Josh Kastman
@drwxkast.bsky.social
Dad & husband. Chief Meteorologist at Amazon. PhD from MIZ-ZOU. Lover of whiskies, sports, and your standard nerd stuff. Opinions are my own.
Reposted by Josh Kastman
New MPD for the Mid-Atlantic is out www.wpc.ncep.noaa.gov/metwatch/met...
WPC Met Watch
www.wpc.ncep.noaa.gov
July 31, 2025 at 8:48 PM
New MPD for the Mid-Atlantic is out www.wpc.ncep.noaa.gov/metwatch/met...
Reposted by Josh Kastman
Reposted by Josh Kastman
Busy year for tornadoes so far. 2nd most to date going back to 2010. There could be no tornadoes for a month and still be above average. 🌪
May 22, 2025 at 1:28 AM
Busy year for tornadoes so far. 2nd most to date going back to 2010. There could be no tornadoes for a month and still be above average. 🌪
Reposted by Josh Kastman
Textbook supercell split
May 17, 2025 at 10:13 PM
Textbook supercell split
We have an opening on my team for senior meteorologist at Amazon. We do really exciting work from tactical meteorology support to global projects. www.amazon.jobs/en/jobs/2982...
Senior Meteorologist, World Wide Operations Security (WWOS)
The Senior Resilience Meteorologist plays a crucial role in developing and implementing comprehensive risk management strategies for Amazon. This position is responsible for building resilience framew...
www.amazon.jobs
May 16, 2025 at 4:59 PM
We have an opening on my team for senior meteorologist at Amazon. We do really exciting work from tactical meteorology support to global projects. www.amazon.jobs/en/jobs/2982...
Reposted by Josh Kastman
We often (rightly) see maps like these showing how good SPC convective outlooks are; let's also give some kudos to WPC for some outstanding excessive rainfall outlooks for this event. Especially impressive are the day 5 outlooks, giving advance notice of prolonged excessive rainfall and flood risk.
April 6, 2025 at 10:00 PM
We often (rightly) see maps like these showing how good SPC convective outlooks are; let's also give some kudos to WPC for some outstanding excessive rainfall outlooks for this event. Especially impressive are the day 5 outlooks, giving advance notice of prolonged excessive rainfall and flood risk.
Reposted by Josh Kastman
Visualizing the prolonged multi-day stretch of severe weather, widespread flooding, and late-season snowstorm in a single loop:
April 6, 2025 at 8:09 PM
Visualizing the prolonged multi-day stretch of severe weather, widespread flooding, and late-season snowstorm in a single loop:
Reposted by Josh Kastman
A 3-day loop of estimated precipitation (10-inch isohyet highlighted). The 10+ inch rainfall forecasts issued Thursday appear to be verifying. Ten inches of rainfall in 3-days across the #Midsouth has ~1% chance of happening in any year (1-in-100). #ARwx #MOwx #TNwx #KYwx #Flood #Flooding #Flooded
April 5, 2025 at 2:53 PM
Reposted by Josh Kastman
Sharing a WPC graphic regarding the incredibly concerning flood threat later this week.
April 1, 2025 at 12:44 AM
Sharing a WPC graphic regarding the incredibly concerning flood threat later this week.
Reposted by Josh Kastman
I’m keeping a running upperair observation status page on my website.
I have additional metadata like reason for degradation, degradation type, when the degradation began, etc. In a coming update you will be able to read those things by clicking on the site.
www.stormscale.io/spc/upperair...
I have additional metadata like reason for degradation, degradation type, when the degradation began, etc. In a coming update you will be able to read those things by clicking on the site.
www.stormscale.io/spc/upperair...
March 21, 2025 at 9:17 PM
I’m keeping a running upperair observation status page on my website.
I have additional metadata like reason for degradation, degradation type, when the degradation began, etc. In a coming update you will be able to read those things by clicking on the site.
www.stormscale.io/spc/upperair...
I have additional metadata like reason for degradation, degradation type, when the degradation began, etc. In a coming update you will be able to read those things by clicking on the site.
www.stormscale.io/spc/upperair...
Reposted by Josh Kastman
Another potentially significant tornado developing in the south St. Louis suburbs, this time likely to head toward Arnold/Imperial. #mowx
March 15, 2025 at 2:27 AM
Another potentially significant tornado developing in the south St. Louis suburbs, this time likely to head toward Arnold/Imperial. #mowx
Reposted by Josh Kastman
An incredibly rare Day 2 High Risk (level 5 out of 5 risk) for portions of Mississippi and Alabama
This has only occurred three times since these records have been kept (with two of those encompassing similar portions of Mississippi and Alabama region):
2025-03-15
2012-04-14
2006-04-07
This has only occurred three times since these records have been kept (with two of those encompassing similar portions of Mississippi and Alabama region):
2025-03-15
2012-04-14
2006-04-07
March 14, 2025 at 5:53 PM
An incredibly rare Day 2 High Risk (level 5 out of 5 risk) for portions of Mississippi and Alabama
This has only occurred three times since these records have been kept (with two of those encompassing similar portions of Mississippi and Alabama region):
2025-03-15
2012-04-14
2006-04-07
This has only occurred three times since these records have been kept (with two of those encompassing similar portions of Mississippi and Alabama region):
2025-03-15
2012-04-14
2006-04-07
Reposted by Josh Kastman
Quick warning about using NOHRSC analyses to make snow maps of this event — the data currently available only has 1364 reports, meaning this map is basically just the first guess field.
It’s best to wait until there’s at least over 8000 reports for a more accurate map.
It’s best to wait until there’s at least over 8000 reports for a more accurate map.
January 22, 2025 at 1:25 PM
Quick warning about using NOHRSC analyses to make snow maps of this event — the data currently available only has 1364 reports, meaning this map is basically just the first guess field.
It’s best to wait until there’s at least over 8000 reports for a more accurate map.
It’s best to wait until there’s at least over 8000 reports for a more accurate map.
Reposted by Josh Kastman
The Florida state snowfall record appears to have fallen.
From Molino, FL.
Passed along by NWS Mobile.
From Molino, FL.
Passed along by NWS Mobile.
January 22, 2025 at 12:23 AM
The Florida state snowfall record appears to have fallen.
From Molino, FL.
Passed along by NWS Mobile.
From Molino, FL.
Passed along by NWS Mobile.
Reposted by Josh Kastman
Connor Cozad (WPC): the new WPC probabilistic precipitation portal is online, which includes interactive snow forecast maps, and removes CWA boundaries from low/forecast/high end WFO forecast graphics #AMS2025
www.wpc.ncep.noaa.gov/Prob_Precip/
www.wpc.ncep.noaa.gov/Prob_Precip/
January 16, 2025 at 3:27 PM
Connor Cozad (WPC): the new WPC probabilistic precipitation portal is online, which includes interactive snow forecast maps, and removes CWA boundaries from low/forecast/high end WFO forecast graphics #AMS2025
www.wpc.ncep.noaa.gov/Prob_Precip/
www.wpc.ncep.noaa.gov/Prob_Precip/
Reposted by Josh Kastman
James Nelson (WPC): NOAA forecast testbeds cover important ground in research to operations, helping to evaluate tools and models, such as aiding in the decision to move away from FV3 CAMs to MPAS #AMS2025
January 15, 2025 at 2:46 PM
James Nelson (WPC): NOAA forecast testbeds cover important ground in research to operations, helping to evaluate tools and models, such as aiding in the decision to move away from FV3 CAMs to MPAS #AMS2025
Reposted by Josh Kastman
I can’t believe The Midwest got The South to accept this “snow” for “being good at college football” trade. Feels like a rip-off
January 10, 2025 at 3:38 PM
I can’t believe The Midwest got The South to accept this “snow” for “being good at college football” trade. Feels like a rip-off
Reposted by Josh Kastman
One of those nights where I feel unsettled going to bed because I know that an unfolding disaster could look immeasurably worse in the morning. One of the challenges of being a met: You’re awed by things that have tangible, usually horrible impacts on people’s lives and communities.
January 8, 2025 at 5:29 AM
One of those nights where I feel unsettled going to bed because I know that an unfolding disaster could look immeasurably worse in the morning. One of the challenges of being a met: You’re awed by things that have tangible, usually horrible impacts on people’s lives and communities.
Reposted by Josh Kastman
Here's an 18-hour snowfall estimate for the Jan 5-6, 2025 Plains to Mid Atlantic snowstorm.
January 6, 2025 at 9:57 PM
Here's an 18-hour snowfall estimate for the Jan 5-6, 2025 Plains to Mid Atlantic snowstorm.
Officially starting my Blackstone era!!
December 1, 2024 at 1:58 AM
Officially starting my Blackstone era!!
Happy Thanksgiving! Smoking a beer chicken. Life is good.
November 28, 2024 at 11:43 PM
Happy Thanksgiving! Smoking a beer chicken. Life is good.
Trying to not drink coffee while preparing for a 7 am wx briefing so I can go back to sleep afterwards. I’m sure this plan will work
a bald man is giving a peace sign and the word sure is behind him
ALT: a bald man is giving a peace sign and the word sure is behind him
media.tenor.com
November 28, 2024 at 1:22 PM
Trying to not drink coffee while preparing for a 7 am wx briefing so I can go back to sleep afterwards. I’m sure this plan will work
The lake effect machine is about to turn on. Get ready for a white Black Friday in the usual lake effect spots.
November 26, 2024 at 1:28 PM
The lake effect machine is about to turn on. Get ready for a white Black Friday in the usual lake effect spots.
Reposted by Josh Kastman
I am preparing for a dumb turnover and a loss. Hope you are too.
November 24, 2024 at 9:06 PM
I am preparing for a dumb turnover and a loss. Hope you are too.