Arctic sea ice bottoms out near all-time low; August was Earth's 4th - 8th warmest

By: Dr. Jeff Masters , 6:11 PM GMT on September 17, 2011

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Arctic sea ice extent hit its minimum on September 9 this year, falling to its second lowest value since satellite measurements began in 1979, according to the National Snow and Ice Data Center . More than one third (35%) of the Arctic sea ice was missing this summer, compared to the 1979 - 2000 average. This is an area about the size of the Mediterranean Sea. The 2011 sea ice minimum was very close to the all-time record low set in 2007; in fact, the University of Bremen rated the 2011 loss the greatest on record. For the fourth consecutive year, and fourth time in recorded history, ice-free navigation was possible in the Arctic along the coast of Canada (the Northwest Passage), and along the coast of Russia (the Northeast Passage.) Mariners have been attempting to sail these waters since 1497.

While the record low sea ice year of 2007 was marked by a very unusual 1-in-20 year combination of weather conditions that favored ice loss (including clearer skies, favorable wind patterns, and warm temperatures), 2011's weather patterns were much closer to average. The fact we pretty much tied the record for most sea ice loss this year despite this rather ordinary weather is a result of the fact that large amounts of thicker, multi-year ice has melted or been flushed out of the Arctic since 2007. As a result of the loss of this old, thick ice, both 2010 and now 2011 set new records for the lowest volume of sea ice in the Arctic, according the University of Washington PIOMAS model. Given the very thin ice now covering most of the Arctic, we can expect truly dramatic sea ice loss the next time 1-in-10 year or 1-in-20 year warmth and sunshine invades the Arctic. We are definitely on pace to see the Arctic virtually sea ice-free in summer by 2030, as predicted by several leading Arctic sea ice scientists. I expect we'll see more than half of the Arctic ice gone and the North Pole liquid instead of solid by the summer of 2020, and probably sooner.


Figure 1. Arctic sea ice extent in 2011 (blue line) compared to the record low year of 2007 (dashed green line) and average (thick grey line.) Image credit: National Snow and Ice Data Center .

When was the last time the Arctic was this ice-free?
We can be sure the Northwest Passage was never open for ice-free navigation--particularly ice-free navigation for multiple years in a row--between 1900 and 2000, as we have detailed ice edge records from ships (Walsh and Chapman, 2001). It is very unlikely the Passage was open between 1497 and 1900, since this spanned a cold period in the northern latitudes known as "The Little Ice Age". Ships periodically attempted the Passage and were foiled during this period, and the native Inuit people have no historical tales of the Passage being navigable at any time in the past.

The Northwest passage may have been open multiple years in a row for ice-free navigation at some period during the Medieval Warm Period, between 1000 and 1300 AD. A better candidate was the period 6,000 - 8,500 years ago, when the Earth's orbital variations brought more sunlight to the Arctic in summer than at present. Funder and Kjaer (2007) found extensive systems of wave generated beach ridges along the North Greenland coast that suggested the Arctic Ocean was ice-free in the summer for over 1,000 years during that period. Prior to that, the next likely time was during the last inter-glacial period, 120,000 years ago. Arctic temperatures then were 2 - 3°C higher than present-day temperatures, and sea levels were 4-6 meters higher.

However, it is possible that the recent summer low-ice conditions in the Arctic are unprecedented for the past 800,000 years, according to a 2011 press release by Project CLAMER, a European group dedicated to climate change and European marine ecosystem research. They found that a tiny species of plankton called Neodenticula seminae that went extinct in the North Atlantic 800,000 years ago has become a resident of the Atlantic again, having drifted from the Pacific through the Arctic Ocean thanks to dramatically reduced polar ice. The 1999 discovery represents "the first evidence of a trans-Arctic migration in modern times" related to plankton, according to the UK-based Sir Alister Hardy Foundation for Ocean Science, whose researchers warn that "such a geographical shift could transform the biodiversity and functioning of the Arctic and North Atlantic marine ecosystems."

It is possible we'll have a better idea of historical ice-free conditions in the Arctic in the next few years. A new technique that examines organic compounds left behind in Arctic sediments by diatoms that live in sea ice give hope that a detailed record of sea ice extent extending back to the end of the Ice Age 12,000 years ago may be possible (Belt et al., 2007). The researchers are studying sediments along the Northwest Passage in hopes of being able to determine when the Passage was open during the past 12,000 years.

References
Belt, S.T., G. Masse, S.J. Rowland, M. Poulin, C. Michel, and B. LeBlanc, "A novel chemical fossil of palaeo sea ice: IP25", Organic Geochemistry, Volume 38, Issue 1, January 2007, Pages 16-27.

Funder, S. and K.H. Kjaer, 2007, "A sea-ice free Arctic Ocean?", Geophys. Res. Abstr. 9 (2007), p. 07815.

Walsh, J.E and W.L.Chapman, 2001, "Twentieth-century sea ice variations from observational data", Annals of Glaciology, 33, Number 1, January 2001 , pp. 444-448.

August 2011: Earth's 4th - 8th warmest on record
August 2011 was the globe's 8th warmest August on record, according to the National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC). NASA's Goddard Institute for Space Studies rated August the 4th warmest on record. Land temperatures during August were the 2nd warmest on record, and ocean temperatures were the 12th warmest on record. Ocean temperatures in the Atlantic Ocean's Main Development Region (MDR) for hurricanes, from the coast of Africa to the coast of Central America between 10°N and 20°N latitude, were 0.8°C above average, the 4rd warmest August on record. Global satellite-measured temperatures for the lowest 8 km of the atmosphere were the 6th or 3rd warmest in the 34-year record, according to Remote Sensing Systems and the University of Alabama Huntsville (UAH). For more details on global extremes during August, see the details from weather historian Christopher C. Burt.


Figure 2. Departure of temperature from average for August 2011. Image credit: National Climatic Data Center (NCDC).

Maria hits Newfoundland
Hurricane Maria hit Newfoundland, Canada yesterday afternoon near 3:30 pm local time as a Category 1 hurricane with 75 mph winds. However, the hurricane's strongest winds were over water, and the storm brought very little in the way of strong winds or heavy rain to the island. Cape Race at the southeast tip of Newfoundland saw sustained winds of 41 mph, gusting to 54 mph at 3:30 pm Friday as the center of the storm passed. Winds in the capital of St. John's peaked at 37 mph, gusting to 46 mph, at 10:30 am local time. Maria's strike makes this Newfoundland's second consecutive year with a hurricane strike, something that has never occurred since hurricane record keeping began in 1851. Last year, Hurricane Igor killed one person on Newfoundland, and damage exceeded $100 million, making Igor the most damaging tropical cyclone in Newfoundland history.


Figure 3. Satellite image of Hurricane Maria taken at 12:15 pm EDT September 16, 2011. At the time, Maria was a Category 1 hurricane with 75 mph winds. Image credit: NOAA Environmental Visualization Lab.

Invest 97L
For the first day since August 18, we don't have a named storm in the Atlantic. However, we have a new area to watch. A tropical wave that moved off the coast of Africa Friday and is now 300 miles south of the Cape Verde Islands is moving west at 10 - 15 mph. The wave has developed a modest amount of heavy thunderstorm activity and spin, and has been designated Invest 97L by NHC. Wind shear as diagnosed by the SHIPS model is light, 5 - 10 knots, and is predicted to stay light to moderate through Tuesday morning. Ocean temperatures are 27.5°C, one degree above the threshold typically needed for a tropical storm to spin up. Water vapor satellite images show 97L is embedded in a moist environment.

Most of the models develop 97L into a tropical depression by Tuesday; NHC gave the disturbance a 20% chance of developing into a tropical depression by Monday in their 2 pm Tropical Weather Outlook. 97L should head west or west-northwest towards the Lesser Antilles over the next six days, and could arrive in the islands as early as Friday--though most of the models predict a later arrival. It is likely 97L will encounter the usual troubles storms this year have had with wind shear and dry air on the long trek across the Atlantic.

I'll have a new post on Monday, when I'll discuss the long-range hurricane outlook for the rest of September.

Jeff Masters

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Quoting indianrivguy:
Good morning gang!
On the subject of Hurricanes, The U defeated the buckeyes last night MUCH to my surprise. It will sure make life easier given I work with a psycho buckeye fan.

Today is the anniversary of the 1926 Miama hurricane. It was Mikatnight who reminded me yesterday about this, so blame HIM for all my posts on this subject :)

It was a killer and it finished breaking the land boom that had been going on for years there.

Miama Beach. That is Indian Creek behind the ocean beach


Bakers Haulover bridge "before" Notice the rock jetty.


after, notice the rock jetty and a lot of ocean beach is gone. Andrew took the fishing pier, but did not damage the inlet like this, but it was compact and came in further south.






Have a great morning, I am off to open the Snook Nook with Henry!


Thanks i r guy - I can see haulover bridge and indian creek island from my condo. I hope history doesn't repeat itself. to think of the damage it would do today - scary
Member Since: Posts: Comments:
Quoting LargoFl:
I have a question on the artic ice melting so much, does that Raise the sea levels alot around the world? and if so, would that cause, say loss of beach land? or even swamping small islands? would it be That great a raise in levels???

Since ice at the North Pole is floating atop the Arctic Sea, its loss only negligibly affects sea levels. It's a decrease (or increase) in land-based ice--such as that found on Antarctica or Greenland--that most directly affects those levels.

On an entirely different note, ATCF just dropped 97L. No surprise there:

invest_DEACTIVATE_al972011.ren
Member Since: Posts: Comments:
Quoting thesailer99:
With reference to the ice cap. Although I admit is becoming unlikely I still think that the two hurricanes to go North could put so much heat into the region that we could lose more ice. It took a double dip last year so it could happen.
I have a question on the artic ice melting so much, does that Raise the sea levels alot around the world? and if so, would that cause, say loss of beach land? or even swamping small islands? would it be That great a raise in levels???
Member Since: Posts: Comments:
Quoting JLPR2:
AL, 98, 2011091806, , BEST, 0, 107N, 352W, 25, 1009, LO,

Moving... north? with a drop in 1mb in pressure and an increase to 30mph in the winds.

Meanwhile 97L remains the same:
AL, 97, 2011091806, , BEST, 0, 116N, 239W, 20, 1010, LO,
Ty for the update and good morning
Member Since: Posts: Comments:
Quoting indianrivguy:
Good morning gang!
On the subject of Hurricanes, The U defeated the buckeyes last night MUCH to my surprise. It will sure make life easier given I work with a psycho buckeye fan.

Today is the anniversary of the 1926 Miama hurricane. It was Mikatnight who reminded me yesterday about this, so blame HIM for all my posts on this subject :)

It was a killer and it finished breaking the land boom that had been going on for years there.

Miama Beach. That is Indian Creek behind the ocean beach


Bakers Haulover bridge "before" Notice the rock jetty.


after, notice the rock jetty and a lot of ocean beach is gone. Andrew took the fishing pier, but did not damage the inlet like this, but it was compact and came in further south.






Have a great morning, I am off to open the Snook Nook with Henry!
good morning and ty for those pics, amazing how hurricanes can change the landscape so dramaticaly huh
Member Since: Posts: Comments:
Member Since: Posts: Comments:
Quoting MiamiHurricanes09:
98L is likely to become a tropical cyclone before 97L...if either ever become one. Not only better organized convectively (which can be attributed somewhat to the fact that it's still embedded within the ITCZ), but also has a better defined surface circulation.

98L will probably pose a threat to the Lesser Antilles and the eastern Greater Antilles, so I'd keep a close eye on this one in Puerto Rico.


Good morning.

Yeah,once again in the 2011 seasson.
Member Since: Posts: Comments:
Good morning gang!
On the subject of Hurricanes, The U defeated the buckeyes last night MUCH to my surprise. It will sure make life easier given I work with a psycho buckeye fan.

Today is the anniversary of the 1926 Miama hurricane. It was Mikatnight who reminded me yesterday about this, so blame HIM for all my posts on this subject :)

It was a killer and it finished breaking the land boom that had been going on for years there.

Miama Beach. That is Indian Creek behind the ocean beach


Bakers Haulover bridge "before" Notice the rock jetty.


after, notice the rock jetty and a lot of ocean beach is gone. Andrew took the fishing pier, but did not damage the inlet like this, but it was compact and came in further south.






Have a great morning, I am off to open the Snook Nook with Henry!
Member Since: Posts: Comments:
Quoting Skyepony:


Sorry..left out the word makes.. China makes..produces more solar panels & wind turbines than any other country. China is winning (& beating America) in economic & cutting edge tecnology terms in producing panels & turbines.


I studied at Tsinghua University in Beijing last year, and there was no evidence of solar panels or wind turbines. However, the smog was so bad that I had to go to the hospital within 2 weeks of arriving. Most of us (from UNCC, FAU, UPRM (Mayaguez) were sick from the smog. Not sure where they are stashing the green technology :)

Although I must say, there was a noticeably less consumption of paper (no paper towels, etc), and the "A/C" wasn't really cold. No freon. A/C just meant indoors was about 10 degrees cooler than outdoors.

Odd balance of things. I didn't even know we were near mountains until I saw them one rare clear day a good 3-4 weeks into my stay.

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618. JLPR2
98L, what seems like another disturbance to the NW of 98L, 97L barely surviving and more to come from Africa.



And with that I'm off.
Goodnight/morning all!
Member Since: September 4, 2007 Posts: 7 Comments: 8483
Quoting Barkeep1967:
I love the agenda. check the ice levels at the South pole. Let Al Gore lead you ? Geesh

I do not deny there is a problem but I also know in the 70's there was ice age forthcoming. The over hype of this has become beyond ridiculous. Sorry Dr M but Dr Gray and Steven Hawking 2 of the smartest men on the planet disagree with you.

Please use your own brain and do not be a lemming people. So many untruths are being used to further an agenda it is pathetic.
My $ are gone from this site. I can deal with trolls but the ridiculous absolute GW truth is too much.


Stephen Hawking doesn't say a lot about GW as it is not his field, but the one comment he made stated that he believed 'it is a big threat' or words to that effect.

Gray is known for his skepticism, sure.

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615. JLPR2
SHIPS turns 98L into a tropical storm in 18hrs.

SHIPS 06z
Member Since: September 4, 2007 Posts: 7 Comments: 8483
614. JLPR2
AL, 98, 2011091806, , BEST, 0, 107N, 352W, 25, 1009, LO,

Moving... north? with a drop in 1mb in pressure and an increase to 30mph in the winds.

Meanwhile 97L remains the same:
AL, 97, 2011091806, , BEST, 0, 116N, 239W, 20, 1010, LO,
Member Since: September 4, 2007 Posts: 7 Comments: 8483
Quoting beell:
Oh yeah, I forgot. I quit WU.






me too
Member Since: Posts: Comments:
612. JLPR2
The bigger picture is a little surprising. Hadn't realized 98L was this big.
Member Since: September 4, 2007 Posts: 7 Comments: 8483
Looks like the CV season is back into gear.
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610. JLPR2
Quoting MiamiHurricanes09:
98L is likely to become a tropical cyclone before 97L...if either ever become one. Not only better organized convectively (which can be attributed somewhat to the fact that it's still embedded within the ITCZ), but also has a better defined surface circulation.

98L will probably pose a threat to the Lesser Antilles and the eastern Greater Antilles, so I'd keep a close eye on this one in Puerto Rico.


I always do. :)
Member Since: September 4, 2007 Posts: 7 Comments: 8483
Quoting JLPR2:


Oscat caught the western half of 97L and the eastern part of 98L.
98L is likely to become a tropical cyclone before 97L...if either ever become one. Not only better organized convectively (which can be attributed somewhat to the fact that it's still embedded within the ITCZ), but also has a better defined surface circulation.

98L will probably pose a threat to the Lesser Antilles and the eastern Greater Antilles, so I'd keep a close eye on this one in Puerto Rico.
Member Since: Posts: Comments:
Quoting Tazmanian:
night all going River rafting sunday for the 1st time in my life lol have a good night


Have fun!
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Quoting Skyepony:
DJMedik91~ East central FL & ~2000sq'. It's what I'd call crappy '80s construction..never thought I'd get the bill this low. Power bill seemed reasonable around ~$250 for an August bill til those 'canes in 2004. Wrecked havoc on the ducts, insulation, caulking around around everything..by the next summer, including a rate hike the August powerbill was pushing $400 & it was still 80º in here with the AC struggling. Brought it down to $120 or so the last several Aug with the new efficient AC & ducts, re-caulked & rearranged insulation. I think putting shade screen over a few skylights & insulating a few key curtains recently maybe saving me another $40+ a summer month. Plugging the crockpot in on the back porch where it's not battling with the AC maybe helping too. I've been amazed at how a few & sometimes really cheap investments slash the powerbill. They pay for themselves & pay you. It's never been colder in here, drying (less loads of) clothes in the (new bigger) dryer (that already payed for itself)..for less than $70 during a pretty hot August is sweet.


Wow! Never thought so little could make such a difference.
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606. ryang
Shear will be very favorable for 98L

36H



48H

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night all going River rafting sunday for the 1st time in my life lol have a good night
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604. ryang
Note how slow 98L is moving. That big ULL to it's north may be creating the weak steering currents. jmo
Member Since: Posts: Comments:
ABNT20 KNHC 180535
TWOAT

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT SUN SEP 18 2011

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

A BROAD AREA OF LOW PRESSURE LOCATED OVER THE CENTRAL TROPICAL
ATLANTIC ABOUT MIDWAY BETWEEN THE LESSER ANTILLES AND AFRICA IS
PRODUCING A LARGE AREA OF CLOUDINESS AND THUNDERSTORMS.
ENVIRONMENTAL CONDITIONS ARE FAVORABLE FOR GRADUAL DEVELOPMENT OF
THIS LARGE DISTURBANCE OVER THE NEXT FEW DAYS AS IT MOVES
WESTWARD AT 5 TO 10 MPH. THIS SYSTEM HAS A LOW CHANCE...20
PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

AN ELONGATED AREA OF LOW PRESSURE IS LOCATED ABOUT 300 MILES SOUTH
OF THE CAPE VERDE ISLANDS. THIS SYSTEM HAS CHANGED LITTLE AND
DEVELOPMENT...IF ANY...SHOULD BE SLOW TO OCCUR AS IT INTERACTS WITH
A LARGER DISTURBANCE TO ITS SOUTHWEST. THIS SYSTEM HAS A LOW
CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE
NEXT 48 HOURS AS MOVES WEST-NORTHWESTWARD AT 10 TO 15 MPH.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
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GFS pulls the storm out of the caribbean at truncation .. I dont buy it =P
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601. JLPR2


Oscat caught the western half of 97L and the eastern part of 98L.
Member Since: September 4, 2007 Posts: 7 Comments: 8483
Good night, everyone. May your weather be what you need it to be.

I leave you with a song that Robert Plant wrote, in memory of his son's sudden death. To all of our children, while they are still with us and we are with them.

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98L LETS GOOOOO
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guys i think its safe too say that 97L RIP


98L is the one too watch
Member Since: Posts: Comments:
With reference to the ice cap. Although I admit is becoming unlikely I still think that the two hurricanes to go North could put so much heat into the region that we could lose more ice. It took a double dip last year so it could happen.
Member Since: Posts: Comments:
Quoting JLPR2:




Interesting week ahead with 98L approaching the lesser antilles! Will it do more than what IRENE and MARIA did to them......... We should know in a few days !
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595. ryang
00Z GFS takes 98L through the Windward islands...I'll be watching closely
Member Since: Posts: Comments:
594. JLPR2
Quoting SLU:
988

WHXX01 KWBC 180439

CHGHUR

TROPICAL CYCLONE GUIDANCE MESSAGE

NWS NATIONAL HURRICANE CENTER MIAMI FL

0439 UTC SUN SEP 18 2011



DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.

PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE

AND SUBTROPICAL CYCLONE INFORMATION.



ATLANTIC OBJECTIVE AIDS FOR



DISTURBANCE INVEST (AL982011) 20110918 0000 UTC



SHIPS likes 98L, a hurricane at the end of the run and really dislikes 97L.
Member Since: September 4, 2007 Posts: 7 Comments: 8483
593. SLU
988

WHXX01 KWBC 180439

CHGHUR

TROPICAL CYCLONE GUIDANCE MESSAGE

NWS NATIONAL HURRICANE CENTER MIAMI FL

0439 UTC SUN SEP 18 2011



DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.

PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE

AND SUBTROPICAL CYCLONE INFORMATION.



ATLANTIC OBJECTIVE AIDS FOR



DISTURBANCE INVEST (AL982011) 20110918 0000 UTC



...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...

110918 0000 110918 1200 110919 0000 110919 1200



LAT LON LAT LON LAT LON LAT LON

BAMS 10.4N 35.2W 10.9N 36.5W 11.3N 37.7W 11.5N 38.9W

BAMD 10.4N 35.2W 10.8N 36.3W 11.1N 37.3W 11.4N 38.3W

BAMM 10.4N 35.2W 10.7N 36.4W 10.9N 37.5W 11.0N 38.5W

LBAR 10.4N 35.2W 10.8N 35.9W 11.3N 36.9W 11.8N 38.4W

SHIP 20KTS 24KTS 30KTS 39KTS

DSHP 20KTS 24KTS 30KTS 39KTS



...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...

110920 0000 110921 0000 110922 0000 110923 0000



LAT LON LAT LON LAT LON LAT LON

BAMS 11.7N 40.4W 12.2N 44.5W 12.3N 49.7W 12.2N 55.0W

BAMD 11.7N 39.5W 12.6N 42.9W 13.4N 47.1W 14.4N 51.4W

BAMM 10.9N 39.6W 11.0N 42.9W 11.3N 46.8W 12.2N 50.9W

LBAR 12.8N 40.4W 15.0N 45.0W 17.6N 50.5W 19.6N 55.5W

SHIP 48KTS 65KTS 68KTS 66KTS

DSHP 48KTS 65KTS 68KTS 66KTS



...INITIAL CONDITIONS...

LATCUR = 10.4N LONCUR = 35.2W DIRCUR = 275DEG SPDCUR = 1KT

LATM12 = 10.0N LONM12 = 35.9W DIRM12 = 71DEG SPDM12 = 5KT

LATM24 = 9.9N LONM24 = 36.9W

WNDCUR = 20KT RMAXWD = 60NM WNDM12 = 20KT

CENPRS = 1010MB OUTPRS = 1013MB OUTRAD = 175NM SDEPTH = S

RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM



$$

NNNN
Member Since: July 13, 2006 Posts: 12 Comments: 4788
looks like mode runs drop 97L


Member Since: Posts: Comments:
Quoting Skyepony:
DJMedik91~ East central FL & ~2000sq'. It's what I'd call crappy '80s construction..never thought I'd get the bill this low. Power bill seemed reasonable around ~$250 for an August bill til those 'canes in 2004. Wrecked havoc on the ducts, insulation, caulking around around everything..by the next summer, including a rate hike the August powerbill was pushing $400 & it was still 80º in here with the AC struggling. Brought it down to $120 or so the last several Aug with the new efficient AC & ducts, re-caulked & rearranged insulation. I think putting shade screen over a few skylights & insulating a few key curtains recently maybe saving me another $40+ a summer month. Plugging the crockpot in on the back porch where it's not battling with the AC maybe helping too. I've been amazed at how a few & sometimes really cheap investments slash the powerbill. They pay for themselves & pay you. It's never been colder in here, drying (less loads of) clothes in the (new bigger) dryer (that already payed for itself)..for less than $70 during a pretty hot August is sweet.


Ouch! I'm in Tampa and my house is almost built. It's supposed to be better in regards to AC since almost every room has its own return to the main AC system. My new house is 2400 sq. ft. and I pray my electric bill is lower than.$200.

Fortunately for us in FL, we don't use the heat too much in winter. My power bills in Fairfax, VA were much higher than down here.
Member Since: Posts: Comments:
Does the latest GFS make sense to anyone. Would a system that weak pull up that hard north? I don't see a trough pulling it up.
Member Since: Posts: Comments:
589. JLPR2
97L is on life support, 98L off to a good start.

Member Since: September 4, 2007 Posts: 7 Comments: 8483
588. Skyepony (Mod)
Quoting rv1pop:

We use black poly pipe in a flat coil on the roof into an old hot water tank. You can let gravity circulate it or use small 12v pump with a solar panel. NSF poly is more expensive than utility grade and is only worth it when the water temp gets so high that you get steam .... quite often when the out door temp goes over 100 degrees. check valves and pressure relief valves are a MUST. I have installed systems for other, but have not yet done one for myself as I do not yet have HW storage.
I can see I or someone else needs to do a solar blog here with emergency preparedness. -- We are 24/7 off grid - emergency prepared. Just got off a week of level II evacuation, because of a rather large and devastating wild fire. Skye--- bury a battery box at least 16 inches deep (vented and with a cover) for safety. PLEASE. The hydrogen gas generated will rise out of the box, but much less chance of damaging explosion.


Thanks!
Member Since: August 10, 2005 Posts: 161 Comments: 37158
587. JLPR2
Quoting ryang:
98L...

BEGIN
NHC_ATCF
invest_al982011.invest
FSTDA
R
U
040
010
0000
201109180437
NONE
NOTIFY=ATRP
END
INVEST, AL, L, , , , , 98, 2011, DB, O, 2011091800, 9999999999, , , , , , METWATCH, , AL982011
AL, 98, 2011091700, , BEST, 0, 99N, 369W, 15, 1011, DB, 0, , 0, 0, 0, 0,
AL, 98, 2011091706, , BEST, 0, 99N, 364W, 15, 1011, DB, 0, , 0, 0, 0, 0,
AL, 98, 2011091712, , BEST, 0, 100N, 359W, 20, 1010, LO, 0, , 0, 0, 0, 0,
AL, 98, 2011091718, , BEST, 0, 102N, 355W, 20, 1010, LO, 0, , 0, 0, 0, 0,
AL, 98, 2011091800, , BEST, 0, 104N, 352W,


Member Since: September 4, 2007 Posts: 7 Comments: 8483
586. Skyepony (Mod)
Quoting sunlinepr:


Sounds very interesting... can you share and post that project in your blog?

My wife and I are looking to learn more about Green energy projects... cutting down expenses is more viable now with new technologies...


I've meant to & hadn't got to it. It's a homemade panel wired right into dollar store personal fan with the batteries removed. When the sun is out the fan comes on. I may have $5.00 in the whole set up. & may add another panel, another fan, battery & LED light.

YouTube is amazing for sharing all the how toos. I buy broken cells & such from SiliconSolar.com.
Member Since: August 10, 2005 Posts: 161 Comments: 37158
Member Since: September 16, 2010 Posts: 0 Comments: 1492
584. ryang
98L...

BEGIN
NHC_ATCF
invest_al982011.invest
FSTDA
R
U
040
010
0000
201109180437
NONE
NOTIFY=ATRP
END
INVEST, AL, L, , , , , 98, 2011, DB, O, 2011091800, 9999999999, , , , , , METWATCH, , AL982011
AL, 98, 2011091700, , BEST, 0, 99N, 369W, 15, 1011, DB, 0, , 0, 0, 0, 0,
AL, 98, 2011091706, , BEST, 0, 99N, 364W, 15, 1011, DB, 0, , 0, 0, 0, 0,
AL, 98, 2011091712, , BEST, 0, 100N, 359W, 20, 1010, LO, 0, , 0, 0, 0, 0,
AL, 98, 2011091718, , BEST, 0, 102N, 355W, 20, 1010, LO, 0, , 0, 0, 0, 0,
AL, 98, 2011091800, , BEST, 0, 104N, 352W,
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:)))

Member Since: September 16, 2010 Posts: 0 Comments: 1492
582. Skyepony (Mod)
DJMedik91~ East central FL & ~2000sq'. It's what I'd call crappy '80s construction..never thought I'd get the bill this low. Power bill seemed reasonable around ~$250 for an August bill til those 'canes in 2004. Wrecked havoc on the ducts, insulation, caulking around around everything..by the next summer, including a rate hike the August powerbill was pushing $400 & it was still 80º in here with the AC struggling. Brought it down to $120 or so the last several Aug with the new efficient AC & ducts, re-caulked & rearranged insulation. I think putting shade screen over a few skylights & insulating a few key curtains recently maybe saving me another $40+ a summer month. Plugging the crockpot in on the back porch where it's not battling with the AC maybe helping too. I've been amazed at how a few & sometimes really cheap investments slash the powerbill. They pay for themselves & pay you. It's never been colder in here, drying (less loads of) clothes in the (new bigger) dryer (that already payed for itself)..for less than $70 during a pretty hot August is sweet.
Member Since: August 10, 2005 Posts: 161 Comments: 37158
Doctor Master's words: "Its likely 97L will encounter the usual troubles storms this year have had with wind shear and dry air on the long trek across the atlantic". So this year is the year of wind shear and dry air but we have had lots of weak systems and a couple three cat 2 and 1 cat 3, close to four. So lets see what happened in what is left of this month.
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Quoting Skyepony:
I set up the chicken coop for $.45 a watt piecing broken cells. It would have cost me more in initial investment to run power to it. .....


Sounds very interesting... can you share and post that project in your blog?

My wife and I are looking to learn more about Green energy projects... cutting down expenses is more viable now with new technologies...
Member Since: August 2, 2010 Posts: 21 Comments: 9690
Quoting jpsb:
I'll have to do the math on it. I would think a 20 gallon reserve of hot water would be ok? That means the system must hold 3 cubic feet of water which mean 900 feet of 3/4 inch pvc painted black. hmmmm, I am not liking this. lol

We use black poly pipe in a flat coil on the roof into an old hot water tank. You can let gravity circulate it or use small 12v pump with a solar panel. NSF poly is more expensive than utility grade and is only worth it when the water temp gets so high that you get steam .... quite often when the out door temp goes over 100 degrees. check valves and pressure relief valves are a MUST. I have installed systems for other, but have not yet done one for myself as I do not yet have HW storage.
I can see I or someone else needs to do a solar blog here with emergency preparedness. -- We are 24/7 off grid - emergency prepared. Just got off a week of level II evacuation, because of a rather large and devastating wild fire. Skye--- bury a battery box at least 16 inches deep (vented and with a cover) for safety. PLEASE. The hydrogen gas generated will rise out of the box, but much less chance of damaging explosion.
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Quoting hurricanejunky:


Yeah, the memory leaks in Firefox are the biggest issue for me. Aside from that, Firefox and Chrome are pretty comparable although I think Chrome may be a little snappier.




and chrom updates more then firefox dos
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Quoting Tazmanian:





heh am not sure any more
This is a weather blog, and GW, whether you agree or not agree with the topic have to do exactly with the effect on the weather world wide, including the tropics of course. There are many of us that appreciate Dr.Master's insights, information, opinions on the subject.
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.