NBM Guidance for PORTLAND (KPDX)
45.5958N 122.6092W
Elevation 26 ft
HOURLY TO 24 HOURS:
KPDX NBM V5.0 NBH GUIDANCE 10/07/2026 2300 UTC
UTC 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 Time (UTC)
PDT 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 Time (PDT)
TMP 77 75 71 67 65 63 60 59 57 56 55 54 53 53 52 52 56 59 63 67 71 75 77 78 78 Temperature(F)
TSD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 SD of temp(F)
DPT 52 52 51 51 52 52 51 52 52 51 51 51 50 50 50 50 50 50 50 51 51 50 50 51 51 Dew point temp(F)
DSD 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 3 Dew point temp SD(F)
WBG 68 66 63 60 59 57 57 56 55 54 53 53 52 52 51 52 55 57 60 64 67 69 69 69 69 Wet bulb temp(F)
SKY 4 2 5 4 4 4 3 3 3 2 4 4 5 8 12 11 11 8 11 19 18 12 11 11 24 Sky cover(%)
SSD 5 3 6 5 5 5 3 4 4 3 6 6 7 13 18 17 15 13 28 28 30 28 25 26 30 Sky cover SD(%)
WDR 32 32 32 32 32 32 32 32 32 32 32 31 31 31 32 32 33 33 33 32 32 32 32 32 33 Wind dir (deg)
WSP 7 7 6 5 4 3 3 4 4 4 3 3 0 0 0 0 0 2 3 4 5 6 6 7 7 Wind spd (kts)
WSD 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 1 Wind spd SD(kts)
GST 11 10 10 8 5 4 4 4 4 4 4 3 2 2 2 3 3 3 4 5 7 8 9 10 10 Wind gust(kts)
GSD 2 3 3 3 2 2 2 3 2 2 2 2 2 2 2 2 1 1 1 1 2 2 3 3 3 Wind gust SD(kts)
P01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr PoP(%)
P06 0 0 0 0 6-hr PoP(%)
Q01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr QPF (.01")
T01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr tstm prob(%)
PZR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob ZR(%)
PSN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Snow(%)
PPL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Sleet/IP(%)
PRA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob of rain(%)
S01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr snow(1/10in)
SLV 104104104104104105105104104103102101100 99 98 97 95 94 94 93 93 92 92 91 90 Snow level 100s feet MSL
I01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr ice(1/100in)
CIG -88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88 Ceiling height*
MVC 0 0 0 0 0 0 1 2 3 5 8 11 14 16 17 17 16 13 10 7 5 2 1 0 0 Prob cig<=3000ft(%) MVFR
IFC 0 0 0 0 0 0 1 1 3 4 7 10 13 15 16 16 14 13 10 6 3 1 1 0 0 Prob cig<1000ft(%) IFR
LIC 0 0 0 0 0 0 1 1 3 3 6 9 12 14 16 15 14 11 6 4 2 1 0 0 0 Prob cig<500ft(%) LIFR
LCB -88-88-88-88-88-88-88-88280280280280280130180 90-88-88 90 90 70 70170180120 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 0 1 0 1 1 2 2 3 5 6 8 11 13 14 15 15 17 9 3 1 1 1 0 0 1 Prob vsby<=5mi(%) MVFR
IFV 0 1 0 1 1 2 2 3 4 5 7 11 12 14 15 15 15 9 3 0 0 0 0 0 0 Prob vsby<3mi(%) IFR
LIV 0 0 0 1 1 2 2 3 4 4 7 10 11 13 14 15 13 7 2 0 0 0 0 0 0 Prob vsby<1mi(%) LIFR
MHT 13 8 6 5 4 4 4 4 4 4 4 4 4 4 4 4 6 8 11 13 17 19 21 21 18 MixHgt 100s feet AGL
TWD 35 35 34 35 34 34 34 35 34 34 34 34 35 35 35 35 35 34 34 34 33 33 34 34 35 Transport wind dir
TWS 7 8 9 8 7 5 5 5 5 5 5 5 4 4 4 4 4 4 4 5 6 6 8 10 11 Transport wind spd(kts)
SOL 27 7 1 0 0 0 0 0 0 0 0 0 0 0 0 5 19 33 44 59 62 60 53 42 29 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
KPDX NBM V5.0 NBS GUIDANCE 10/07/2026 2300 UTC
DT /OCT 8 /OCT 9 /OCT 10
UTC 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 Time (UTC)
PDT 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 Time (PDT)
FHR 04 07 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 Forecast Hour
TXN 52 79 54 65 48 Max/Min Temp(F)
XND 2 2 1 2 2 SD of max/min temps(F)
TMP 67 60 56 53 52 63 75 78 68 61 56 56 56 58 63 63 57 53 51 49 49 54 60 Temperature(F)
TSD 1 1 1 1 1 1 1 1 2 2 1 2 2 2 3 2 2 2 2 2 2 2 3 SD of temp(F)
DPT 51 51 51 50 50 50 50 51 53 54 53 53 53 53 49 43 43 46 46 47 46 46 43 Dew point temp(F)
DSD 2 2 1 1 1 1 2 3 2 2 2 1 2 3 6 5 3 2 2 2 2 2 3 Dew point temp SD(F)
WBG 60 57 54 52 52 60 69 69 63 57 55 55 55 57 60 56 52 50 49 48 48 53 56 Wet bulb temp(F)
SKY 4 3 2 5 11 11 12 24 50 27 37 76 93 88 69 45 46 65 69 67 58 60 66 Sky cover(%)
SSD 5 3 3 7 17 28 28 30 34 35 30 14 11 10 25 25 29 31 19 23 30 23 27 Sky cover SD(%)
WDR 32 32 32 31 32 33 32 33 33 32 30 21 18 22 28 30 30 26 23 22 20 21 27 Wind dir (deg)
WSP 5 3 4 0 0 3 6 7 5 4 4 3 8 9 11 10 6 3 5 5 5 3 0 Wind spd (kts)
WSD 1 2 2 2 2 2 2 1 1 2 2 3 3 2 3 2 1 2 3 3 2 3 3 Wind spd SD(kts)
GST 8 4 4 2 3 4 8 10 8 5 4 3 9 12 16 16 9 4 7 6 5 4 2 Wind gust(kts)
GSD 3 2 2 2 2 1 2 3 3 3 4 3 4 3 5 4 3 3 5 4 3 3 3 Wind gust SD(kts)
P06 0 0 0 0 0 0 29 42 4 19 35 6-hr PoP(%)
P12 0 0 0 67 17 12-hr PoP(%)
Q06 0 0 0 0 0 0 0 1 1 0 0 6-hr QPF(.01in)
Q12 0 0 0 1 1 12-hr QPF(.01in)
DUR 0 0 0 0 0 Duration of precip(hrs)
T03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 3 3-hr Tstm prob(%)
T06 0 0 0 0 0 0 2 4 1 3 2 6-hr Tstm prob(%)
T12 0 0 0 4 3 12-hr Tstm prob(%)
PZR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob ZR(%)
PSN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Snow(%)
PPL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cond prob Sleet/IP(%)
PRA 0 0 0 0 0 0 0 0 0 0 2 2 28 86 29 23 5 19 41 41 56 56 28 Cond prob of rain(%)
S06 0 0 0 0 0 0 0 0 0 0 0 6-hr snow(1/10in)
SLV 100100100100 97 94 92 90 88 87 81 76 90 84 64 50 41 42 44 44 43 44 48 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG -88-88-88-88-88-88-88-88-88-88-88 17 17 28 41-88-88-88110 37 35 46 90 Ceiling height*
IFC 0 1 4 13 16 10 1 0 0 3 11 25 25 17 1 0 0 0 3 10 13 8 0 Prob cig<1000ft(%) IFR
LCB -88-88280280 90 90 70120160150 90 15 14 14 16150200 30 35 25 30 38 40 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 1 2 5 12 15 3 0 0 0 1 10-99-99-99-99-99-99-99-99-99-99-99-99 Prob vsby<3mi(%) IFR
MHT 5 4 4 4 4 11 19 18 6 6 5 5 11 17 38 49 16 8 5 6 9 28 52 MixHgt 100s feet AGL
TWD 35 34 34 35 35 34 33 35 35 34 32 25 20 28 29 31 31 29 25 24 23 25 32 Transport wind dir
TWS 8 5 5 4 4 4 6 11 10 7 5 3 8 12 11 13 9 6 6 5 5 5 5 Transport wind spd(kts)
SOL 0 0 0 0 5 44 60 29 1 0 0 0 1 5 32 20 2 1 0 0 0 12 54 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
KPDX NBM V5.0 NBE GUIDANCE 10/07/2026 2300 UTC
THU 08 |FRI 09 |SAT 10 |SUN 11 |MON 12 |TUE 13 |WED 14 |THU 15 CLIMO
UTC 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12 Time (UTC)
PDT 05 17 05 17 05 17 05 17 05 17 05 17 05 17 05 Time (PDT)
FHR 13| 25 37| 49 61| 73 85| 97 109|121 133|145 157|169 181 Forecast Hour
TXN 52| 79 54| 65 48| 62 45| 66 44| 68 46| 67 49| 65 46 46 65 Max/Min Temp(F)
XND 2| 2 1| 2 2| 3 3| 3 3| 3 4| 7 4| 5 4 SD of max/min temps(F)
TMP 53| 78 56| 63 49| 61 45| 65 44| 66 47| 66 49| 65 48 Temperature(F)
TSD 1| 1 2| 2 2| 2 2| 3 2| 3 4| 7 3| 5 4 SD of temp(F)
DPT 50| 51 53| 43 47| 41 43| 33 36| 34 39| 41 46| 45 48 Dew point temp(F)
DSD 1| 3 1| 5 2| 2 3| 5 4| 5 5| 6 5| 5 4 Dew point temp SD(F)
WBG 52| 69 55| 56 48| 54 44| 56 42| 57 44| 58 48| 59 48 Wet bulb temp(F)
SKY 5| 24 76| 45 67| 46 18| 7 9| 20 59| 62 69| 45 29 Sky cover(%)
SSD 7| 30 14| 25 23| 22 22| 7 9| 18 26| 32 31| 25 20 Sky cover SD(%)
WDR 31| 33 21| 30 22| 34 1| 1 3| 2 8| 21 17| 32 3 Wind dir (deg)
WSP 0| 7 3| 10 5| 4 6| 7 7| 7 3| 4 4| 4 2 Wind spd (kts)
WSD 2| 1 3| 2 3| 3 2| 2 3| 3 3| 3 3| 3 3 Wind spd SD(kts)
GST 2| 10 3| 16 6| 4 7| 10 8| 9 3| 5 4| 4 2 Wind gust(kts)
GSD 2| 3 3| 4 4| 3 3| 5 4| 4 5| 6 7| 5 4 Wind gust SD(kts)
P12 0| 0 0| 67 17| 44 3| 0 0| 0 1| 21 21| 20 7 21 26 12-hr PoP(%)
Q12 0| 0 0| 1 1| 0 0| 0 0| 0 0| 1 0| 0 0 12-hr QPF(.01in)
Q24 | 0| 2| 0| 0| 0| 1| 0 82 24-hr QPF(.01in)
DUR 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Duration of precip(hrs)
T12 0| 0 0| 4 3| 8 3| 1 0| 0 1| 3 4| 6 2 12-hr Tstm prob(%)
PZR 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob ZR(%)
PSN 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob Snow(%)
PPL 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 Cond prob Sleet/IP(%)
PRA 0| 0 2| 23 41| 28 0| 0 0| 0 14| 18 34| 8 3 Cond prob of rain(%)
S12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 12-hr snow(1/10in)
S24 | 0| 0| 0| 0| 0| 0| 0 24-hr snow(1/10in)
SLV 100| 90 76| 50 44| 49 43| 48 42| 57 72| 72 65| 62 61 Snow level 100s feet MSL
I12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 0| 34 0| 14 0| 26 0| 32 2| 32 2| 2 0| 13 0 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
KPDX NBM V5.0 NBX GUIDANCE 10/07/2026 2300 UTC
FRI 16| SAT 17| SUN 18
UTC 00 12 |00 12 |00 12 Time (UTC)
PDT 17 05 |17 05 |17 05 Time (PDT)
FHR 193 205|217 229|241 253 Forecast Hour
TXN 69 49| 72 51| 70 50 Max/Min Temp(F)
XND 4 4| 4 4| 5 4 SD of max/min temps(F)
TMP 68 49| 70 51| 69 50 Temperature(F)
TSD 4 4| 4 4| 5 4 SD of temp(F)
DPT 45 45| 44 45| 46 48 Dew point temp(F)
DSD 7 6| 7 7| 5 5 Dew point temp SD(F)
WBG 60 47| 62 49| 61 49 Wet bulb temp(F)
SKY 16 27| 41 60| 41 66 Sky cover(%)
SSD 12 16| 25 24| 15 20 Sky cover SD(%)
WDR 2 8| 13 9| 35 5 Wind dir (deg)
WSP 5 5| 5 3| 3 2 Wind spd (kts)
WSD 3 4| 3 3| 3 3 Wind spd SD(kts)
GST 6 6| 6 4| 4 3 Wind gust(kts)
GSD 7 6| 6 5| 5 4 Wind gust SD(kts)
P12 5 4| 7 6| 15 17 12-hr PoP(%)
Q12 0 0| 0 0| 0 3 12-hr QPF(.01in)
Q24 0| 0| 3 24-hr QPF(.01in)
DUR 0 0| 0 0| 0 1 Duration of precip(hrs)
PZR 0 0| 0 0| 0 0 Cond prob ZR(%)
PSN 0 0| 0 0| 0 0 Cond prob Snow(%)
PPL 0 0| 0 0| 0 0 Cond prob Sleet/IP(%)
PRA 3 1| 3 13| 15 23 Cond prob of rain(%)
S12 0 0| 0 0| 0 0 12-hr snow(1/10in)
S24 0| 0| 0 24-hr snow(1/10in)
SLV 69 72| 75 75| 73 67 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 11 11| 20 10| 20 11 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
KPDX NBM V5.0 NBP GUIDANCE 10/07/2026 1900 UTC
THU 08| FRI 09| SAT 10| SUN 11| MON 12| TUE 13| WED 14| THU 15| FRI 16|
UTC 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 12| 00 Time (UTC)
PDT 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 05| 17 Time (PDT)
FHR 17| 29 41| 53 65| 77 89|101 113|125 137|149 161|173 185|197 209|221 Forecast Hour
TXNMN 53| 79 54| 65 48| 62 45| 66 44| 68 46| 67 49| 65 46| 69 49| 69 Mean min/max temp(F)
TXNSD 2| 2 1| 2 2| 3 3| 3 3| 3 4| 7 4| 5 4| 4 4| 4 SD min/max temp(F)
TXNP1 50| 77 53| 63 45| 59 41| 64 40| 64 41| 56 43| 58 42| 65 43| 65 10th percentile min/max temp(F)
TXNP2 51| 78 53| 64 47| 60 43| 65 42| 66 43| 63 47| 61 43| 66 47| 66 25th percentile min/max temp(F)
TXNP5 54| 79 54| 65 49| 63 44| 66 44| 68 47| 68 50| 66 47| 69 49| 69 50th percentile min/max temp(F)
TXNP7 55| 80 55| 67 49| 64 47| 68 46| 70 49| 72 52| 67 50| 72 52| 72 75th percentile min/max temp(F)
TXNP9 56| 80 56| 68 50| 65 48| 70 48| 71 52| 75 53| 70 52| 74 53| 74 90th percentile min/max temp(F)
WSPP1 0| 4 0| 7 0| 0 3| 4 0| 3 0| 0 0| 0 0| 1 0| 0 10th percentile wnd(kts)
WSPP2 0| 6 0| 8 3| 1 4| 5 3| 5 0| 3 0| 2 0| 3 0| 3 25th percentile wnd(kts)
WSPP5 1| 7 3| 9 5| 4 6| 6 6| 6 3| 4 4| 4 3| 5 4| 5 50th percentile wnd(kts)
WSPP7 3| 7 5| 10 6| 5 7| 8 8| 8 6| 7 6| 6 5| 7 7| 7 75th percentile wnd(kts)
WSPP9 4| 8 7| 11 7| 6 7| 9 9| 9 8| 8 9| 8 8| 10 10| 8 90th percentile wnd(kts)
W24P1 | 8 | 10 | 5 | 7 | 6 | 6 | 5 | 5 | 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 8 | 12 | 7 | 9 | 8 | 6 | 6 | 6 | 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 9 | 13 | 7 | 10 | 10 | 8 | 8 | 8 | 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 10 | 14 | 9 | 12 | 13 | 10 | 10 | 11 | 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 11 | 16 | 10 | 14 | 15 | 13 | 13 | 16 | 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 10 | 16 | 7 | 10 | 8 | 7 | 6 | 6 | 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 11 | 18 | 9 | 12 | 12 | 8 | 7 | 7 | 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 14 | 21 | 11 | 16 | 15 | 12 | 11 | 12 | 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 15 | 24 | 13 | 19 | 22 | 18 | 16 | 17 | 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 17 | 26 | 17 | 24 | 24 | 24 | 24 | 27 | 90th percentile 24hr wnd gust exceedance(kts)
Q24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr QPF(1/100in)
Q24P2 | 0| 2| 0| 0| 0| 0| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 7| 0| 0| 0| 0| 0| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 0| 14| 5| 0| 0| 3| 0| 0| 75th percentile 24hr QPF(1/100in)
Q24P9 | 0| 22| 12| 0| 0| 49| 22| 0| 90th percentile 24hr QPF(1/100in)
S24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr snow accum(1/10in)
S24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr snow accum(1/10in)
S24P5 | 0| 0| 0| 0| 0| 0| 0| 0| 50th percentile 24hr snow accum(1/10in)
S24P7 | 0| 0| 0| 0| 0| 0| 0| 0| 75th percentile 24hr snow accum(1/10in)
S24P9 | 0| 0| 0| 0| 0| 0| 0| 0| 90th percentile 24hr snow accum(1/10in)
I24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr ice accum(1/100in)
I24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr ice accum(1/100in)
I24P5 | 0| 0| 0| 0| 0| 0| 0| 0| 50th percentile 24hr ice accum(1/100in)
I24P7 | 0| 0| 0| 0| 0| 0| 0| 0| 75th percentile 24hr ice accum(1/100in)
I24P9 | 0| 0| 0| 0| 0| 0| 0| 0| 90th percentile 24hr ice accum(1/100in)
SLPP1 016|011 010|007 008|007 010|010 013|010 011|011 015|014 017|017 018|015 10th percentile MSLP(mb)
SLPP2 017|012 011|008 010|009 012|012 014|012 014|013 017|017 021|019 021|019 25th percentile MSLP(mb)
SLPP5 018|013 012|010 011|010 014|014 017|015 016|016 019|020 025|023 023|020 50th percentile MSLP(mb)
SLPP7 018|013 013|012 013|012 016|015 018|017 018|018 022|024 027|025 025|023 75th percentile MSLP(mb)
SLPP9 019|014 014|013 014|013 017|016 019|018 020|019 024|027 031|028 029|026 90th percentile MSLP(mb)