National Weather Service State College, PA Weather Impact Matrix for Northumberland County Decision Support Valid: 08/14/2025 02 PM - 08/15/2025 12 AM EDT

Thu 08/14 2 PM Thu 08/14 3 PM Thu 08/14 4 PM Thu 08/14 5 PM Thu 08/14 6 PM Thu 08/14 7 PM Thu 08/14 8 PM Thu 08/14 9 PM Thu 08/14 10 PM Thu 08/14 11 PM Fri 08/15 12 AM Temperature 86°F 86°F 86°F 87°F 86°F 85°F 82°F 78°F 76°F 75°F 73°F Heat Index 92°F 93°F 91°F 92°F 91°F 89°F 87°F 78°F 76°F 75°F 73°F Wind Speed 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph Wind Direction N N N N NE N N N NE NE N Wind Gust 8 mph 9 mph 9 mph 8 mph 8 mph 8 mph 6 mph 6 mph 5 mph 5 mph 5 mph Chance of Precipitation 22% 27% 19% 11% 6% 11% 6% 6% 6% 5% 3% Weather Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder None None None None None None Sky Cover 51% 46% 46% 34% 24% 25% 17% 25% 25% 28% 29% Relative Humidity 62% 59% 60% 57% 57% 59% 65% 74% 79% 82% 86% Rainfall 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in Issued: Thursday August 14, 2025 01:58 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