Hours of daylight throughout the year in the Northern Hemisphere.

Good day to elongated, partially exposed Gabrielle. It is forecast to become a hurricane in four days as it moves in the general direction of Bermuda. Cape Verde season lasts another couple weeks. After that, tropical cyclogenesis remain possible out east, but the systems tend not to cross.

The North Atlantic systems of interest this morning

Dusk, reflected

I am beginning to wonder about the drift towards the subtropical cyclone category with this system. 🐻⌚️

spectacular green and red aurora lighting up the Big Dipper tonight in Sugar Camp, WI (slightly south of Eagle River)

More aurora action from Lake Erie

Northern Lights from some of the PEMN site cams. #PAwx climate.met.psu.edu/data/pemn/?s...

Aurora borealis sighting now over the Denver metro! #COwx

From September 13, 2018…Hurricane Florence approaches NC

Humberto’s rapid development into a hurricane and landfall from September 12-13, 2007. Imagery from the HGX/Houston radar.

Irma’s journey across the Florida Peninsula on September 10-11, 2017. Radar imagery from the NWS, part of NOAA.

Our Monday Morning Session on Hurricane Helene begins with Dr. Karen Kosiba discussing "Fine-Scale Hurricane Boundary Layer Structure" #NWAS25

What Irma was up to on September 9, 2017. Going left of track, like it had for days. Still intense. Made you wonder if it was going to enter the Gulf.

The sun is trying to go full Jupiter. Again.

Hurricane Fran made landfall on the night of September 5, 1996. The second hurricane impact for NC that season, the storm led to flooding in the Mid-Atlantic states.

My painting LOWCOUNTRY

Moisture from Hurricane Lorena has more or less merged with the existing moisture pool east of the upper low trying to cause recurvature. Portions of Baja California Sur appear most targeted for the heaviest rains.

Hurricane Frances lumbered ashore the FL East Coast late on September 4, 2004. It would produce considerable rainfall/flooding and spawn tornadoes along its path through the East.

Hurricane Elena struck the Gulf Coast 40 years ago on September 2, 1985. The space shuttle photo remains iconic as much of the storm is in frame yet the airplane-like view gives you a concept of its 3D structure.

A sneak peak. Very preliminary. Some form of this will likely be online next month with the U.S. & Canadian extremes

An infrared satellite loop of Dorian from September 2, 2019 — six years ago. This is from the long forecasted period of flow weakening due to an upper level trough/weakness along the Mid-Atlantic coast. The storm was trying to stay as close to the edge of the Bahama Bank as possible.

Unexpected pileus over altocumuli

We’re a couple days from the 2025 hurricane season lagging the average ACE.

Hurricane Gustav made landfall in Louisiana on September 1, 2008. This colorized infrared satellite imagery covers that timeframe.

It’s a good feeling

It’s feeling more and more like fall. Low of 51f. Highs of 80f+ are getting scarce.

Hurricane Idalia struck Keaton Beach FL on August 30, 2023. At the time, it set August and all-time low pressure records near and somewhat inland of its landfall point. It was the first of three hurricanes in 13 months to make landfall there, after a prolonged period of no hurricane landfalls.

Hot in NW Aus this week (up to 39.1c). But compared to 1 year ago, it's nothing. A crazy 185 records in every state and territory were broken- many multiple times A national record of 41.6c was set. *4* state/territory records fell (QLD, NT, SA, WA). Here's a recap of the maps I made covering it

On August 29, 2021 we had Ida making landfall as a significant hurricane. It’s been four years.

Hurricane Katrina’s Louisiana landfall on August 29, 2005. Although it was weakening on approach, the storm led to a large storm surge and significant loss of life. August and/or all-time low pressure records were set along a swath from southeast LA north-northeast to western PA.

National guard doing yard work on the national mall. Lol no president has ever had so little respect for our military.

Here’s a 48-hour water vapor loop of Ex-Hurricane Erin spinning on its final approach to Europe. Truly mesmerizing.

Juliette and Fernand aspire to remnant low status. That race is heating up. 🍿

Irene made landfall near Morehead City/Beaufort NC on August 27, 2011. The storm set an extensive area of August low pressure records from NC northward through New England and caused significant flooding.

Laura made landfall in southwest Louisiana on August 27, 2020 as their strongest known hurricane on record.

Official temperatures Lower Mainland recorded at 12noon as our heat event continues: 30.1°C Hope 27.5°C Pitt Meadows 27.0°C Langley 26.9°C Abbotsford 25.1°C Delta 23.7°C West Van 21.8°C White Rock 21.4°C Vancouver Harbour 21.2°C YVR #YVRwx #YXXwx #YHEwx #BCwx #BCstorm #BCheat

Post-tropical cyclone Erin over the North Atlantic today. Erin is no longer tropical cyclone but has transitioned to a large extratropical cyclone - luckily its post-tropical intensification occurs over the ocean. MTG satellite image from @eumetsat.int: view.eumetsat.int/productviewe...

It’s been 20 years since Katrina’s August 25, 2005 landfall in South Florida.

Fernand with a convective frontal wave to its west and the disturbance model guidance hasn’t lived to its south.

It’s been eight years since Harvey’s August 25, 2017 landfall. The storm remains the wettest tropical cyclone or remnant to impact the United States or its territories. Radar loop from NWS Corpus Christi.

Erin, Fernand, and the persistent disturbance in its wake

On August 24, tomorrow, it will be 33 years since Andrew.

Hurricane Erin moves northward near the East Coast in this satellite imagery over the last couple of days. As it pulls away to the east, Erin is undergoing extratropical transition.

Red Knight moves to protect the Queen, while Yellow Rook gradually tries to intercept. Orange king moves left and has no idea what's going on. #wx

Our August cold air damming will continue until morale improves. 🙃

That’s enough for Buoy 41001’s all-time low pressure record. During Sandy, it fell to 969.6 hPa and during Felix 1995, it fell to 970.4 hPa.

SCOOP: Trump administration slashes scope of next-generation US weather satellites, eliminating air quality and ocean observing sensors. (1/3)

Here’s a first-of-its-kind vertical cross-section analysis of the eyewall of Category 5 Hurricane Erin, captured by AgileRadar’s ROARS radar system installed on NOAA’s Hurricane Hunters P-3 aircraft.

While North Atlantic ACE has become above average for the date, it’s only by a week at the moment since we’re entering peak season. 🐻⌚️