There are several warm fronts on the weather map, in the Pacific Ocean off the coast of northern California extending north to British Columbia, where it intersects with a cold front; in Canada just east of Lake Superior, running north to intersect with a cold front; and along the Atlantic coast of the southeastern United States, ahead of the hurricane.
Warm Front | Lightning Frequency | <0.1 flashes/km²/year | 0.1 flashes/km²/year | 0.2 flashes/km²/year | 0.4 flashes/km²/year | 0.6 flashes/km²/year | 0.8 flashes/km²/year | 1 flash/km²/year | 2 flashes/km²/year | 4 flashes/km²/year | 6 flashes/km²/year | 8 flashes/km²/year | 10 flashes/km²/year | 20 flashes/km²/year | 30 flashes/km²/year | Less than 1 | 1–5 | 6–10 | 11–15 | More than 15 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Yukon | 2.57% | 1.17% | 39.3% | 42.1% | 0.676% | 0.532% | 2.01% | ||||||||||||||
Northwest Territories | 10.4% | 11.3% | 1.93% | 1.61% | 13.9% | 14.4% | 4.36% | 8.69% | |||||||||||||
Nunavut | 41.3% | 36.7% | 7.71% | 1.80% | 1.53% | 0.139% | |||||||||||||||
Nova Scotia | 8.11% | 10.6% | 36.1% | 17.3% | 27.8% | ||||||||||||||||
Prince Edward Island | 2.52% | 8.96% | 20.3% | 68.2% | |||||||||||||||||
Saskatchewan | 0.267% | 0.717% | 31.5% | 16.7% | 3.54% | ||||||||||||||||
New Brunswick | 0.276% | 0.234% | 58.0% | ||||||||||||||||||
Newfoundland and Labrador | 5.05% | 7.84% | 8.94% | 30.5% | 12.3% | 3.57% | 0.308% | ||||||||||||||
Alberta | 22.8% | 73.1% | 3.13% | ||||||||||||||||||
Québec | 11.0% | 4.90% | 11.5% | 3.83% | 3.39% | 3.67% | 19.7% | 17.8% | 0.183% | ||||||||||||
Manitoba | 2.65% | 4.40% | 2.91% | 25.0% | 48.7% | 10.4% | |||||||||||||||
Ontario | 2.17% | 2.58% | 3.28% | 0.872% | 19.2% | 2.31% | 2.14% | 0.326% | 0.285% | ||||||||||||
Alaska | 6.63% | 1.78% | 25.5% | 0.226% | 5.17% | 99.8% | |||||||||||||||
Arizona | 1.13% | 23.6% | 20.0% | 37.0% | 18.2% | 92.2% | 7.76% | ||||||||||||||
Utah | 22.2% | 65.3% | 0.130% | 100% | |||||||||||||||||
District of Columbia | 100% | 100% | |||||||||||||||||||
Florida | 0.168% | 52.7% | 47.1% | 64.2% | 35.5% | ||||||||||||||||
Idaho | 8.51% | 90.0% | 100% | ||||||||||||||||||
New Hampshire | 77.0% | 23.0% | 1.24% | 98.7% | |||||||||||||||||
Rhode Island | 100% | 99.3% | |||||||||||||||||||
Vermont | 4.97% | 95.0% | 77.1% | 22.6% | |||||||||||||||||
Washington | 1.04% | 10.6% | 19.8% | 20.2% | 12.1% | 35.6% | 0.648% | 99.9% | |||||||||||||
Wyoming | 48.7% | 16.7% | 16.6% | 10.4% | 7.61% | 87.7% | 12.3% | ||||||||||||||
Montana | 1.84% | 16.7% | 6.56% | 12.0% | 2.35% | 100% | |||||||||||||||
Maine | 5.45% | 71.9% | 40.0% | 59.8% | |||||||||||||||||
North Dakota | 5.40% | 24.2% | 48.6% | 17.6% | 29.5% | 70.5% | |||||||||||||||
Kentucky | 100% | 4.42% | 60.5% | 35.1% | |||||||||||||||||
Virginia | 0.585% | 33.4% | 66.0% | 10.3% | 89.6% | ||||||||||||||||
Delaware | 1.09% | 21.6% | 74.1% | 3.24% | 99.2% | ||||||||||||||||
Mississippi | 53.6% | 46.4% | 10.9% | 74.0% | 15.1% | ||||||||||||||||
West Virginia | 90.8% | 9.25% | 48.2% | 51.8% | |||||||||||||||||
Nebraska | 2.93% | 89.3% | 7.74% | 88.6% | 11.4% | ||||||||||||||||
Texas | 1.17% | 8.70% | 65.9% | 24.2% | 16.8% | 43.9% | 36.9% | 2.38% | |||||||||||||
Missouri | 97.2% | 2.76% | 23.4% | 62.5% | 14.1% | ||||||||||||||||
Louisiana | 100% | 30.4% | 69.5% | ||||||||||||||||||
Hawaii | 0.113% | 0.444% | 32.9% | 60.0% | 92.1% | ||||||||||||||||
North Carolina | 100% | 99.9% | |||||||||||||||||||
Oregon | 0.565% | 3.81% | 5.52% | 5.86% | 3.52% | 49.6% | 23.8% | 100% | |||||||||||||
Alabama | 41.8% | 58.2% | 69.5% | 16.4% | 14.0% | ||||||||||||||||
New Mexico | 7.94% | 33.3% | 53.7% | 90.2% | 9.71% | ||||||||||||||||
Kansas | 96.1% | 3.88% | 68.1% | 31.5% | |||||||||||||||||
Wisconsin | 0.368% | 53.9% | 28.7% | 12.9% | 3.74% | 13.1% | 53.1% | 33.7% | |||||||||||||
British Columbia | 1.64% | 6.95% | 12.6% | 20.1% | 4.57% | 5.28% | 0.164% | 6.19% | 2.52% | ||||||||||||
New Jersey | 9.73% | 90.3% | 19.5% | 80.3% | |||||||||||||||||
South Carolina | 85.1% | 14.9% | 99.9% | ||||||||||||||||||
Michigan | 1.83% | 31.7% | 16.4% | 14.6% | 8.66% | 34.8% | 64.8% | ||||||||||||||
Connecticut | 77.5% | 20.8% | 1.09% | 99.9% | |||||||||||||||||
Pennsylvania | 7.74% | 34.9% | 57.3% | 6.15% | 93.9% | ||||||||||||||||
Colorado | 3.18% | 32.7% | 15.2% | 10.5% | 30.1% | 8.34% | 69.4% | 30.6% | |||||||||||||
Nevada | 1.83% | 39.4% | 47.0% | 11.8% | 100% | ||||||||||||||||
Massachusetts | 2.27% | 79.0% | 18.5% | 99.5% | |||||||||||||||||
Georgia | 48.4% | 51.6% | 61.5% | 38.5% | |||||||||||||||||
New York | 16.1% | 65.1% | 18.0% | 0.137% | 61.6% | 38.3% | |||||||||||||||
Maryland | 2.23% | 17.7% | 58.3% | 21.7% | 99.3% | ||||||||||||||||
Oklahoma | 64.4% | 35.6% | 3.41% | 35.1% | 46.0% | 15.5% | |||||||||||||||
Tennessee | 100% | 41.3% | 58.7% | ||||||||||||||||||
California | 2.29% | 10.6% | 16.3% | 5.69% | 2.96% | 35.4% | 15.6% | 1.52% | 99.9% | ||||||||||||
Arkansas | 15.7% | 84.3% | 87.2% | 12.8% | |||||||||||||||||
South Dakota | 2.09% | 52.0% | 45.9% | 22.1% | 76.0% | 1.85% | |||||||||||||||
Ohio | 23.4% | 76.6% | 3.97% | 96.0% | |||||||||||||||||
Indiana | 100% | 62.9% | 37.1% | ||||||||||||||||||
Minnesota | 13.4% | 3.05% | 20.4% | 21.8% | 9.11% | 23.4% | 72.5% | 4.03% | |||||||||||||
Iowa | 5.30% | 6.65% | 14.4% | 73.6% | 50.0% | 50.0% | |||||||||||||||
Illinois | 1.50% | 98.5% | 70.3% | 29.6% | |||||||||||||||||
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