National Weather Service State College, PA Weather Impact Matrix for York County Decision Support Valid: 03/09/2025 11 AM - 03/09/2025 10 PM EDT

Sun 03/09 11 AM Sun 03/09 12 PM Sun 03/09 1 PM Sun 03/09 2 PM Sun 03/09 3 PM Sun 03/09 4 PM Sun 03/09 5 PM Sun 03/09 6 PM Sun 03/09 7 PM Sun 03/09 8 PM Sun 03/09 9 PM Sun 03/09 10 PM Temperature 43°F 46°F 49°F 52°F 54°F 55°F 55°F 52°F 48°F 44°F 42°F 41°F Wind Chill 35°F 39°F 43°F 52°F 54°F 55°F 55°F 52°F 44°F 40°F 38°F 37°F Wind Speed 14 mph 17 mph 17 mph 17 mph 17 mph 16 mph 14 mph 12 mph 9 mph 5 mph 5 mph 5 mph Wind Direction W W W W W W W W W W W W Wind Gust 25 mph 26 mph 27 mph 27 mph 27 mph 26 mph 24 mph 21 mph 18 mph 13 mph 11 mph 9 mph Chance of Precipitation 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Weather None None None None None None None None None None None None Sky Cover 23% 38% 40% 42% 22% 10% 6% 5% 6% 9% 10% 10% Relative Humidity 40% 38% 37% 36% 34% 31% 31% 36% 44% 53% 57% 58% 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 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 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 Issued: Sunday March 09, 2025 10:48 AM 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