Hurricane Katrina Live Thread, Part III

NHC-NOAA ^ | 27 August 2005 | NHC-NOAA

[NautiNurse]

Hurricane Katrina continues to strengthen in the Gulf of Mexico. Currently, the forecast models are converging upon New Orleans. However, all interests in the northern Gulf of Mexico should follow the path of this storm, and be prepared for a major hurricane landfall. Throughout Friday, the official track forecasts moved west, as Hurricane Katrina delayed making the anticipated northwest turn.

The following links are self-updating.

Public Advisory Currently published every 3 hours 5A, 8A, 11A, 2P, etc. ET
NHC Discussion Published every six hours 6A, 11A, 6P, 11P
Three Day Forecast Track
Five Day Forecast Track
Navy Storm Track
Katrina Track Forecast Archive Nice loop of each NHC forecast track for both three and five day
Forecast Models
Alternate Hurricane Models via Skeetobite
Buoy Data Florida
Bouy Data Louisiana/Mississippi

Images:

New Orleans/Baton Rouge Experimental Radar Subject to delays and outages - and well worth the wait

Mobile Long Range Radar Loop

New Orleans/Baton Rouge Radar

Ft. Polk, LA Long Range Radar Loop

Northwest Florida Long Range Radar

Storm Floater IR Loop
Storm Floater Still & Loop Options
Color Enhanced IR Loop

Other Resources:

Hurricane Wind Risk Very informative tables showing inland wind potential by hurricane strength and forward motion
Central Florida Hurricane Center
Hurricane City
Crown Weather Tropical Website Offers a variety of storm info, with some nice track graphics

Live streaming:

WFOR-TV Miami: http://dayport.wm.llnwd.net/dayport_0025_live
WWL-TV New Orleans: mms://beloint.wm.llnwd.net/beloint_wwltv
HurricaneCity.com: http://hurricanecity.com/live.ram
WTSP-TV Tampa: mms://wmbcast.gannett.speedera.net/wmbcast.gannett/wmbcast_gannett_jan032005_0856_78183
WKRG-TV Mobile mms://wmbcast.mgeneral.speedera.net/wmbcast.mgeneral/wmbcast_mgeneral_jul072005_1144_93320

Katrina Live Thread, Part II
Hurricane Katrina Live Thread, Part I
Tropical Storm 12

Category	Wind Speed	Barometric Pressure	Storm Surge	Damage Potential
Tropical Depression	< 39 mph < 34 kts			Minimal
Tropical Storm	39 - 73 mph 34 - 63 kts			Minimal
Hurricane 1 (Weak)	74 - 95 mph 64 - 82 kts	28.94" or more 980.02 mb or more	4.0' - 5.0' 1.2 m - 1.5 m	Minimal damage to vegetation
Hurricane 2 (Moderate)	96 - 110 mph 83 - 95 kts	28.50" - 28.93" 965.12 mb - 979.68 mb	6.0' - 8.0' 1.8 m - 2.4 m	Moderate damage to houses
Hurricane 3 (Strong)	111 - 130 mph 96 - 112 kts	27.91" - 28.49" 945.14 mb - 964.78 mb	9.0' - 12.0' 2.7 m - 3.7 m	Extensive damage to small buildings
Hurricane 4 (Very strong)	131 - 155 mph 113 - 135 kts	27.17" - 27.90" 920.08 mb - 944.80 mb	13.0' - 18.0' 3.9 m - 5.5 m	Extreme structural damage
Hurricane 5 (Devastating)	Greater than 155 mph Greater than 135 kts	Less than 27.17" Less than 920.08 mb	Greater than 18.0' Greater than 5.5m	Catastrophic building failures possible

[Termite_Commander]

No, it can't be that bad. It must mean something else, or an error/typo perhaps.

A hurricane with 700 mb pressure would be a Cat 8 or something.

[Ingtar]

I've been watching it on RADAR for a bit. Last night and early today she was right on track on the little blots they put on the RADAR image. Now she seems to have jogged north noticably and is paralleling the track. That would put her in a bit east of the forecast, wouldn't it?

[mewzilla]

I think that 700 mb is at a high elevation?

[Howlin]

For right now, but who knows if or when she might jog back.

[mwp99]

That's the height of the 700 mb level.

[snowsislander]

holy cow, 700 mb, can that be right?

Do major hurricanes always have such low pressures?

I think that the important millibar figure is the one on line H:

H. EXTRAP  944 mb

but I don't know much about all of this weather-reading, so hopefully more knowledgeable folks will let us know for sure.

[Termite_Commander]

Yeah, that's probably it. Luckily, we have somebody here who can explain these things to me so I can pretend to know all about it. =)

[numberonepal]

Are you the one that had the extrapolitive 3D model that showed the future direction of the storm through "the wall".

[beyond the sea]

It's rare to see them that tightly clustered.

Yes, this is bizarre.

[dawn53]

I know it was mentioned. I saw the question, which peaked my interest. Then I looked at a sat view and saw the same thing.

But I never saw an answer...yeah, it would be nice to hear an answer from one of the weather gurus.

[mewzilla]

I love FR :)

[juzcuz]

both for family members still in town

------

PRAY...

[NautiNurse]

Excellent reference--thanks.

[rickylc]

ok, I see that now, thanks for the help!!

[Knitting A Conundrum]

We evacuated when Camille was coming up and we didn't know exactly where it was going to hit...but that's the only one I did evacuate for. Lived in NO from 65 to 93...had lots of storms come in, but I don't mess with category 2 or better ones myself...I have to safely be able to evacuate up or get out...

[Tarheel]

Sounds like the end of the 'Titanic'.

[shield]

Doc Frank says that the high is moving slower than expected...Katrina is following it...if the high doesn't speed up, we, especially Galveston needs to watch this closely...12% for Galveston now. He's says ck in the AM, if the high is still moving at the rate of speed it is now...Galveston could be the strike point of Katrina.

[beyond the sea]

You must love living in Louisiana....we have our share of bridges!

I live in Pittsburgh, we have more than anyone.

[mewzilla]

Gilbert checks in at second lowest recorded pressure, IIRC, with a reading of 888. So 944 ain't good, but I guess it could be worse. I forget which storm had the lowest. I'll see if I can find that.

[Termite_Commander]

Wasn't it that unnamed hurricane that hit the keys in the early 1900's?