Chinook

44 knots gusting to 65 knots now at Sydney East Point (CWEP): 010 degrees, 56 knots gusting to 71 knots

Sydney 967.2 mb, increased temperature to 66F (19C)

974.4mb at Halifax airport

oh yeah, some times I completely forget that there are two ways for me to see Canadian radar data

Sable Island now back running, measures 69kt southeast wind gusts, so the lowest pressure must be close or past there

first wind gusts over 50 kts in Nova Scotia

Almost all stations in Nova Scotia are showing wind gusts over 30 knots

Sable Island Nova Scotia has wind sensors, pressure sensors not working

another storm cross section ( compare to my post from before)

Now I'm starting to see much more influence of the colder air, out to the west of the hurricane, on the cross section

Hurricane strength wind gusts directly measured this morning

E-W cross section of Hurricane Fiona, winds (colorized), isotherms of 0C, -12C, -18C, (blue, purple) isentropic surfaces (black), The thing that looks like a hill at the middle of the picture is a little confusing. The sea-level pressures of the storm are below 1000mb, with a strong gradient down to a recon-measured 937mb, I believe. 1000mb is the bottom of the image, so it must show the 937mb pressure as a hill shape. You can see the 0C, -12C, and -18C isotherms bump up in the middle, as well as the isentropic surfaces bump down. That means that the core of the hurricane is the location where the latent heat release has warmed the atmosphere the most. And then there's the 128kt wind in the eyewall, reducing to 20kt in the eye. It does show asymmetry.

There will be a combo of a monsoon moisture band and a cold front moisture band. Models and NWS-WPC agree that there could be over 2" of QPF in the form of rain (or snow) west of the Continental Divide in the next several days. Chances for rainfall over 0.4" of rain at Denver look good. Wednesday will be the day when the temperatures drop to the 50s and 60's for the cities.

sort of a three-supercell complex. storms dropped 2.50" hail west of Walcott IA

This is an awesome effective-STP for September.

You can run a radar loop with this web site, even many days after the storm is done https://mrms.nssl.noaa.gov/qvs/product_viewer/

Buoy 42085 southeast of Ponce: 39kt gusting to 49kt

Next quiz. Where was this taken?

a ship has measured 48 knots (55mph) near the eyewall

The 00z HRRR for tomorrow has quite a few updraft-helicity tracks in western Illinois. Other convection-allowing models have some large storms, too

I'm really going to miss watching Monday night football/Sunday night football starting at 6:40 Mountain time. That was quite convenient for having a slightly late dinner to begin the game and then having the thing be over with at 9:40. Right now I am seeing USC start a football game, just minutes ago. Start time must have been listed at 10:30 Eastern time.

I think it is looking southwest towards Chasm Lake. Maybe somewhere on road 7? Wild Basin Lodge (Sandbeach Lake Trailhead) is the wrong angle.

I always wanted to use the Caribbean composite radar in a situation like this (1515z)

typhoon Nanmadol

Levi's Tropical Tidbits videos are back!