Scorching 100° Heat Index: Late Storms Incoming
D.C. Area Weather Alert: Storms, Heat, and What You Need to Know Right Now
Important: This article covers active severe weather alerts for the Washington, D.C. region. Conditions can change quickly. Always check the latest alerts before heading out.
4 Big Things to Know About Today’s Weather
- It’s hot and sticky. Temperatures are in the mid-90s, but with humidity, it feels like 100°F.
- Strong to severe storms are likely this afternoon and evening. The main threats are damaging winds and heavy rain that could cause flash flooding.
- The stormy pattern continues Tuesday and Wednesday. Expect more afternoon/evening storms with heavy downpours.
- Relief is coming later this week. High temperatures should drop into the mid-80s by Friday.
Current Active Weather Alerts (As of Monday Afternoon)
Callout: Take These Seriously! A Watch means conditions are favorable for bad weather. A Warning means it is happening now or imminent. Take shelter immediately if a Warning is issued for your location.
Tornado Warning
- Where: North of D.C., in the Baltimore area (parts of Anne Arundel and Howard Counties).
- Until: 4:45 PM today.
- Action: If you are in these areas, go to an interior room on the lowest floor of a sturdy building NOW.
Severe Thunderstorm Warnings
- Where: Large portions of the D.C. metro area.
- Specific Areas Included:
- D.C.: The District of Columbia.
- Maryland: Parts of Montgomery, Prince George’s, and Frederick Counties.
- Virginia: Arlington, Fairfax, Fauquier, Loudoun, Prince William, and Stafford Counties, plus the cities of Alexandria, Falls Church, Fairfax, Manassas, and Manassas Park.
- Threats: Wind gusts over 58 mph, large hail, frequent lightning, and torrential rain.
Flash Flood Warnings
- Where: Frederick and Washington Counties in Maryland.
- Threat: Life-threatening flooding from heavy rainfall. Never drive through flooded roads. Turn Around, Don’t Drown®.
Severe Thunderstorm Watch
- Where: The entire D.C. region.
- Until: 9:00 PM tonight.
- Meaning: Stay alert. Storms could pop up and turn severe quickly.
Check All Alerts Live: NBC Washington Severe Weather Alerts Page
The Heat Factor
It’s not just the temperature; it’s the humidity.
- Actual Highs: Mid-90s (°F).
- Heat Index ("Feels Like"): Approaching 100°F.
- Why it matters: High humidity stops sweat from evaporating, making it harder for your body to cool down. This increases the risk of heat exhaustion and heat stroke.
Heat Safety Checklist:
- Drink water before you feel thirsty.
- Limit strenuous outdoor activity during peak heat (12 PM – 4 PM).
- Check on neighbors, elderly relatives, and pets.
- Never leave kids or pets in a parked car.
Stay Connected On The Go
Don’t get caught off guard. Download the free NBC Washington App to get:
- Live interactive radar.
- Push notifications for warnings issued for your exact location.
- Hour-by-hour forecasts.
Download for iOS (Apple App Store) | Download for Android (Google Play Store)
Your Day-by-Day "QuickCast" (Mon – Wed)
Monday
- Day: Mostly sunny, hot, humid. Heat index near 100°. Highs: 91°–96°.
- Afternoon/Evening: Scattered strong to severe storms develop. Best chance: Late afternoon.
- Night: Storms end. Muggy and warm. Lows: 75°–77°.
Tuesday
- Day: Partly sunny, humid. Highs: 89°–93°.
- Afternoon/Evening (2 PM – 10 PM): Scattered storms return. Some may bring heavy rain and strong winds.
- Night: Showers and storms likely. Periods of heavy rain possible. Lows: 71°–74°.
Wednesday
- Day: Partly sunny, humid. Clouds may keep temps slightly lower. Highs: 87°–90°.
- Afternoon/Evening: Scattered showers and storms. Locally heavy rainfall possible.
The Light at the End of the Tunnel: Late Week Cool Down
| Day | Forecast Trend | High Temp Range |
|---|---|---|
| Thursday | Still warm, storm chances linger | Near 90° |
| Friday | Noticeably cooler & less humid | Mid 80s |
A gradual cooldown into the mid-80s is expected by Friday, bringing much more comfortable air.
Summary: Your Action Plan for the Next 48 Hours
- Right Now: Check if you are under a Warning (Tornado, Severe Thunderstorm, or Flash Flood). If YES → Take Shelter Immediately.
- This Afternoon/Evening: Keep an eye on the sky and radar. Have a way to get alerts (App, Weather Radio, TV).
- Driving? If you see flooding: Turn Around, Don’t Drown. If a Severe Thunderstorm Warning hits while driving: Pull over safely, avoid trees/power lines.
- Tonight: Storms should wind down after 9-10 PM, but stay muggy.
- Tuesday/Wednesday: Plan indoor backup plans for afternoon/evening outdoor activities. Keep umbrellas/rain gear handy.
- Hydration: Drink water constantly in this heat/humidity combo.
Frequently Asked Questions (FAQ)
1. What is the difference between a "Watch" and a "Warning"?
Think of baking cookies. A Watch means you have all the ingredients on the counter (flour, sugar, eggs) — bad weather could happen. A Warning means the cookies are in the oven baking right now — bad weather is happening or about to. Warnings require immediate action.
2. The alert says "Severe Thunderstorm." Is that just a strong rainstorm?
No. "Severe" has a strict scientific definition. It means the storm is producing (or capable of producing) wind gusts of 58 mph or higher (strong enough to snap tree limbs and knock out power) AND/OR hail 1 inch (quarter size) or larger. These storms can cause real damage.
3. What does "Heat Index" actually mean?
It’s the "Feels Like" temperature. Your body cools itself by sweating. When humidity is high, sweat can’t evaporate well, so your body can’t cool down. The Heat Index calculates what the temperature feels like to your body. A 95° day with high humidity can feel like 100°+ and is much more dangerous than a dry 95° day.
4. If I’m driving and a Flash Flood Warning is issued, what should I do?
Never drive through standing water. It only takes 6 inches of moving water to knock over an adult and 12 inches to float a car. The road underneath might be washed away completely. Turn Around, Don’t Drown. Find high ground and wait it out.
5. When will this stormy pattern finally end?
The pattern shifts later this week. A cold front is expected to push through by Friday, bringing highs down to the mid-80s with lower humidity. That will feel like a breath of fresh air compared to this week!
Stay Safe, Stay Informed. Keep checking Storm Team4 and the NBC Washington App for the very latest updates as this active weather pattern continues.
