nzucker Posted May 23, 2011 Share Posted May 23, 2011 12z ECM shows extreme cold in Antarctica, 850s around -48C: Vostok forecast, was -91F there earlier: http://classic.wunderground.com/cgi-bin/findweather/getForecast?query=Vostok,%20Antarctica&wuSelect=WEATHER GFS shows Antarctica reducing the global surface temperature anomaly significantly: http://www.coaps.fsu.edu/~maue/extreme/gfs/current/raw_temp_c.html Link to comment Share on other sites More sharing options...
tmagan Posted May 23, 2011 Share Posted May 23, 2011 03Z Monday obs. Link to comment Share on other sites More sharing options...
metalicwx366 Posted May 23, 2011 Share Posted May 23, 2011 Its -98 in Vostok now. Is that some kind of record? -98 °FClearHumidity:25%Dew Point:-106 °FWind:12 mphfrom the WSW Wind Gust:- Pressure: in (Falling) Visibility:12.0 milesElevation:11220 ft Link to comment Share on other sites More sharing options...
dtk Posted May 23, 2011 Share Posted May 23, 2011 Its -98 in Vostok now. Is that some kind of record? -98 °FClearHumidity:25%Dew Point:-106 °FWind:12 mphfrom the WSW Wind Gust:- Pressure: in (Falling) Visibility:12.0 milesElevation:11220 ft Not even (that) close (and according to the internets): The lowest reliably measure temperature on Earth of −89.2 °C (−128.6 °F) was in Vostok on 21 July 1983. Link to comment Share on other sites More sharing options...
PottercountyWXobserver Posted May 23, 2011 Share Posted May 23, 2011 Its -98 in Vostok now. Is that some kind of record? -98 °FClearHumidity:25%Dew Point:-106 °FWind:12 mphfrom the WSW Wind Gust:- Pressure: in (Falling) Visibility:12.0 milesElevation:11220 ft a long way to go for a record, it has been down to about -129°F before! Talk about extreme values Link to comment Share on other sites More sharing options...
icebreaker5221 Posted May 23, 2011 Share Posted May 23, 2011 Not even (that) close (and according to the internets): The lowest reliably measure temperature on Earth of −89.2 °C (−128.6 °F) was in Vostok on 21 July 1983. Yes, we're not even that close. HOWEVER, the record was in the peak SH winter. So nearly -100 F in May is nonetheless impressive! Link to comment Share on other sites More sharing options...
nzucker Posted May 23, 2011 Author Share Posted May 23, 2011 Yes, we're not even that close. HOWEVER, the record was in the peak SH winter. So nearly -100 F in May is nonetheless impressive! Antarctic temperatures only decrease slightly from May to mid-winter....there is a drop-off of a few degrees in the averages, but nothing nearly so dramatic as what we experience from mid-fall to winter in terms of differences in climo temperatures. I'm not really sure why this is. Link to comment Share on other sites More sharing options...
ineedsnow Posted May 23, 2011 Share Posted May 23, 2011 -102 holy **** Link to comment Share on other sites More sharing options...
Itunis Posted May 23, 2011 Share Posted May 23, 2011 Antarctic temperatures only decrease slightly from May to mid-winter....there is a drop-off of a few degrees in the averages, but nothing nearly so dramatic as what we experience from mid-fall to winter in terms of differences in climo temperatures. I'm not really sure why this is. Maybe it has something to do with the sun being completely below the horizon from late April to August. Solar radiation reaches its minimum (zero) by fall there, while in more temperate climes solar radiation levels bottom out at the solstice (with coldest temps lagging behind around a month or so). Link to comment Share on other sites More sharing options...
metalicwx366 Posted May 24, 2011 Share Posted May 24, 2011 Wow its -105.These temps aren't even forecasted. Temperature:-105 °FHumidity:24%Dew Point:-112 °FWind:9 mph from the WSW Wind Gust: -Pressure: in (Rising) Visibility:12.0 milesElevation:11220 ft Link to comment Share on other sites More sharing options...
hm8 Posted May 24, 2011 Share Posted May 24, 2011 Wow its -105.These temps aren't even forecasted. Temperature:-105 °FHumidity:24%Dew Point:-112 °FWind:9 mph from the WSW Wind Gust: -Pressure: in (Rising) Visibility:12.0 milesElevation:11220 ft Windchill is undefined http://www.srh.noaa.gov/ssd/html/windchil.htm Link to comment Share on other sites More sharing options...
NorEaster27 Posted May 24, 2011 Share Posted May 24, 2011 Wow its -105.These temps aren't even forecasted. Temperature:-105 °FHumidity:24%Dew Point:-112 °FWind:9 mph from the WSW Wind Gust: -Pressure: in (Rising) Visibility:12.0 milesElevation:11220 ft its also at 11k feet Link to comment Share on other sites More sharing options...
nzucker Posted May 24, 2011 Author Share Posted May 24, 2011 Maybe it has something to do with the sun being completely below the horizon from late April to August. Solar radiation reaches its minimum (zero) by fall there, while in more temperate climes solar radiation levels bottom out at the solstice (with coldest temps lagging behind around a month or so). This is probably the main reason...also, Vostok is pretty isolated from any bodies of water so ice formation wouldn't affect temperatures as much as in the Arctic where there is more exposure to seasonal ice. Currently -104F in Vostok as per the last update. 12z ECM at initialization shows 850s around -45C in the coldest areas of Antarctica. its also at 11k feet Yes, and the ice sheet gets even higher than that. Imagine what temperatures are like on the Vinson Massif which reaches 16,050'. They could easily be 15-20F colder than Vostok in elevated cols at like 15,000' but no one would know since there aren't any stations higher than Vostok, which is at 11,220'... Link to comment Share on other sites More sharing options...
Rascalz Posted May 24, 2011 Share Posted May 24, 2011 Windchill is undefined http://www.srh.noaa....ml/windchil.htm using this its -140F http://www.theweathernetwork.com/conversions/ Link to comment Share on other sites More sharing options...
Jebman Posted May 25, 2011 Share Posted May 25, 2011 I'd LOVE to go out on an epic Antarctic jebwalk at -100 fahrenheit. Now THAT would be a jebwalk to remember!!! Link to comment Share on other sites More sharing options...
A-L-E-X Posted May 25, 2011 Share Posted May 25, 2011 This is probably the main reason...also, Vostok is pretty isolated from any bodies of water so ice formation wouldn't affect temperatures as much as in the Arctic where there is more exposure to seasonal ice. Currently -104F in Vostok as per the last update. 12z ECM at initialization shows 850s around -45C in the coldest areas of Antarctica. Yes, and the ice sheet gets even higher than that. Imagine what temperatures are like on the Vinson Massif which reaches 16,050'. They could easily be 15-20F colder than Vostok in elevated cols at like 15,000' but no one would know since there aren't any stations higher than Vostok, which is at 11,220'... Vostok holds the world record for the coldest temperature..... something like -129.6 in July, perhaps they could challenge that record this summer (winter for them), but like you said, the temperatures don't fall that much between now and July. Do you recall what year that record is from? Link to comment Share on other sites More sharing options...
wxmx Posted May 25, 2011 Share Posted May 25, 2011 Vostok holds the world record for the coldest temperature..... something like -129.6 in July, perhaps they could challenge that record this summer (winter for them), but like you said, the temperatures don't fall that much between now and July. Do you recall what year that record is from? 1983 Link to comment Share on other sites More sharing options...
Riptide Posted May 25, 2011 Share Posted May 25, 2011 I'd LOVE to go out on an epic Antarctic jebwalk at -100 fahrenheit. Now THAT would be a jebwalk to remember!!! Link to comment Share on other sites More sharing options...
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