Reposted by Dave ZaffRadarScope @radarscope.app · 21/09/2026RadarScope 5.7 is available today for iOS with support for ProbSevere, RRFS, indie radars, and One more thing… 86711
Reposted by Dave ZaffDr. Wendy Bohon @drwendyrocks.bsky.social · 26/08/2026Some early reports said that the horrifying flooding in Nepal was the result of an earthquake. However, the signal was actually the recording of the landslide. TL:DR - there was no earthquake, it was a landslide. earthquake.usgs.gov/earthquakes/... 7273105
Reposted by Dave ZaffDr. Wendy Bohon @drwendyrocks.bsky.social · 25/06/2026Ok you guys. Here’s the deal. The M7.1 in Venezuela was upgraded to a M7.2. AND it was followed shortly by a M7.5. Not good. 391069548
Reposted by Dave ZaffDoppler on Wheels (DOW) @dowfacility.bsky.social · 24/04/2026MiniCOW packs MegaPOWER! Observes birth and ingestion of satellite tornado and Fujiwara effect deflecting tornado. Tornado transitions 2x between clear eye and debris ball. Prelim data from most powerful mobile radar, 1 MegaWatt C-band storm-penetrating miniCOW in Braman, OK 🌪️ 13716
Dave Zaff @davidzaff.bsky.social · 03/04/2026There 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). 130
Reposted by Dave Zaffcira-csu.bsky.social @cira-csu.bsky.social · 02/04/2026From its angled view, GOES-18 also captured the historic launch of Artemis II. 215149
Reposted by Dave ZaffPat Hyland @hylandwx.bsky.social · 21/03/2026Three consecutive days of record-breaking global high temperature records for a single day (counts dating back to July 2010 - coolwx.com/record) 063
Reposted by Dave ZaffGreg Porter @gporterwx.bsky.social · 23/02/2026Wow! Officially the biggest snowstorm in RI history. Providence will make a run at 40 inches 23923
Reposted by Dave Zaffdaryl herzmann @akrherz.bsky.social · 13/01/2026🚨 🚀 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? 117617
Dave Zaff @davidzaff.bsky.social · 01/01/2026Snow 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. 140
Reposted by Dave ZaffMarshall Shepherd @drshepherd2013.bsky.social · 18/12/2025What's NCAR? and 8 ways it has helped you www.forbes.com/sites/marsha...forbes.com 38051
Reposted by Dave ZaffColette Delawalla, PhD @cdelawalla.bsky.social · 17/12/2025Hi. Hello. Shutting down climate research doesn't make climate change stop existing! 47827
Dave Zaff @davidzaff.bsky.social · 19/11/2025Hard 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” 110
Reposted by Dave ZaffNahel Belgherze @wxnb.bsky.social · 01/11/2025NOAA aerial imagery is coming in. Hurricane Melissa literally turned western Jamaica from green to brown. Vegetation damage is immense — recovery will take years. 12266157
Reposted by Dave ZaffTomer Burg @burgwx.bsky.social · 29/10/2025Zoomed-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: 0419
Reposted by Dave ZaffDakota Smith @weatherdak.bsky.social · 29/10/2025Alrighty, ready to see something really cool? (and maybe a little nauseating) The evolution of Hurricane Melissa's mesovortices at peak strength. 37864297
Reposted by Dave ZaffNPR @npr.org · 19/05/2025Whether 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.socialnpr.orgWhere 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. 19963862022
Reposted by Dave ZaffTomer Burg @burgwx.bsky.social · 16/05/2025Google 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 03510
Reposted by Dave ZaffAlan Gerard @wxmanms1.bsky.social · 02/05/2025More 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...open.substack.comReflections on a day of changeThoughts on transitions at NOAA 1378
Dave Zaff @davidzaff.bsky.social · 01/05/2025Nice little shelf cloud in Western NY this eve. 5/1/25 2249Z. 121
Dave Zaff @davidzaff.bsky.social · 27/04/2025A 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. 061
Reposted by Dave ZaffBrian Matilla @bxmatilla.bsky.social · 24/04/2025Again 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. 07133
Reposted by Dave ZaffAlan Gerard @wxmanms1.bsky.social · 20/04/2025ICYMI: NOAA released a statement to NBC News last night in defense of their cuts to NWS. I broke down why it's ludicrous. balancedweather.substack.com/p/special-ba...balancedweather.substack.comSpecial BalancedWx Update: NOAA statement about impacts of NWS staff reductionsAnd a quick evening severe weather update 13522
Dave Zaff @davidzaff.bsky.social · 09/04/2025Oneida Lake is showing off it's lake shadow early this afternoon. Not bad for a little guy compared to Lake Ontario. 040
Reposted by Dave ZaffBrian Matilla @bxmatilla.bsky.social · 04/04/2025This would be nothing short of CATACLYSMIC. I do not put this lightly… Not just NOAA websites, but it will severely affect NWS warning systems, MRMS radar data accessibility, model data accessibility, and more, for services provided by AWS and Google Cloud Platform. Scientific growth will be hurt. 23722
Reposted by Dave ZaffLauren Rosenthal @laurenthal.bsky.social · 04/04/2025Almost all NOAA Research websites that rely on cloud services - including Amazon, Google and WordPress - are poised to disappear at midnight ET Saturday after a contract was targeted for "early termination." Labs may also feel the effects. Story for @bloomberg.com (free link):bloomberg.comUS Weather Agency Websites to Vanish Under Planned Contract CutsThe US National Oceanic and Atmospheric Agency is poised to eliminate most websites tied to its research division under plans for the cancellation of a cloud web services contract, a move that could s... 40268624055
Dave Zaff @davidzaff.bsky.social · 28/03/2025Partial solar eclipse information for the Buffalo, NY area tomorrow, Mar 29, 2025: 05:29 AM: Partial eclipse begins (below horizon) 07:02 AM: Sunrise 07:05 AM: Maximum eclipse 07:09 AM: Partial eclipse ends Hardly noticeable, and probably cloudy anyway. www.timeanddate.com/eclipse/in/u... 010
Dave Zaff @davidzaff.bsky.social · 21/03/2025Interesting "ice bridge" on Lake Erie between connecting Long Point, Ontario to PA and NY this afternoon as seen from the NOAA-21 polar orbiter this afternoon. I wouldn't cross it though. 031
Dave Zaff @davidzaff.bsky.social · 18/03/2025Lake Erie ice, now down to 18% coverage is flowing nicely today. apps.glerl.noaa.gov/coastwatch/w... geosphere.ssec.wisc.edu#playing:true...; 1132
Reposted by Dave ZaffOklahoma Mesonet @mesonet.org · 14/03/2025For some quick historical context on today's winds (so far). We have already had more sites measure severe wind gusts (58 mph and greater) than any other single day in our 30 year history. Unfortunately those winds have fueled many wildfires (black spots on satellite). #okwx #okmesonet 06926
Reposted by Dave ZaffOklahoma Mesonet @mesonet.org · 14/03/2025A fire burned through our Lake Carl Blackwell Mesonet site around 3:41-3:45pm. One of our thermometers measured a 1-minute average temperature of 173 F at 3:42pm. The 2 meter anemometer is now reporting 0, which indicates that it likely was completely melted. #okwx #okmesonet 19948
Dave Zaff @davidzaff.bsky.social · 13/03/2025Lunar eclipse viewing looks pretty good for Western NY with mainly high thin clouds overnight. Full eclipse begins: 06:26Z (2:26 am EDT) Maximum Eclipse: 06:58Z (2:58 am EDT) Full Eclipse ends: 07:31Z (3:31 am EDT) www.spc.noaa.gov/exper/href/?... www.timeanddate.com/eclipse/luna... 020
Reposted by Dave ZaffDan D. @wxdepo.bsky.social · 04/03/2025An excellent report from Penn State’s Weather World on the impacts of the NWS and NOAA cuts last week. Well done @roblydick.bsky.social youtu.be/eeRLVzbqy-k?...youtu.beSpecial Report: NOAA and NWS CutsYouTube video by WeatherWorld PSU 14122
Dave Zaff @davidzaff.bsky.social · 03/03/2025Some nice hole punches over Western NY this morning. GOES-16 mesosector from 1219-1318Z March 3, 2025. 030
Reposted by Dave ZaffStephen Mullens @srmullens.bsky.social · 14/02/2025In our effort to appreciate the random person in Nebraska, we failed to appreciate the two unlabeled but much larger blocks beneath even them. That was government investment. 🧵 1155
Dave Zaff @davidzaff.bsky.social · 26/02/2025Lake Erie ice cover is down to 81% today. SAR data shows some notable open areas east of Lake Erie Islands and north of Long Point. www.star.nesdis.noaa.gov/socd/mecb/sa... apps.glerl.noaa.gov/coastwatch/w... 043
Dave Zaff @davidzaff.bsky.social · 19/02/2025Like the classic quote in Princess Bride, “mostly dead is slightly alive”… Just because ‘Lake Erie is mostly ice covered’ doesn’t mean we can’t have lake effect snow. 130
Reposted by Dave Zaffcira-csu.bsky.social @cira-csu.bsky.social · 24/01/2025On January 21, 2025, a rare winter storm brought snow to the Gulf Coast and Southeastern United States. Much of Southern Louisiana was blanketed in a historic snowfall. Clear skies the day after the storm revealed a wintry scene. 1143
Dave Zaff @davidzaff.bsky.social · 23/01/2025Impressive! Ice cover over Lake Erie increased from around 27% on Sunday to near 80% on Wednesday. SAR NCRS does a spectacular job capturing this without cloud interference. #lakeerie www.star.nesdis.noaa.gov/socd/mecb/sa... apps.glerl.noaa.gov/coastwatch/w... 080
Dave Zaff @davidzaff.bsky.social · 22/01/2025Looks like I made it past the 100" mark this week for seasonal snow... 107.3" and counting. Here's my CoCoRaHS seasonal snow summary from 2008-today. It's not an official climatology, but it does roughly match local stats showing this location just above 100"/year. www.weather.gov/media/erh/ta... 030
Dave Zaff @davidzaff.bsky.social · 22/01/2025Here's a dprog/Dt of the ECMWF's Extreme Forecast Index (EFI - shaded) and the Shift of Tails (SOT - black contours) for snowfall. Images start on Wed 00Z Jan 15, 2025, and continue at 24 hr time steps. 171