WPAC: BOPHA - Remnants

[supercane4867]

This is Hurricane Felix, 195kts wind measured by a dropsonde.



I wonder what will they found in Bopha if there's recon available, because it looks way more intense.

[ozonepete]

this is likely a sub 900 mb (875 to be exact) typhoon headed straight for land...winds??? i say 185 to 200 mph sustained...unbelievable! if only we had recon to confirm this...

I agree there may be 180mph winds, but Bopha is too small for a sub-900mb pressure, 910-20mb is more likely

The tiny Labor Day hurricane in 1935 over the Florida keys had a pressure of 892 mb.

[CrazyC83]

this is likely a sub 900 mb (875 to be exact) typhoon headed straight for land...winds??? i say 185 to 200 mph sustained...unbelievable! if only we had recon to confirm this...

I agree there may be 180mph winds, but Bopha is too small for a sub-900mb pressure, 910-20mb is more likely

I agree, plus an extremely low latitude also increases the pressure. I would guess about 920mb.

[ozonepete]

this is likely a sub 900 mb (875 to be exact) typhoon headed straight for land...winds??? i say 185 to 200 mph sustained...unbelievable! if only we had recon to confirm this...

I agree there may be 180mph winds, but Bopha is too small for a sub-900mb pressure, 910-20mb is more likely

I agree, plus an extremely low latitude also increases the pressure. I would guess about 920mb.

Latest CIMSS ADT at 1400 UTC had a pressure of 911 mb which is reasonable. (And they take background pressure and size into account.)

[CrazyC83]

Signal 4 has NOT been raised yet? I haven't heard of such being raised yet.

[dexterlabio]

^that's a storm warning signal from PAGASA. 4 is the highest storm warning while 1 is the lowest. Signal no. 1 is more like of a gale-force wind warning with expected winds of around 25-32knots. When it's signal number 4, the locals are to expect strong winds at or exceeding 185kph or 100kts...though PAGASA uses 10-min ave. in reporting wind speed, same as the JMA...

[CrazyC83]

^that's a storm warning signal from PAGASA. 4 is the highest storm warning while 1 is the lowest. When it's signal number 4 in one area, it is to expect strong winds at or exceeding 185kph or 100kts...though PAGASA uses 10-min ave. in reporting wind speed, same as the JMA...

I knew that, but I have only heard of Signal 3 for the risk areas.

Basically, our equivalent to Signal 1 would be an advisory, Signal 2 would be a Tropical Storm Warning, Signals 3 and 4 equivalent to Hurricane Warning (with 4 for high-end).

[supercane4867]

this is likely a sub 900 mb (875 to be exact) typhoon headed straight for land...winds??? i say 185 to 200 mph sustained...unbelievable! if only we had recon to confirm this...

I agree there may be 180mph winds, but Bopha is too small for a sub-900mb pressure, 910-20mb is more likely

The tiny Labor Day hurricane in 1935 over the Florida keys had a pressure of 892 mb.

I doubt the credibility of that pressure reading in Labor day Hurricane, since it's not officially recognized by the WMO

[dexterlabio]

oh, yeah. they only issued signal number 3 to areas on the east coast of Mindanao. and PAGASA kept the intensity at 175 km/h. so no chance of 4 being raised at all, landfall is just a few hours away...

[euro6208]

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2303

Jeff Master's WunderBlog:

Bopha became the most southerly typhoon ever recorded in the Western Pacific at 06 GMT on November 30, when the storm was at 3.8°N latitude.

not true...Vamei in 2001 reached a peak of 75 knots at 1.5 N- only 90 miles north of the equator!

[supercane4867]

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2303

Jeff Master's WunderBlog:

Bopha became the most southerly typhoon ever recorded in the Western Pacific at 06 GMT on November 30, when the storm was at 3.8°N latitude.

not true...Vamei in 2001 reached a peak of 75 knots at 1.5 N- only 90 miles north of the equator!

The RSMC of WPAC, the JMA, kept Vamei as a STS so there's no typhoon

[dexterlabio]

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2303

Jeff Master's WunderBlog:

Bopha became the most southerly typhoon ever recorded in the Western Pacific at 06 GMT on November 30, when the storm was at 3.8°N latitude.

not true...Vamei in 2001 reached a peak of 75 knots at 1.5 N- only 90 miles north of the equator!

I think they are using the RSMC data, and only JTWC upgraded Vamei to TY strength while Bopha was both upgraded by JTWC and JMA at 3.8N...

[Crostorm]

[Meow]

The RSMC of WPAC, the JMA, kept Vamei as a STS so there's no typhoon

45 knots, just a TS.

[euro6208]

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2303

Jeff Master's WunderBlog:

Bopha became the most southerly typhoon ever recorded in the Western Pacific at 06 GMT on November 30, when the storm was at 3.8°N latitude.

not true...Vamei in 2001 reached a peak of 75 knots at 1.5 N- only 90 miles north of the equator!

The RSMC of WPAC, the JMA, kept Vamei as a STS so there's no typhoon

Vamei was upgraded to a typhoon based on 2 U.S naval ship- one within the eyewall, another recorded 105 knots wind gust in the southern eyewall...you can't deny ground truth information...

[supercane4867]

Vamei was upgraded to a typhoon based on 2 U.S naval ship- one within the eyewall, another recorded 105 knots wind gust in the southern eyewall...you can't deny ground truth information...

I knew that, but the JTWC upgrade is not official. JMA is tha boss...

[dexterlabio]

Haha the upgrade of Vamei will take us to a long debate, but it is Bopha who is the center of attraction in here.

[cycloneye]

If there is very small good news about the landfall in Mindanao is the fact that it will be a daytime landfall and not during the night.

[supercane4867]

oh, yeah. they only issued signal number 3 to areas on the east coast of Mindanao. and PAGASA kept the intensity at 175 km/h. so no chance of 4 being raised at all, landfall is just a few hours away...

I always disliked WPAC agencies' way of issuing different levels of typhoon warnings. Tropical cyclones don't need to come as a flippin CAT5 inorder to cause damage. A single hurricane warning is enough to warn people just like what we do here in the Atlantic

[euro6208]

Vamei was upgraded to a typhoon based on 2 U.S naval ship- one within the eyewall, another recorded 105 knots wind gust in the southern eyewall...you can't deny ground truth information...

I knew that, but the JTWC upgrade is not official. JMA is tha boss...

LOL i'm glad you know