Observed Sea Level Pressure Differences
Time is given in UTC
Oregon and Washington
24 March 2026
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
00|186 183 .3|160 183 -2.3|170 183 -1.3|170 186 -1.6|176 186 -1.0|183 156 2.7
01|189 173 1.6|159 173 -1.4|167 173 -.6|170 178 -.8|168 178 -1.0|173 155 1.8
02|192 170 2.2|158 170 -1.2|163 170 -.7|159 176 -1.7|166 176 -1.0|170 155 1.5
03|192 168 2.4|153 168 -1.5|153 168 -1.5|159 170 -1.1|162 170 -.8|168 154 1.4
04|182 163 1.9|150 163 -1.3|151 163 -1.2|148 162 -1.4|160 162 -.2|163 153 1.0
05|175 158 1.7|146 158 -1.2|144 158 -1.4|145 156 -1.1|153 156 -.3|158 149 .9
06|169 149 2.0|145 149 -.4|149 149 .0|140 152 -1.2|148 152 -.4|149 143 .6
07|169 151 1.8|149 151 -.2|152 151 .1|137 152 -1.5|149 152 -.3|151 142 .9
08|162 154 .8|143 154 -1.1|146 154 -.8|124 150 -2.6|147 150 -.3|154 135 1.9
09|160 151 .9|129 151 -2.2|132 151 -1.9|120 139 -1.9|151 139 1.2|151 132 1.9
10|165 141 2.4|120 141 -2.1|125 141 -1.6|102 136 -3.4|131 136 -.5|141 128 1.3
11|153 131 2.2|104 131 -2.7|104 131 -2.7|089 119 -3.0|121 119 .2|131 122 .9
12|150 114 3.6|095 114 -1.9|090 114 -2.4|075 100 -2.5|104 100 .4|114 129 -1.5
13|152 100 5.2|081 100 -1.9|086 100 -1.4|061 095 -3.4|088 095 -.7|100 117 -1.7
14|143 096 4.7|076 096 -2.0|074 096 -2.2|061 091 -3.0|084 091 -.7|096 109 -1.3
15|147 081 6.6|070 081 -1.1|065 081 -1.6|032 069 -3.7|083 069 1.4|081 099 -1.8
16|143 081 6.2|073 081 -.8|066 081 -1.5|021 065 -4.4|083 065 1.8|081 089 -.8
17|157 083 7.4|073 083 -1.0|066 083 -1.7|017 055 -3.8|078 055 2.3|083 082 .1
18|160 086 7.4|080 086 -.6|068 086 -1.8|018 040 -2.2|080 040 4.0|086 079 .7
19|161 087 7.4|088 087 .1|074 087 -1.3|033 037 -.4|081 037 4.4|087 071 1.6
20|161 087 7.4|088 087 .1|074 087 -1.3|033 037 -.4|081 037 4.4|087 071 1.6
21|167 |103 |089 |048 035 1.3|087 035 5.2| 079
HR OTH-SEA AST-SEA HQM-SEA UIL-BLI OLM-BLI SEA-YKM
Columbia Gorge
24 March 2026
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
00|160 168 -.8|168 167 .1|167 156 1.1|156 158 -.2
01|159 162 -.3|162 161 .1|161 153 .8|153 157 -.4
02|158 165 -.7|165 162 .3|162 154 .8|154 155 -.1
03|153 163 -1.0|163 165 -.2|165 158 .7|158 156 .2
04|150 161 -1.1|161 159 .2|159 156 .3|156 157 -.1
05|146 158 -1.2|158 157 .1|157 154 .3|154 153 .1
06|145 157 -1.2|157 156 .1|156 148 .8|148 152 -.4
07|149 147 .2|147 152 -.5|152 149 .3|149 147 .2
08|143 151 -.8|151 151 .0|151 141 1.0|141 141 .0
09|129 147 -1.8|147 145 .2|145 145 .0|145 138 .7
10|120 137 -1.7|137 139 -.2|139 138 .1|138 138 .0
11|104 133 -2.9|133 134 -.1|134 131 .3|131 141 -1.0
12|095 127 -3.2|127 128 -.1|128 132 -.4|132 134 -.2
13|081 125 -4.4|125 128 -.3|128 127 .1|127 129 -.2
14|076 114 -3.8|114 118 -.4|118 128 -1.0|128 120 .8
15|070 107 -3.7|107 108 -.1|108 124 -1.6|124 118 .6
16|073 103 -3.0|103 102 .1|102 121 -1.9|121 117 .4
17|073 103 -3.0|103 107 -.4|107 109 -.2|109 114 -.5
18|080 109 -2.9|109 112 -.3|112 105 .7|105 114 -.9
19|088 124 -3.6|124 123 .1|123 096 2.7|096 094 .2
20|088 124 -3.6|124 123 .1|123 096 2.7|096 094 .2
21|103 133 -3.0|133 | 106 |106 084 2.2
HR AST-PDX PDX-TTD TTD-DLS DLS-HRI
SW British Columbia
24 March 2026
HR BLI-YZT BLI-YQQ BLI-YHE BLI-YKA OMK-YKA
00|186 197 -1.1|186 189 -.3|186 169 1.7|186 146 4.0|152 146 .6
01|178 190 -1.2|178 181 -.3|178 166 1.2|178 142 3.6|148 142 .6
02|176 179 -.3|176 174 .2|176 165 1.1|176 143 3.3|148 143 .5
03|170 172 -.2|170 167 .3|170 169 .1|170 145 2.5|146 145 .1
04|162 167 -.5|162 161 .1|162 164 -.2|162 144 1.8|143 144 -.1
05|156 158 -.2|156 159 -.3|156 155 .1|156 134 2.2|134 134 .0
06|152 151 .1|152 150 .2|152 152 .0|152 130 2.2|132 130 .2
07|152 140 1.2|152 141 1.1|152 150 .2|152 132 2.0|128 132 -.4
08|150 130 2.0|150 132 1.8|150 149 .1|150 131 1.9|123 131 -.8
09|139 113 2.6|139 133 .6|139 147 -.8|139 128 1.1|125 128 -.3
10|136 108 2.8|136 119 1.7|136 135 .1|136 128 .8|118 128 -1.0
11|119 087 3.2|119 107 1.2|119 135 -1.6|119 123 -.4|114 123 -.9
12|100 072 2.8|100 102 -.2|100 127 -2.7|100 118 -1.8|116 118 -.2
13|095 059 3.6|095 091 .4|095 112 -1.7|095 109 -1.4|111 109 .2
14|091 042 4.9|091 083 .8|091 099 -.8|091 102 -1.1|107 102 .5
15|069 029 4.0|069 059 1.0|069 092 -2.3|069 095 -2.6|111 095 1.6
16|065 010 5.5|065 041 2.4|065 085 -2.0|065 087 -2.2|109 087 2.2
17|055 986 6.9|055 029 2.6|055 |055 074 -1.9|106 074 3.2
18|040 968 7.2|040 008 3.2|040 |040 070 -3.0|097 070 2.7
19|037 942 9.5|037 995 4.2|037 072 -3.5|037 056 -1.9|096 056 4.0
20|037 915 12.2|037 978 5.9|037 060 -2.3|037 045 -.8|096 045 5.1
21|035 900 13.5|035 966 6.9|035 054 -1.9|035 029 .6|084 029 5.5
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