Happy Spring! Today is the Spring or Vernal Equinox. Equinox is latin for “equal night”. Every place on the globe gets roughly 12 hours of daylight today and 12 hours of night. At the North Pole, the sun rises for the first time in 6 months and at the South Pole, the sun sets – after a month of twilight transition, they’ll have four months of darkness. The sunset and sunrise times don’t quite add up to 12 hours today. That’s because we don’t measure sunrise and sunset from the middle of the sun. Sunrise is the moment the first tip of the sun appears over a flat horizon. Sunset is when the last tip of the sun disappears over a flat horizon. The second reason is that the sun’s rays bend just a big as they enter the Earth’s atmosphere. Those two factors give us a few extra minutes between sunrise and sunset.
I’m off to the dentist in the late morning…I’ll add more later. With a continuing chance of a shower or t-shower today (best chance south of G.R.) – I’ll leave the radar up.
Check out the slow-mo lightning that was shot by Tim Mullen in G.R. last night around 2 am. It’s on my Twitter page. I often have time to throw something up on Twitter, so if you like, you can follow me on Twitter and get some info. and pics. and video there.
Links: Here’s Grand Rapids radar and Northern Michigan radar, Milwaukee radar, Northern Indiana radar, Chicago radar, Detroit radar, Regional radar, the Updated GRR NWS Short Term Discussion. Here’s College of DuPage Radar Map (pick any radar in the U.S.), College of DuPage Grand Rapids radar, the West Michigan Lightning Tracker, National Lightning Tracker, the local warning/advisory map, the National warning/watch/advisory map, and a surface weather map. Here’s the 84-Hour snow forecast from the NAM model and the 120-hour snow forecast from the GFS model. You can checkout the latest Grand Rapids NWS discussion, the Northern Indiana NWS discussion (includes the Michigan Counties that border Indiana), the discussion for Northern Lower Michigan, and Eastern Lower Michigan. Here’s the Spyglass Condos Weather Station the S. Haven GLERL station, the Muskegon GLERL station, the Grand Haven Steelheaders webcam and weather station, and the weather station at Holland State Park. Check out the links to webcams. Here’s the infrared satellite loop (night) and the visible satellite loop (daytime), Lake Michigan water temperatures (summer). Here’s recent storm reports from SW Michigan, Northern Michigan, NE Illinois, SE. Wisconsin, Upper Michigan and E. Michigan. Check out the wind and wave height at the South Mid-Lake Michigan Buoy (Apr. to Nov. only), the North Mid-Lake Michigan Buoy (Apr. to Nov. only), the buoy at Big Sable Point near Ludington and the weather station on the beach at St. Joseph. Here’s Michigan ski conditions. Cool U.S. satellite loop.