reply #24 on: August 03, 2011, 12:09:09 am »
http://oldweather.s3.amazonaws.com/ADM%2053-67714/ADM%2053-67714-005_0.jpg

HMS Virginian, 4th April 1916, off the coast of Iceland;- a force 7 gale, followed by a snowstorm,
then air temp' readings of 19F, or minus 7C, to end the day with.

That's called a full-fledged blizzard.  They are bad enough to endure on land, I don't want to think of what that's like on a pitching and rolling ship! :o

bpb42

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Re: Natural Phenomena
« Reply #25 on: August 03, 2011, 08:20:52 pm »
Hi Janet,
              I did wonder if it was more like an ice storm then anything else ?
Whatever it's called, it's impressive the crew managed to take hourly readings.
Regards,
               Bernie

Janet Jaguar

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Re: Natural Phenomena
« Reply #26 on: August 04, 2011, 02:00:25 am »
It said "s" meaning snow, and wind was at a full gale; that's the formal definition of a blizzard.  They come in many variations, including (not at sea!) ground blizzards with blowing, not falling, snow.  Having ice mixed in would only make it worse.

They are all miserable storms.

cyzaki

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Re: Natural Phenomena
« Reply #27 on: August 04, 2011, 09:09:00 am »
They are all miserable storms.

I think anything more than a force 5 wind would be miserable at sea. Coming back from France we had force 3 wind, and the ferry was still rocking a fair amount.

Tegwen

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Re: Natural Phenomena
« Reply #28 on: August 04, 2011, 11:08:35 am »
The other serious concern in this type of weather is icing.

http://www.weather.nps.navy.mil/~psguest/polarmet/vessel/description.html

This is a comprehensive summary of the conditions needed for icing, and the weather in Virginians log seem perfect.

K

Bunting Tosser

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Re: Natural Phenomena
« Reply #29 on: August 04, 2011, 11:38:16 am »
"One hand for yourself and one for the ship."

Bit difficult to comply when you're wielding a dirty great wooden mallet. 
« Last Edit: August 04, 2011, 11:59:45 am by Bunting Tosser »