SJU Radar Loop

[Frank2]

Discounting distance from the San Juan site, the overall radar presentation is poor, and, as the NWS Miami forecaster noted, there is a southward component to the general motion:

http://radar.weather.gov/radar.php?rid= ... 1&loop=yes

[cycloneye]

I hope it's a radar glitch and not a real movement.Frank,you know why I am saying this.

[KWT]

Doesn't look WSW at all to me, following what looks to be the center its still WNW though the radar does seem to show the convection on the SE side coming into better range. Thats what I see anyway.

[AJC3]

Discounting distance from the San Juan site, the overall radar presentation is poor, and, as the NWS Miami forecaster noted, there is a southward component to the general motion:

http://radar.weather.gov/radar.php?rid= ... 1&loop=yes

WADR....I couldn't disagree more.

The center is difficult to locate and I think that they made the mistake of trying to follow some semblance of a clear spot, which really isn't the thing to do in this case. If you follow a more persistent feature, the higher DBZ band on the northeast side, you can see a slight westward bend at the very end, over the last hour.

I don't see any semblance of a southward jog.

[TS Zack]

Remember radar beam might be picking-up the mid-level center, not the actual low-level center.

[KFDM Meteorologist]

It's fixing to get going again

[Aquawind]

It's fixing to get going again

Chris was picking up steam about this time yesterday as well.

[linkerweather]

Discounting distance from the San Juan site, the overall radar presentation is poor, and, as the NWS Miami forecaster noted, there is a southward component to the general motion:

http://radar.weather.gov/radar.php?rid= ... 1&loop=yes

WADR....I couldn't disagree more.

The center is difficult to locate and I think that they made the mistake of trying to follow some semblance of a clear spot, which really isn't the thing to do in this case. If you follow a more persistent feature, the higher DBZ band on the northeast side, you can see a slight westward bend at the very end, over the last hour.

I don't see any semblance of a southward jog.

Agreed. I went back and looked at that loop in forward and reverse about 100 times with the intention of finding WSW and for the life of me couldn't. I do see one or 2 frames with perhaps a due west movement which I suppose technically was WSW of its trajectory but not a true WSW movement.

[Frank2]

I've been trying to find the radar ob from SJU, but, if I had to guess, I'd say that the operator would indicate "poor radar presentation" as far as overall banding is concerned, since, if I remember correctly, an overlay is also used to determine presentation (poor, fair, good, excellent).

And, as TS Zack mentioned, considering the distance, the beam is likely tilted upward, so, that's something else to consider - though it still doesn't look very organized - at least at that distance from the site...

Frank

[Blown Away]

Last few frames W or WSW, IMO!

[chris_fit]

Ok i have to agree with the WSW people now.... both IR and Radar show the storm moving WSW for the last few hours, even the last two recon fixes show a slight southern component. Comments?

[ericinmia]

The storm is over 130nm northeast of the radar station....

Radar bends as it goes out... hence the farther out a reflection comes form the more distorted it is. I wouldn't trust any of these wobbling comments until its closer to Cycloneye Between 7-9pm i see an average of barely wnw....

wobble wobbble wobbble...

[Normandy]

Its center has nearly cleared DR's lattidude...
How has it moved WSW for the last few hours?

[chris_fit]

Its center has nearly cleared DR's lattidude...
How has it moved WSW for the last few hours?

1. I can look at the radar (least accurate I would guess) and see a WSW jog.
2. I can look at the IR and WV loops and see no nothernly component at all.
3. Last recon fix showed it moved slighty South since the fix before that.

[Normandy]

Its center has nearly cleared DR's lattidude...
How has it moved WSW for the last few hours?

1. I can look at the radar (least accurate I would guess) and see a WSW jog.
2. I can look at the IR and WV loops and see no nothernly component at all.
3. Last recon fix showed it moved slighty South since the fix before that.

1. You can't see the center on radar, its VERY poorly defined.
2. See number 1.
3. How far south is the center fix (did u think that Chris might be organizing/weakening so the center is jumping around a bit?)

[mtm4319]

Its center has nearly cleared DR's lattidude...
How has it moved WSW for the last few hours?

1. I can look at the radar (least accurate I would guess) and see a WSW jog.
2. I can look at the IR and WV loops and see no nothernly component at all.
3. Last recon fix showed it moved slighty South since the fix before that.

1. You can't see the center on radar, its VERY poorly defined.
2. See number 1.
3. How far south is the center fix (did u think that Chris might be organizing/weakening so the center is jumping around a bit?)

Here are the last 4 VDM positions provided by recon (the circled X's).
http://img100.imageshack.us/img100/3299/chrisrecon14sm4.jpg

[chris_fit]

Just stating an observation from what i see....hehe... not calling it a trend or anything... IMO i see hints of a little WSW movement

[CourierPR]

I can read the latest bulletin from the NHC and find that the storm has moved west for the past few hours but remains on a general wnw course.

[tgenius]

Its center has nearly cleared DR's lattidude...
How has it moved WSW for the last few hours?

1. I can look at the radar (least accurate I would guess) and see a WSW jog.
2. I can look at the IR and WV loops and see no nothernly component at all.
3. Last recon fix showed it moved slighty South since the fix before that.

1. You can't see the center on radar, its VERY poorly defined.
2. See number 1.
3. How far south is the center fix (did u think that Chris might be organizing/weakening so the center is jumping around a bit?)

Here are the last 4 VDM positions provided by recon (the circled X's).
http://img100.imageshack.us/img100/3299/chrisrecon14sm4.jpg

Though recon hasn't been in there for about 1-2 hr now.. It may still be going WNW, but radar and IR Sat shows a W or WSW directional

[Stratosphere747]

If your using the link above...

That is the long range radar, try the short range and there is no WSW movement..