To see any new photos, go to the photo page. That page will show you directly which photos have been added and to which galleries (very helpful if you visit this site regularly). A list of general updates follows below:

• August 25, 2007
  Wow, five months went by without updating anything on this site apart from updating the guestbook spam filter.

  Last wednesday I finally had the money, time and motivation to process 36 of the 45 rolls that had been accumulating since March in my refridgerator waiting for development. I've had a busy time preparing for my summer research at Langmuir Lab.

  During my processing of those 36 rolls of film, Nikon finally came out with news on their full-frame digital D3. I think it is time to switch to digital for my 35mm-photography...

  Anyway, except for the photo of the month April, which will follow later, I updated all photos of the month - May (supercell lightning), June (shelfcloud), July (double rainbow) and August (bolt from the blue lightning). The summer of 2007 is being good to me so far photography-wise!

• March 24, 2007
  Added photos of the months November 2006 (twilight wedge), December 2006 (gravity waves), January 2007 (iridescence), February 2007 (stratocumulus) and March 2007 (pollen corona). My apologies that updating the photo of the month took a while!

• November 27, 2006
  Added photo of the month October 2006 (opposition light).

• October 10, 2006
  Added the photos of the months July 2006 (cloud-to-ground lightning), August 2006 (St. Elmo's fire) and September 2006 (Brocken spectre and glory).

• July 6, 2006
  Added the photos of the months February 2006 (Mt. Augustine volcano letting off steam after the January eruptions), March 2006 (Iridescence), April 2006 (Reddened rising moon), May 2006 (Rainbow with lightning) and June 2006 (Low-precipitation supercell near Oshkosh, Nebraska). Unfortunately I could not process films for many months due to my studies and travel; I had to process more than 80 rolls of film early July.

• February 6, 2006
  Added the photos of the months November 2005 (multiple exposure of sun), December 2005 (cumulus mediocris as seen from an airplane) and January 2006 (of the setting sun).

• November 20, 2005
  Added photos of the months September (a superior mirage) and October (a dewbow).

• September 1, 2005
  Added the photo of the month for August, of twilight lightning.

• August 21, 2005
  You can now order photos online on this website. Go to the order page to read more about this.

• August 15, 2005
  Changed the page width from 640 to 800 pixels.

• August 6, 2005
  Added the photos of the months June, of a red rainbow, and July, of lightning. This year I have had several good storms to photograph already, and the monsoon is just about to start. This is a big change compared to last year!

• May 31, 2005
  Added the photos of the months April and May, both of lightning. Also created a new gallery with spectacular photos of twilight lightning. This year's storm season took off with a good start, and the monsoon hasn't even arrived yet!

• March 8, 2005
  Added photo of the month February 2005, of altocumulus lenticularis.

• February 13, 2005
  Added new photos to the following galleries:

  Clouds/Low-level/Fog
  Clouds/Mid-level/Altocumulus
  Clouds/Mid-level/Altostratus
  Clouds/Mid-level/Castellanus
  Clouds/Mid-level/Floccus
  Clouds/High-level/Cirrocumulus
  Clouds/High-level/Cirrus
  Clouds/Cumuliform/Cumulonimbus
  Clouds/Cumuliform/Cumulus humilis
  Clouds/Cumuliform/Cumulus congestus
  Clouds/Cumuliform/Cumulus mediocris
  Clouds/Cumuliform/Fractocumulus
  Clouds/Thunderstorm types/Multicell
  Clouds/Thunderstorm types/Orphan anvil
  Clouds/Various/Lenticularis
  Clouds/Various/Mammatus
  Clouds/Various/Pileus
  Clouds/Various/Velum
  Clouds/Various/Horseshoe-vortices
  Clouds/Various/Cap clouds
  Clouds/Contrails/Contrails
  Clouds/Contrails/Distrails
  Clouds/Contrails/Contrail shear
  Clouds/Contrails/Contrail shadows
  

• February 12, 2005
  Added new photos to the galleries Astronomy/Deep-sky/Constellations, Astronomy/Deep-sky/Galaxies and Astronomy/Deep-sky/Star trails.

• February 7, 2005
  I (finally) added a mailing list to the site: from now on you can receive notifications of updates (new photos, new galleries and new sections) by email. You can subscribe here.

  I received several inquiries from visitors about whether such a list existed. I hope you will like this feature!

• February 2, 2005
  Added photo of the month January 2005 of a sunset on cirrus as seen from an airplane flying through the cirrus.

• January 29, 2005
  I added 21 new pages to the techniques section today:

  General photography - Using a tripod
  General photography - Digital weather photography
  General photography - Processing your own films
  General photography - Light metering
  General photography - Filters
  General photography - Exposure times, aperture settings and film speed
  General photography - Composition of the frame
  General photography - How to start with weather photography
  General photography - Macro photography
  Atmospheric optics - Hunting for superior mirages
  Atmospheric optics - Photographing Aurora
  Lightning - St. Elmo's fire
  Lightning - Ball lightning
  Lightning - Thunder
  Clouds - Photographing noctilucent clouds
  Clouds - Photographing common clouds
  Astronomy - Equatorial mounts for astrophotography
  Astronomy - Star trail photography
  Astronomy - Photographing Iridium flares
  Miscellaneous - Sun/moon multi-exposures
  Miscellaneous - Photographing snow crystals and rime (macro)
  

• January 26, 2005
  Added photo of the month December 2004, of dry heiligenschein photographed from an aircraft.

• December 24, 2004
  Today I must have seen some type of ball lightning or something, together with another person. It materialized in the middle of a room in Rio de Janeiro, Brazil. There were thunderstorms over the city, and an active storm had just passed. Noisy white sparks suddenly appeared in mid-air in a volume of about 5cm in diameter and the phenomenon, whatever it was, caused the lights in the room to flicker. My camera was ready but it lasted only a fraction of a second and caught me completely off-guard. I did take photos of the room after the incident.

• December 18, 2004
  Added photo of the month November 2004, of a spectacular fogbow.

• October 21, 2004
  Added photos of the months August 2004 (lightning), September 2004 (sunset) and October 2004 (hailstone).

• October 8, 2004
  I haven't had much of a chance to update this site over the past few months, for which I apologize. I didn't stop taking pictures, however! The photos of the months August and September should be online soon. Also, I am now finally accepting orders for photo prints up to about any practical size you like! Prices and details will be on this site soon.

• October 5, 2004
  Today, a major hailstorm hit the town of Socorro, New Mexico (USA), where I live. Hailstones measured up to and over 3" (8 cm) in diameter and caused widespread damage to trees, buildings and cars. I will publish some pictures of the damage and the hailstones themselves sometime in the near future. This storm was an extremely rare, one-in-a-lifetime occurence for this town in New Mexico. Not only was the hail much larger than anybody remembers falling here, there were also lots of large stones falling rather than just a few.

• July 29, 2004
  Added photos of the month for the months May 2004, June 2004 and July 2004. All happen to be digital photos - but I still use slide film!

• May 27, 2004
  Added photo of the month April 2004.

• April 8, 2004
  I finally started translating this whole site in Dutch language, besides the English, because of the significant number of people from my home country who visit my site. I don't know yet how long this will take, since the English language photo database is fairly substantial! I estimate it will take between a few weeks or months.

• April 4, 2004
  Added photo of the month March, of a green flash during sunrise.

• March 29, 2004
  Not so uninteresting weather after all: today my longtime hunt for the superior mirage finally paid off! I went out at 5 in the morning to drive up the Magdalena Mountain Ridge (New Mexico) at 9000 ft to photograph the green flash at the rising sun. There, for a minute, appeared a mountain to the eastern horizon with a very small inverted image. I'm not sure yet if my photos turned out well, since exposure time was rather long and the photos may be blurred. If not, I will be posting them here soon (I hope!).

• March 2, 2004
  Added photo of the month February, of M42, the Orion nebula. Not much interesting weather going on these days!

• February 29, 2004
  I found out, thanks to my sister who pointed it out to me, that most of the banners on the front page don't show up if you're using internet security software, because the word "banner" appears in the graphical image files and it gets filtered out as being commercial advertising! I'm never too old to learn. After renaming some files and folders on the site, it should load fine on those computers well now.

  I surely hope those internet security software companies are not going to decide to filter sites containing the word "weather" or "lightning" as well, or I will be in trouble.

• February 20, 2004
  Added photos to the lunar eclipse photo gallery and the gegenschein photo gallery. You can view them in the photo updates section.

• February 13, 2004
  Added 3 photos to the Aurora Borealis photo gallery. You can view them in the photo updates section.

• January 31, 2004
  Processed all films from the last months and added (finally!) the photos of the month November 2003 (Aurora Borealis), December 2003 (smog) and January 2004 (subhorizon halos).

• January 21, 2004
  I arrived back in the USA! Now, it's back to school (studying). My apologies that I could not reply some of your emails yet, I will try to do that in the coming weeks.

• November 22, 2003
  I will probably not be able to answer email or update my site until the end of January 2004. Please come back again by then for new photos of the month and other updates!

• November 21, 2003
  Added the photo of the month October, of anticrepuscular rays.

• October 15, 2003
  I finally had a chance to change the site to a light background. I was planning to do this for a long time, since I got tired of a black background. A light background makes the photos look somewhat better, in my opinion, and black text on white doesn't hurt the eyes as much as white text on black. Also updated the page about myself.

• October 12, 2003
  Added photo of the month, for the months August 2003 and September 2003.

• September 6, 2003
  I added another collection of lightning photos, taken in the summer of 2003 in New Mexico, USA (the monsoon season!). You can view them here or in the 2003 lightning gallery.

• September 2, 2003
  Added photos to several galleries in the lightning section. You may view the new photos at the photo update page.

• August 27, 2003
  I started adding several new galleries to the lightning photo gallery. The 2001 and 2003 galleries will be online but no photos are available yet. It may take me a few days up to a week to put them online.

• August 14, 2003
  Added new photo of the month for July. Lightning once again! The August photo of the month may be of lightning as well, since I have a good one ready. I'll wait for the end of August to post it to see if I get anything more spectacular.

• August 1, 2003
  Added photos to several galleries. You can view the newly added photos at the photo update section.

• August 1, 2003
  Added new title to the literature list.

• July 17, 2003
  Added all relevant link requests that I have received over the past several months to the links section. If you submitted a link and your link is not listed, you can contact me.

• July 11, 2003
  Reorganized the links section.

• July 9, 2003
  Added photo of the month for the month June 2003.

• May 18, 2003
  Added photo of the month, for the months April 2003 (dust devil) and May 2003 (lunar eclipse of May 15/16).

• May 17, 2003
  Added new photos to several galleries. You can view the new photos at the photo updates section.

• May 16, 2003
  This is the day after the spectacular lunar eclipse of May 15/16 2003, and I finished another page in the Techniques section: you can read all about photographing the next lunar eclipse on Nov. 9 2003 here.

• April 22, 2003
  Added a new page to the Techniques section: questions about the rainbow.

• April 9, 2003
  Added photo of the month, for the month March 2003.

• March 29, 2003
  The Dutch version of the tornado generator construction plans is finally back online. There is now also a page with some additional information. You can read this information and download the English or the Dutch PDF construction plans here.

• March 28, 2003
  Created a new gallery and added photos to it:

  Miscellaneous - Landscapes - Sedona, Arizona.

  You can view the new photos at the photo updates section.

• March 23, 2003
  Added photo of the month, for the months January 2003 and February 2003.

• March 21, 2003
  Added new photos to the following galleries:

  Atmospheric Optics - Atmospheric refraction - Distortion of sun & moon
  Atmospheric optics - Atmospheric refraction - Inferior mirages (water)
  Miscellaneous - Ice & frost - Ice-coated vegetation
  Miscellaneous - Ice & frost - Icicles
  Miscellaneous - Ice & frost - Lake ice

  You can view the new photos at the photo updates section.

• February 23, 2003
  Finished checking and reindexing the lightning, atmospheric optics and various links pages. The links I received over the past several months are being added now.

• February 22, 2003
  Added the information page about the lightning mailing group.

• February 13, 2003
  Graduate studies are taking over! As of yet, I have not had much opportunity to process new rolls of film and put online a new photo of the month. I am not sure if I can do this, or any other photo updates, before the end of March. Please visit back at that time for new photos.

• February 12, 2003
  A spectacular halo display occured around noon today over New Mexico, USA. Halos included a complete, bright parhelic circle, four parhelia, 22-degree halo and circumscribed halo. Photos will come soon.

• January 17, 2003
  Fixed a bug in the guestbook, and started updating the links sections.

• December 17, 2002
  Installed the new site on the server.

• December 16, 2002
  Finished adding photos to the other galleries and checked all the galleries for dead links

• December 16, 2002
  Finished converting the guestbook.

• December 15, 2002
  Added photo of the month for the month December 2002.

• December 13, 2002
  Cleaned up (removed low-quality photos) and finished the atmospheric optics photo gallery.

• December 11, 2002
  Added about 175 new photos to the galleries in Astronomy and Miscellaneous

• December 10, 2002
  I added and revised the descriptions of all photo galleries. I put online a few new lightning photos of 2000 and 2002. Lightning photos from 2001 will be added later; I have many more photos but the process of scanning and editing is a slow one. Please bear with me while I process everything worthwhile of the past 400 rolls of film!

• December 8, 2002
  Optimized the navigation toolbar.

• December 4, 2002
  Added an expand/collapse feature for subcategories in the photo gallery for easier navigation.

• December 3, 2002
  Updated and added several gallery descriptions in the clouds, astronomy and miscellaneous galleries.

• December 2, 2002
  Updated several descriptions in the clouds photo gallery

• December 1, 2002
  Added new titles to the literature section.

• November 28, 2002
  Added book reviews to the literature section.

• November 25, 2002
  Added photos of the month, for the months June 2002, July 2002, September 2002, October 2002 and November 2002.

• November 18, 2002
  Added new photos to the following galleries: clouds/altocumulus, clouds/storms/tornadoes, clouds/contrails/shadows, clouds/contails/trails, clouds/storms/updraft, clouds/storms/skyscapes, clouds/horseshoe-vortices, clouds/storms/haboob, clouds/storms/turrets, clouds/storms/multicell, clouds/storms/hail fallstreaks, clouds/storms/mammatus, clouds/storms/shelfcloud, clouds/pileus, clouds/praecipitatio, atmospheric optics/halos/circumscribed halo, atmospheric optics/halos/22 deg. halo, atmospheric optics/dew bow, atmospheric optics/primary rainbow, atmospheric optics/secondary rainbow, atmospheric optics/inferior mirages (road), atmospheric optics/inferior mirages (land), atmospheric optics/Brocken spectre, atmospheric optics/fog bow, atmospheric optics/cloud bow, atmospheric optics/flattened sun, atmospheric optics/atmospheric absorption, atmospheric optics/anticrepuscular rays, atmospheric optics/corona, atmospheric optics/iridescence, atmospheric optics/glory, atmospheric optics/sunset colors (precipitation), atmospheric optics/halos/infralateral arcs, miscellaneous/landscapes/Carlsbad Caverns (NM, USA), miscellaneous/ice flowers, miscellaneous/hailstones

• November 1, 2002
  Converted the tornado machine document into a PDF file.

• August 30, 2002
  Added photo of the month, for the month August 2002. Note: POTMs for June and July will be added later

• August 15, 2002
  I'm back in the USA! This time it will (I assume) take a while for me to leave again - I will be here for the coming 4 or 5 years for doctoral studies in atmospheric physics. I received a PhD position at NMIMT in New Mexico, and will be studying and improving 3-D lightning mapping techniques to display lightning in thunderstorms. I anticipate to see and document a vast number of optical phenomena, clouds and lightning here in New Mexico.

• June 8, 2002
  Added photo of the month, for the month May 2002

• April 28, 2002
  Added photo of the month, for the month April 2002

• March 16, 2002
  Added photo of the month, for the month March 2002

• February 28, 2002
  Added photo of the month, for the month February 2002

• January 18, 2002
  Added photo of the month, for the month January 2002

• December 23, 2001
  Added photos of the month, for the months November 2001, December 2001

• October 15, 2001
  Added photos of the month, for the months August 2001, September 2001, October 2001

• July 29, 2001
  Added photos of the month, for the months June 2001, July 2001

• July 20, 2001
  Added new photos (Lightning, New Mexico USA, of July 2000)

• July 18, 2001
  Added new photos (Aurora Borealis of 11-12 April 2001)

• July 17, 2001
  Added new photos (sunset, rainbows, contrails and mirages)

• June 8, 2001
  Added new photo of the month: May 2001

• April 12, 2001
  Added new photos of the month, for the months March 2001, August 2000

• February 16, 2001
  Added new photos of the month, for the months December 2000, January 2001, February 2001

• December 10, 2000
  Added a guest photo gallery. Now, you can submit your own photographs for display on www.weather-photography.com.

• December 3, 2000
  Added new photos of the month, for the months September 2000, October 2000, November 2000

• October 11, 2000
  Added the Dutch translation of the tornado generator construction plans.

• October 10, 2000
  Changed the look of the photo galleries of all four subsites, for better navigation and presentation of phenomena / descriptions.

• September 10, 2000
  Split up the links sections into one main section and four sub-sections (lightning, atmospheric optics, clouds and astronomy).

• September 9, 2000
  Added information on how to purchase prints.

• September 8, 2000
  Redesigned front page of site.

• September 8, 2000
  Added new photo of the month: August 2000.

• September 4, 2000
  Added 66 new of the photos I took between May 6th and August 22nd, 2000. All are taken in the USA, in Kansas, New Mexico and Arizona. These photos are a few of the thousands of photos I have taken the past few months. Most of them will be put online in a few months.

• September 4, 2000
  Created the main what's new page (this page).