What's new in JetStream
June 9, 2010
Tweaked the Hydrologic Cycle section. The main JetStream page continues about the five basic components of the cycle but a JetStream Max section was added to go into further detail. The downloadable Water Cycle Chart was also tweaked. A Water Cycle wheel was added. Finally, a new learning lesson was added help in the understanding the water cycle.

March 30, 2010
Added a page with links to all JetStream's CoolStuff activities. There are five basic online activities. The sliding puzzle and online coloring activity lists are twice as long as the other three lists as they are repeated on the weekends.

March 12, 2010
Some minor updates: hail size criteria for a severe thunderstorm has been changed from ¾" to 1" and the National Hurricane Center has revised the Saffir-Simpson scale for rating hurricanes. Added a lesson plan for plotting the extent of the wind filed around a hurricane based upon the National Hurricane Centers forecast/advisory. That lesson plan is found in a new Take it to the MAX! section describing a hurricane's damage potential. There is also a new wheel to help show how the hurricane damage potential increase with increases in wind speed.

August 21, 2009
Added a top to the beginning of the Synoptic Meteorology section on how to read the time in National Weather Service images. It includes an interactive map of the 24 times zones around the world. The interactive map also displays the current time around the world in each zone provided the clock on the your local computer is correct.

October 24, 2008
Updated some graphics in the Thunderstorm section as well as rewrote the Thunderstorm type section. Another slow process underway is providing JetStream en Español. The beginning of this effort can be seen in the section about the National Weather Service. Look for the link to the Spanish version in the upper right, below the NWS emblem.

December 14, 2007
Added a Take it to the MAX! webpage describing CoCoRaHS which offers a unique way you can help fill gaps in the rainfall data by becoming a volunteer and taking measurements of precipitation from your location.

October 28, 2007
Added a link to the front page of JetStream called "Today's Weather Activity". These activities are Java-based and change each day.
  • Monday is Sliding Puzzle day.
  • Tuesday is Word Search day.
  • Wednesday is Concentration day (Similar to the classic TV show where you must solve the rebus).
  • Thursday is "Coloring Your World" day.
  • Friday is Jigsaw Puzzle day.
  • The sliding puzzle and coloring activities repeat each weekend, usually with different graphics.

October 8, 2007
Finally, the long promised rewrite of the underlying HTML. Call it JetStream 2.0 if you will. There are many changes to the content as well. The Doppler Radar section in the previous version was separated from the Remote Sensing section. The El Niño section was expanded. Some graphics were recreated and hopefully improved. The weather safety posters were tweaked. More questions were added to the online quizzes. And many more changes.

January 25, 2007
From the "best laid plans of mice and men" department JetStream is under going, albeit very slowly as time permits, an html rewrite to underlying html code for compliance with xhtml web standards and to allow and to fix the printing issue (a problem since inception). The original intention was that as each section was completed that it would be posted. However, in practice, it will not work as neatly as anticipated so the rewrite will not be be posted until the entire site can be changed.

June 27, 2006
Tweaked the Tropical Cyclone section slightly, mainly to separate the cyclone classification into is own page. Also added a NASA movie the covers the life of Hurricane Wilma showing how the sea surface temperature changes as it passes various locations.

May 26, 2006
Added a 2 x 3 feet hurricane tracking poster for plotting tropical cyclones to the downloads section. The press quality PDF file is a little over 1.25 mb in size.

May 4, 2006
Not really a "What's New" but more of a "Why no change". There have been requests to disable the "Back" button on the test pages. Apparently, some students, after taking a quiz and seeing the correct answers, will use the back button to correct their quiz and resubmit the test resulting in a passing grade.

After some consideration, we have elected to not implement this feature. The reason is it violates the Government's 508 rules concerning accessibility. We would also be placing undue hardship on those unable to use a mouse. While we are honored the quizzes have been used in formal education settings (as was our intent), we want to allow as many as possible the opportunity to enjoy the thrill of accomplishment by achieving a passing grade.

The quizzes (question and detractors) will remain randomly generated each time the page is loaded. We also continue to provide the quizzes in both pdf and Word document formats (with answer keys) in the Appendix should you desire a more controllable format. With these files you can reorder the questions/answers yourself so they do not match the answer key. Thank you for understanding.

March 29, 2006
Added the "long promised" new section about the Ocean. It includes six new "learning lessons".

February 22, 2006
Updated the Doppler radar section to reflect the current version of the NWS Doppler radar web display.

February 2, 2006
National Weather Service today announced plans to implement the Enhanced Fujita (EF) Scale to rate tornadoes to replace the original Fujita (F) Scale. The EF Scale will continue to rate tornadoes on a scale from zero to five, but ranges in wind speed will be more accurate with the improved rating scale. The National Weather Service expects it to be fully implemented by February 2007. (See the new scale)