WxYz (WeatherWhys) Features (since 2008)
2020
September 23 Peculiarities of the 2020 Atlantic hurricane season
September 9 Extreme temperature swings in Pennsylvania
September 2 Observations on Hurricane Laura
August 26 The Fujiwhara Effect
August 12 Rhythms in the Tropics: CCKWs and the MJO
July 29 Modern satellite imagery, hurricanes, and mesoscale convective systems
July 22 Weather and moving college football to spring
July 8 Long-term perspective on rainfall in Pennsylvania
July 1 A little dust goes a long way
June 24 Lightning climatology of Pennsylvania
June 3 Historic SpaceX launch
May 31, 1985 retrospective:
Part 1;
Part 2
May 27 Numerical Weather Prediction - by hand?
May 20 Pre-season Atlantic tropical storms
May 6 Coronavirus disruptions to meteorological research
April 29 Coronavirus and air quality improvements
April 22 50th anniversary of Earth Day
March 25 Thoughts on coronavirus
March 18 March 21 ... the first day of spring?
March 16 Coronavirus and weather
March 4 Too warm or too cold to snow?
February 26 Driest days nationwide (collaboration w/ WPC)
February 19 North Atlantic winter bomb cyclones
February 5 National Weather Service 150th anniversary
January 29 A Super Bowl climatology
January 22 The Indian Ocean Dipole
2019
December 18 Holiday lights from space
December 4 Winter storm in 3D
November 20 Lake-Effect Plus
November 6 A "Blue Norther" for the record books
October 30 Standard vs Daylight Saving Time
October 23 Weather extremes of the World Series
October 9 Finding the center of Pennsylvania
October 2 "L" storms, retirement, and Lorenzo
September 25 30th anniversary of Hurricane Hugo
September 11 Birds in the eye
September 4 Observations about Hurricane Dorian
August 28 Majoring in Meteorology at Penn State
August 21 50-year anniversaries of Hurricane Camille and Woodstock
August 7 The Dog Days of Summer
July 31 Hurricane spaghetti; Links to model output:
NOAA,
NCAR,
UWM; Links to information:
NOAA,
NCAR,
UWM
July 24 A 40-yr high-school reunion and the origins of my weather fascination
July 17 Observations about Apollos 11-17 - Some meteorological, some not
July 3 Weather of the Battle of Gettysburg
June 26 The GFS upgrade to FV3
June 4 The National Hurricane Center
June 3 Hurricane Awareness Tour
May 29 The most important weather forecast of the 20th century?
May 22 Wettest 12-month stretch on record
May 8 Dry lines and recent severe thunderstorms
May 1 Review of Winter 2018-19 snow
April 24 Hurricane Michael reanalysis
April 10 April - a month of significant change
April 3 (Lack of drought) milestone
March 27 Evolution of hurricane name lists
March 13 Deadly Alabama tornado
March 6 Atmospheric rivers
February 27 The jet stream, and a record wind speed
February 13 The Regional Snowfall Index
February 6 The "Hard Winter"
January 30 The "Polar Vortex"
January 23 Historical look at big Pennsylvania snowstorms
2018
December 19 50-year anniversary of iconic Apollo 8 photo
December 5 Does winter remember November?
November 28 A WeatherWhys Anniversary
November 21 Weather and the Pilgrims
November 7 Warmest, coldest, wettest, driest, snowiest College football venues
October 31 15-year anniversary of a scary Halloween storm
October 24 Observations of Hurricane Michael
October 3 Unusual October bout of severe weather
September 26 Ensemble forecasting
September 19 Hurricane Florence
September 5 Most humid summer since?
August 29 Weather for Penn State home openers
August 22 Dust in the wind
August 8 Recent deluge
August 1 What August 1 means to me - past, present, and future
July 25 Climatology of Pennsylvania heavy rain days
July 18 The Open at Carnoustie
July 4 The weather of the original Independence Day
June 27 An Updated Tornado Climatology of Pennsylvania
June 20 Twin EF-2 tornadoes in Pennsylvania
June 6 "Twin Peaks" of tropical season in the North Indian Ocean
May 30 Flooding in Ellicott City, MD
May 23 Severe Weather on May 15, including a meteotsunami
May 9 Meteorology, Geology, and Hawaii
May 2 Weather and the Kentucky Derby
April 25 Weather and Major League Baseball
April 11 Late freezes, late snows, and the first 10 days of April 2018
April 4 Remembering the Superoutbreak of April 3-4, 1974
March 28 March is the new February
March 21 When does spring really begin?
March 7 Last week's nor'easter, and the yardstick for them all
February 28 Ice on the Great Lakes
February 21 Olympic ice science
February 7 2018 Winter Olympics
January 31 Snow crystals
January 24 Snow squall warning introduced
January 3 Record Erie snow
2017
December 20 The historical roots of a "White Christmas"
December 6 Viewing the 2017 hurricane season using smoke, salt, and dust
November 29 NWS Hazard Simplification Initiative
November 22 Thanksgiving climatology, and the 1950 Thanksgiving weekend storm
November 8 Instability with a jacket on
November 1 The slide into winter
October 25 Winter folklores
October 18 Northern California fires
October 4 Journey to the geographic center of Pennsylvania
September 27 Hurricane Maria and Puerto Rico
September 20 Historic Irma
September 6 Irma and fake forecasts
August 30 Hurricane Harvey
August 23 Hurricane Andrew - 25 years later
August 9 The hottest place in the U.S.
August 2 New National Hurricane Center products
July 26 Waynesburg's "Rain Day"
July 19 A vivid childhood memory - Apollo 11
July 5 Flash flooding and the power of moving water
June 28 Civil, Nautical, and Astronomical twilight
June 21 How long is summer?
June 7 Rundown of recent photogenic weather
May 31 The most dangerous weather day in Pennsylvania
May 24 An unusual month of weather
May 17 The Nenana Ice Classic
May 3 Franklin Institute awards and Earth Day
April 26 Tornado Warning performance
April 19 Recent weather legislation
April 5 A tradition unlike any other
March 29 Out-of-Sync Months
March 22 Snowcover from space
March 8 Remarkable Western winter of 2016-17
March 1 Tornadoes in Pennsylvania in February?
February 22 Whither Winter?
February 15 Himawari-8 highlights
February 1 Climatology of "Big" PA snowstorms
January 25 Across an ice storm
January 11 Farm Show weather folklore
2016
December 7 75th anniversary of Pearl Harbor
November 30 GOES-R becomes GOES-16
November 23 Weather and the Thanksgiving Day meal
November 9 Supermoon or not?
November 2 Twenty-fifth anniversary of "The Perfect Storm"
October 26 Weird clouds
October 19 Indian Summer
October 5 Hurricane Matthew
September 28 Autumnal Equinox
September 21 Four at a Time?
September 7 Cruising - Tropical and Arctic style
August 24 The storm with no name
August 10 Rio and Track & Field World records
August 3 Rio and the 2016 Summer Olympics
July 27 Yes it's been hot, but not this hot
July 20 Oddities in tropical seasons so far
July 6 Colorful sunsets and Mount Pinatubo
June 29 Tornado in China last week
June 22 The summer solstice
June 8 Power of moving water
June 1 IHBS Hail Study project
May 25 The GOES program
May 18 20-year anniversary of "Twister"
April 27 Two infamous tornado videos from April 26, 1991
April 20 30-year anniversary of Chernobyl nuclear accident
April 6 March winds and atmospheric salad
March 30 Snowfall in Winter 2015-16
March 23 Astronaut Scott Kelly photo gallery
March 9 Pi Day
March 2 A Rare February weather day
February 24 Cyclone Winston
February 10 Mid-winter summary
February 3 Aqua and Terra
January 27 Another historic snowstorm
January 13 100 Years of "Farm Show Weather"
2015
December 23 Holiday lights from space
December 9 El Nino
December 2 Radiosondes and the bomb squad
November 25 Weather and the Thanksgiving Day meal
November 11 The 70-degree road trip
November 4 Anomalously warm water
October 28 Legendary venue gets new turf
October 21 Back to the Future day
October 7 Flooding, forecasting, and Joaquin
September 30 Pennsylvania Turnpike anniversary
September 23 Meteorological ACE
September 9 Major League Baseball and lightning
September 2 Hawaii and hurricanes
August 26 The decade since Katrina
Aug 12 Story behind the Earth/Moon picture
August 5 Pacific Northwest summers
July 29 Hottest places on Earth
July 22 How humid can it get?
July 8 The Open Championship
July 1 Natural fireworks: The statistics of lightning
June 24 A 100-year anniversary of (artificial) cold
June 17 PECAN: Plains Elevated Convection At Night
June 3 Charles Hosler, Dwight Eisenhower, and the history of Penn State Meteorology
May 27 Mentions of drought
May 20 Lewis Fry Richardson anniversary
May 13 A trifecta of weather hazards
April 29 TRMM passes the baton to GPM
April 22 Tambora and Frankenstein
April 8 Tropical Season in the Southern Hemisphere
April 1 Driest place on Earth
March 25 Late season snows
March 11 Winter 2014-15 chill
February 25 Coldest places on Earth
February 11 Coldest week of winter?
February 4 Communicating forecast uncertainty
January 28 Tribute to Dr. Alfred K. Blackadar
January 14 Extreme high pressure
2014
December 31 Holiday lights from space
December 10 Christmas trees and Pennsylvania
December 3 November snowpack longevity
November 26 Extreme lake-effect snow
November 12 Origin of Arctic air masses
November 5 - Numerical Weather Prediction model skill
October 29 - Seasonal forecasting
October 15 - Typhoon naming
October 8 - Visit from the DOW
October 1 - October in Pennsylvania
September 17 - Lightning and college football
September 10 - 2014 Hurricanes: Atlantic vs Pacific
September 3 - Summer of Flooding
August 27 - 100th anniversary of opening of the Panama Canal
August 13 - 75th anniversary of The Wizard of Oz
August 6 - Lightning climatology of Pennsylvania
July 30 - 84 years of weather observing
July 23 - Summertime around the Lakes - Oases of tranquility
July 9 - When is the warmest time of the year?
July 2 - More than one "Twilight"
June 25 - Supercell thunderstorms
June 18 - Weather of the 2014 World Cup
June 4 - 70th anniverary - The weather of D-Day
May 28 - 125th anniversary of Johnstown Flood
May 21 - Pennsylvania wildfires
May 14 - Citizen scientist weather projects
April 30 - Severe weather starting
April 23 - Climbing Mount Everest
April 9 - The Winter of 2013-14, in review
April 2 - Landslide capital of the US
March 26 - Oil spill anniversary
March 12 - Great Lakes ice
February 26 - Clear-Air Turbulence (CAT)
February 12 - Persistent anomalies
February 5 - 2014 Winter Olympics in Sochi, Russia
January 29 - A Northern Super Bowl
January 15 - Perspective on recent cold snap
January 8 - Update on "Farm Show Weather"
2013
December 11 - Exotic precipitation
December 4 - What Hurricane Season?
November 27 - Weather and the Pilgrims
November 13 - Supertyphoon Haiyan
November 6 - Sandy - One year later
October 30 - Pollution issues - China today vs Donora 65 years ago
October 23 - World Series weather
October 9 - WeatherPalooza
October 2 - College football climatology
September 25 - The Long Island Express
September 18 - Historic Boulder flooding
September 4 - Celebrating 30 years of Weather World
August 28 - Saharan Air Layer (SAL)
August 21 - Hurricane warning anniversary
August 7 - Cool comfortable summers?
July 31 - Philadelphia daily rain record
July 24 - "Home Run Weather" app
July 10 - Weather behind the deadly Arizona wildfire
July 3 - Weather of the original Independence Day
June 26 - 150th anniversary of Battle of Gettysburg
June 19 - Weather satellite news
June 5 - Turning point for storm chasing?
May 29 - Another EF5 hits Moore, OK
May 22 - Everest anniversary
May 15 - Carbon Dioxide milestone
May 1 - The Kentucky Derby
April 24 - Migration and weather radar
April 17 - Frontogenesis
April 3 - Memories
March 27 - Two very different Marches
March 13 - 20-year anniversary of the March 1993 Superstorm
February 27 - Lake Effect, International style
February 13 - Overuse of "Blizzard"
February 6 - Rapid deepeners
January 30 - How cold was that chill?
January 23 - Revisiting Inauguration weather
January 9 - Images of 2012
2012
December 12 - The "Black Marble"
December 5 - Arctic sea ice volume
November 28 - Different seasons for different reasons
November 21 - Weather and your Thanksgiving dinner
November 7 - Remarkable Sandy, Part II
October 31 - Remarkable Sandy, Part I
October 24 - Where have record lows gone?
October 10 - Fiftieth anniversary of 1962 Columbus Day storm
October 3 - Record summer Arctic ice melt
September 26 - World record high temperature invalidated
September 12 - Doppler radar "Dual Polarization" upgrade
September 5 - Hurricane Isaac, and Isaac Cline
August 29 - Andrew at 20
August 15 - Mars Curiosity
August 8 - Death Valley
August 1 - Wind and Olympic track and field
July 25 - Where is the hottest place on Earth?
July 18 - 70th anniversary of Smethport rainfall record
July 11 - Hard-hitting DC derecho
July 4 - Fourth of July weather
June 27 - Too hot to rain?
June 20 - 40-year anniversary of Agnes
June 6 - Pennsylvania severe weather and a gustnado
May 30 - Transit of Venus
May 23 - Global tropical cyclone count
May 16 - 75th anniversary of Hindenburg disaster
May 2 - Penn State commencement
April 25 - Bookend winter snows
April 11 - 100th anniversary of Titanic sinking
April 4 - Weather and the Masters golf tournament
March 28 - Remarkable March warmth
March 14 - Derived satellite products
March 7 - 50 years since Ash Wednesday storm
February 29 - Story of Leap Year
February 22 - Winter's days are numbered
February 8 - When is the coldest month and coldest week of the winter?
February 1 - Warm winter so far
January 25 - 2011, a record wet year in Pennsylvania
January 11 - Billion-dollar weather disasters
2011
December 14 - South Pole conquest anniversary
December 7 - Christmas trees and weather
November 30 - Recap of 2011 Hurricane season
November 23 - Thanksgiving climatology and memorable storms
November 9 - The 100th anniversary of two amazing temperature records
November 2 - Freak October snow well forecast by models
October 26 - 20th anniversary of "The Perfect Storm"
October 12 - Recent atmospheric flip-flop
October 5 - Hurricane models and spaghetti plots
September 28 - Satellite Eclipses
September 21 - Impact of Tropical
Storm Lee in Pennsylvania
September 7 - Lightning and college football
August 31 - Hurricane forecast errors
August 24 - Recent lull in U.S. hurricane landfalls
August 10 - The hurricane "Name Game"
July 27 - 75 years ago - hottest summer on record in U.S.
July 20 - Unusual thunderstorm byproducts - heatbursts and haboobs
July 6 - Mount Pinatubo anniversary
June 29 - Tornadoes 2011
June 22 - Delaware River Sojourn
June 15
(hi-res .mov) Cool Science Projects
June 1 - Cherry Springs Star Party
May 25 - Streaks of rainy days
May 18 - Diverting flood waters
May 4 - Historic tornado outbreak
April 27 - Chernobyl 25th anniversary
April 13 - An unprecedented severe weather outbreak ??
April 6 - A swing through North Africa and the Middle East
March 30 - A March tornado in Pennsylvania?
March 16 - Science of tsunamis
March 9 - Flooding looms in Northern Plains while drought dominates South
March 2 - Remarkable temperature turnarounds in February
February 16 - Thundersnow
February 2 - New "Normals" on the way
January 26 - Weather and the Space Shuttle Challenger disaster
2010
December 15 - Wind Chill
November 24 - Weather and the Pilgrims
November 10 - Fall foliage and the "A-Train"
November 3 - Strange Pennsylvania growing season
October 27 - Slow typhoon season, with an exception
October 13 - Spring and fall - Pizza and pudding
October 6 - Goldilocks Planet discovered
September 29 - Canadian hurricanes
September 15 - 50 Years of football weather at Beaver Stadium
September 8 - Unconventional satellite imagery: Danielle and Earl
September 1 - Summer of 2010 - What a difference a year makes!
August 25 - Tropical cyclone monitoring from space - The Dvorak Technique
August 11 - New U.S. record hailstone
August 4 - Weather and the first atomic bombs
July 28 - The Man Who Rode the Thunder
July 14 - Seventy-five years of Meteorology at Penn State
July 7 - New national heat records in Asia and Africa
June 30 - An overview of the National Weather Service SKYWARN program
June 23 - Remembering Pennsylvania's most costly natural disaster
June 9 - Pennsylvania is just now heading into the peak of severe weather season
June 2 - The Gulf oil spill and the "Loop Current"
May 26 - A pre-season look at the upcoming Atlantic hurricane season
May 19 - Year 2 of the Vortex2 project
May 5 - Weather and Major League Baseball
April 28 - Recent changes in GOES fleet
April 21 - Mount Washington dethroned: New world record wind speed
March 31 - Elusive South Atlantic Tropical Cyclones
March 24 - Touring the state using high resolution satellite imagery
March 17 - Recent flooding, and the 1936 St. Patrick's Day Flood
March 10 - Too Cold or Too Warm to Snow
March 3 - Pennsylvania snowfall in the historic winter of 2009-10
February 24 - A meteorological, geographical, and statistical look at the winter of 2009-10
February 3 - Weather and the 21st Winter Olympics
January 27 - Memories of a truly cold winter in Pennsylvania
January 20 - Most significant weather events in Pennsylvania, 2005-2009
January 13 - Most significant weather events in Pennsylvania, 2000-2004
2009
December 23 - A brief history of "White Christmas"
December 16 - Satellite imagery and the winter season
December 9 - Was it snowier in the "Good Old Days"?
December 2 - October vs November, and the Winter to Come
November 18 - Tropical Highlight 2009
November 11 - November Gales and the Edmund Fitzgerald
November 4 - Russian Snow Suppression?
October 28 - The Finest Two Acres in Pennsylvania
October 14 - Typhoons and the U.S.
October 7 - The Colors of Autumn
September 23 - Twenty Year Anniversary of Hugo
September 9 - Recent Wildfires in California
August 26 - Bogus Weather Pictures
August 19 - Hurricane Climatology
August 5 - Heavy Rain Days
July 29 - Hurricane Suppression?
July 22 - Apollo 11 Anniversary
July 8 - The Loudest Thunder?
July 1 - The Weather at Gettysburg
June 24 - Year Without a Summer
June 10 - The ITCZ and Plane Crashes
June 3 - Early Tropical Activity
May 27 - Ten Years of EOS Imagery
May 13 - VORTEX2, Part II
May 12 - VORTEX2, Part I
May 6 - Pennsylvania's Observing Network
April 29 - Early Warm Spells
April 22 - Boston Marathon Weather
April 15 - Extreme Weather: Mount Washington
April 8 - Sea-Level Pressure
April 1 - Severe Weather News
March 25 - March, the Snowiest Month?
March 18 - March Madness and College Nicknames
March 11 - Too Cold or Too Warm to Snow
February 25 - Pennsylvania Big-Snow Climatology
February 11 - President's Day Snowstorms
February 4 - An Historic Ice Storm
January 28 - Super Bowl Weather
January 21 - Presidential Inauguration Weather
January 14 - Farm Show Weather
January 7 - 2008 Review, in Images
2008
December 31 - Rose Bowl Weather
December 24 - Dreaming of a White Christmas
December 17 - Anniversary of the First Flight
December 10 - Lake-Effect Highlights
December 3 - Review of the 2008 Hurricane Season
November 19 - "Thickness", Meteorology Style
November 12 - A Meteorological "Daily Double" - A Record High and a Record Low on the Same Day
November 5 - Early Season Snow for Northeastern Pennsylvania
October 29 - Weather and Election Day
October 22 - World Series Weather
October 15 - Indian Summer
October 8 - October - A "Laid Back" Month
October 1 - To Name or Not To Name?
September 24 - Hurricane Hunters and Hurricane Janet
September 17 - The Unusual Track of Hurricane Ike
September 10 - Halfway Through Hurricane Season
August 27 - The Chesapeake-Potomac Hurricane of 1933
August 20 - Hurricanes Connie and Diane in August 1955
August 13 - Summer Olympics in Beijing - Part II
August 6 - Summer Olympics in Beijing - Part I
July 30 - The Dog Days of Summer
July 23 - Rain Day in Waynesburg, PA
July 16 - Derechoes: Ferocious Thunderstorm Complexes
July 9 - The Weather of Death Valley
July 2 - 4thFest Fireworks
June 25 - Summer Solstice Tips
June 11 - Bad Tornado Year So Far
June 4 - The Weather of D-Day
May 28 - Penn State Weather Center Gets a Facelift
May 21 - Chaiten Volcano Erupts
May 14 - Twin Peaks of the North Indian Tropical Season
April 23 - Anniversary of Earth Day
April 16 - Home of the World's Worst Weather
April 9 - Weather History of The Masters
April 2 - Pennsylvania Observing Networks
March 26 - When is the Last Accumulating Snow?
March 19 - The Freezing of Lakes
March 12 - Remembering the March 1993 Superstorm
March 5 - Recap of Meteorological Winter
February 27 - Lake-effect snow
February 20 - Ways That the Atmosphere Deposits Ice
February 6 - Some Winter Extremes Elsewhere
January 30 - Punxsatawney Phil Visits Penn State
January 23 - Snowflake Bentley
January 16 - Highlights of a Remarkable Storm
January 9 - Farm Show Weather
January 2 - 2007 Weather in Review
2007
December 26 - The history and climatology of White Chrismas
December 12 - How Hollywood portrays tornadoes
December 5 - Challenges in forecasting winter precipitation
November 21 - Thanksgiving weather in Pennsylvania
November 7 - Tropical cyclones in November
October 10 - Christopher Columbus and the weather
October 3 - 50th anniversary of Sputnik
September 26 - Changes in National Weather Service warnings
September 19 - Lightning and football
August 15 - Hurricanes Connie and Diane
August 8 - The Perseid meteoro shower
August 1 - The "average" summer of 2007
July 25 - How rare are 100-degree days in Pennsylvania
July 18 - Mesoscale Convective Complexes
July 4 - Weather on the original Fourth of July
June 6 - The "Blue Moon"
May 30 - A look back at the tornado outbreak of May 31, 1985
May 9 - 400th anniversary of Jamestown settlement
May 2 - Start of severe weather season in Pennsylvania
April 25 - The start of the 2007 MLB season
April 11 - Spring: Two steps forward, one step backward
April 4 - The event that got me into weather: The Superoutbreak
March 28 - Historic Pennsylvania floods
March 21 - The first day of spring
March 7 - Prevailing winds
Others of Interest
October 25, 2006 - Weather clues from the natural world
November 1, 2006 - Nor'easters and Ben Franklin