🌱 US Weather Warriors GrowCast — Wednesday, July 15, 2026
Dangerous heat headlines the day across Delmarva, with storms possible and Canadian wildfire smoke drifting in.
Today's Weather Snapshot: Highs 90-100°F, overnight lows near 78°F. Mostly hot and hazy; isolated thunderstorms possible inland. Winds around 10-15 mph. Humidity elevated; heat index will run well above air temperature. Extreme Heat Warning, multiple Heat Advisories, and Air Quality Alerts in effect.
Soil & Recent Rainfall: 2-inch soil temps ran 72.7-79.5°F (avg 77°F) across six DEOS stations. No measurable rainfall in the past 24 hours. Topsoil is neither flagged wet nor dry — workable moisture, but heat is drawing it down fast.
Best Outdoor Work Window: Work before 9 AM. Shut down heavy exertion by late morning and revisit after 7 PM if storms hold off.
Planting & Transplanting: Soil is plenty warm for anything warm-season, but the rule label says Delay — tender transplants set out into this heat will stall or die. Hold tomatoes, peppers, squash, and fall brassica starts in the shade until the pattern eases.
Watering & Irrigation: No rain fell, but hold heavy irrigation until you see what afternoon storms deliver. If skies stay dry through evening, water containers and new plantings deeply at dusk or before sunrise tomorrow.
For Gardeners: Prioritize shade cloth over lettuce, chard, and any lingering cool-season crops — bolting risk is real today. Deep-mulch tomatoes and peppers to buffer root-zone heat. Skip transplanting, pruning, and fertilizing until temps break.
For Farmers & Growers: Field workability is Poor on heat and storm timing, not on mud — plan crew work around dawn and dusk with hard hydration breaks. Spray windows are narrow: winds to 15 mph plus storm chances make afternoon applications a bad bet. Hay down now risks a thunderstorm hit; check radar before cutting.
Looking Ahead (6-10 day signal): CPC 6-10 day leans above-normal temps and above-normal precip; drought monitor shows no drought across DE, MD, or VA.
Bottom Line: Treat today as a heat-safety day — work early, delay planting, and let the storms decide your irrigation.
— US Weather Warriors #DelmarvaWeather #GardenWeather #FarmWeather