It's a logical, reasonable question. "Paul, will it rain on my yard this evening?" We respond with probabilities and words like "isolated" and "scattered" thundershowers.
"You have Turbo-Doppler! Why can't you tell me if the storms will hit MY HOUSE?"
Welcome to the world of random weather. We can tell when conditions are ripe for storms, but will your neighborhood be the 10 to 20 percent of the state that sees rain?
In spite of 3 KM resolution models that update every hour the state of the art still can't answer that question with a high degree of confidence. A line of storms? That's straightforward. But hit-or-miss, "popcorn" instability showers? Good luck. Radar on a phone is probably your best tool for pinpointing rain chances for your GPS location. Anything else is an exercise in hand-waving.
Today looks quiet: no pulsating red blobs on Doppler. Storms rumble in Thursday with high humidity. Friday will be the better day to graze the healthy food choices at the State Fair, with highs near 90F. I'll be at the Star Tribune booth around midday to hang out with Vineeta Sawkar and babble about the dew point.
Near 90F Sunday, then a breath of fresh, September air next week.
* 3 KM HRRR model from Tuesday courtesy of NOAA and HAMweather.
Future Radar. Here is 60-hour NOAA NAM guidance showing the next wave of warm frontal thunderstorms pushing across southern and central Minnesota late tonight into Thursday morning. A counterclockwise swirl of showers pushes across the Great Lakes, with a possible severe storm outbreak pushing thru the Ohio Valley into the Mid Atlantic states. Monsoon-related T-storms flare up over the Rockies, but no colorful blobs appear over California, where the drought continues to deepen. Loop: HAMweather.
Accumulated Rainfall Potential. NOAA high-res models print out as much as 2-3" rain for the Twin Cities metro by Thursday night as a (hot) front surges north. If skies clear fast enough behind these storms the mercury may hit 90F on Thursday with dew points sweltering close to 70F. The maps look more like late June than late August into Sunday, but much cooler air knocks the mercury into the 60s and 70s much of next week with half as much water vapor in the air by Monday. If you're looking for comfortable weather for the Minnesota State Fair you may want to wait until next week. Guidance: HAMweather.com
El Nino: Fizzle or Sizzle? What happened to the much-anticipated, much-hyped El Nino event of 2014? It's still coming, according to NOAA's climate.gov. Here's an excerpt of a good post and update: "...In summary, we continue to favor the emergence of El Niño in the coming months, with the peak chance of emergence around 65% (i.e. there is a 35% chance of El Niño not occurring). ENSO forecasters do not expect a strong El Niño (we can’t eliminate the chance of one either), but we are not expecting El Niño to “fizzle.” In fact, just in the last week, we have started to see westerly wind anomalies pick up near the Date Line. Literally and figuratively, we may be witnessing the start of ENSO’s second wind."
Graphic credit above: "
If hot thermometers actually exploded like they do in cartoons, there would be a lot of mercury to clean up in California right now. The California heat this year is like nothing ever seen, with records that go back to 1895. The chart below shows average year-to-date temperatures in the state from January through July for each year. The orange line shows the trend rising 0.2 degrees Fahrenheit per decade. The sharp spike on the far right of the chart is the unbearable heat of 2014. That’s not just a new record; it’s a chart-busting 1.4 degrees higher than the previous record. It’s an exclamation point at the end of a long declarative sentence..."
Graphic credit above: National Climatic Data Center.
"Severe" Drought Covers Nearly 99.8% of California, Report Says. Here's an excerpt of a Los Angeles Times story, which includes an amazing infographic that shows the evolution of California's drought: "Drought conditions may have leveled off across California, but nearly 100% of the state remains in the third-harshest category for dryness, according to the latest measurements. For the past two weeks, California's drought picture has remained the same, halting a steady march toward worse. But the breather has allowed the state to recover only ever so slightly..."
British Columbia Has Spent More Than 3 Times Its Wildfire Fighting Budget. News1130 in Vancouver has the story; here's the intro: "The province is paying a pretty penny when it comes to fighting forest fires this summer. Around $200 million has been spent in the last few months, blowing past the original budget of around $60 million. And since the season is not over yet, that number is expected to grow. Kevin Skrepnek with the Wildfire Management Branch says when it comes to the size and severity of fires, this year has been the worst we have seen since 2010..."
Photo credit: Wildfire Management Branch.
Cheap Hurricane Hype? Is it just noise - or a signal for something we need to keep an eye on? A tropical wave east of the Lesser Antilles has a 50% probability of strengthening into a tropical system within 5 days, according to NOAA NHC. The forecast for midday Wednesday, August 27, one week from today, shows a tropical storm or hurricane in the Gulf of Mexico on the GFS, but the ECMWF (European) model isn't buying it, not yet. If you live along the Gulf Coast you might want to keep an eye on this. I tend to favor the ECMWF, especially with tropical development, but it would be unwise to ignore the GFS altogether. GFS model: Weather Bell; ECMWF guidance: WSI.
Summer of Research to Improve Hurricane Forecasting. In addition to flying into hurricanes (the USA is still the only nation on Earth that does this on a routine basis) NOAA is using two Global Hawk drones to go where no aircraft can go, providing additional data streams that may help forecasters, especially with intensity. Here's an excerpt from NOAA: "...Such targeted observations help significantly improve forecast models for predicting hurricanes, especially when the data can be gathered on a nearly continuous basis for an extended period in areas not now being observed. This fall, NOAA will join with NASA to launch two 115-foot wingspan Global Hawks. These unmanned aircraft will take off from Wallops Island, Va., on several data-collecting missions during five weeks at the height of Atlantic hurricane season. “With the Global Hawk we can fly farther out over the ocean and get to storms that manned aircraft cannot reach..."
Photo credit: "Releasing dropsonde. The Global Hawk can deploy multiple dropsondes at altitudes up to 65,000 feet to collect measurements of temperature, pressure, relative humidity and wind speed and direction." (NOAA).
Danger: Shifting Tracks. Data shows that hurricanes are reaching peak intensity consistently farther north, another symptom of a warming atmosphere and shifting weather patterns. Here's a clip from MIT Technology Review: "Powerful, destructive tropical cyclones are reaching their peak intensity farther from the equator and closer to the poles, according to a study coauthored by an MIT scientist. The study, published in Nature, shows that over the last 30 years, tropical cyclones—also known as hurricanes or typhoons—have been moving poleward at a rate of about 33 miles per decade in the Northern Hemisphere and 38 miles per decade in the Southern Hemisphere..."
Map credit above: "Tropical storm tracks from 1985 to 2005 reflect the poleward migration of cyclones over the last three decades. Such storms now tend to peak farther away from the equator."
Airborne Phased Array Radar Could Spur a "Quantum Leap" in Hurricane Forecasts. Meteorologists do a good job with track, but predicting intensity changes is more problematic. Will a next-generation doppler system help? Here's an excerpt of a story at The Capital Weather Gang: "Forecasts for the tracks of hurricanes have made huge strides over the past 15 years, improving by over 50 percent. But forecasts for the intensity of hurricanes have lagged, with only modest gains in accuracy seen very recently. A new technology under development at the National Center for Atmospheric Research (NCAR), known as Airborne Phased Array Radar (APAR), could be a game-changer for improving forecasts for hurricane intensity and other types of severe weather, according to those familiar with the project..." (3-D visualization of Hurricane Katrina: NASA).
Hurricane Camille: What If It Struck New Jersey? As waters continue to warm could more intense hurricanes systematically find their way farther north, threatening larger population center of the Northeast? The idea isn't as far-fetched as it sounds. Here are a few excerpts from an article at Asbury Park Press: "...Camille's surge was about 25 feet high while Sandy's storm tide (storm surge and astronomical tide) was roughly 14 feet at Sandy Hook, according to NOAA. Moreover, Camille's estimated peak winds were more than twice as strong as Sandy's....Experts have told me over the years that a Category 4 storm is the strongest hurricane that could threaten New Jersey because ocean waters aren't as warm off our coast as they are down south. Still, the storm surge from a Category 4 storm would move up to several miles inland in parts of Monmouth and Ocean Counties, according to maps on the New Jersey Office of Emergency Management website..."
Map credit above: ".
Tornado-Proof Shelter for Holdrege Students. Here's an elementary school in Nebraska that is taking the lead in protecting students and staff, an excerpt of an interesting story at KHGI-TV: "...Safety is what parents want and demand when leaving their kids in the hands of teachers. Now those in Holdrege can breathe a sigh of relief as a new storm shelter can withstand 250 mile per hour winds is being built. Todd Hilyard, the superintendent for Holdrege Public Schools looked over the latest plans for the new elementary school. "All of this, both the exterior walls as well as the interior, are masonry block walls with rebar and concrete fill as well as a concrete roof on top of the storm shelter," he said. "I think every superintendent's heart is in the right place and unfortunately these are expensive areas to build..."
Secrets of Iceberg That Sank The Titanic Revealed In New Study. It turns out 1912 may not have been much of an above-average year for big icebergs. Then again, all it takes is one. Here's an excerpt from a story at Huffington Post: "...Aside from reshaping long-held theories about the Titanic tragedy, the new findings -- described in a paper published online in July 2014 edition of the journal Significance -- may hold an important warning for seagoing vessels today. “As use of the Arctic, in particular, increases in the future, with declining summer sea ice the ice hazard will increase in waters not previously used for shipping," the researchers conclude in the paper. "As polar ice sheets are increasingly losing mass as well, iceberg discharge is increasing... and increasing global warming will likely cause this trend to continue."
In Silicon Valley, Mergers Must Meet The Toothbrush Test. I like the sound of this - pay for things you use every day. Here's an excerpt of an interesting article at The New York Times: "When deciding whether Google should spend millions or even billions of dollars in acquiring a new company, its chief executive, Larry Page, asks whether the acquisition passes the toothbrush test: Is it something you will use once or twice a day, and does it make your life better? The esoteric criterion shuns traditional measures of valuing a company like earnings, discounted cash flow or even sales. Instead, Mr. Page is looking for usefulness above profitability, and long-term potential over near-term financial gain..."
Graphic credit above: Liz Grauman/The New York Times.
The NSA Has Nothing on Google. Do you want to see exactly where you were, on any day in the recent past, courtesy of Google Maps? If you are logged into Google, use Google Maps and (obviously) have location services turned on, this should work for you as well. Click on location history at google.com and you can take a virtual walk down memory lane as see every place you've been going back months (years?). The very definition of TMI...
Robin Williams, Connectedness and The Need to End The Stigma Around Mental Illness. Arianna Huffington takes a look at what all of us can learn, and how we can help those struggling with depression, in this article at Huffington Post; here's a clip: "...So while of course each instance of suicide is different, and while the reasons that people choose to take their own life are complex and individual, as we ask "why" about Robin Williams, we should also broaden the question. Why tens of thousands of people? What is happening that so many people make this irrevocable choice? What are we missing in our culture? How can we open up the conversation on this issue to make other choices seem more realistic and appealing?..."
Taku-Tanku Portable Tiny House Can Be Towed With a Bike. This is looking better and better all the time. Can I jam in a big-screen TV and flush toilet? Two words: low maintenance. Here's a clip from a story at Gizmag: "...The Taku-Tanku is aimed at being compact and affordable. Its interior can accommodate two to three people and has a compartment to store some luggage or belongings. It is also equipped with solar-powered LED lights. There are no frills inside, however. The house is simply said to be easy to build with off-the-shelf and re-purposed materials, and able to provide shelter in a variety of landscapes..."
So Bad It's Good. The worst TV commercial ever made? I've actually seen worse, but in a way this campy, off-tune, train-wreck of a :30 spot for a Missouri shopping mall is pure genius. It may be awful, but 1.3 million people have checked it out on YouTube. Who do you think is getting the last laugh?
81 F. high in the Twin Cities Tuesday.
80 F. average high on August 19.
88 F. high on August 19, 2013.
August 19, 1904: Both downtown Minneapolis and St. Paul were hit by tornadoes. This was the highest official wind ever recorded in Minnesota over one minute (110 mph in St. Paul).
TODAY: Warm sunshine, still pleasant. Winds: SE 10. High: 84
WEDNESDAY NIGHT: Clouds, a few T-storms likely. Low: 70
THURSDAY: Muggy and hot, few T-storms with locally heavy rain. Some PM sun. Dew point: 70. High: near 90
FRIDAY: Drier, still steamy with more sun. Dew point: 67. Wake-up: 69. High: 89
SATURDAY: Sticky sun, PM T-storms. Dew point: 69. Wake-up: 70. High: 87
SUNDAY: Partly sunny. Stinking hot. Wake-up: 68. High: near 90
MONDAY: Blue sky, breathing much easier. Dew point: 53. Wake-up: 63. High: 73
TUESDAY: Sunny start, late showers. Dew point: 49. Wake-up: 57. High: 72
How The World's Biggest PR Firm Helps Promote Climate Change Denial. Here's the intro to an eye-opening story at Motherboard. What a shock, it's all about the money: "When a recent Guardian survey asked top public relations firms if they would refuse to represent organizations that denied climate change, the response was encouraging: ten of the largest said they would. Decidedly less inspiring was the response of the world's single biggest PR company, Edelman, which said it would not rule out helping corporations spread messages of climate change denial. This shouldn't be too surprising, seeing as how it's already doing precisely that. A lot. Edelman helps polluting companies use TV ads, astroturf groups, and slick websites to promote climate change denial around the globe..."
Photo credit above: "CEO Richard Edelman speaking at Davos in 2011." Image: Robert Scoble/Flickr
Did Global Warming Cause "The Great Flood of 2014?" Detroit meteorologist (and friend) Paul Gross provides a thoughtful, scientifically accurate answer to that question at clickondetroit.com; here's an excerpt: "People have been asking me if last week’s historic flood was caused by global warming. The short answer is NO, but read on because this answer requires an explanation. Weather systems develop all the time, and have been doing so for as long as we’ve had weather on this planet. The weather system that developed and dumped a once-every-500-year rain event on metro Detroit last week may have developed anyway. HOWEVER, our warming climate might have made that weather system a heavier rain-producer than it might have been..."
Snow Has Thinned on Arctic Sea Ice. Here are some of the latest findings from The American Geophysical Union: "Scientists have been tracking snow depth on Arctic sea ice for almost a century, using research stations on drifting ice floes and today’s radar-equipped aircraft. Now that people are more concerned than ever about what is happening at the poles, a new study confirms that snow has thinned significantly in the Arctic, particularly on sea ice in western waters near Alaska. The new assessment, accepted for publication in the Journal of Geophysical Research: Oceans, a publication of the American Geophysical Union, combines data collected by ice buoys and NASA aircraft with historic data from ice floes staffed by Soviet scientists from the late 1950s through the early 1990s to track changes over decades..."
Photo credit above: "Researcher Melinda Webster uses a probe to measure snow depth and verify airborne data. She is walking on sea ice near Barrow, Alaska in March 2012. Her backpack holds electronics that power the probe and record the data." Chris Linder / Univ. of Washington.
Antarctica Could Raise Sea Level Faster Than Previously Thought. Here's a clip from a story at redorbit.com that caught my eye: "Ice discharge from Antarctica could contribute up to 37 centimeters to the global sea level rise within this century, a new study shows. For the first time, an international team of scientists provide a comprehensive estimate on the full range of Antarctica’s potential contribution to global sea level rise based on physical computer simulations. Led by the Potsdam Institute for Climate Impact Research, the study combines a whole set of state-of-the-art climate models and observational data with various ice models. The results reproduce Antarctica’s recent contribution to sea level rise as observed by satellites in the last two decades and show that the ice continent could become the largest contributor to sea level rise much sooner than previously thought..."
File photo credit: Eric Mohl/Special to the Star Tribune. "Stunning views like this one compel people to brave the seas to get to Antarctica."
Meet The Companies That Are Trying To Profit From Global Warming. As I've said (ad nauseum) climate change and climate/water volatility represents a threat, and an opportunity. Many, even most of the solutions will come from the private sector. Here's an excerpt of a story at Vox: "...Greenland has taken advantage of the warming Arctic — which is melting the ice and opening new mining opportunities — to push for independence from Denmark. The government is already anticipating millions of dollars in new tax revenue as oil and gas rush north. Alcoa even has plans for a massive aluminum smelter there — powered by Greenland's rivers of melting ice. Dutch engineers are selling their storied flood-management expertise to countries threatened by sea-level rise. One company, Dutch Docklands, is pitching visions of floating cities to regions that could eventually find themselves underwater..."
Photo credit above: "
where the excess heat is primarily going — the ocean — and the rate at which heat transfers to the deep ocean, as well as other factors that can temporarily offset the influence of heat-trapping gases..."Even as a car slows down to go over a “speed bump,” there is no question the car is still advancing down the road. Similarly, the global average surface temperature trend of late is like a “speed bump” and we would expect the rate of temperature increase to speed up again just as most drivers do after clearing the speed bump. We keep getting questions about this air temperature trend that has more to do with
What I Learned From Debating Science With Trolls. Here's an excerpt of a post at The Conversation, one of many tactics used by denialists; this one focused on perverting Galileo's legacy: "...The Galileo Gambit is a debating technique that perverts this history to defend nonsense. Criticisms by the vast majority of scientists are equated with the opinions of 17th century clergy, while a minority promoting pseudoscience are equated with Galileo. Ironically, the Galileo Gambit is often employed by those who have no scientific expertise and strong ideological reasons for attacking science. And its use isn’t restricted to online debates..."
Graphic credit above: "Wikimedia