Meteorologist/Programmer, PhD. Creating a web platform for weather data visualization.
Miami, FL
Joined July 2017
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Matt Onderlinde retweeted
Our director, Ken Graham, is a finalist for the 2021 Service to America Award (the #Sammies) for steering the Nation through the challenges of the historic 2020 hurricane season.
Please help us vote for him, which you may do once every 24 hours!
servicetoamericamedals.org/p…
Matt Onderlinde retweeted
Pretty confident Steve has the meteor event in GLM. It's also on GOES 17s #lightning mapper across northwest #okwx. Here is some background on how GLM can observe these bolide events. mdpi.com/1424-8220/19/5/1008…
Matt Onderlinde retweeted
This is certainly a case where the SST overlay of satellite imagery from @Weathernerds comes in handy! Right now the low level circulation is on the northern wall of the Gulf Stream.
If #95L continues on its NNE heading, it will move over much cooler SSTs in the next 12-24h.
Matt Onderlinde retweeted
Neat forecast evolution from the 3-km NAM of the tropopause polar vortex traversing across the NE today. Convection in the center of the TPV erodes the high vorticity at 500 mb (approx. tropopause level), resulting in a ring of high vorticity that then mixes back inward later.
Matt Onderlinde retweeted
These storms over the lower Mississippi Valley are putting out roughly 15,000 lightning strikes per hour via GOES-17 global lightning mapper (GLM). Impressive....
Data available in real-time via @Weathernerds weathernerds.org/home.html
#TXwx #LAwx #mswx
Matt Onderlinde retweeted
The MCS currently moving offshore was enhanced by the Guinea highlands yesterday evening. Looks like another MCS close behind. Not sure if they're both part of the same wave exactly. Will be interesting to see what comes out. Thanks @Weathernerds for the zoomable satellite!
Matt Onderlinde retweeted
Quick little KGRB radar animation of the ongoing #derecho over #Wisconsin capturing a leading supercell.
The vorticity from the supercell merges with the larger MCS, producing a larger mesocyclone within the line. A dangerous wind threat ongoing with this line. #WIwx
Matt Onderlinde retweeted
Now the gridded flash extent density: weathernerds.org/satellite/?…
Loop (from @Weathernerds) with @NOAASatellites #GOES16 #GOESEast ABI and GLM: weathernerds.org/satellite/?… More ABI and GLM at:
cimss.ssec.wisc.edu/goes/goe… eg weather.msfc.nasa.gov/cgi-bi… re.ssec.wisc.edu/?products=G… #MNwx #IAwx #WIwx @goesglm
Matt Onderlinde retweeted
I really like @Weathernerds's interface for overlaying GLM lightning w/ #GOES16 visible imagery for Barry. The most active lightning is associated with a feeder band SW away from the center.
Pay closer attention to lightning on the SE flank, closer to where the mesovortex is at.
Matt Onderlinde retweeted
I'm a huge fan of the new #lightning options on @Weathernerds, available within the entire fields of view for GOES-16/17.
Here's a side by side of GLM flash extent density and radar for storms over Oklahoma ~1 hour ago. I can't wait see this kind of data in tropical systems!
Matt Onderlinde retweeted
Animation above was created via @Weathernerds's which lets you create custom Level 2 radar zooms for any radar across the US.
URL: weathernerds.org/radar/
Here is an example of an obvious #BWER (bounded weak echo region) with a likely tornadic supercell near Oconee, GA.
Matt Onderlinde retweeted
Even with the more complex algorithm used to differentiate rain vs snow in @Weathernerds site, fv3 gfs putting up some big #snow totals in #nyc #nj #pa. Next 72 hrs should be interesting!
Matt Onderlinde retweeted
Heads-up #Florida... a cold front is coming through and bringing lots of lightning and gusty winds. #Tornado warnings and #severe thunderstorm watches have also been issued ahead of it. #flwx radar.weather.gov/Conus/sout… @Weathernerds
Matt Onderlinde retweeted
Lots of #lightning inside the eastern eyewall of Hurricane #Oscar today. In the absence of recon, RMW estimates are difficult, but from a best guess, it appears to have occurred inside the RMW. Oscar has continued to intensify throughout this phase, as research suggests.
Matt Onderlinde retweeted
Like other strong hurricanes we've seen this season, #Willa has started to show abundant eyewall lightning.
Imagery from @Weathernerds
Matt Onderlinde retweeted
Major Hurricane #Lane remains a powerful category 4 this morning. The latest official forecast and ensemble guidance has trended closer to the Hawaiian islands. Interests in Hawaii should continue to monitor this system at prh.noaa.gov/cphc/ – at Richmond West, FL
Matt Onderlinde retweeted
Playing around with the cool new IR-ASCAT overlay from @Weathernerds and I realized the wave in the Central Atlantic actually has a circulation, or something close to one. Very little convection though - this extreme stability likely the reason.
Matt Onderlinde retweeted
#Hector is currently experiencing an large increase in inner core lightning. With northeasterly shear present, the movement of the GLM lightning suggests convection is rotating upshear.
Image courtesy of @Weathernerds.
Matt Onderlinde retweeted
A loop of #Chris hanging out in the Atlantic along with some convection from the front in southern WV. #WVwx #VAwx #59First #HurricaneChris
Matt Onderlinde retweeted
How tiny is #Beryl? The pink line is 500 km, and Beryl is significantly smaller. Really useful measuring tool on @Weathernerds.
