WINTER STORM GIANNA
CALCULATING IMPACT...
Current Central Pressure. Rapid intensification observed. A historic winter event is unfolding across the entire US East Coast.
Peak Gusts
Max Snowfall
Affected Area
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🚨 Live NWS Weather Alerts
Real-time winter weather warnings, watches, and advisories from the National Weather Service for the Eastern Seaboard.
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Data Source: National Weather Service | Auto-refreshes every 5 minutes
📢 Live Reports & Updates
Real-time field reports from #WinterStormGianna and #BombCyclone2026.
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🌀 Weather Model Breakdown
Professional meteorologists use multiple computer models to forecast storms. Here's what each major model is predicting for Winter Storm Gianna.
GFS (American)
Global Forecast SystemNOAA's primary global model. Updates every 6 hours. Good for big-picture trends 3-7 days out, but can struggle with storm intensity.
6-10" for Boston, 4-8" NYC. Storm tracks slightly offshore, limiting totals for immediate coast.
ECMWF (Euro)
European Centre ModelOften considered the most accurate model worldwide. Excellent at predicting storm track and intensity 4-10 days out.
8-14" for Boston, 6-10" NYC. Closer track to coast = higher totals. Cape Cod could see 12"+.
NAM (Short-Range)
North American MesoscaleBest for 0-60 hour forecasts. High resolution captures local effects like terrain and coastal enhancement.
Highest snowfall rates 1-3"/hour during peak. Heavy banding possible over SE New England.
CMC (Canadian)
Canadian Meteorological CentreOften shows different solutions than American models. Useful for identifying alternative scenarios.
Slightly weaker storm. 4-8" Boston, 3-6" NYC. Faster exit = shorter duration event.
📊 Model Consensus Summary
What Models Agree On:
- Major nor'easter will impact East Coast
- Peak impacts Sunday into Monday
- Heaviest snow: Carolinas to SE New England
- 60-70 mph wind gusts near coast
Where Models Disagree:
- Exact storm track (±50 miles)
- Total snowfall amounts (±4")
- How quickly it exits
- NYC/Philly rain/snow line
Confidence Level:
Major storm is
certain.
Exact totals ± 4 inches.
🗺️ View Live Model Snowfall Maps
GFS Snowfall Map
American Model • Updated every 6 hours
Euro (ECMWF) Snowfall
European Model • Most accurate globally
NAM Snowfall Map
Short-range • High resolution detail
Pivotal Weather
Model comparison • Side-by-side view
Model imagery from Tropicaltidbits.com | Models update every 6-12 hours
Essential Survival Guides
Power Outage Guide
Learn how to safely use generators and keep your home warm without electricity.
Read More →Vehicle Emergency Kit
Essential items to keep in your car if you must travel during the storm.
Read More →Pipe Protection
Steps to prevent your plumbing from freezing during sub-zero temperatures.
Read More →❄️ Check Your Snowfall Forecast
Enter your ZIP code to get a personalized forecast for your area.
⚡ Live Power Outage Tracker
Real-time power outage data across the Eastern Seaboard. Track restoration efforts as Winter Storm Gianna unfolds.
🔴 Live Power Outage Map
Track real-time power outages across the Eastern Seaboard as Winter Storm Gianna unfolds.
View Live Outage Data →Powered by PowerOutage.us — Updated continuously
Contact your utility provider immediately to report power loss and get restoration estimates.
Frequently Asked Questions
When does Winter Storm Gianna start?
Winter Storm Gianna is expected to begin impacting mid-Atlantic states Friday evening (January 30th, 2026) and continue through Saturday night into Sunday morning for New England.
How much snow will Winter Storm Gianna bring?
Snowfall totals are forecast to range from 3-8 inches in the mid-Atlantic to 6-14 inches for Coastal New England. Coastal areas may also experience blizzard conditions with wind gusts up to 75 mph.
What states are affected by the Bomb Cyclone 2026?
The Bomb Cyclone is expected to impact South Carolina, North Carolina, Virginia, Maryland, Delaware, New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, and Maine.
What is a Bomb Cyclone?
A Bomb Cyclone is an extratropical cyclone that intensifies rapidly—with its central barometric pressure dropping at least 24 millibars in 24 hours. This rapid intensification is called "bombogenesis" and leads to extreme winds and heavy precipitation.
Should I evacuate or shelter in place?
In most cases, sheltering in place with adequate supplies is recommended. However, if you are in a flood-prone coastal area or a mobile home, consider relocating to a sturdier structure before the storm arrives. Always follow local emergency management guidance.
72-Hour Emergency Survival Kit
Complete 2-person kit includes food, water, first aid, flashlight, emergency blankets, and more. Ready to grab when the power goes out.
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Live Reports & Updates
Real-time field reports from #WinterStormGianna and #BombCyclone2026.
⚠️ BLIZZARD WARNING: Visibility falling to zero. DO NOT TRAVEL. #Gianna
Historic pressure drop recorded. Gianna is now a true Bomb Cyclone.
State of Emergency confirmed for all counties. #SCWX