Mid-Atlantic Severe Weather Alert

Mid-Atlantic Severe Weather Alert MD Severe Weather Alert is a page created by a Baltimore area NOAA certified storm spotter.

Mid-Atlantic 24 Hour Information specializing in overnight and off hours severe weather Livestream coverage, also including public safety, driving and boating conditions reports This page will be used to alert people to severe, dangerous weather in the Maryland and outlying area. It will be available 24 hours 7 days a week year round to provide up to the minute information on severe weather event

s when they occur. A number of methods are used to update this info but will be made as simple and easy to understand as possible. This will include the Radarscope storm chasing app anyone can download and use, live storm spotter reports, local radar including airport radar, and when possible field observations and live first responder reports from monitor feeds in the area of the storms. I actively chase tornadoes and severe wind events also and report directly to the National Weather Service Office in Sterling VA and Mount Holly NJ for MD's eastern shore when possible. The goal of this page is to get warnings out as fast as possible or when no other pages and media are available, with updates to the minute during the event, 24 hours a day. I want to improve the speed of warnings in our area, especially after "normal business hours"... this has been a problem in our area for years. There will be SOME discussion of non life threatening weather events or news stories if it involves PUBLIC SAFETY ISSUES. There will be no advertising allowed, and there will be NO drama allowed in the posts. No personal information will be posted here (doxxing) no fatality reports, no political posts. REAL TIME, UP TO DATE ACCURATE INFORMATION FOR THE MID ATLANTIC AREA IN THE EVENT OF LIFE THREATENING WEATHER OR OTHER EVENTS INVOLVING PUBLIC SAFETY..

04/29/2026

[Weds 04/29/26 4:08 pm] Urgent weather message -Tornado Warning **CANCELLED 4:19pm**

National Weather Service Pittsburgh PA

404 PM EDT Wed Apr 29 2026

PAC063-292030-

10.CON.KPBZ.TO.W.0010.000000T0000Z-260429T2030Z/

Indiana PA-

404 PM EDT Wed Apr 29 2026
. TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR NORTHEASTERN INDIANA COUNTY...

At 404 PM EDT, a severe thunderstorm capable of producing a tornado was located 9 miles north of Indiana, moving east at 30 mph.

HAZARD...Tornado.

SOURCE... Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows and vehicles will occur. Tree damage is likely.

Locations impacted include... Marion Center and Rochester Mills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built building away from windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.

[Weds 4/8/26 4:04 pm] (updated 4/10 3:54 pm) (🚨⚠️ Very High Barometric Pressure Advisory! / Moderate barometric pressure...
04/08/2026

[Weds 4/8/26 4:04 pm] (updated 4/10 3:54 pm) (🚨⚠️ Very High Barometric Pressure Advisory! / Moderate barometric pressure shift!

We are currently in ⚠️ veryhigh barometric pressure! It has lowered some from earlier today but, we're still in very high barometric pressure! It was ⚠️ 1035 mb (30.56 hg) [recorded 4/8/26 at 11:31 am]!! It has since lowered to 1032 mb (30.47 hg) [4/8/26 4:04 pm at my location in Harford County, MD. ]

We've had an 11 mb (0.33 hg) increase ⬆️ in barometric pressure in the last 24 hours. We've gone from high barometric pressure 1024 mb (30.24 hg) to 1035 mb (30.56 hg) very high barometric pressure [recorded 4/8/26 - 11:31 am at my location in Harford County, MD. ]

While this is only a moderate shift in pressure and most people may not notice the shift. Those with barometric pressure issues are probably going to be feeling it, especially since we're currently in very high barometric pressure as well.

Even those individuals that don't normally experience problems from barometric pressure. Might be today because of the barometric pressure being very high!

⚠️Those with seizure disorders or that have friends, family members or pets that do You may want to keep an eye on them. Because, there is an increased risk for seizure activity with such a large shift! **The risk increases 3x for every 5.5 mb (0.16 hg)! ⚠️

If you would like to receive these alerts directly to your Facebook Messenger, please sign up for one of the broadcast channels by scrolling to the top of the Mid-Atlantic Severe Weather Alert. page. The first channel is utilized for regular hours. The Overnight Channel is then from after approximately 10:30 pm until 7:00 a.m. (* If you wish to receive the notifications but sometimes wish to mute the notification sound, there is an option within the settings to do so. )

Even a moderate change in pressure in a short period of time might also cause problems for people as the gases, fluids and tissues inside of our bodies as they are trying to adjust to outside Atmospheric Pressure. Which right now the heavier air, from the Very High Barometric Pressure is pushing down on everything. Including our bodies, compressing things more. Your body may even feel heavier due to it.

High-pressure systems often lead to "subsidence," where air sinks toward the ground. This can trap pollutants, allergens, or smoke near the surface (a temperature inversion). For individuals with asthma or COPD, this concentrated poor air quality can make breathing feel more labored.

While low pressure causes tissues to expand, high pressure exerts more external force on the body. Some individuals are highly sensitive to these shifts, and the change in pressure can cause a sensation of "heaviness" in the chest or sinuses as the body adjusts to the weight of the atmosphere.

High pressure usually brings very dry air. Dry air can irritate the mucous membranes in the nose and throat, potentially causing: Increased coughing. and a feeling of tightness in the chest and dry nasal passages.

The ocean and other bodies of water will have much lower tides than normal because, of this as well. Which can cause problems for Large Ships since, the water will be more shallow.

If you're feeling more tired than usual today or experiencing other issues, such as an increase in Pain level, Sinus Issues, Feeling Drained like you just got off of a long flight, Brain Fog, a "flare" of some medical conditions, as well as other problems the current Very High Barometric Pressure may be responsible for you not feeling your best.

Some of you have likely been feeling that swing in Pressure too. Because, it is not just Low or High Barometric Pressure that can cause problems for people. * Barometric pressure can also cause problems for pets or other animals as well!

If you would like to monitor the barometric pressure yourself and for those of you particularly that have problems with seizures, I would strongly recommend it! Below you will find a link to a post with a download link for the Barometer Plus app I use as well as setup instructions in the comments. That need to be followed to make sure it functions correctly. There is also an additional setting within the app that you can have it notify you if there's been much of a barometric pressure shift. 📌

https://www.facebook.com/share/p/1CCeN6SjmW/

🫂I f you need Support or more Information you may want to consider joining Barometric Pressure Support & Information or Under The Stairwell and In The Bathtub: Storm Anxiety Exhange

Like many of you, I am also affected by barometric pressure changes and I'll be really glad when this stuff settles down! I've been pretty busy today which is why I didn't notice this sooner. But,I knew that I wasn't feeling my best. So, I decided to check the barometric pressure and there was my answer! Gentle hugs to all the other people with Ehlers-Danlos Syndrome and other conditions that are affected. Hang in there!
-Jen







04/01/2026

[Weds 4/1/26 7:00 pm] Urgent weather message :Severe Thunderstorm Warning

BULLETIN IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Warning

National Weather Service Baltimore MD/Washington DC 641 PM EDT Wed Apr 1 2026.

The National Weather Service in Sterling Virginia has issued a

Severe Thunderstorm Warning for...

Central Washington County in north central Maryland... Northeastern Berkeley County in the Panhandle of West Virginia...

Until 715 PM EDT.

*At 641 PM EDT, a severe thunderstorm was located 7 miles west of Williamsport, or 8 miles north of Martinsburg, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE... Radar indicated.

IMPACT... Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles.

Locations impacted include.

Williamsport, Saint James, Halfway, Keedysville, Funkstown, Falling Waters, Sharpsburg, Fairplay, Hedgesville, and Big Spring.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a building.

Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.

&&

LAT... LON 3960 7765 3945 7772 3948 7780 3949 7776 3950 7778 3949 7779 3949 7783 3957 7804 3963 7800

TIME...MOT... LOC 2241Z 285DEG 21KT 3958 7796

HAIL THREAT... RADAR INDICATED

MAX HAIL SIZE...1.00 IN

WIND THREAT... RADAR INDICATED

MAX WIND GUST...60 MPH

$$

CJL

04/01/2026

[Weds 4/1/26 6:16 pm] Severe Thunderstorm Warning in effect until 6:45pm
Severe Weather Statement

National Weather Service Baltimore MD/Washington DC 610 PM EDT Wed Apr 1 2026

VAC059-153-012245-

/0.CON.KLWX.SV.W.0037.000000T0000Z-260401T2245Z/

Fairfax VA-Prince William VA-

610 PM EDT Wed Apr 1 2026
..A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR SOUTHEASTERN FAIRFAX AND SOUTHEASTERN PRINCE WILLIAM COUNTIES...

At 609 PM EDT, severe thunderstorms were located along a line extending from near Lake Ridge to Dale City to Dumfries to near Triangle, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE... Radar indicated.

IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles.

Locations impacted include..

Dale City, Annandale, Springfield, Groveton, Fort Belvoir, Woodbridge, Lake Ridge, Burke, Lincolnia, Montclair, Lorton, Franconia, Newington, Triangle, Dumfries, 1395 and 1495 Interchange, West Springfield, Cherry Hill, Mount Vernon, and Independent Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a building.

&&

LAT...LON 3870 7707 3869 7711 3862 7714 3861 7718

3862 7722 3858 7725 3856 7723 3856 7724

3853 7737 3863 7743 3870 7749 3882 7718

ΤΙΜΕ...ΜOT... LOC 2209Z 270DEG 33KT 3871 7740 3866 7735 3857 7732 3852

7737

HAIL THREAT... RADAR INDICATED

MAX HAIL SIZE...

04/01/2026

[ Weds 04/01/26 6:14pm] Urgent weather message: Severe Thunderstorm Warning

BULLETIN IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Warning

National Weather Service Baltimore MD/Washington DC

559 PM EDT Wed Apr 1 2026

The National Weather Service in Sterling Virginia has issued a

* Severe Thunderstorm Warning for...

Northwestern Garrett County in western Maryland...

* Until 645 PM EDT.

* At 559 PM EDT, a severe thunderstorm was located 7 miles north of Kingwood, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE... Radar indicated.

IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles.

* Locations impacted include...

Friendsville, Accident, Deep Creek Lake State Park, Swallow Falls State Park, McHenry, McComas Beach, Selbysport, and Keysers Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a building.

Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3969 7923 3944 7924 3946 7948 3968 7948

ΤΙΜΕ...ΜOT... LOC 2159Z 270DEG 25KT 3958 7967

HAIL THREAT... RADAR INDICATED

MAX HAIL SIZE...1.00 IN

WIND THREAT... RADAR INDICATED

MAX WIND GUST...60 MPH

$$

CJL

[Sat 3/28/26 11:34 am] (updated 10:47 pm)🚨⚠️ Very High barometric pressure advisory! / ⚠️ Significant/ rapid barometric ...
03/28/2026

[Sat 3/28/26 11:34 am] (updated 10:47 pm)🚨⚠️ Very High barometric pressure advisory! / ⚠️ Significant/ rapid barometric pressure shift!

We are currently in very high barometric pressure. We've also had a significant/ rapid increase ⬆️ in Barometric Pressure in the last 24 hrs! We've gone from normal barometric pressure 1015 mb (29.97 hg) to 1031 mb (30.44 hg) at my location [3/28/26 - 11:34 am] in Harford County, MD.

That is a significant / rapid increase in barometric pressure of
16 mb (0.47 hg) in the last 24 hours!

(I know everyone, I can literally hear your collective sighs, as you read this! Especially, since it's been less than 24 hours since I've made one of these posts! Sorry folks!)

It's March so this kind of stuff is typical for this time of year, unfortunately. The earliest that I would expect things to stabilize would potentially be late April (20th - 30th). However, we should get some breaks here and there. But, according to long range forecasting models, Things may not stabilize until Mid-May. Once the Atlantic Ocean waters get warmer . As I explained in another post yesterday.

⚠️Those with seizure disorders or that have friends, family members or pets that do You may want to keep an eye on them. Because, there is an increased risk for seizure activity with such a large shift! **The risk increases 3x for every 5.5 mb (0.16 hg)! ⚠️

If you would like to receive these alerts directly to your Facebook Messenger, please sign up for one of the broadcast channels by scrolling to the top of the Mid-Atlantic Severe Weather Alert. page. The first channel is utilized for regular hours. The Overnight Channel is then from after approximately 10:30 pm until 7:00 a.m. (* If you wish to receive the notifications but sometimes wish to mute the notification sound, there is an option within the settings to do so. )

A large change in pressure in a short period of time might also cause problems for people as the gases, fluids and tissues inside of our bodies as they are trying to adjust to outside Atmospheric Pressure. Which right now the heavier air, from the Very High Barometric Pressure is pushing down on everything. Including our bodies, compressing things more. Your body may even feel heavier due to it.

High-pressure systems often lead to "subsidence," where air sinks toward the ground. This can trap pollutants, allergens, or smoke near the surface (a temperature inversion). For individuals with asthma or COPD, this concentrated poor air quality can make breathing feel more labored.

While low pressure causes tissues to expand, high pressure exerts more external force on the body. Some individuals are highly sensitive to these shifts, and the change in pressure can cause a sensation of "heaviness" in the chest or sinuses as the body adjusts to the weight of the atmosphere.

High pressure usually brings very dry air. Dry air can irritate the mucous membranes in the nose and throat, potentially causing: Increased coughing. and a feeling of tightness in the chest and dry nasal passages.

The ocean and other bodies of water will have much lower tides than normal because, of this as well. Which can cause problems for Large Ships since, the water will be more shallow.

If you're feeling more tired than usual today or experiencing other issues, such as an increase in Pain level, Sinus Issues, Feeling Drained like you just got off of a long flight, Brain Fog, a "flare" of some medical conditions, as well as other problems the current Very High Barometric Pressure may be responsible for you not feeling your best.

A lot of you have likely been feeling that swing in Pressure too. Because, it is not just Low or High Barometric Pressure that can cause problems for people. * Barometric pressure can also cause problems for pets or other animals as well!

If you would like to monitor the barometric pressure yourself and for those of you particularly that have problems with seizures, I would strongly recommend it! Below you will find a link to a post with a download link for the Barometer Plus app I use as well as setup instructions in the comments. That need to be followed to make sure it functions correctly. There is also an additional setting within the app that you can have it notify you if there's been much of a barometric pressure shift. 📌

https://www.facebook.com/share/p/1CCeN6SjmW/

🫂I f you need Support or more Information you may want to consider joining Barometric Pressure Support & Information or Under The Stairwell and In The Bathtub: Storm Anxiety Exhange

Like many of you, I am also affected by barometric pressure changes and I'll be really glad when this stuff settles down! Not long after I woke up I realized that my back pain was really bad and I couldn't figure out why. So, then I checked the barometric pressure and there was my answer! Gentle hugs to all the other people with Ehlers-Danlos Syndrome and other conditions that are affected. Hang in there!
-Jen






03/27/2026

[Fri 3/27/26 5:41 pm] Lastest radar from Sterling, VA (LWX).
Showing ICE and ice/mixed rain (Marked in blue). Also Showing snow in Pennsylvania. With rain showing in Maryland and Virginia.


03/27/2026

[Fri 3/27/26 5:29 pm] Since I know that a lot of you have been asking when the weather patterns will become more stable/ calmer?

True atmospheric stability—usually arrives once the jet stream migrates further north and the Atlantic waters begin to warm.

Granted the normal weather patterns that occur this time of year as well as models. The earliest I would expect to see things settle down would be: Late April (April 20th–30th): This is when the frequency of "cold shots" typically diminishes. In the Mid-Atlantic region the last frost date ranges from April 4th to April 24th, depending on specific elevation and local microclimates.

However most long-range models suggest a more consistent "locking in" of warmer, more stable patterns by mid-May. May is currently forecast to have normal precipitation and slightly above-average temperatures, indicating a return to more predictable seasonal behavior. -Jen

[Friday 3/27//26 - 3:15 pm] (edited 5:24 pm)⚠️ Significant Rapid Barometric Pressure Shift! We've had a significant...
03/27/2026

[Friday 3/27//26 - 3:15 pm] (edited 5:24 pm)⚠️ Significant Rapid Barometric Pressure Shift!

We've had a significant/ rapid increase ⬆️ in Barometric Pressure in the last 24 hrs! We've gone from low barometric pressure
1002 mb (29.58 hg) to normal barometric pressure 1016 mb (29.70 hg) at my location [3/27/26 - 3:26] pm in Harford County, MD.

That is a significant / rapid increase in pressure of 14 mb
(0.41 hg) in the last 24 hours!

⚠️Those with seizure disorders or that have friends, family members or pets that do You may want to keep an eye on them. Because, there is an increased risk for seizure activity with such a large shift! **The risk increases 3x for every 5.5 mb (0.16 hg)! ⚠️

If you would like to receive these alerts directly to your Facebook Messenger, please sign up for one of the broadcast channels by scrolling to the top of the page.

A lot of you have likely been feeling that swing in Pressure too. Because, it is not just Low or High Barometric Pressure that can cause problems for people. Most people are not going to have issues from this however.

Some of you may have had trouble sleeping/ pain or other issues last night because of when the pressure dropped low and may have started feeling poor today because of all the such a significant shift in barometric pressure.

Mother Nature isn't letting us off this ride yet folks! Strap-in!

Since I know that a lot of you have been asking when the weather patterns will become more stable/ calmer? True atmospheric stability—usually arrives once the jet stream migrates further north and the Atlantic waters begin to warm. Granted the normal weather patterns that occur this time of year as well as models. The earliest I would expect to see things settle down would be: Late April (April 20th–30th): This is when the frequency of "cold shots" typically diminishes. In the Mid-Atlantic region the last frost date ranges from April 4th to April 24th, depending on specific elevation and local microclimates.
However most long-range models suggest a more consistent "locking in" of warmer, more stable patterns by mid-May. May is currently forecast to have normal precipitation and slightly above-average temperatures, indicating a return to more predictable seasonal behavior.

A large change in pressure in a short period of time might also cause problems for people as the gases, fluids and tissues inside of our bodies are trying to adjust to outside Atmospheric Pressure.

Some medical conditions/ symptoms that I've listed in previous posts will "flare" until the current conditions . It may be responsible for you not feeling your best.

There was a long post I made At the end of January this year where I basically wrote medical paper explaining all the symptoms that barometric pressure can cause. It was about low barometric pressure but a lot of this things included in that post still apply to the situation as well. Especially because we were in Low barometric pressure last night.

I'm going to link it here below because it's entirely too long to include all that information in this post. 📌

https://www.facebook.com/share/p/1KcWqKz21X/

If you would like to monitor the barometric pressure yourself and for those of you particularly that have problems with seizures, I would strongly recommend it! Below you will find a link to a post with a download link for the Barometer Plus app I use as well as setup instructions in the comments. That need to be followed to make sure it functions correctly. There is also an additional setting within the app that you can have it notify you if there's been much of a barometric pressure shift. 📌

https://www.facebook.com/share/p/1CCeN6SjmW/

🫂I f you need Support or more Information you may want to consider joining Barometric Pressure Support & Information or Under The Stairwell and In The Bathtub: Storm Anxiety Exhange

Like many of you, I am also affected by barometric pressure changes and I'll be really glad when this stuff settles down! Gentle hugs to all the other people with Ehlers-Danlos Syndrome and conditions that are affected. Hang in there!
-Jen






[Thursday 3/26/26 11:55pm] Flash Flood Warning remains in effect until 12:45 am National Weather Service Pittsburgh PA11...
03/27/2026

[Thursday 3/26/26 11:55pm] Flash Flood Warning remains in effect until 12:45 am
National Weather Service Pittsburgh PA

1133 PM EDT Thu Mar 26 2026
..FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FRIDAY FOR CENTRAL ALLEGHENY COUNTY...

At 1133 PM EDT, doppler radar and rain gauge reports indicate moderate rain across the warned area. Between 1 and 1.5 inches of rain have fallen with heavy rain in thunderstorms earlier this evening. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Public reported.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Some locations that will experience flash flooding include...

Pittsburgh, Penn Hills, Mount Lebanon, Ross Township, Monroeville, McKeesport, Shaler Township, West Mifflin, North Side Pittsburgh, Baldwin, Scott Township, Wilkinsburg, Whitehall, Robinson Township, Munhall, North Versailles and Brentwood.

Flash flooding of roads and low lying areas was reported this evening near Whitaker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

&&

LAT...LON 4051 8014 4050 7992 4044 7972 4040 7974

4039 7975 4039 7976 4037 7977 4031 7979

4030 7979 4039 8024

FLASH FLOOD... OBSERVED


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