🌱 US Weather Warriors GrowCast — Saturday, July 18, 2026
Heat Advisory and Flood Watch stack up today as storms ride a moist, unstable pattern into Delmarva.
Today's Weather Snapshot: Highs run 81°F at Ocean City to 94°F at Georgetown, with lows near 73°F. Scattered to numerous thunderstorms, PoP up to 87% north and central. South winds near 10-21 mph, gustier under storms. Humidity is oppressive — dewpoints and RH stay near saturation. Canadian wildfire smoke is flagged in the AFD; Air Quality Alerts are widespread.
Soil & Recent Rainfall: 2-inch soil temps average 77.5°F across six DEOS stations, ranging 73.2-80.3°F. Up to 0.33" fell in the last 24 hours; DDFS is running wet while DGES stays dry. Topsoil is mixed but trending saturated where storms trained overnight.
Best Outdoor Work Window: Early morning before 10 AM is the safest slot — heat, storms, and air quality all deteriorate through the afternoon. If storms fire early in your area, skip today and target Sunday morning.
Planting & Transplanting: Soil is plenty warm for anything warm-season, but the rule label says Delay tender transplants until the pattern breaks. Wet ground plus storm-force gusts will punish fresh sets. Hold tomatoes, peppers, squash, and cucurbit transplants for a drier window.
Watering & Irrigation: Hold off. With 0.33" already down at wetter stations and another round of storms likely, natural rainfall will cover the crop. Reassess Monday once totals settle.
For Gardeners: Shade cloth or afternoon shade helps lettuce, spinach, and brassicas resist bolting under this heat. Harvest ripe tomatoes and squash early to avoid split fruit from heavy downpours. Stake tall flowers and beans before the next storm gust arrives.
For Farmers & Growers: Field workability is Poor — wet ground and lightning risk close most tractor work today. Spray windows are effectively shut with 21 mph gusts and thunderstorm coverage. If hay is on the ground, it stays down; do not cut fresh with the flood signal active.
Looking Ahead (6-10 day signal): CPC 6-10 day trends below normal on both temperature and rainfall; drought-free across DE, MD, VA.
Bottom Line: Heat, storms, and saturated ground make this a stand-down day — work early, skip planting, let the sky do the watering.
— US Weather Warriors #DelmarvaWeather #GardenWeather #FarmWeather