Observed Sea Level Pressure Differences
Time is given in UTC
Oregon and Washington
19 October 2026
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
04|165 156 .9|134 156 -2.2|149 156 -.7|142 |148 |156 158 -.2
05|166 |132 | | |145 |
06|165 148 1.7|128 148 -2.0|136 148 -1.2|134 149 -1.5|143 149 -.6|148 151 -.3
07|166 142 2.4|131 142 -1.1|134 142 -.8|132 145 -1.3|138 145 -.7|142 147 -.5
08|167 143 2.4|129 143 -1.4|137 143 -.6|133 140 -.7|135 140 -.5|143 144 -.1
09|164 141 2.3|134 141 -.7|137 141 -.4|130 142 -1.2|139 142 -.3|141 143 -.2
10|159 144 1.5|132 144 -1.2|135 144 -.9|132 139 -.7|139 139 .0|144 139 .5
11|158 147 1.1|133 147 -1.4|136 147 -1.1|131 |138 |147 140 .7
12|158 144 1.4|135 144 -.9|137 144 -.7|131 147 -1.6|137 147 -1.0|144 142 .2
13|159 149 1.0|138 149 -1.1|140 149 -.9|136 148 -1.2|144 148 -.4|149 147 .2
14| | | | | |
15|157 156 .1|143 156 -1.3|149 156 -.7|144 157 -1.3|152 157 -.5|156 152 .4
16|153 160 -.7|147 160 -1.3|154 160 -.6|150 160 -1.0|155 160 -.5|160 156 .4
17| | | | | |
18| | | | | |
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
Columbia Gorge
19 October 2026
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
04|134 143 -.9|143 141 .2|141 147 -.6|147 145 .2
05|132 | | |
06|128 137 -.9|137 137 .0|137 146 -.9|146 142 .4
07|131 137 -.6|137 137 .0|137 140 -.3|140 138 .2
08|129 139 -1.0|139 139 .0|139 140 -.1|140 137 .3
09|134 142 -.8|142 144 -.2|144 140 .4|140 134 .6
10|132 134 -.2|134 141 -.7|141 138 .3|138 134 .4
11|133 141 -.8|141 142 -.1|142 141 .1|141 135 .6
12|135 141 -.6|141 141 .0|141 142 -.1|142 143 -.1
13|138 147 -.9|147 147 .0|147 142 .5|142 144 -.2
14| | | |
15|143 153 -1.0|153 154 -.1|154 150 .4|150 150 .0
16|147 154 -.7|154 153 .1|153 153 .0|153 154 -.1
17| | | |
18| | | |
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
SW British Columbia
19 October 2026
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
04| 162 | 163 | 161 | 182 |167 182 -1.5
05| 160 | 158 | 159 | 177 | 177
06|149 155 -.6|149 153 -.4|149 153 -.4|149 174 -2.5|157 174 -1.7
07|145 151 -.6|145 150 -.5|145 150 -.5|145 170 -2.5|151 170 -1.9
08|140 150 -1.0|140 146 -.6|140 149 -.9|140 165 -2.5|151 165 -1.4
09|142 147 -.5|142 143 -.1|142 149 -.7|142 166 -2.4|148 166 -1.8
10|139 142 -.3|139 142 -.3|139 144 -.5|139 162 -2.3|144 162 -1.8
11| 145 | 141 | 142 | 158 |143 158 -1.5
12|147 147 .0|147 141 .6|147 145 .2|147 157 -1.0|146 157 -1.1
13|148 146 .2|148 145 .3|148 149 -.1|148 162 -1.4|156 162 -.6
14| 152 | 146 | 151 | 164 | 164
15|157 152 .5|157 150 .7|157 155 .2|157 170 -1.3|160 170 -1.0
16|160 156 .4|160 156 .4|160 159 .1|160 176 -1.6|160 176 -1.6
17| 159 | 159 | 161 | 176 | 176
18| | | | |
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
Station Identifiers:
AST Astoria OR
BLI Bellingham WA
CAR Cape Arago OR
DLS The Dalles OR
EAT Wenatchee WA
HQM Hoquiam WA
HRI Hermiston OR
HMS Hanford WA
OLM Olympia WA
OMK Omak WA
PDX Portland OR
SEA SeaTac WA
SPB Scapoose OR
SLE Salem OR
TTD Troutdale OR
UIL Quillayute WA
YKM Yakima WA
YHE Hope BC
YKA Kamploops BC
YQQ Comox BC
YZT Port Hardy BC