Historic Heat Wave

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If you think it's been hot in West Michigan the last few days, you should compare this summer to the summer of 1953.

In late August, a large area of hot air built into the region, setting six days of record high temperatures in Grand Rapids over a span of eight days.

The high temps were:

Date                      High Temperature
Aug. 27, 1953                   95°
Aug. 28                            94°
Aug. 29                            95°
Aug. 30                            91°
Aug. 31                            97°
Sept. 1                             97°
Sept. 2                             93°
Sept. 3                             95°

For better or worse, significantly cooler air is on the way for West Michigan this weekend!

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(Photo: Susan Yunker, Murray Lake)
On a Sunday afternoon, I went to work at my previous station in South Bend to find an ominous message issued by the National Weather Service office in New Orleans.  The statement, in great detail, foreshadowed the devastation that would follow as Hurricane Katrina made landfall that night:
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URGENT -- WEATHER MESSAGE 
NATIONAL WEATHER SERVICE NEW ORLEANS LA 
1011 AM CDT SUN AUG 28, 2005 

 ...DEVASTATING DAMAGE EXPECTED... .

HURRICANE KATRINA...A MOST POWERFUL HURRICANE WITH UNPRECEDENTED STRENGTH...RIVALING THE INTENSITY OF HURRICANE CAMILLE OF 1969. 

MOST OF THE AREA WILL BE UNINHABITABLE FOR WEEKS...PERHAPS LONGER. AT LEAST ONE HALF OF WELL CONSTRUCTED HOMES WILL HAVE ROOF AND WALL FAILURE. ALL GABLED ROOFS WILL FAIL...LEAVING THOSE HOMES SEVERELY DAMAGED OR DESTROYED. 

THE MAJORITY OF INDUSTRIAL BUILDINGS WILL BECOME NON FUNCTIONAL. PARTIAL TO COMPLETE WALL AND ROOF FAILURE IS EXPECTED. ALL WOOD FRAMED LOW RISING APARTMENT BUILDINGS WILL BE DESTROYED. CONCRETE BLOCK LOW RISE APARTMENTS WILL SUSTAIN MAJOR DAMAGE...INCLUDING SOME WALL AND ROOF FAILURE. 

HIGH RISE OFFICE AND APARTMENT BUILDINGS WILL SWAY DANGEROUSLY...A FEW TO THE POINT OF TOTAL COLLAPSE. ALL WINDOWS WILL BLOW OUT. 

AIRBORNE DEBRIS WILL BE WIDESPREAD...AND MAY INCLUDE HEAVY ITEMS SUCH AS HOUSEHOLD APPLIANCES AND EVEN LIGHT VEHICLES. SPORT UTILITY VEHICLES AND LIGHT TRUCKS WILL BE MOVED. THE BLOWN DEBRIS WILL CREATE ADDITIONAL DESTRUCTION. PERSONS...PETS...AND LIVESTOCK EXPOSED TO THE WINDS WILL FACE CERTAIN DEATH IF STRUCK. 

POWER OUTAGES WILL LAST FOR WEEKS...AS MOST POWER POLES WILL BE DOWN AND TRANSFORMERS DESTROYED. WATER SHORTAGES WILL MAKE HUMAN SUFFERING INCREDIBLE BY MODERN STANDARDS. 

THE VAST MAJORITY OF NATIVE TREES WILL BE SNAPPED OR UPROOTED. ONLY THE HEARTIEST WILL REMAIN STANDING...BUT BE TOTALLY DEFOLIATED. FEW CROPS WILL REMAIN. LIVESTOCK LEFT EXPOSED TO THE WINDS WILL BE KILLED. 

AN INLAND HURRICANE WIND WARNING IS ISSUED WHEN SUSTAINED WINDS NEAR HURRICANE FORCE...OR FREQUENT GUSTS AT OR ABOVE HURRICANE FORCE...ARE CERTAIN WITHIN THE NEXT 12 TO 24 HOURS. 

ONCE TROPICAL STORM AND HURRICANE FORCE WINDS ONSET...DO NOT VENTURE OUTSIDE!
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Studies by Congress and the National Weather Service after Katrina suggested that this statement helped residents understand the need to evacuate and perhaps saved thousands of lives.  The bulletin was described as "the most chilling ever issued by the service."

Blitz Forecast - 08.27.10 - Week 1

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What a great night for high school football!  Don't be surprised if you see me at a couple of games around the area this season... I'm planning to fill in as a photographer for a few weeks! -Jon

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Is the moon getting smaller?

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Got this Facebook post from Amanda Monday:
"Hey Jon, I was wondering if could tell me about the moon getting smaller. I've heard some ppl talking about it."

Believe it or not, there are actually two things Amanda might have been referring to:

- The full moon today (August 24th) is the smallest of 2010, because it is the furthest away from the earth.  The technical term for this is the "apogee" of the moon, which occurs about 12 hours after the full moon.  That means that this full moon appears about 12% smaller from our eyes than the biggest one, which was in late January.

- A recent article explains how a NASA orbiter has found "wrinkles" on the moon's surface, which suggests that the moon is actually shrinking.


Think of it like a cake or something where the top wrinkles and cracks as it cools.

The process doesn't suggest any major impacts on the Earth, but it sure is interesting!

"Two Moons?" Not So Much...

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In an annual ritual, I've received my first e-mail about Mars looking as big as the moon coming up in late August.  The people who forward these e-mails always mean well, but you should know that the claims of the e-mail are not true.

There are different forms of the text, but the one I see most often says something like "Mars will look as large as the full moon to the naked eye."  Like most prolonged myths, it's partially based in fact -- an event sort of like this occurred in 2003.  But even then, you had to use a 75x telescope in order to have Mars appear to be the same size as the moon.

When I get e-mail forwards like that, I always check them out at snopes.com.  Here's their page about the "Mars Spectacular" e-mail.

Knowledge is power!

Memorial Day Flash Flooding

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  STP_KGRR_053110.jpegHere is an impressive image of the storm total precipitation estimated by the Grand Rapids National Weather Service Doppler radar from early Monday evening.

For nearly three hours between 2 and 5 PM, strong thunderstorms produced torrential downpours and intense cloud-to-ground lightning.  Spotter reports and radar data indicated that 5 to as much as 7 inches of rain fell around Belmont and Rockford in north/central Kent County!  Small creeks and side street drains turned into small rivers with numerous basements flooded and a section of Childsdale Road near the Rogue River washed out.

Locations that received heavy rain on Memorial Day will have a chance to dry out on Tuesday as sunshine returns with afternoon temperatures near 80 degrees for the first day of June.  More showers and a few thunderstorms will be possible again on Wednesday as the beginning of June will feature near to a bit below normal temperatures and occasionally wet weather.

 

 

Severe Weather Awareness Week

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Midwest Meteor Entry Seen on Doppler Radar.

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Doppler Radar image of meteor trail over southwest Wisconsin at 11:02 PM EDT, Wednesday, April 14 - National Weather Service Forecast Office Davenport, IA

A brilliant, exploding meteor called a "bolide" lit up the skies across much of the upper Midwest late Wednesday evening.  Sightings of the fireball extended as far east as Michigan and as far west as North and South Dakota. A number of building cameras and even a police car dashcam captured the object as it streaked across the sky and exploded somewhere above southwest Wisconsin.  This particular radar image shows the debris trail left by the meteor when it was around 24,000 feet above ground level.  A number of witnesses near the entry site reported bright flashes of green and white light accompanied by a series of sonic booms.

Meteor scientists estimate the object was made up of asteroid material and was about one yard in diameter.  It is very likely that some of the space invading debris reached the ground after the parent object exploded.  If recovered, any fragments would be referred to as meteorites.    

 

 

Bye Bye Sprummer!

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hail_damage_Kalamazoo_county_040510_JimGobles.JPGHail damage from Monday night's severe storm in southern Kalamazoo County - Photo by Jim Gobles

We can say goodbye to our early spring/summer weather (SPRUMMER).  It was a week ago that we enjoyed sunny skies and record high temperatures in the lower 80s.  The first severe storms of the spring pounded portions of southern Lower Michigan on Monday night.  One of the hardest hit areas was in southern Kalamazoo County near and south of Schoolcraft and Vicksburg where hail up to 2 inches in diameter and wind gusts over 70 mph caused significant damage.  We can look forward to temperatures being some 40 degrees colder this Thursday afternoon from  what they were a week ago and it is not impossible that scattered light rain showers could be mixed with a few wet snow flakes!

   

Warm Weather Spring Chorus

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A sure sign of spring is the emergence of the frogs and their nighttime mating chorus throughout the woods and wetlands of West Michigan.  The recent heat wave has allowed for a fury of activity.  The wood frog, chorus frog, spring peeper, and tree frog are the most common species of frogs responsible for that familiar midnight choir.  Consider yourself fortunate if you live in an area where you can listen in on these critters.  It is one of those annual events that signal the change of seasons that make Michigan such a wonderful place to live!