What Katrina’s Forecasters Are Thinking

I’m writing this from the Mohegan Sun Hotel in Eastern Connecticut. Tomorrow I’ll be emceeing a program for Norwich Free Academy. It starts so early, the only way to make it work was to stay on site.

What a spectacular hotel. It is attached to a spectacular casino, which would be a great place for me to go… but they don’t have poker anymore.

More on all of this tomorrow. Tonight there are bigger fish to fry in the form of Hurricane Katrina.

I’ve got WWL-TV streaming here on the computer. This is much better than watching coverage on the cable networks.

The cable networks are more polished and hard hitting. This local New Orleans station is providing the kind of news people there need.

Carl Arredondo, who I remember from The Weather Channel, is their chief meteorologist. He’s pretty solid.

I just watched another met do a fascinating explanation of the radar display. There’s no time for this except on New Orleans TV where tonight, there’s nothing but time!

I know what the forecasters are thinking… the local guys and the PhD’s at the Hurricane Center. Am I right? Did I miss anything?

Forecasters have spent the last few days scaring the living… well, you know… scaring people. Now they have a moral dilemma.

If the forecast comes true, people get hurt (maybe die) and property loss is great. If they’re wrong, they become the goat. “Why did you make us leave? For this?”

Snow forecasts are similar, but the downside to this is so much greater. This really is a life and death forecast. And, accuracy of track to the degree people want and a good intensity forecast are beyond the current state of the art.

We can be close. We cannot get it exactly right – ever, except maybe by accident.

Tonight I spoke with a friend in the Miami area. She had been through Hurricane Katrina last week when Katrina was a ‘minimal hurricane’. She only got her power back today. She still has no phone service.

New Orleans will be hit so much harder.

She also said, fill up the car tonight. Gasoline prices will skyrocket tomorrow. I’m afraid she’s right on that forecast.

Can’t Sleep

The alarm clock is set to go off in an hour. I can’t sleep. I’ve gotten a few hours of rest, no more.

Hurricane Katrina continues to be my concern. While I tossed and turned, Katrina was turning it up a notch.

REPORTS FROM AN AIR FORCE RECONNAISSANCE AIRCRAFT INDICATE THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED AND ARE NOW NEAR 145 MPH…WITH HIGHER GUSTS. KATRINA IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME ADDITIONAL STRENGTHENING IS POSSIBLE TODAY.

Only a tiny portion of Hurricane Katrina is visible on radar. It’s too far from shore – over 300 miles from New Orleans. The satellite image is very impressive with a clearly visible eye. That’s a change from earlier.

While I type this, I am watching WWL-TV New Orleans with streaming video. I think they’re doing an excellent job. I know WDSU is also feeding video, but I haven’t checked them yet.

The most surprising part of the coverage is the lack of traffic showing up on the live cameras. It’s late at night. At this point people are probably waiting until daylight.

WWL is going to learn this kind of coverage is a marathon, not a sprint. They’ll need to keep enough strength and staff to go another few days wall-to-wall.

Katrina And My Sleep Schedule

We’ve got a little coverage problem at work. I’ve been asked to work Sunday morning – airtime: 6:00 AM! So, I’ve napped a bit this evening and will try and catch a few more hours of sleep before then.

In essence, I’m trying to put myself on ‘jet lag’.

As long as I’m up, another look at the hurricane progress. Since leaving Florida, Hurricane Katrina has been left alone in the open Gulf of Mexico. She’s intensified, but not as much as I would have thought. Still, the official number at this hour is 115 mph – that’s a wickedly powerful storm.

The forecast path is still a worst case scenario for New Orleans&#185

A common hurricane misconception is that its winds are only affected by the outside environment. Is there warm water? Are the feeders and outflow unimpeded? Is the hurricane being dragged near rough terrain, like mountains on an island? Things like that.

Often missed is the eyewall cycle. Hurricanes are constantly reforming their eyewall, shedding the old one for a new one. During this cycle, the strength of the hurricane’s winds are temporarily reduced, only to spring right back up. If this happens as a storm approaches land, you’ve dodged a bullet… or at least lowered the caliber.

That’s what’s being talked about in this discussion from the Hurricane Center:

CHANGES IN THE INNER CORE STRUCTURE BEFORE LANDFALL MAY MODIFY THE INTENSITY OF KATRINA UP OR DOWN…BUT UNFORTUNATELY…THESE CHANGES ARE NOT POSSIBLE TO FORECAST NOWADAYS WITH OUR PRESENT KNOWLEDGE. WE CAN ONLY DESCRIBE THEM AS THEY OCCUR.

At the home page of the New Orleans Times-Picayune, there is no new news – none! The website seems to be untouched since Saturday morning, or more likely Friday night. I can’t believe that, under these critical circumstances, but it’s true.

WWL-TV is up-to-date, including information on “contraflow.” Some interstates and other highways now have all their lanes heading north! It works moderately well, but it’s confusing.

New Orleans needs to empty out now. There is no longer enough time to consider the forecast might be wrong. People staying in New Orleans, or much of the rest of Southern Louisiana, do so at their own peril.

&#185 – When meteorologists talk weather, they often abbreviate, using the airport identifier. Bradley International is BDL, Kennedy in New York is JFK, West Palm Beach is PBI. Some are non-intuitive. New Orleans is MSY. I cannot think of New Orleans without MSY popping into my head.