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Legend (environmental/Climate_Change_Impacts)

Temperature and Precipitation, All Scenarios (0)
Change (Fahrenheit) in Average Annual Temperature, 2050s, Low end projection (3)
4.5 4.5
4.4 4.4
4.3 4.3
4.1 4.1
Change (Fahrenheit) in Average Annual Temperature, 2050s, High end projection (4)
5.9 5.9
5.7 5.7
5.6 5.6
5.4 5.4
Change (Fahrenheit) in Average Annual Temperature, 2080s, Low end projection (6)
5.8 5.8
5.7 5.7
5.6 5.6
5.4 5.4
Change (Fahrenheit) in Average Annual Temperature, 2080s, High end projection (7)
9.7 9.7
9.5 9.5
9.3 9.3
8.9 8.9
Change (Fahrenheit) in Average Summer Temperature, 2050s, Low end projection (9)
5.6 5.6
5.4 5.4
5.3 5.3
5.0 5.0
Change (Fahrenheit) in Average Summer Temperature, 2050s, High end projection (10)
7.4 7.4
7.1 7.1
6.9 6.9
6.7 6.7
Change (Fahrenheit) in Average Summer Temperature, 2080s, Low end projection (12)
6.9 6.9
6.7 6.7
6.5 6.5
6.2 6.2
Change (Fahrenheit) in Average Summer Temperature, 2080s, High end projection (13)
10.7 10.7
10.4 10.4
10.0 10.0
9.6 9.6
Change (Fahrenheit) in Average Winter Temperature, 2050s, Low end projection (15)
4.2 4.2
4 4
3.9 3.9
3.8 3.8
Change (Fahrenheit) in Average Winter Temperature, 2050s, High end projection (16)
5.3 5.3
5.1 5.1
4.9 4.9
4.8 4.8
Change (Fahrenheit) in Average Winter Temperature, 2080s, Low end projection (18)
5.5 5.5
5.2 5.2
5.1 5.1
4.9 4.9
Change (Fahrenheit) in Average Winter Temperature, 2080s, High end projection (19)
9.1 9.1
8.6 8.6
8.5 8.5
8.2 8.2
Change in Growing Degree-Day, 2050s, Low end projection (21)
163 - 403 163 - 403
404 - 643 404 - 643
644 - 883 644 - 883
884 - 1123 884 - 1123
1124 - 1366 1124 - 1366
Change in Growing Degree-Day, 2050s, High end projection (22)
163 - 403 163 - 403
404 - 643 404 - 643
644 - 883 644 - 883
884 - 1123 884 - 1123
1124 - 1366 1124 - 1366
Change in Growing Degree-Day, 2080s, Low end projection (24)
235 - 662 235 - 662
663 - 1089 663 - 1089
1090 - 1516 1090 - 1516
1517 - 1943 1517 - 1943
1944 - 2371 1944 - 2371
Change in Growing Degree-Day, 2080s, High end projection (25)
235 - 662 235 - 662
663 - 1089 663 - 1089
1090 - 1516 1090 - 1516
1517 - 1943 1517 - 1943
1944 - 2371 1944 - 2371
Average Annual Temperature (Fahrenheit), Historical (27)
26.4 - 37.2 26.4 - 37.2
37.3 - 42.0 37.3 - 42.0
42.1 - 46.9 42.1 - 46.9
47.0 - 51.5 47.0 - 51.5
Average Summer Temperature (Fahrenheit), Historical (28)
42.5 - 51.4 42.5 - 51.4
51.5 - 54.7 51.5 - 54.7
54.8 - 58.4 54.8 - 58.4
58.5 - 63.1 58.5 - 63.1
Average Winter Temperature (Fahrenheit), Historical (29)
10.9 - 23.7 10.9 - 23.7
23.8 - 30.1 23.8 - 30.1
30.2 - 36.0 30.2 - 36.0
36.1 - 40.8 36.1 - 40.8
Growing Degree-Days, Historical (30)
21 - 233 21 - 233
234 - 372 234 - 372
373 - 592 373 - 592
593 - 854 593 - 854
855 - 1037 855 - 1037
Stream Temperature 2040 (Mean August Temp. in Celsius) (32)
< 14.5 C (Optimal range for salmon spawning, rearing, and migrating) < 14.5 C (Optimal range for salmon spawning, rearing, and migrating)
15.5 - 19.5 C (Range for increased disease risk in adult salmon) 15.5 - 19.5 C (Range for increased disease risk in adult salmon)
20.5 - 21.5 C (Threshold for adult salmon mortality) 20.5 - 21.5 C (Threshold for adult salmon mortality)
> 21.5 C (Threshold for juvenile salmon mortality) > 21.5 C (Threshold for juvenile salmon mortality)
Stream Temperature 2080 (Mean August Temp. in Celsius) (33)
< 14.5 C (Optimal range for salmon spawning, rearing, and migrating) < 14.5 C (Optimal range for salmon spawning, rearing, and migrating)
15.5 - 19.5 C (Range for increased disease risk in adult salmon) 15.5 - 19.5 C (Range for increased disease risk in adult salmon)
20.5 - 21.5 C (Threshold for adult salmon mortality) 20.5 - 21.5 C (Threshold for adult salmon mortality)
> 21.5 C (Threshold for juvenile salmon mortality) > 21.5 C (Threshold for juvenile salmon mortality)
Snohomish County Fire Districts (35)
Potential fire hazard (36)
Current Risk Assessment (37)
Extreme fire hazard Extreme fire hazard
High fire hazard High fire hazard
Moderate fire hazard Moderate fire hazard
Low fire hazard Low fire hazard
Percent Change in Monthly Annual Precipitation, 2050s, Low end projection (40)
5 5
4 4
3 3
2 2
Percent Change in Monthly Annual Precipitation, 2050s, High end projection (41)
6 6
4 4
3 3
2 2
Percent Change in Monthly Annual Precipitation, 2080s, Low end projection (43)
8 8
6 6
5 5
4 4
Percent Change in Monthly Annual Precipitation, 2080s, High end projection (44)
9 9
7 7
5 5
4 4
Percent Change in Monthly Dry Season Precipitation 2050s, Low end projection (46)
-5 -5
-7 -7
-8 -8
-9 -9
Percent Change in Monthly Dry Season Precipitation 2050s, High end projection (47)
-4 -4
-7 -7
-8 -8
-9 -9
Percent Change in Monthly Dry Season Precipitation 2080s, Low end projection (49)
-4 -4
-6 -6
-8 -8
-10 -10
Percent Change in Monthly Dry Season Precipitation 2080s, High end projection (50)
-6 -6
-9 -9
-12 -12
-14 -14
Percent Change in Monthly Wet Season Precipitation 2050s, Low end projection (52)
8 8
7 7
Percent Change in Monthly Wet Season Precipitation 2050s, High end projection (53)
10 10
9 9
8 8
Percent Change in Monthly Wet Season Precipitation 2080s, Low end projection (55)
12 12
11 11
Percent Change in Monthly Wet Season Precipitation 2080s, High end projection (56)
14 14
13 13
Average Annual Total Precipitation (millimeters), Historical (58)
908 - 1406 908 - 1406
1407 - 2008 1407 - 2008
2009 - 2529 2009 - 2529
2530 - 3386 2530 - 3386
Average Summer Total Precipitation (millimeters), Historical (59)
259 - 421 259 - 421
422 - 550 422 - 550
551 - 652 551 - 652
653 - 844 653 - 844
Average Winter Total Precipitation (millimeters), Historical (60)
612 - 962 612 - 962
963 - 1495 963 - 1495
1496 - 1883 1496 - 1883
1884 - 2577 1884 - 2577
8th Level HUC Water Availability 2050s, Low end projection (62)
Rain dominant Rain dominant
Mixed rain and snow Mixed rain and snow
Snow dominant Snow dominant
8th Level HUC Water Availability 2050s, High end projection (63)
Rain dominant Rain dominant
Mixed rain and snow Mixed rain and snow
Snow dominant Snow dominant
8th Level HUC Water Availability 2080s, Low end projection (64)
Rain dominant Rain dominant
Mixed rain and snow Mixed rain and snow
Snow dominant Snow dominant
8th Level HUC Water Availability 2080s, High end projection (65)
Rain dominant Rain dominant
Mixed rain and snow Mixed rain and snow
Snow dominant Snow dominant
Inundation Area (68)
2040s 2040s
Historical 10yr Flood (69)
Historical Historical
Inundation Depth 10yr Flood 2040, Low end projection (70)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (72)
2040s 2040s
Historical 10yr Flood (73)
Historical Historical
Inundation Depth 10yr Flood 2040, High end projection (74)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (76)
2080s 2080s
Historical 10yr Flood (77)
Historical Historical
Inundation Depth 10yr Flood 2080, Low end projection (78)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (80)
2080s 2080s
Historical 10yr Flood (81)
Historical Historical
Inundation Depth 10yr Flood 2080, High end projection (82)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (84)
2040s 2040s
Historical 100yr flood (85)
Historical Historical
Inundation Depth 100yr Flood 2040, Low end projection (86)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (88)
2040s 2040s
Historical 100yr flood (89)
Historical Historical
Inundation Depth 100yr Flood 2040, High end projection (90)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (92)
2080s 2080s
Historical 100yr flood (93)
Historical Historical
Inundation Depth 100yr Flood 2080, Low end projection (94)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Inundation Area (96)
2080s 2080s
Historical 100yr flood (97)
Historical Historical
Inundation Depth 100yr Flood 2080, High end projection (98)
< 2 ft < 2 ft
2 - 4 ft 2 - 4 ft
4 - 6 ft 4 - 6 ft
6 - 8 ft 6 - 8 ft
8 - 12 ft 8 - 12 ft
12 - 16 ft 12 - 16 ft
16 - 20 ft 16 - 20 ft
> 20 ft > 20 ft
Average 10yr RI 2040s, Low end projection (101)
5 - year return interval 5 - year return interval
Average 10yr RI 2040s, High end projection (102)
4 - year return interval 4 - year return interval
5 - year return interval 5 - year return interval
Average 10yr RI 2080s, Low end projection (104)
3 - year return interval 3 - year return interval
4 - year return interval 4 - year return interval
Average 10yr RI 2080s, High end projection (105)
2 - year return interval 2 - year return interval
3 - year return interval 3 - year return interval
Average 100yr RI 2040s, Low end projection (107)
27 - year return interval 27 - year return interval
40 - year return interval 40 - year return interval
43 - year return interval 43 - year return interval
212 - year return interval 212 - year return interval
Average 100yr RI 2040s, High end projection (108)
93 - year return interval 93 - year return interval
133 - year return interval 133 - year return interval
204 - year return interval 204 - year return interval
291 - year return interval 291 - year return interval
Average 100yr RI 2080s, Low end projection (110)
40 - year return interval 40 - year return interval
73 - year return interval 73 - year return interval
102 - year return interval 102 - year return interval
587 - year return interval 587 - year return interval
Average 100yr RI 2080s, High end projection (111)
14 - year return interval 14 - year return interval
17 - year return interval 17 - year return interval
35 - year return interval 35 - year return interval
147 - year return interval 147 - year return interval
Watershed (112)
Sea Level Rise 1 ft., Low-Lying Areas, 2080s, Low end projection (114)
Sea Level Rise 1 ft., 2080s, Low end projection (115)
High : 4.4 - Low : 0 High : 4.4 - Low : 0
Sea Level Rise 2 ft., Low-Lying Areas, 2080s, High end projection (116)
Sea Level Rise 2 ft., 2080s, High end projection (117)
High : 4.7 - Low : 0 High : 4.7 - Low : 0
Other Landslide Potential Areas (120)
DNR Landslide Hazard Areas (121)