04/04/2026
SEVERE WEATHER BULLETIN: Significant Outbreak Expected (Apr 4-5)
Issue Time: Sat Apr 04 2026, 0559 UTC
Valid Period: Sat Apr 04 2026, 1200 UTC – Sun Apr 05 2026, 1200 UTC
A high-impact severe weather event is anticipated across portions of the Eastern and Southern United States today and tonight. The Storm Prediction Center has issued a Day 1 convective outlook identifying multiple distinct risk zones.
KEY RISK AREAS:
⚠️ ENHANCED RISK (Yellow): A substantial cluster of severe thunderstorms is expected from the Ohio Valley across portions of the Northeast and Southeast. Large, destructive hail and numerous damaging wind gusts are likely.
⚠️ SLIGHT RISK (Green): A broader corridor of severe potential extends from Texas to the East Coast, with the potential for more isolated reports of wind, hail, and tornadoes.
⚠️ MARGINAL RISK (Dark Green): Surrounding the Slight and Enhanced risk areas, storms here pose a lower, more isolated threat.
SPECIFIC HAZARD FORECASTS:
🌪️ TORNADO OUTLOOK: A focused area of tornado potential (green hatching) exists over the Southern Ohio Valley. While a low probability (2-5%) of a significant tornado is forecast, any tornado is dangerous. Be alert for warnings.
💨 WIND OUTLOOK: Extensive areas face a severe wind threat (shaded), with a concentrated significant wind risk (yellow hatching) centered over parts of Pennsylvania and neighboring states. Expect winds of 60-70+ mph.
🧊 HAIL OUTLOOK: The risk for damaging hail is low for all areas (