Lightnews — Scholar-powered news

Reposted by Dr. Stephen Bieda III

National Weather Service @nws.noaa.gov · 15h

WPC has initiated Key Messages for an impending coastal storm that will look to generate strong wind gusts, heavy rainfall, and significant coastal impacts that include coastal flooding, rip currents, and beach erosion along portions of the East Coast over the upcoming weekend.

1 21 79

Reposted by Dr. Stephen Bieda III

cira-csu.bsky.social @cira-csu.bsky.social · 1d

Tropical Storm Jerry forms over the central Atlantic and becomes the tenth named storm of the season.

10 22

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 2d

This is the PNS for the #EnderlinTornado upgrade to EF-5, the first since the #MooreTornado on May 20, 2013. #Tornado #EnhancedFujitaScale #EFScale

IEMBot Grand Forks @fgf.weather.im · 2d

#FGF issues Public Information Statement (PNS) at Oct 6, 9:30 AM CDT ...Enderlin Tornado #1 Upgraded to EF-5... Link

9 24

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 7d

Some of us (like in the @nws.noaa.gov) are excepted, still working without pay. Others are furloughed, sent home and unable to perform work. Grateful for all my federal colleagues showing resilience in tough times. Here’s hoping this shutdown is short. #GovernmentShutdown

2 6 43

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 8d

No.

1 7

Reposted by Dr. Stephen Bieda III

National Hurricane Center Bot @nhcbot.bsky.social · 8d

9/30 11pm AST Hurricane #Imelda Key Messages: Damaging hurricane force winds, flash flooding potential, & damaging waves are expected on #Bermuda late Wednesday into Thursday. Life-threatening rip currents at U.S. East Coast beaches will conti... https://x.com/NHC_Atlantic/status/1973223073655472491

2 3

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 9d

#NationalCoffeeDay is a regular celebration on my part, and it’s for everyone’s safety.

4

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 9d

2

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 9d

Especially on a Monday, near the end of a fiscal year. ☕️☕️☕️☕️

a cup of coffee with the words " coffee is the best "

ALT: a cup of coffee with the words " coffee is the best "

media.tenor.com

1 1

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 10d

3:07 PM EDT, 9/28: #TropicalStormImelda has formed in the #AtlanticOcean Basin, with a #FujiwharaEffect anticipated to come into play (with present forecasts being favorable in lessening U.S. impacts).

National Hurricane Center - Atlantic Alerts (UNOFFICIAL) @nhc-atlc.nws-bot.us · 10d

NHC Atlantic Outlook update for Sun, 28 Sep 2025 17:55:03 UTC
Additional Details Here.

ZCZC MIATWOAT ALL<br>TTAA00 KNHC DDHHMM<br><br>Tropical Weather Outlook<br>NWS National Hurricane Center Miami FL<br>200 PM EDT Sun Sep 28 2025<br><br>For the North Atlantic...Caribbean Sea and the Gulf of America:<br><br>Active Systems:<br>The National Hurricane Center is issuing advisories on recently <br>upgraded Tropical Storm Imelda, located near the central Bahamas, <br>and on Hurricane Humberto, located over the southwestern subtropical <br>Atlantic. <br><br>Tropical cyclone formation is not expected during the next 7 days.<br><br>$$<br>Forecaster Papin<br>NNNN<br><br><br>

3 4

Reposted by Dr. Stephen Bieda III

National Hurricane Center - Atlantic Alerts (UNOFFICIAL) @nhc-atlc.nws-bot.us · 11d

Atlantic Hurricane Humberto Advisory Number 13 issued at Sat, 27 Sep 2025 20:43:50 +0000
...HUMBERTO QUICKLY STRENGTHENS TO A CATEGORY 5 HURRICANE...
Additional Details Here.

000WTNT33 KNHC 272043TCPAT3 BULLETINHurricane Humberto Advisory Number 13NWS National Hurricane Center Miami FL AL082025500 PM AST Sat Sep 27 2025 ...HUMBERTO QUICKLY STRENGTHENS TO A CATEGORY 5 HURRICANE... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION----------------------------------------------LOCATION...22.9N 61.1WABOUT 350 MI...560 KM NNE OF THE NORTHERN LEEWARD ISLANDSABOUT 685 MI...1105 KM SSE OF BERMUDAMAXIMUM SUSTAINED WINDS...160 MPH...260 KM/HPRESENT MOVEMENT...WNW OR 285 DEGREES AT 10 MPH...17 KM/HMINIMUM CENTRAL PRESSURE...925 MB...27.32 INCHES WATCHES AND WARNINGS--------------------There are no coastal watches or warnings in effect. Interests in Bermuda should monitor the progress of Humberto. DISCUSSION AND OUTLOOK----------------------At 500 PM AST (2100 UTC), the center of Hurricane Humberto waslocated near latitude 22.9 North, longitude 61.1 West. Humberto ismoving toward the west-northwest near 10 mph (17 km/h). A turn toward the northwest is anticipated on Sunday. Humberto is forecast to then turn northward and move west of Bermuda by Tuesday evening. Maximum sustained winds have increased to near 160 mph (260 km/h) with higher gusts. Humberto is now a category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Humberto will likely remain a powerful major hurricane for the next several days. Hurricane-force winds extend outward up to 25 miles (35 km) from thecenter and tropical-storm-force winds extend outward up to 125 miles(205 km). The estimated minimum central pressure is 925 mb (27.32 inches). HAZARDS AFFECTING LAND----------------------SURF: Swells generated by Humberto will affect portions of the northern Leeward Islands, the Virgin Islands, Puerto Rico, and Bermuda beginning tonight and continuing through next week. Swells from Humberto will also affect the U.S. East Coast beginning Monday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY-------------Next complete advisory at 1100 PM AST. $$Forecaster Bookbinder/D. Zelinsky

Hurricane Humberto 5-Day Uncertainty Track Image

Hurricane Humberto 34-Knot Wind Speed Probabilities

10 15

Reposted by Dr. Stephen Bieda III

National Weather Service @nws.noaa.gov · 11d

Potential Tropical Cyclone #Nine Advisory 3A: Disturbance Gradually Becoming Better Organized. Expected to Become a Tropical Storm and Produce Significant Rainfall Over Portions of Eastern Cuba and the Bahamas. hurricanes.gov

1. The disturbance is forecast to become a tropical storm this
weekend and bring tropical storm conditions to portions of the
central and northwestern Bahamas, where Tropical Storm Warnings are
in effect.

2. Rainfall associated with this system is expected to impact
eastern Cuba, Hispaniola, Jamaica, and the Bahamas through the
weekend, which will likely produce flash and urban flooding.
Mudslides are possible in the higher terrain.

3. There is an increasing threat of heavy rainfall early next
week from coastal Georgia through the Carolinas and into the
southern Mid-Atlantic states, which could cause flash, urban, and
river flooding.

4. The system is expected to be at or near hurricane intensity
when it approaches the southeast U.S. coast early next week, where
there is a risk of storm surge and wind impacts. Residents in that
area should monitor updates to the forecast and ensure they have
their hurricane plan in place.

2 27 76

Reposted by Dr. Stephen Bieda III

Michael Fischer @mikefischerwx.bsky.social · 12d

Update: Hurricane #Humberto has intensified 55 kt in the last 12 h… extreme RI ongoing. Anomalous upshear convection is again a tell for subsequent RI. Thankfully the storm is well away from land for now.

2 7 29

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 13d

a cartoon of a cat with the words " you can do it " above it

ALT: a cartoon of a cat with the words " you can do it " above it

media.tenor.com

4

Reposted by Dr. Stephen Bieda III

Capital Weather Gang @capitalweather.bsky.social · 13d

6:05pm: TORNADO WARNING in northeast Loudoun County north of Leesburg includes Waterford. Warning goes until 6:30pm. Take cover in interior room on lowest floor. #cwgalert

1 7 17

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 13d

a man with a beard says the word swell in front of him

ALT: a man with a beard says the word swell in front of him

media.tenor.com

2

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 13d

8:48 AM EDT, 9/25: Calm down there HFAI with #Invest94L. More seriously, interactions with #TropicalStormHumberto presents significant uncertainty on what the system will do off the southeast coast, as the strength and position of both will be a factor. #Fujiwhara #HurricaneSeason2025 #AtlanticBasin

1 1 7

Reposted by Dr. Stephen Bieda III

National Hurricane Center Bot @nhcbot.bsky.social · 15d

@NHC_Atlantic: 8p EDT Tues 9/23- We are monitoring 2 disturbances that are likely to become tropical depressions this week. The western one #AL94 could form near the Bahamas in a few days, with a heavy rain threat for the Lesser Antilles, Puer... https://x.com/NHC_Atlantic/status/1970638241247187073

5 16

Reposted by Dr. Stephen Bieda III

Oklahoma Mesonet @mesonet.org · 16d

Severe threat is on the rise late tonight through early morning tomorrow. All severe hazards possible, tornado threat is low. Stay weather aware, and keep your head on a swivel! #okwx #okmesonet

2 4 20

Reposted by Dr. Stephen Bieda III

Alex Boreham @cyclonicwx.bsky.social · 16d

Now a Category 4, #Gabrielle's satellite presentation continues to improve. Great time to watch the mesoscale loop as the sun goes down!

1 9 55

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 16d

Another work week has arrived. ☕️ #MondayTruths

3

Reposted by Dr. Stephen Bieda III

Alex Boreham @cyclonicwx.bsky.social · 18d

A well-organized storm in the Atlantic not named Erin?? #Gabrielle is fairly well put together today with recon going in and finding a relatively well aligned #Gabrielle with pressures having fallen to around 1000mb. Notable that the LLC is quite tight so it has potential to ramp up quick

4 10

Reposted by Dr. Stephen Bieda III

National Hurricane Center - Atlantic Alerts (UNOFFICIAL) @nhc-atlc.nws-bot.us · 21d

Atlantic Tropical Storm Gabrielle Advisory Number 2 issued at Wed, 17 Sep 2025 14:57:05 +0000
...GABRIELLE FORMS OVER THE CENTRAL TROPICAL ATLANTIC... ...FORECAST TO REMAIN OVER OPEN WATERS FOR SEVERAL DAYS...
Additional Details Here.

990 WTNT32 KNHC 171457TCPAT2 BULLETINTropical Storm Gabrielle Advisory Number 2NWS National Hurricane Center Miami FL AL072025Issued by the NWS Weather Prediction Center College Park MD1100 AM AST Wed Sep 17 2025 ...GABRIELLE FORMS OVER THE CENTRAL TROPICAL ATLANTIC......FORECAST TO REMAIN OVER OPEN WATERS FOR SEVERAL DAYS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION-----------------------------------------------LOCATION...17.5N 46.6WABOUT 1085 MI...1745 KM E OF THE NORTHERN LEEWARD ISLANDSMAXIMUM SUSTAINED WINDS...45 MPH...75 KM/HPRESENT MOVEMENT...NNW OR 330 DEGREES AT 22 MPH...35 KM/HMINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS--------------------There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK----------------------At 1100 AM AST (1500 UTC), the center of poorly defined Tropical Storm Gabrielle was located near latitude 17.5 North, longitude 46.6 West. Gabrielle is moving toward the north-northwest near 22 mph (35 km/h). An erratic northwestward to west-northwestward motion at a reduced forward speed is anticipated across the tropical and subtropical central Atlantic during the next few days. Satellite-derived winds indicate that the maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Little change in strength is forecast during the next 48 hours but some gradual intensification is forecast over the weekend. Tropical-storm-force winds extend outward up to 175 miles (280 km)from the center, primarily in the eastern semicircle of the storm. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND----------------------None NEXT ADVISORY-------------Next complete advisory at 500 PM AST. $$Forecaster Taylor/Blake

Tropical Storm Gabrielle 5-Day Uncertainty Track Image

Tropical Storm Gabrielle 34-Knot Wind Speed Probabilities

7 12

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 21d

a cartoon badger is standing in a grassy field with the word badger written on the bottom

ALT: a cartoon badger is standing in a grassy field with the word badger written on the bottom

media.tenor.com

4

Dr. Stephen Bieda III @drwildcatwx.bsky.social · 22d

4:53 PM EDT, 9/16: #SevereThunderstormWarning for #Northampton County in #Virginia as an intense band of #thunderstorms associated with the coastal low off the eastern coast comes ashore. #Wind gusts around 60 MPH, very heavy #rainfall, and coastal surge ~1-2 feet above tide possible. #VAWx

1 3