Observed Sea Level Pressure Differences
Time is given in UTC
Oregon and Washington
24 June 2026
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
00| 156 |168 156 1.2|162 156 .6| 156 |143 156 -1.3|156 147 .9
01| 154 |168 154 1.4|161 154 .7| 153 |141 153 -1.2|154 145 .9
02| 156 |170 156 1.4|163 156 .7| 152 |145 152 -.7|156 144 1.2
03| 157 |172 157 1.5|165 157 .8| 153 |147 153 -.6|157 147 1.0
04| 161 |176 161 1.5|171 161 1.0| 154 |151 154 -.3|161 150 1.1
05| 161 |176 161 1.5|172 161 1.1| 156 |154 156 -.2|161 151 1.0
06| 161 |175 161 1.4|173 161 1.2| 153 |155 153 .2|161 152 .9
07| 160 |176 160 1.6|173 160 1.3| 152 |157 152 .5|160 150 1.0
08| 161 |176 161 1.5|175 161 1.4| 158 |158 158 .0|161 149 1.2
09| 163 |177 163 1.4|175 163 1.2| 159 |160 159 .1|163 150 1.3
10| 163 | 163 |176 163 1.3| 159 | 159 |163 150 1.3
11| 166 |175 166 .9|174 166 .8| 157 |163 157 .6|166 150 1.6
12| 170 |175 170 .5|175 170 .5| 158 |164 158 .6|170 152 1.8
13| 171 |176 171 .5|178 171 .7| 159 |167 159 .8|171 151 2.0
14| 171 |179 171 .8|179 171 .8| 161 |168 161 .7|171 148 2.3
15| 172 |181 172 .9|181 172 .9| 163 |166 163 .3|172 145 2.7
16| 169 |180 169 1.1|181 169 1.2| 160 |166 160 .6|169 141 2.8
17| 166 |180 166 1.4|181 166 1.5| 157 |161 157 .4|166 134 3.2
18| 162 |180 162 1.8|179 162 1.7| 155 |157 155 .2|162 129 3.3
19| 159 |179 159 2.0|180 159 2.1| 153 |152 153 -.1|159 123 3.6
20| 154 |178 154 2.4|179 154 2.5| 146 |145 146 -.1|154 119 3.5
21| 148 |177 148 2.9|177 148 2.9| 140 |139 140 -.1|148 116 3.2
22| 144 |174 144 3.0|176 144 3.2| 134 |137 134 .3|144 117 2.7
23| | | | | |
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
25 June 2026
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
00| 134 |176 134 4.2|173 134 3.9| 122 |135 122 1.3|134 108 2.6
01| 131 |170 131 3.9|169 131 3.8| 115 |134 115 1.9|131 100 3.1
02| | | | | |
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
Columbia Gorge
24 June 2026
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
00|168 129 3.9|129 126 .3|126 125 .1|125 130 -.5
01|168 128 4.0|128 126 .2|126 123 .3|123 130 -.7
02|170 131 3.9|131 128 .3|128 126 .2|126 132 -.6
03|172 136 3.6|136 133 .3|133 131 .2|131 132 -.1
04|176 142 3.4|142 | 136 |136 136 .0
05|176 149 2.7|149 147 .2|147 139 .8|139 135 .4
06|175 151 2.4|151 149 .2|149 139 1.0|139 133 .6
07|176 153 2.3|153 152 .1|152 139 1.3|139 133 .6
08|176 155 2.1|155 154 .1|154 140 1.4|140 133 .7
09|177 160 1.7|160 158 .2|158 142 1.6|142 137 .5
10| 160 |160 159 .1|159 142 1.7|142 137 .5
11|175 163 1.2|163 163 .0|163 144 1.9|144 138 .6
12|175 165 1.0|165 165 .0|165 146 1.9|146 144 .2
13|176 169 .7|169 168 .1|168 149 1.9|149 144 .5
14|179 169 1.0|169 168 .1|168 146 2.2|146 143 .3
15|181 167 1.4|167 168 -.1|168 144 2.4|144 144 .0
16|180 166 1.4|166 166 .0|166 138 2.8|138 141 -.3
17|180 161 1.9|161 161 .0|161 131 3.0|131 136 -.5
18|180 158 2.2|158 157 .1|157 124 3.3|124 132 -.8
19|179 153 2.6|153 152 .1|152 117 3.5|117 123 -.6
20|178 145 3.3|145 144 .1|144 109 3.5|109 113 -.4
21|177 140 3.7|140 137 .3|137 104 3.3|104 106 -.2
22|174 137 3.7|137 133 .4|133 103 3.0|103 101 .2
23| | | |
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
25 June 2026
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
00|176 130 4.6|130 127 .3|127 098 2.9|098 091 .7
01|170 131 3.9|131 128 .3|128 096 3.2|096 086 1.0
02| | | |
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
SW British Columbia
24 June 2026
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
00|156 197 -4.1|156 158 -.2|156 138 1.8|156 163 -.7|146 163 -1.7
01|153 196 -4.3|153 155 -.2|153 137 1.6|153 157 -.4|144 157 -1.3
02|152 196 -4.4|152 152 .0|152 136 1.6|152 155 -.3|144 155 -1.1
03|153 196 -4.3|153 151 .2|153 139 1.4|153 153 .0|146 153 -.7
04|154 198 -4.4|154 155 -.1|154 142 1.2|154 158 -.4|150 158 -.8
05|156 198 -4.2|156 155 .1|156 147 .9|156 161 -.5|151 161 -1.0
06|153 198 -4.5|153 158 -.5|153 151 .2|153 164 -1.1|152 164 -1.2
07|152 199 -4.7|152 157 -.5|152 153 -.1|152 165 -1.3|151 165 -1.4
08|158 198 -4.0|158 157 .1|158 154 .4|158 164 -.6|152 164 -1.2
09|159 198 -3.9|159 157 .2|159 156 .3|159 168 -.9|152 168 -1.6
10|159 195 -3.6|159 158 .1|159 157 .2|159 172 -1.3|152 172 -2.0
11|157 193 -3.6|157 159 -.2|157 158 -.1|157 175 -1.8|154 175 -2.1
12|158 193 -3.5|158 159 -.1|158 161 -.3|158 177 -1.9|154 177 -2.3
13|159 192 -3.3|159 157 .2|159 162 -.3|159 179 -2.0|154 179 -2.5
14|161 191 -3.0|161 159 .2|161 162 -.1|161 179 -1.8|153 179 -2.6
15|163 191 -2.8|163 160 .3|163 158 .5|163 175 -1.2|149 175 -2.6
16|160 188 -2.8|160 159 .1|160 154 .6|160 168 -.8|144 168 -2.4
17|157 185 -2.8|157 157 .0|157 149 .8|157 159 -.2|137 159 -2.2
18|155 184 -2.9|155 153 .2|155 143 1.2|155 147 .8|129 147 -1.8
19|153 182 -2.9|153 150 .3|153 138 1.5|153 135 1.8|121 135 -1.4
20|146 179 -3.3|146 145 .1|146 129 1.7|146 125 2.1|113 125 -1.2
21|140 172 -3.2|140 137 .3|140 120 2.0|140 111 2.9|104 111 -.7
22|134 167 -3.3|134 129 .5|134 110 2.4|134 110 2.4|097 110 -1.3
23| 162 | 122 | 107 | 107 | 107
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
25 June 2026
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
00|122 160 -3.8|122 114 .8|122 104 1.8|122 101 2.1|102 101 .1
01|115 153 -3.8|115 108 .7|115 100 1.5|115 093 2.2|101 093 .8
02| 148 | 102 | 102 | 096 | 096
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