COLUMBIA GORGE GRADIENT FORECASTS
WEATHER NORTHWEST
WEATHER OPERATIONS CENTER
300 PM PDT WED APR 24 2024
Data from 18Z Wed 24 Apr NAM Model
Positive gradients are onshore or westerly,
negative gradients are offshore or easterly.
Time Day Date YKM DLS PDX ONP YKM-ONP YKM-PDX DLS-PDX
(GMT) Pressure Pressure Pressure Pressure Gradient Gradient Gradient
============== ======== ======== ======== ======== ======== ======== ========
18Z Wed 24 Apr 1014.3 1017.8 1020.1 1021.0 +6.7 +5.8 +2.3
19Z Wed 24 Apr 1013.1 1016.1 1018.8 1020.3 +7.2 +5.7 +2.7
20Z Wed 24 Apr 1013.5 1016.1 1019.0 1020.0 +6.5 +5.5 +2.9
21Z Wed 24 Apr 1012.6 1015.5 1018.3 1019.7 +7.1 +5.7 +2.8
22Z Wed 24 Apr 1011.9 1015.0 1017.6 1019.4 +7.5 +5.7 +2.6
23Z Wed 24 Apr 1011.7 1015.2 1017.1 1018.8 +7.1 +5.4 +1.9
00Z Thu 25 Apr 1011.9 1015.2 1017.2 1018.9 +7.0 +5.3 +2.0
01Z Thu 25 Apr 1011.9 1015.2 1016.8 1018.5 +6.6 +4.9 +1.6
02Z Thu 25 Apr 1012.4 1015.5 1017.0 1018.6 +6.2 +4.6 +1.5
03Z Thu 25 Apr 1012.7 1015.7 1017.0 1018.4 +5.7 +4.3 +1.3
04Z Thu 25 Apr 1012.7 1015.6 1016.6 1018.0 +5.3 +3.9 +1.0
05Z Thu 25 Apr 1013.2 1015.9 1016.8 1017.9 +4.7 +3.6 +0.9
06Z Thu 25 Apr 1013.3 1015.9 1016.8 1017.7 +4.4 +3.5 +0.9
07Z Thu 25 Apr 1013.3 1015.6 1016.4 1017.1 +3.8 +3.1 +0.8
08Z Thu 25 Apr 1013.1 1015.1 1015.8 1016.5 +3.4 +2.7 +0.7
09Z Thu 25 Apr 1013.1 1014.8 1015.2 1016.0 +2.9 +2.1 +0.4
10Z Thu 25 Apr 1013.4 1014.9 1015.0 1015.8 +2.4 +1.6 +0.1
11Z Thu 25 Apr 1013.1 1014.4 1014.4 1015.2 +2.1 +1.3 +0.0
12Z Thu 25 Apr 1012.9 1014.1 1014.2 1014.9 +2.0 +1.3 +0.1
13Z Thu 25 Apr 1012.6 1014.0 1013.8 1014.7 +2.1 +1.2 -0.2
14Z Thu 25 Apr 1013.4 1014.5 1013.7 1014.9 +1.5 +0.3 -0.8
15Z Thu 25 Apr 1013.2 1014.1 1013.3 1014.6 +1.4 +0.1 -0.8
16Z Thu 25 Apr 1012.2 1013.3 1013.1 1014.1 +1.9 +0.9 -0.2
17Z Thu 25 Apr 1011.6 1012.9 1013.2 1013.8 +2.2 +1.6 +0.3
18Z Thu 25 Apr 1011.1 1012.4 1012.9 1013.2 +2.1 +1.8 +0.5
19Z Thu 25 Apr 1010.4 1012.0 1012.5 1012.8 +2.4 +2.1 +0.5
20Z Thu 25 Apr 1009.4 1011.3 1011.8 1012.2 +2.8 +2.4 +0.5
21Z Thu 25 Apr 1008.6 1010.9 1011.2 1011.6 +3.0 +2.6 +0.3
22Z Thu 25 Apr 1008.3 1010.6 1010.8 1011.3 +3.0 +2.5 +0.2
23Z Thu 25 Apr 1007.6 1010.0 1009.8 1010.8 +3.2 +2.2 -0.2
00Z Fri 26 Apr 1007.5 1009.9 1009.4 1010.7 +3.2 +1.9 -0.5
01Z Fri 26 Apr 1007.2 1009.5 1009.0 1010.6 +3.4 +1.8 -0.5
02Z Fri 26 Apr 1007.1 1009.1 1009.1 1010.8 +3.7 +2.0 +0.0
03Z Fri 26 Apr 1006.9 1008.8 1009.0 1010.9 +4.0 +2.1 +0.2
04Z Fri 26 Apr 1006.9 1008.7 1009.0 1011.0 +4.1 +2.1 +0.3
05Z Fri 26 Apr 1007.3 1009.0 1009.4 1011.4 +4.1 +2.1 +0.4
06Z Fri 26 Apr 1007.4 1009.1 1009.6 1011.8 +4.4 +2.2 +0.5
Time Day Date YKM DLS PDX ONP YKM-ONP YKM-PDX DLS-PDX
(GMT) Pressure Pressure Pressure Pressure Gradient Gradient Gradient
============== ======== ======== ======== ======== ======== ======== ========
07Z Fri 26 Apr 1007.4 1009.2 1009.8 1011.6 +4.2 +2.4 +0.6
08Z Fri 26 Apr 1007.0 1008.9 1009.6 1011.2 +4.2 +2.6 +0.7
09Z Fri 26 Apr 1007.0 1009.0 1009.6 1011.5 +4.5 +2.6 +0.6
10Z Fri 26 Apr 1007.3 1009.5 1009.9 1011.9 +4.6 +2.6 +0.4
11Z Fri 26 Apr 1007.4 1009.6 1009.9 1011.8 +4.4 +2.5 +0.3
12Z Fri 26 Apr 1007.7 1009.9 1010.3 1011.7 +4.0 +2.6 +0.4
13Z Fri 26 Apr 1008.0 1010.2 1010.6 1011.9 +3.9 +2.6 +0.4
14Z Fri 26 Apr 1008.7 1010.9 1011.3 1012.6 +3.9 +2.6 +0.4
15Z Fri 26 Apr 1009.0 1011.0 1011.7 1012.6 +3.6 +2.7 +0.7
16Z Fri 26 Apr 1009.5 1011.0 1011.7 1012.7 +3.2 +2.2 +0.7
17Z Fri 26 Apr 1010.6 1011.4 1012.1 1013.0 +2.4 +1.5 +0.7
18Z Fri 26 Apr 1010.9 1011.4 1012.2 1013.5 +2.6 +1.3 +0.8
19Z Fri 26 Apr 1010.5 1011.5 1012.5 1014.2 +3.7 +2.0 +1.0
20Z Fri 26 Apr 1009.7 1011.3 1012.4 1014.4 +4.7 +2.7 +1.1
21Z Fri 26 Apr 1009.1 1011.2 1012.4 1014.9 +5.8 +3.3 +1.2
22Z Fri 26 Apr 1009.0 1011.3 1012.5 1015.4 +6.4 +3.5 +1.2
23Z Fri 26 Apr 1008.5 1011.2 1012.2 1015.7 +7.2 +3.7 +1.0
00Z Sat 27 Apr 1008.6 1011.4 1012.5 1016.4 +7.8 +3.9 +1.1
01Z Sat 27 Apr 1008.8 1011.8 1013.1 1017.2 +8.4 +4.3 +1.3
02Z Sat 27 Apr 1009.5 1012.7 1014.2 1018.0 +8.5 +4.7 +1.5
03Z Sat 27 Apr 1010.1 1013.6 1015.1 1018.7 +8.6 +5.0 +1.5
04Z Sat 27 Apr 1010.8 1014.3 1015.7 1019.2 +8.4 +4.9 +1.4
05Z Sat 27 Apr 1012.0 1015.0 1016.5 1019.8 +7.8 +4.5 +1.5
06Z Sat 27 Apr 1012.7 1015.4 1017.1 1020.2 +7.5 +4.4 +1.7
07Z Sat 27 Apr 1013.3 1015.9 1017.7 1020.5 +7.2 +4.4 +1.8
08Z Sat 27 Apr 1013.7 1016.1 1017.9 1020.5 +6.8 +4.2 +1.8
09Z Sat 27 Apr 1014.0 1016.3 1018.1 1020.5 +6.5 +4.1 +1.8
10Z Sat 27 Apr 1014.4 1016.5 1018.5 1020.6 +6.2 +4.1 +2.0
11Z Sat 27 Apr 1014.4 1016.6 1018.5 1020.5 +6.1 +4.1 +1.9
12Z Sat 27 Apr 1014.8 1017.2 1019.0 1020.7 +5.9 +4.2 +1.8
13Z Sat 27 Apr 1015.1 1017.7 1019.4 1020.9 +5.8 +4.3 +1.7
14Z Sat 27 Apr 1015.8 1018.5 1020.3 1021.5 +5.7 +4.5 +1.8
15Z Sat 27 Apr 1015.7 1018.8 1020.8 1021.8 +6.1 +5.1 +2.0
16Z Sat 27 Apr 1015.6 1018.9 1021.0 1021.7 +6.1 +5.4 +2.1
17Z Sat 27 Apr 1015.8 1019.3 1021.2 1021.8 +6.0 +5.4 +1.9
18Z Sat 27 Apr 1015.6 1019.2 1021.1 1021.7 +6.1 +5.5 +1.9
19Z Sat 27 Apr 1015.2 1019.0 1020.9 1021.6 +6.4 +5.7 +1.9
20Z Sat 27 Apr 1014.6 1018.3 1020.3 1021.2 +6.6 +5.7 +2.0
21Z Sat 27 Apr 1014.4 1018.0 1020.0 1020.8 +6.4 +5.6 +2.0
22Z Sat 27 Apr 1014.3 1017.8 1019.8 1020.8 +6.5 +5.5 +2.0
23Z Sat 27 Apr 1013.7 1017.1 1019.3 1020.6 +6.9 +5.6 +2.2
00Z Sun 28 Apr 1013.6 1017.3 1019.7 1020.2 +6.6 +6.1 +2.4
01Z Sun 28 Apr 1013.7 1017.6 1019.7 1020.2 +6.5 +6.0 +2.1
02Z Sun 28 Apr 1014.1 1018.2 1019.7 1020.3 +6.2 +5.6 +1.5
03Z Sun 28 Apr 1014.5 1018.7 1019.6 1020.2 +5.7 +5.1 +0.9
04Z Sun 28 Apr 1014.9 1018.9 1019.7 1020.1 +5.2 +4.8 +0.8
05Z Sun 28 Apr 1015.7 1019.4 1020.1 1020.3 +4.6 +4.4 +0.7
06Z Sun 28 Apr 1016.2 1019.5 1019.9 1020.1 +3.9 +3.7 +0.4
$$