Primed For Storms. NWS (MPX) Doppler at 9:07 pm shows strong T-storms from Brainerd and Wadena southward to Little Falls and Benson; below severe limits for now. An eastbound cool front will destablize the atmosphere overnight, sparking more storms statewide. A Flash Flood Watch remains in effect - the prospect of "training" storms (cells repeatedly passing over the same counties) is a significant risk, especially north of the metro area. For now I'm not terribly impressed with the tornado potential - but will continue to monitor the situation.
Significant Tornado Parameter. SPC shows a significant risk of tornadic supercells over central Minnesota, from Granite Falls and Montevideo to St. Cloud. There is sufficient wind shear, low level moisture and instability for a few cells to mutate between now and midnight.
Tornado Watch Until 1 am Wednesday. A watch means "watch out", stay alert, keep an eye on the sky, and stay tuned to local media, make sure your NOAA Weather Radio is turned on, and be ready to head to the basement (or an interior "safe room") if skies turn threatening. SPC has issued this watch until 1 am tomorrow. It includes the northern suburbs of the Twin Cities, St. Cloud and Alexandria, but people living near Brainerd and the Twin Cities should not be complacent. If you live close to a watch box, within 50-75 miles, you may be impacted too.
URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 413 NWS STORM PREDICTION CENTER NORMAN OK 610 PM CDT TUE JUN 19 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL MINNESOTA NORTHEAST SOUTH DAKOTA NORTHWEST WISCONSIN EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 610 PM UNTIL 100 AM CDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF WATERTOWN SOUTH DAKOTA TO 125 MILES EAST NORTHEAST OF SAINT CLOUD MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION...CONTINUE...WW 412... DISCUSSION...INTENSE WARM FRONT EXTENDS IN A ENEWD FASHION FROM A SFC LOW IN ERN SD...ACROSS CNTRL MN...AND INTO NRN WI. A VERY MOIST...UNSTABLE AND CURRENTLY CAPPED AIR MASS EXISTS NEAR THE SFC LOW AND ALONG THE FRONT. E TO ENE SFC WINDS NEAR THE FRONTAL ZONE VEER STRONGLY TO SLY JUST ABOVE THE SURFACE AND THE SWLY AT MID LEVELS RESULTING IN VOLATILE EFFECTIVE SRH VALUES IN EXCESS OF 500 M2/S2 AND PRONOUNCED HODOGRAPH CURVATURE. GIVEN MOIST BOUNDARY LAYER FOCUSED ALONG THE BOUNDARY...LFC IS ALSO LOCALLY LOW NEAR THE FRONT AND SUPPORTIVE OF STORM UPDRAFTS INITIATING NEARER THE SFC. THERE IS CONSIDERABLE UNCERTAINTY...HOWEVER...REGARDING SFC-BASED STORM INITIATION IN SUCH A STRONGLY CAPPED REGIME. HOWEVER...TIME OF DAY AND STRENGTHENING FORCING FOR DEEP ASCENT IN THE FORM OF AN APPROACHING SHORT WAVE TROUGH AND STRENGTHENING LLJ...WHEN COMBINED WITH SUCH A SUPPORTIVE KINEMATIC ENVIRONMENT FOR TORNADO POTENTIAL...WARRANT THE ISSUANCE OF THE TORNADO WATCH ALONG THE WARM FRONT THIS EVENING. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25025.
Flash Flood Up Risk. Another "train-echo" scenario is shaping up for northern Minnesota, along a vigorous warm frontal boundary. Repeated waves of strong/severe storms have already dumped as much as 4-5" of rain, and the NWS has issued Flash Flood Warnings. grEarth frame grab at 6:16 pm. Latest warning:
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DULUTH MN
601 PM CDT TUE JUN 19 2012
THE NATIONAL WEATHER SERVICE IN DULUTH MN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL CASS COUNTY IN NORTH CENTRAL MINNESOTA...
NORTHWESTERN AITKIN COUNTY IN EAST CENTRAL MINNESOTA...
SOUTHEASTERN ITASCA COUNTY IN NORTH CENTRAL MINNESOTA...
WEST CENTRAL ST. LOUIS COUNTY IN NORTHEAST MINNESOTA...
* UNTIL MIDNIGHT CDT WEDNESDAY
* AT 549 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED
TRAINING ACROSS THE WARNED AREA. RAINFALL ESTIMATES FROM RADAR
INDICATE 3 TO 6 INCHES OF RAIN HAD FALLEN SINCE 2 PM. IN ADDITION TO
THE OBSERVED HEAVY RAIN 1 TO 2 ADDITIONAL INCHES ARE EXPECTED
TONIGHT WITH LOCALLY HIGHER AMOUNTS POSSIBLE.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...GRAND
GUNN...HAYPOINT...HILL CITY...KEEWATIN...KELLY LAKE...LA PRAIRIE...
MARBLE...NASHWAUK...PENGILLY...POKEGAMA DAM...REMER...SIDE LAKE...
SWATARA AND TACONITE.
Severe Storm Watch. Severe storms in unlikely places - SPC has issued a storm watch until 1 am Wednesday.
Plane-Flipping Winds. Thanks to Travis Overbye who sent in this photo from the airport down in Lakeville. The southern suburbs got the worst of last night's straight-line wind damage
On Our Way To 95 F? Last night's strong/severe storms are lifting north, a clearing trend from south to north with sun likely into the evening hours for the metro area. We should easily reach the low 90s - some towns may surge into the mid 90s. Factor in a dew point in the low 70s and it may feel like 95-100 F. by late afternoon. 2:30 pm visible satellite loop courtesy of WeatherTap.
FRRNG - - gust 78 mph at 5:14 a.m. EDT / 4:14 a.m. CDT - - Meadowview ES in Farmington, MN (south MSP suburb)
KSTP - - gust 64 mph at 5:29 a.m. EDT / 4:29 a.m. CDT - - Holman Field in downtown Saint Paul, MN
LKLML - - gust 64 mph at 5:39 a.m. EDT / 4:39 a.m. CDT - - Oak-Land JHS in Lake Elmo, MN (east MSP suburb)
HASTG - - gust 60 mph at 5:32 a.m. EDT / 4:32 a.m. CDT - - Hastings Middle School in Hastings, MN
KFCM - - gust 54 mph at 5:04 a.m. EDT / 4:04 a.m. CDT - - Flying Cloud Airport in Eden Prairie, MN (southwest MSP)
Another Wild Night. Belle Plain saw a wind gust to 83 mph early this morning. Scott County seemed to get the worst of the straight-line winds, but St. Paul saw a gust to 64 mph.
Apple Valley Wind Damage. Thanks to WeatherNation TV (KARE 11.2) meteorologist Bryan Karrick for sending in these pics: numerous power lines down on Pilot Knob Road - some 3-8" diameter trees down.
90 F. high on Monday in the Twin Cities (6th day at or above 90 F. so far in 2012).
80 F. average high for June 18.
72 F. high last year, on June 18, 2011.
Severe risk today: much of Minnesota is in a "slight risk" area, including the Twin Cities.
93-95 F. predicted high today; a dew point close to 72 F. will make it feel like upper 90s by afternoon.
1.09" rain reported from 7 pm Sunday to 7 pm Monday.
18.67" rain since January 1 (6.6" above average, to date).
This Morning's Storms. MPX Doppler rainfall estimates shows the heaviest (1.5 to 2") rainfall amounts from Montevideo into the northern suburbs early this morning. Did you get a look at some of the nearly continuous lightning? These last 2 outbreaks have featured some of the most amazing lightning I've ever witnessed.
Flash Flood Watch. The local NWS office has issued a flood watch for much of Minnesota. The ground is saturated from recent rains; another 1-3" of rain is possible by Wednesday morning - much of that water will almost immediately run off into streams, streets (and some basements). Details:
...HEAVY RAINFALL POSSIBLE TUESDAY AND WEDNESDAY... .A FLASH FLOOD WATCH HAS BEEN ISSUED FOR MUCH OF CENTRAL AND SOUTHERN MINNESOTA ALONG WITH A SMALL PART OF WEST CENTRAL WISCONSIN FROM TUESDAY THROUGH WEDNESDAY. SOME LOCATIONS IN THE WATCH AREA INCLUDE LITTLE FALLS...MORA...ST. CLOUDY...WILLMAR... HUTCHINSON...THE TWIN CITIES METROPOLITAN AREA...OWATONNA... RED WING...RIVER FALLS...NEW RICHMOND AND BALSAM LAKE. SEVERAL ROUNDS OF THUNDERSTORMS WILL OCCUR TUESDAY AND WEDNESDAY AS A WARM FRONT LIFTS NORTH ACROSS THE AREA ON TUESDAY FOLLOWED BY A COLD FRONT TUESDAY NIGHT AND WEDNESDAY. TORRENTIAL RAINFALL MAY OCCUR IN THE THUNDERSTORMS WITH RAINFALL RATES OF 2 INCHES AN HOUR LIKELY. THE GROUND IS QUITE WET FROM PREVIOUS RAINFALL OVER THE PAST TWO WEEKS AND REPEATED ROUNDS OF HEAVY RAIN WILL LEAD TO SIGNIFICANT RUNOFF ALONG WITH FLASH FLOODING. RAINFALL TOTALS OF 3 TO 6 INCHES ARE POSSIBLE BY LATE WEDNESDAY IN AREAS WHERE REPEATED ROUNDS OF THUNDERSTORMS TRAIN.
Tuesday Severe Risk. It's like clockwork - we seem to get nailed with hail and high water every other day. You could almost set your watch to these waves of severe storms. SPC has much of Nebraska, the eastern Dakotas, Minnesota and northern Wisconsin in a "slight risk" of severe storms today, meaning damaging hail, straight-line winds, even a few isolated tornadoes.
One Week's Worth Of Storm Reports. I counted roughly a dozen tornadoes and funnel clouds across Minnesota in just the last 7 days. Over 1800 severe storm reports since June 12, according to SPC. Map courtesy of Ham Weather. Details:
|Total Storm Reports:||1837|
Rainfall Potential. The 00z NAM is predicting some 1-1.5" rainfall amounts by Wednesday evening over the northern and western suburbs of the Twin Cities, the heaviest rain band extending into St. Cloud and Hinckley.
84 Hour Prediction. The NAM prints out significant rain across the Upper Midwest and Great Lakes as cooler, Canadian air pushes southward by midweek. Note a developing storm in the Gulf of Mexico by Thursday. It could be noise; then again it could wind up becoming Tropical Storm Chris.
30 Day Rainfall Estimates. NOAA posted this map, showing Doppler radar rainfall estimates since May 17. The southern and western suburbs of the Twin Cities have seen over 10" of rain; just as much from near Cross Lake and Crosby to the Duluth area. Meanwhile much of the Red River Valley has only seen 2-3" of rain, which is closer to average for a 4 week period. The ground is saturated, waterlogged - meaning any additional heavy rain will quickly run off into streets and streams. Thus the Flash Flood Watch.
Soggy Bullseye. The latest NOAA HPC 5-day rainfall forecast shows some 2-4" rainfall amounts over Minnesota, as much as 5"+ over the Florida Keys. Meanwhile most of the southwest remains tinder-dry, only light showers and widely scattered T-storms for the northeastern USA.
"Last week in Virginia, the General Assembly approved a study on the effects of sea-level rise only after references to “sea level rise” were removed. The phenomenon has been rechristened “recurrent flooding.” References to “climate change” have similarly disappeared from the official Virginia lexicon." - from an article at KansasCity.com. A great overview on the climate change equation, and why it's time to do something (now) from Grist.com below.
"Retired Vice Admiral Dennis McGinn added: “There is not a shred of political correctness in what the military is doing with energy efficiency or renewable energy. From lance corporal to general, they are on board. They live with the problems from the over-reliance on fossil fuels.” Jon Soltz, an Iraq war veteran, underscored this point in a Huffington Post op-ed: “[T]he military isn’t on some kind of ecological mission when it comes to renewables. They’re trying to help ensure men and women come home to their loved ones.” - from a story at EcoWatch; details below.
Excessive Heat Warning. The NWS has issued heat warnings for the Delaware Valley, where the combination of heat and humidity may result in a heat index as high as 110 F. by Thursday.
Heat Index. When there is a lot of water in the air, like there will be today with dew points in the 70s, your body can't cool itself naturally by evaporating sweat off your skin. There is less "evaporative cooling", and it's much easier to overheat. The risk of heat exhaustion and even heat stroke will be significant in the coming days.
Tornado Damage In Ortonville. The photo above comes courtesy of The Ortonville Independent, via Facebook: "Ortonville hit by storm. Main St (2nd) is a mess."
Minot Still Recovering A Year After Historic Flood. Details from AP and The Dickinson Press: "Events are planned this weekend to celebrate Minot's recovery from the historic Souris River flooding a year ago _ a rebound that North Dakota's fourth-largest city is far from completing. The "Weekend of Hope: Return to Oak Park" events will be highlighted by the reopening of the area's largest park on Friday. Other family oriented events are planned for Saturday. Mayor Curt Zimbelman said in a statement that it is a time to remember how far the community has come in the past year. "And since we still have a long way to go, we will rededicate ourselves to do whatever it takes to continue restoring the hope needed for our city and valley to rebuild from the 2011 flood," he said." (AP Photo/The Grand Forks Herald, Christian Randolph, File)
40 Years Ago Hurricane Agness Flooding Devastated Area. This is the storm (Tropical Storm Agnes) that ultimately got me interested in meteorology. Ask most TV meteorologists and they'll probably confide that some sort of storm (flood, hurricane, tornado, blizzard) put the fear of God in them, and got them started on a meteorology path. Here's an excerpt (and video clip) from Norristown, PA The Times-Herald: "The Pottstown Mercury’s headlines in late June 1972 were as dramatic as they come in the newspaper business." Words like “devastate,” “critical,” “massive,” and “destruction” were bolded across the paper’s top. As a reader goes through the pages, day by day, the headlines don’t get much better. “Industry in Pottstown Crippled by Schuylkill” -- June 23."
Typhoon Guchol. Here's the latest on Typhoon (same thing as a hurricane) "Guchol", threatening coastal Japan, courtesy of the University of Wisconsin CIMSS: "Here's a MODIS image of Typhoon Guchol heading toward Japan & forecast to make landfall Tuesday."
A Wider View. Here's another view of Typhoon Guchol from Digital Typhoon, threatening southern Japan with a direct strike later today.
Hurricane Season Is Here: Are You Prepared? Some good information and advice in this article from riverheadlocal.com; here's an excerpt: "Advance planning is the key to survival, he said. “Have a plan,” he cautioned. There are many planning resources, including Riverhead Town's emergency preparedness webpage, the NOAA website, the Red Cross Hurricane Safety Checklist, and Suffolk County. Dickman's top two suggestions: get familiar with the hazards in your area, such as storm surge, flooding, and downed trees; and consider evacuation/sheltering well in advance of the storm’s arrival. “Know where nearby shelters may be located and plan your evacuation routes. Leave plenty of time to get away,” he said, warning that the day before the storm may be too late."
Photo Of The Day: "Supercell". Thanks to Jackie Noshea - who's sister sent in this remarkable photo from Herman, Minnesota Sunday afternoon.
"Ask Paul". Weather-related Q&A:
I was wondering about the lightning (Sunday) night that I noted in the east-southeast skies, if it was lightning. I woke up and could not figure out what the flashing lights were. When I looked outside it appeared to be lightning of some type, but it was not like any type of lightning I have seen before. I haven't heard anything on the weather reports about it so I thought you might be able to help.
New Mexico Wildfire Threatens Smokey The Bear's Home. Details from USA Today: "One of the serious forest fires in New Mexico is in the area where the legendary Smokey the Bear was found as a cub. The "Little Bear" fire is burning in the Smokey the Bear Ranger District, White Mountain Wilderness and Lincoln National Forest in southern New Mexico near Ruidoso. The forest is where the scared bear cub was rescued in 1950. He went on to become the symbol of the U.S. Forest Service, with an animated version growling, "Only YOU can prevent forest fires!" in public service announcements."
Little Bear Fire Operations Brief On Chronology And Tactics. If you're tracking the western fires, check out this Vimeo video update: "Joe Reinarz's Type 1 Southwest Incident Management Team, Operations Chief, Carl Schwope details the chronology of the Little Bear Fire in New Mexico that started on June 4, 2012. Schwope explains the tactics used by the team to manage the fire when they arrived on June 9th."
In Search Of Summer. Yes, summer comes only reluctantly to Denali National Park and Preserve; as explained in this Facebook post: "The June hours. Sometimes bring spring flowers. Sometimes snow showers." ~NH
Pssst...You Wanna Buy A Jet-Powered Go Kart? I know I do - details from gizmag.com: "Seth Kettleman is no stranger to high-powered vehicles. The surplus aircraft parts dealer provided the Boeing engine and technical support for the building of a jet-powered Batmobile replica, and more recently attempted to sell his own similarly-outfitted Datsun 280ZX on eBay. Now, you have the chance to buy another one of his monstrosities – a custom-built jet-powered go-kart."
Hot Dog. Thanks to the BAMS Chase Team for sharing this photo via Facebook: "Even Guinness knows how to keep cool on these 90° days! A. #StayHydrated #HotDog #INwx."
Enough To Turn You Into A Vegetarian. Whoever wrote this headline needs a time-out.
Steamy Monday. After a night of wild thunderstorms and nearly continuous lightning, the sun was out most of the day Monday; highs ranged from 62 at Grand Marais to 79 Duluth, 88 St. Cloud, and 90 in the Twin Cities and Redwood Falls.
Extended Outlook: Steamy Tuesday, Then More Comfortable. The latest ECMWF (European) model is predicting a nice cool-down by midweek, a welcome drop in humidity by Thursday. It's early, but right now Saturday appears to be the wetter day of the weekend with scattered showers and T-storms. Sunday appears to be the better day for the lake.
Paul's Star Tribune Outlook for the Twin Cities and all of Minnesota:
TODAY: Stinking hot. Few T-storms likely, some severe. Dew point: 72. Winds: S 20. High: 94
TUESDAY NIGHT: More T-storms (best chance up north). Low: 65
WEDNESDAY: Much cooler with showers, possible thunder. Dew point: 65. High: 72
THURSDAY: Sunny, less humid. Dew point: 56. Low: 62. High: 81
FRIDAY: Fading sun, storms at night. Dew point: 61. Low: 64. High: 84
SATURDAY: Stormy start, slow PM clearing. Winds: NE 10. Low: 67. High: 78
SUNDAY: Sunnier, nicer day of the weekend. Dew point: 58. Low: 65. High: 81
MONDAY: Hazy sun, turning sticky again. Low: 66. High: 84
I want to apologize for Sunday's forecast. It was a real stinker. "I thought you said it would be a nice day" my wife helpfully reminded me. People are always thoughtful enough to point out when we "bust" a forecast, especially on summer weekends.
"What time will it rain at my house Paul?"
Easy enough question. In fall, winter and spring precipitation is "stratiform", big smears of steady rain or snow. But in summer precipitation is "convective", showery, hit or miss. T-storms are 5-10 miles wide, lasting 30-45 minutes. Computer models are pretty useless until you get within about 12 hours of an event. All we can do is tell when the atmosphere is RIPE for storms.
And every now and then (like Sunday) a cluster of storms slips through the cracks altogether. It's a humbling profession, but I try to admit when I'm wrong.
90s are likely today, strong storms up north. An eastbound cool front ignites a few severe storms Wednesday, followed by more comfortable air the latter half of the week.
Blast-furnace heat stays just to our south next weekend; another round of T-storms Saturday AM giving way to a sunny, comfortable Sunday. I pray.
Hey, it's June. Lower your expectations.
15 Military Leaders Say Climate Change Is A National Security Threat. Here's an excerpt of a story from Media Matters for America and EcoWatch: "Republicans in Congress are attempting to prevent the military from purchasing alternative fuels, which Senator Inhofe (R-OK) believes are merely “perpetrating President Obama’s global warming fantasies and his war on affordable energy.” And conservative media arebackingtheattacks on climate change and clean energy programs, suggesting that these investments come at the expense of national security. But experts across the political spectrum agree that climate change poses a serious threat to our national security, and that transitioning to alternative energy will enhance military effectiveness. Here are 15 current and former national security officials in their own words on the threat of climate change: Thomas Fingar, former chairman of President Bush’s National Intelligence Council: “We judge global climate change will have wide-ranging implications for U.S. national security interests over the next 20 years."
Ancient Climate Change Greened Antarctica. Planet Save has the story; here's an excerpt: "Ancient Antarctica was much warmer and wetter than was previously thought, according to a new study just released in the journal Nature Geoscience. The climate supported lush vegetation, including stunted trees, along Antarctica’s coastline. The research was done by the University of Southern California."
Climate Change Is Simple: We Do Something Or We're Screwed (My TEDx Video). Here's an excerpt of a great climate change overview and video from David Roberts at Grist.com: "Back in April, The Evergreen State College invited me to speak at a TEDx event called “Hello Climate Change: Rethinking the Unthinkable.” Videos from the event are now online. My talk was called “Climate change is simple.” I’m proud to say that I used only 17 of my allotted 15 minutes. I’ve put an annotated version of my slideshow beneath the video, linking to sources and adding thoughts. The only thing I’ll say about the video itself is that I’ve always thought these things would be better with a soundtrack. If anybody out there on the web wants to make a mashup with it, add some good beats, be my guest."
Stop Public Handouts To Oil, Gas And Coal Companies Now. Here's an excerpt of an Op-Ed from Robert Redford at Huffington Post: "Every year, around the world, almost one trillion dollars of subsidies is handed out to help the fossil fuel industry. Who came up with the crazy idea that the fossil fuel industry deserves our hard-earned money, no less in economic times of such harsh human consequence? We fire teachers, police and firemen in drastic budget cuts and yet, the fossil fuel industry can laugh all the way to the bank on our dime? Something doesn't add up here. We should not be subsidizing the destruction of our planet. Fossil fuels are literally cooking our planet, polluting our air and draining our wallets. Why should we continue to reward companies to do that?"
Commentary: Add Rising Sea Levels To List Of Banned Terms. Now some state officials are banning the terms: "sea level rise" and "climate change". Really? There are some forward-thinking "leaders". More in an Op-Ed from the Miami Herald, reposted at KansasCity.com: "It must be frustrating for our guys in Tallahassee. The governor and the legislative leadership have made it plenty clear that they have no use for this global warming stuff. Yet climate scientists keep dumping water on Florida’s future. The latest damper comes from Climate Central, which just published two papers in the peer-reviewed journal Environmental Research Letters, warning that due to global warming and rising sea levels, 3.7 million Americans reside in areas with an escalating risk of storm surge and coastal flooding. Half of them are in Florida. South Florida comes out looking particularly soggy."
European Arctic Forest Expansion Could Result In Carbon Dioxide Release: Study. Here's an excerpt from a story at phys.org: "The Arctic is getting greener as plant growth increases in response to a warmer climate. This greater plant growth means more carbon is stored in the increasing biomass, so it was previously thought the greening would result in more carbon dioxide being taken up from the atmosphere, thus helping to reduce the rate of global warming. However, research published in Nature Climate Change, shows that, by stimulating decomposition rates in soils, the expansion of forest into tundra in arctic Sweden could result in the release of carbon dioxide to the atmosphere." (AP Photo/John McConnico, File).