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NWS Warning - I have never seen anything like this.

PostPosted: Sun Aug 28, 2005 7:29 pm
by Lance
I originally found this on GLP and thought it was fabricated. It is not. This is an actual warning issued by the National Weather Service regarding Hurricane Katrina.

Read this and other warnings at The NWS Site.

WWUS74 KLIX 281550
NPWLIX

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!

PostPosted: Sun Aug 28, 2005 7:48 pm
by Cl1mh4224rd
Umm... yikes. :shock:

PostPosted: Sun Aug 28, 2005 8:27 pm
by Lance
Cl1mh4224rd wrote:Umm... yikes. :shock:

Ya think?

PostPosted: Mon Aug 29, 2005 7:53 pm
by ToSeek
And some people still stayed put and are now screaming to be rescued. :roll:

PostPosted: Mon Aug 29, 2005 9:06 pm
by Superluminal
Some of the first reports I've heard, the eye veered to the east and didn't make a direct hit on N.O. Part of the Superdome roof was ripped off but there has been no flooding so far.

One report yesterday said, "There are only five catagorys for hurricanes. But if we were create a cat. 6, Katrina would be the first."

PostPosted: Wed Aug 31, 2005 2:56 pm
by Cl1mh4224rd
Superluminal wrote:One report yesterday said, "There are only five catagorys for hurricanes. But if we were create a cat. 6, Katrina would be the first."

Makes sense, sort of... The current categories are 20MPH increments of wind speed (155MPH for category 5), and Katrina was up around 175MPH.

The thing is, Katrina wasn't the first to have wind speeds that high. Gilbert, in 1985, had sustained winds peak at 185MPH. Camille's sustained winds reached 190MPH...

So... more sensationalism from the media it seems.

PostPosted: Wed Aug 31, 2005 3:33 pm
by Мастер
Cl1mh4224rd wrote:
Superluminal wrote:One report yesterday said, "There are only five catagorys for hurricanes. But if we were create a cat. 6, Katrina would be the first."

Makes sense, sort of... The current categories are 20MPH increments of wind speed (155MPH for category 5), and Katrina was up around 175MPH.

The thing is, Katrina wasn't the first to have wind speeds that high. Gilbert, in 1985, had sustained winds peak at 185MPH. Camille's sustained winds reached 190MPH...

So... more sensationalism from the media it seems.


Given that energy is a function of the square of speed, a given mass of air moving at 190 mph has 1.5 times as much energy as at 155 mph. But whether wind speed and destructive power are related in such a way, I do not know...

PostPosted: Wed Aug 31, 2005 6:05 pm
by Bill EE
The biggest problem with the hurricane scale is that it does not take into account the area effected. Katrina had the 4th deepest depression (lowest pressure) ever recorded. Many times, such storms are compact. For example, Charlie had a radius (distance from the center to the point where the winds were less than hurricane strength) of 10 miles. Katrina had a radius of 125 miles. Charlie was actually stronger when it hit land than Katrina but less damage resulted.