National Weather Service State College, PA Weather Impact Matrix for York County Decision Support Valid: 05/01/2025 04 PM - 05/02/2025 12 AM EDT

Thu 05/01 4 PM Thu 05/01 5 PM Thu 05/01 6 PM Thu 05/01 7 PM Thu 05/01 8 PM Thu 05/01 9 PM Thu 05/01 10 PM Thu 05/01 11 PM Fri 05/02 12 AM Temperature 80°F 80°F 77°F 75°F 72°F 69°F 67°F 67°F 66°F Heat Index 80°F 80°F 77°F 75°F 72°F 69°F 67°F 67°F 66°F Wind Speed 10 mph 10 mph 10 mph 9 mph 9 mph 8 mph 6 mph 6 mph 5 mph Wind Direction SE SE SE SE SE SE SE SE S Wind Gust 16 mph 16 mph 16 mph 16 mph 17 mph 17 mph 16 mph 14 mph 14 mph Chance of Precipitation 38% 45% 45% 45% 62% 62% 62% 51% 51% Weather Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Rain Sky Cover 65% 71% 77% 84% 82% 83% 84% 85% 86% Relative Humidity 40% 41% 45% 50% 55% 73% 81% 83% 84% Rainfall 0.01 in 0.01 in 0.01 in 0.01 in 0.04 in 0.04 in 0.04 in 0.04 in 0.04 in Issued: Thursday May 01, 2025 03:03 PM EDT

Threat Level	None	Limited	Elevated	Significant	Extreme
Temperature	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Heat Index	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Wind Speed	≤10 mph	10 to 14 mph	15 to 24 mph	25 to 34 mph	≥35 mph
Wind Gust	≤15 mph	15 to 24 mph	25 to 34 mph	35 to 44 mph	≥45 mph
Chance of Precipitation	≤15 %	15 to 24 %	25 to 54 %	55 to 74 %	≥75 %
Relative Humidity	≥15 %	15 to 21 %	20 to 31 %	30 to 41 %	≤40 %
Rainfall	≤0.1 in	0.1 to 0.24 in	0.25 to 0.49 in	0.5 to 0.99 in	≥1.0 in

Note -

Grey color indicates no thresholds assigned