Regional Weather Roundup
Issued by NWS

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870
ASUS46 KSEW 210510
RWRWA

WASHINGTON REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE SEATTLE WA
1000 PM PDT THU AUG 20 2026

NOTE:"FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

WAZ507-509-555>559-210600-
SEATTLE, TACOMA, EVERETT, AND VICINITY

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
EVERETT        CLEAR     68  57  68 N3        29.97R TC  20
BOEING FIELD   CLEAR     73  57  57 CALM      29.93R TC  23
RENTON         CLEAR     74  59  59 NW5       29.93R TC  23
SEATAC AIRPORT CLEAR     75  56  51 N9        29.95R TC  24
JBLM-MCCHORD   CLEAR     69  55  60 CALM      29.93R TC  21
PUYALLUP       PTCLDY    68  57  68 CALM      29.96R TC  20
BREMERTON      CLEAR     71  56  58 NE6       29.96R TC  22
JBLM-FT LEWIS  CLEAR     73  53  49 CALM      29.91R TC  23
TACOMA NARROWS CLEAR     74  55  51 N6        29.94R TC  23
$$

WAZ001-503-506-510-514-515-210600-
NORTH INTERIOR

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BELLINGHAM     CLEAR     62  58  86 CALM      29.94R TC  17
FRIDAY HARBOR  CLEAR     62  56  80 CALM      29.96R TC  17
EASTSOUND      CLEAR     64  57  77 CALM      29.95R TC  18
PORT ANGELES   CLEAR     60  54  80 CALM      29.97R TC  16
EDIZ HOOK      CLEAR     57  55  94 W13       29.96S TC  14
PORT TOWNSEND  CLEAR     59  55  88 CALM      29.95R TC  15
NAS WHIDBEY    NOT AVBL
ARLINGTON      CLEAR     68  60  75 CALM      29.96R TC  20
BURLINGTON     CLEAR     61  59  94 CALM      29.95R TC  16
$$

WAZ020-022-039-040-504-511-512-210600-
SOUTHWEST INTERIOR

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SHELTON        CLEAR     70  59  68 W5        29.93R TC  21
OLYMPIA        CLEAR     75  55  49 N6        29.94R TC  24
CHEHALIS       CLEAR     73  63  68 CALM      29.94R TC  23
KELSO          CLEAR     68  59  73 NW6       29.95R TC  20
VANCOUVER      CLEAR     80  60  50 VRB5      29.91R TC  27
SCAPPOOSE, OR  CLEAR     74  60  61 N5        29.89R TC  23
PORTLAND, OR   CLEAR     78  61  55 NW7       29.90R TC  26
$$

WAZ021-516-517-210600-
WASHINGTON COAST

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
FORKS          CLEAR     54  52  93 CALM      29.97R TC  12
HOQUIAM        CLOUDY    57  56  96 W6        29.98R FOG     TC  14
ASTORIA, OR    CLOUDY    58  56  93 W5        29.97S FOG     TC  14
$$

WAZ019-023-024-040-567>569-210600-
CASCADE MOUNTAINS AND COLUMBIA GORGE

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
STAMPEDE PASS  CLEAR     65  51  60 MISG      30.12S TC  18
TROUTDALE, OR  CLEAR     76  59  55 CALM      29.89R TC  24
HOOD RIVER, OR CLEAR     72  52  49 SE5       29.90R TC  22
THE DALLES, OR PTCLDY    86  56  35 NW14      29.84R TC  30
$$

WAZ026-027-041>044-520-521-210600-
EAST SLOPES

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
OMAK           CLEAR     77  41  27 W7        29.92R TC  25
WENATCHEE      CLEAR     84  52  33 E6        29.91R TC  29
ELLENSBURG     CLEAR     76  48  37 CALM      29.96R TC  24
YAKIMA         CLEAR     73  52  47 W7        29.91R TC  23
SUNNYSIDE ARPT   N/A     72  53  51 MISG        N/A  TC  22
YAKIMA TC      FAIR      80  42  26 W3        29.88R TC  27
$$

WAZ028-034-035-210600-
COLUMBIA BASIN

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
EPHRATA        CLEAR     72  46  39 CALM      29.91R TC  22
MOSES LAKE     CLEAR     82  50  32 CALM      29.91R TC  28
PASCO          PTCLDY    70  60  70 N6        29.86R TC  21
RICHLAND ARPT  PTCLDY    78  53  42 CALM      29.86R TC  25
HERMISTON, OR  PTCLDY    74  45  35 S5        29.86R TC  23
$$

WAZ036>038-210600-
NORTHEAST WASHINGTON

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SPOKANE GEIGER PTCLDY    75  35  23 W5        29.98S TC  24
SPOKANE FELTS  CLEAR     73  41  31 CALM      29.97R TC  23
FAIRCHILD AFB  CLEAR     76  34  22 W6        29.99R TC  24
COEURDALENE,ID CLEAR     75  45  34 E3        30.00R TC  24
DEER PARK      CLEAR     63  34  33 CALM      29.98R TC  17
$$

WAZ029>033-210600-
SOUTHEAST WASHINGTON

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PULLMAN        PTCLDY    69  35  28 CALM      30.02S HAZE    TC  21
LEWISTON, ID   PTCLDY    82  37  20 S7        29.92R TC  28
WALLA WALLA    PTCLDY    77  44  30 E9        29.90S HAZE    TC  25
PENDLETON, OR  PTCLDY    79  39  23 SE7       29.92R TC  26
$$