More heat; Gulf of Mexico disturbance
The heat was unrelenting yesterday across the Southwest U.S., where most of California and Arizona set new high temperature records. The 99 degrees in downtown Los Angeles beat the old record of 96 set in 1960, and the suburb of Woodland Hills hit a record 119. All the cities in California's Central Valley set records: 109 degrees in Sacramento, 111 in Redding, and 112 in Red Bluff, Stockton and Modesto. San Francisco's 87 degrees easily beat the record of 81 for the date, set back in 1917.
In Phoenix, this morning's low temperature was 97 degrees, which broke the all-time record for highest low temperature ever recorded in that city (96, set on Jul 15, 2003). Tucson's low of 89 Saturday morning was its highest low temperature in recorded history, as well. The temperature topped out at record 116 in Phoenix yesterday, and 121 in nearby Gila Bend.
Tropical update
An area of disturbed weather continues over the southwestern Gulf of Mexico. Wind shear is over 20 knots in this region, which is too high to allow development today. Both the GFS and NOGAPS models are forecasting this shear to be 15 knots or higher over the next few days, and usually one needs wind shear to fall to the 10-15 knot range for development. However, the NHC is playing it cautiously and has put a Hunter airplane on call for Monday, if needed. I'll be surprised if this flight happens.

Figure 1. Preliminary model forecast tracks for the area of disturbed weather in the Southwest Gulf of Mexico.
Enjoy another quiet weekend in the tropics, everyone!
Jeff Masters
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BEIJING (AP) — China's death toll from Tropical Storm Bilis rose to 530 on Saturday, more than a week after the storm hit, as officials in southern Guangdong province and the Guangxi region reported an additional 48 deaths, state media said.
The atlantic wave/low seems to be aquiring a more substantial circulation this afternoon. If thunderstorm development ensues then satellite classifications may follow suit soon after. (invest 99L that is)
According to this NOAA chart the temperatures are above average in most areas near the US......no?
I would like for someone to explain to me why the AVHRR maps show the warmer waters along the E coast and the N Gulf, and yet there is still some dispute about it. Not just here, but when you compare them with other maps the data just does not add up, as well as some mets talking about the warmer coastal waters. One thing I will say for the AVHRR maps is that they show much more detail then the colored in SST maps.
StormJunkie.com-Models, imagery, marine data, wind data, preparedness info, and much more.
20 knots
1011mbar pressure
very disorganized
Located 20.0N-96.0W
VISIBLE IMAGE
Yeah, but we were talking about 2005 and 2006.
In any case, here are the maps I am looking at.
2006
2005
These have the exact same date. On the previous comparison I was trying to match SJ's dating. Yeah, looks warmer overall in the Gulf, but the east coast... there is no question. Cooler according to those maps. In fact, much of the tropical Atlantic is cooler than 2005.
Everyone just choose the one that makes them happy. :)
develops it will probably go further n and e
What mets SJ? And this isn't the first time I have seen the AVHRR site in a dispute such as this on here. :)
When I pull a map saying the exactly opposite of what you say... pretty obvious why I dispute it. :) I might grant you the GOM temps, but not the east coast.
In any case, I am sure everyone will choose the site they want. I like the AOML site, and will continue to pull my data from it unless I find a reason not to.
yeah, saint i see some convection building to the north
??????? do you mean 98L 456?
I am not disputing that SST maps differ, just trying to understand why and what is causing the discrepancies. Seems to be a similar situation with shear, as there are often times differing views of shear on various shear maps. I think that a lot of the wind shear map discrepancies can be attributed to different levels and types of shear, which I yet to have a clear understanding of.
Wind shear again has increase across the caribbean.
I agree its interesting. I think its a matter of how they are processed. There are only so many sats up there, so the data has limited sources. :)
In any case, I have seen the AOML site used a fair amount (Steve Gregory used it some, and I think I have seen Dr. Master's post it once or twice if I am not mistaken). Other bloggers have used it too. Guess that is the one I am familiar with. The anomalies that I posted seem to reinforce the fact that 2005 was indeed warmer overall. If you look there, it would appear that 2005 had the "warmer" anomalies.
I do like the detail of the site you posted.
000
ABNT20 KNHC 232056
TWOAT
TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
530 PM EDT SUN JUL 23 2006
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
DISORGANIZED SHOWER ACTIVITY CONTINUES IN THE SOUTHWESTERN GULF OF
MEXICO. UPPER-LEVEL WINDS ARE EXPECTED TO BECOME A LITTLE MORE
FAVORABLE FOR DEVELOPMENT DURING THE NEXT DAY OR TWO AS THE AREA OF
DISTURBED WEATHER MOVES SLOWLY TO THE NORTH OR NORTHWEST. AN AIR
FORCE RESERVE RECONNAISSANCE AIRCRAFT IS SCHEDULED TO INVESTIGATE
THE SYSTEM TOMORROW...IF NECESSARY.
ELSEWHERE...TROPICAL STORM FORMATION IS NOT EXPECTED THROUGH MONDAY.
$$
FORECASTER FRANKLIN
doesn't look impressive now, but who knows?
: Weather456 wow how mean dos that make for hurricnae evere name storm has be come a hurricane so far
I dont quite understand.
Everyone is so very concerned about the surface temperatures - has anyone noticed the temperature gradients aloft?
This is potentially more significant. Further, models on radiation cooling, etc. may be even more strongly leveraged? Does this trigger an ice-age like event?
Earth does remain in some grander equilibrium due to distance from the sun, etc. ...
Anyone have data on what is happening to the tropospheric gradients?
So does the BOC system have a chance at becoming TD 3?
one chance: move north into low wind shear.
when Tropical Storm Emilia be comes hurricane Emilia how mean would that be for july and is that odd to have this mean i think evere strom we get will be come a hurricne this watch
Thats why the EPAC had more hurricanes.
But something I realize in the past weak. Wind shear has increase in the EPAC area, and decrease in the Atlantic.
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