National Weather Service State College, PA Weather Impact Matrix for York County Decision Support Valid: 04/26/2025 08 AM - 04/26/2025 08 PM EDT

Sat 04/26 8 AM Sat 04/26 9 AM Sat 04/26 10 AM Sat 04/26 11 AM Sat 04/26 12 PM Sat 04/26 1 PM Sat 04/26 2 PM Sat 04/26 3 PM Sat 04/26 4 PM Sat 04/26 5 PM Sat 04/26 6 PM Sat 04/26 7 PM Sat 04/26 8 PM Temperature 65°F 66°F 69°F 71°F 74°F 73°F 74°F 75°F 72°F 71°F 68°F 65°F 60°F Wind Chill 65°F 66°F 69°F 71°F 74°F 73°F 74°F 75°F 72°F 71°F 68°F 65°F 60°F Wind Speed 10 mph 10 mph 10 mph 10 mph 10 mph 11 mph 10 mph 12 mph 13 mph 13 mph 13 mph 13 mph 14 mph Wind Direction SW SW SW SW W W W W W W NW NW NW Wind Gust 20 mph 20 mph 20 mph 20 mph 20 mph 21 mph 20 mph 23 mph 23 mph 24 mph 25 mph 25 mph 25 mph Chance of Precipitation 79% 84% 87% 54% 43% 33% 39% 46% 25% 2% 0% 1% 6% Weather Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder None None None None Sky Cover 92% 91% 91% 88% 81% 78% 57% 61% 44% 46% 17% 9% 9% Relative Humidity 93% 90% 84% 80% 71% 73% 69% 65% 66% 61% 57% 57% 64% Rainfall 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.01 in 0.01 in 0.01 in 0.01 in 0.01 in 0.01 in 0.0 in Snow Accumulation 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 0.0 in 0.0 in Ice Accumulation 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 0.0 in 0.0 in Issued: Friday April 25, 2025 08:04 PM EDT

Threat Level	None	Limited	Elevated	Significant	Extreme
Temperature	≥10 °F	10 to 1 °F	0 to -9 °F	-10 to -24 °F	≤-25 °F
Wind Chill	≥10 °F	10 to 1 °F	0 to -9 °F	-10 to -24 °F	≤-25 °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
Snow Accumulation	≤0.1 in	0.1 to 0.9 in	1.0 to 2.9 in	3.0 to 5.9 in	≥6.0 in
Ice Accumulation	≤0.01 in	0.01 to 0.09 in	0.1 to 0.24 in	0.25 to 0.49 in	≥0.5 in

Note -

Grey color indicates no thresholds assigned