National Weather Service State College, PA Weather Impact Matrix for Northumberland County Decision Support Valid: 03/12/2025 08 AM - 03/12/2025 08 PM EDT

Wed 03/12 8 AM Wed 03/12 9 AM Wed 03/12 10 AM Wed 03/12 11 AM Wed 03/12 12 PM Wed 03/12 1 PM Wed 03/12 2 PM Wed 03/12 3 PM Wed 03/12 4 PM Wed 03/12 5 PM Wed 03/12 6 PM Wed 03/12 7 PM Wed 03/12 8 PM Temperature 35°F 37°F 40°F 43°F 46°F 49°F 49°F 50°F 52°F 53°F 52°F 51°F 49°F Wind Chill 32°F 34°F 40°F 42°F 46°F 49°F 47°F 49°F 52°F 53°F 52°F 49°F 48°F Wind Speed 3 mph 3 mph 2 mph 2 mph 2 mph 2 mph 3 mph 3 mph 4 mph 4 mph 3 mph 3 mph 3 mph Wind Direction N N NE NE NE E E SE SE SE SE SE E Wind Gust 11 mph 11 mph 10 mph 9 mph 9 mph 9 mph 10 mph 11 mph 11 mph 12 mph 11 mph 11 mph 11 mph Chance of Precipitation 0% 1% 1% 1% 2% 2% 4% 4% 6% 7% 10% 15% 17% Weather None None None None None None None None None None None Rain Rain Sky Cover 58% 59% 60% 62% 69% 76% 83% 78% 73% 69% 65% 61% 57% Relative Humidity 65% 61% 55% 50% 43% 37% 36% 35% 34% 33% 36% 39% 42% 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 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: Tuesday March 11, 2025 08:10 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