Regional Weather Roundup
Issued by NWS

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580
ASUS46 KSEW 182020
RWRWA

WASHINGTON REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE SEATTLE WA
100 PM PDT TUE AUG 18 2026

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

WAZ507-509-555>559-182100-
SEATTLE, TACOMA, EVERETT, AND VICINITY

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
EVERETT        SUNNY     71  57  61 SW12      30.13F TC  22
BOEING FIELD   SUNNY     72  57  59 CALM      30.11F TC  22
RENTON         SUNNY     72  57  59 SW5       30.11F TC  22
SEATAC AIRPORT MOSUNNY   68  55  63 S9        30.13F TC  20
JBLM-MCCHORD   SUNNY     73  57  56 N6        30.11F TC  23
PUYALLUP       SUNNY     77  57  50 CALM      30.12F TC  25
BREMERTON      SUNNY     73  59  61 VRB6      30.12F TC  23
JBLM-FT LEWIS  SUNNY     73  56  55 W5        30.09F TC  23
TACOMA NARROWS SUNNY     67  56  67 VRB5      30.12F TC  19
$$

WAZ001-503-506-510-514-515-182100-
NORTH INTERIOR

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BELLINGHAM     SUNNY     70  57  63 SW5       30.10F TC  21
FRIDAY HARBOR  SUNNY     63  54  72 SE5       30.13F TC  17
EASTSOUND      SUNNY     68  57  68 N5        30.11S TC  20
PORT ANGELES   SUNNY     65  54  67 W6        30.12S TC  18
EDIZ HOOK      SUNNY     59  54  84 W10       30.12S TC  15
PORT TOWNSEND  SUNNY     72  57  60 SE5       30.10S TC  22
NAS WHIDBEY    MOSUNNY   57  52  83 NW6       30.13F TC  14
ARLINGTON      SUNNY     77  59  53 VRB6      30.11F TC  25
BURLINGTON     NOT AVBL
$$

WAZ020-022-039-040-504-511-512-182100-
SOUTHWEST INTERIOR

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SHELTON        MOSUNNY   67  56  67 SW13      30.11F TC  19
OLYMPIA        SUNNY     72  56  57 S8        30.12F TC  22
CHEHALIS       SUNNY     73  59  60 SW8       30.13F TC  23
KELSO          CLOUDY    68  58  70 VRB5      30.15F TC  20
VANCOUVER      SUNNY     74  58  57 MISG      30.12F TC  23
SCAPPOOSE, OR  SUNNY     73  58  59 N6        30.11F TC  23
PORTLAND, OR   MOSUNNY   73  58  59 N5        30.11F TC  23
$$

WAZ021-516-517-182100-
WASHINGTON COAST

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
FORKS          CLOUDY    62  56  80 SW9G20    30.14S TC  17
HOQUIAM        CLOUDY    63  56  78 W8        30.16F TC  17
ASTORIA, OR    CLOUDY    64  56  75 W6        30.16S HAZE    TC  18
$$

WAZ019-023-024-040-567>569-182100-
CASCADE MOUNTAINS AND COLUMBIA GORGE

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
STAMPEDE PASS  SUNNY     70  51  51 MISG      30.19F TC  21
TROUTDALE, OR  SUNNY     76  58  53 MISG      30.10F TC  24
HOOD RIVER, OR SUNNY     82  52  34 NW6       30.02F TC  28
THE DALLES, OR SUNNY     86  56  35 NW20G26   29.97F TC  30
$$

WAZ026-027-041>044-520-521-182100-
EAST SLOPES

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
OMAK           SUNNY     91  43  18 N9        29.95F TC  33
WENATCHEE      SUNNY     89  39  17 VRB5      29.96F TC  32
ELLENSBURG     SUNNY     87  45  23 NW18G26   30.00F TC  31
YAKIMA         SUNNY     91  39  16 VRB3      29.98F TC  33
SUNNYSIDE ARPT SUNNY     88  59  37 SE3       29.96F TC  31
YAKIMA TC      NOT AVBL
$$

WAZ028-034-035-182100-
COLUMBIA BASIN

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
EPHRATA        SUNNY     90  47  22 S10G17    29.96F TC  32
MOSES LAKE     SUNNY     88  46  23 S6        29.97F HAZE    TC  31
PASCO          SUNNY     89  50  26 CALM      29.96F TC  32
RICHLAND ARPT  SUNNY     93  51  23 S5        29.95F HX  90  TC  34
HERMISTON, OR  SUNNY     90  46  21 W13       29.98F TC  32
$$

WAZ036>038-182100-
NORTHEAST WASHINGTON

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SPOKANE GEIGER MOSUNNY   83  44  25 SW12G21   30.03F TC  28
SPOKANE FELTS  SUNNY     86  46  24 SW7G16    30.01F TC  30
FAIRCHILD AFB  SUNNY     85  43  22 SW10      30.03F TC  30
COEURDALENE,ID SUNNY     86  47  25 W13       30.03F TC  30
DEER PARK      SUNNY     85  46  25 MISG      30.01F TC  29
$$

WAZ029>033-182100-
SOUTHEAST WASHINGTON

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PULLMAN        SUNNY     86  36  16 W14G20    30.07F TC  30
LEWISTON, ID   SUNNY     90  46  21 VRB6      29.97F TC  32
WALLA WALLA    SUNNY     88  41  19 SW13G25   30.01F TC  31
PENDLETON, OR  SUNNY     88  44  21 W12G22    30.02F TC  31
$$