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Posts by Dave Zaff

Or it was a separate image taken with a longer exposure. If so, the separate pics had to captured be in fairly quick succession.

2 weeks ago 1 0 1 0
Two images of Earth, via NASA (Artemis II).  The one on the left shows a dim view of Earth with a clear bright arc on side indicating that the planet will soon be illuminated by the sun.  The one on the right, presumably the same image, appears to be brightened to show more details.

Two images of Earth, via NASA (Artemis II). The one on the left shows a dim view of Earth with a clear bright arc on side indicating that the planet will soon be illuminated by the sun. The one on the right, presumably the same image, appears to be brightened to show more details.

There are a lot of posts about Artemis II and a picture of Earth today. Most show the bright one (right). But I *think* that was enhanced, as another less interesting, but probably more realistic one is also available via NASA (left).

2 weeks ago 3 0 1 0
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From its angled view, GOES-18 also captured the historic launch of Artemis II.

3 weeks ago 154 50 2 9
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There it GOES! #Artemis II view via #GOES 19

3 weeks ago 36 7 0 0
A NWS Dodge City tweet from March 13, 2021 with a single word reply, “No.”

A NWS Dodge City tweet from March 13, 2021 with a single word reply, “No.”

3 weeks ago 5 1 1 0
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Three consecutive days of record-breaking global high temperature records for a single day (counts dating back to July 2010 - coolwx.com/record)

1 month ago 6 3 0 0
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Wow! Officially the biggest snowstorm in RI history. Providence will make a run at 40 inches

1 month ago 39 24 2 1

🚨 🚀 A crude interface I built to expose an archive of College of DuPage GOES imagery since about 15 Apr 2017. The archive is around ~500TB in size over ~2.5 billion JPEG images. Yikes, but here you go.

mesonet.agron.iastate.edu/archive/cods...

Anyways happy for feedback. Not worth the effort?

3 months ago 78 17 11 9
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Snow bands are feeding into an arctic front as it moves ESE through PA. Many snow squall warnings accompany the front with localized intense snow and whiteout conditions. Impressive winter radar display.

3 months ago 4 0 1 0
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I miss my MTV.

3 months ago 2 0 0 0
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I don’t post KBUF radar much anymore, but Go Bills!

3 months ago 5 0 0 0

What's NCAR? and 8 ways it has helped you

www.forbes.com/sites/marsha...

4 months ago 80 52 3 1

Hi. Hello.

Shutting down climate research doesn't make climate change stop existing!

4 months ago 78 27 4 2

Hard to choose, but the 7:27 minute Go Set is “Snap-crackle-pop-boom, POW” good. But the 14:12 minute Thomas Duncan, Pt 3 is a masterpiece. “Perhaps you did not get the memo?”Then there’s Samba for Sam… Oh never mind. They’re ALL good. “Don't let the music stop”

5 months ago 1 0 1 0
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NOAA aerial imagery is coming in. Hurricane Melissa literally turned western Jamaica from green to brown. Vegetation damage is immense — recovery will take years.

5 months ago 267 157 12 15
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Zoomed-in, 1-minute loop leading up to Melissa's record-tying destructive landfall - notice the Air Force plane circling in the eye after experiencing severe turbulence before leaving the storm:

5 months ago 41 9 0 3
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Alrighty, ready to see something really cool? (and maybe a little nauseating)

The evolution of Hurricane Melissa's mesovortices at peak strength.

5 months ago 869 301 37 26
Lyrics for "Little Things" by Dogs In A Pile

Here’s 9 minutes of “Little Things” by Dogs in a Pile. Sub theme, “But don't you worry 'bout the weather tonight”

youtu.be/uoR1SP74BA8

Full lyrics:

go-set.net/song/little-...

9 months ago 1 0 0 0
The official NWS forecast showing the probability of precipitation for Saturday using the 733 AM issuance showed a 50% chance for at least 0.01” of rain for the D.C area through 600 PM,

The official NWS forecast showing the probability of precipitation for Saturday using the 733 AM issuance showed a 50% chance for at least 0.01” of rain for the D.C area through 600 PM,

The NWS forecast Saturday morning was 50%.

10 months ago 23 2 0 0
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Kudos to Geologists for saving lives!

10 months ago 6 0 1 0
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Where does your weather forecast come from? Whether you get your forecast from an app on your phone, a website or a meteorologist on TV, most of the underlying information comes from the federal government.

Whether you get your forecast from an app on your phone, a website or a meteorologist on TV, most of the underlying information comes from the federal government.
By @rhersher.bsky.social

11 months ago 6415 2027 200 120
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Google Maps live traffic is an indicator of the general swath of impact from the tornado in the STL metro. Multiple schools, residential areas, and a major interstate highway in its path

11 months ago 36 10 0 0

We need data, Unidata.

11 months ago 4 0 0 0
A search for ‘NOAA’ in today’s news turns up multiple troubling articles regarding cutback, along with other issues.

A search for ‘NOAA’ in today’s news turns up multiple troubling articles regarding cutback, along with other issues.

A search for ‘NOAA’ in today’s news turns up multiple troubling articles regarding cutback, along with other issues.

A search for ‘NOAA’ in today’s news turns up multiple troubling articles regarding cutback, along with other issues.

Searching for NOAA in today’s news…

11 months ago 7 0 0 0
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Reflections on a day of change Thoughts on transitions at NOAA

More than 1,000 of my former NOAA colleagues left the agency in one day yesterday. I've been seeing a continuous stream of retirement announcements unlike anything I've ever experienced. It's brought a lot of emotions - I talked about them here.

open.substack.com/pub/balanced...

11 months ago 38 8 1 4
Shelf cloud above East Aurora NY.

Shelf cloud above East Aurora NY.

KBUF reflectivity and velocity.

KBUF reflectivity and velocity.

Nice little shelf cloud in Western NY this eve. 5/1/25 2249Z.

11 months ago 2 1 1 0
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Mesoscale marine effects on Lake Erie.

11 months ago 5 0 0 0
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There is a 30-44% chance of severe weather over Western NY and PA on Tuesday, April 29, 2025, and a 10% chance for significant severe weather, defined as:

A tornado that produces EF2 or greater damage.
Wind speeds of 75 mph (65 knots) or greater.
Hail 2 inch in diameter or larger.

There is a 30-44% chance of severe weather over Western NY and PA on Tuesday, April 29, 2025, and a 10% chance for significant severe weather, defined as: A tornado that produces EF2 or greater damage. Wind speeds of 75 mph (65 knots) or greater. Hail 2 inch in diameter or larger.

A rare Day 3 (Tuesday) convective outlook for Western NY and PA. (30-44% chance for severe weather within 25 mi.)

10% chance for significant severe weather, defined in alt text.

11 months ago 7 1 0 0

A few offices have to drive to the launch site and back. (In the winter, this means clearing snow off the vehicle.)

11 months ago 1 0 0 0

Again I reiterate, the Warn-on-Forecast project is the culmination of stellar work done by all of us on the team. We’ve heard the success stories, we know the community support, and we have so much to learn to make it even better.

This is ONE example of bleeding-edge research that deserves to stay.

11 months ago 71 33 0 1