NBM Guidance for SOUTH FORK (SFKO3)
45.5953N 123.4836W
Elevation 2313 ft
HOURLY TO 24 HOURS:
SFKO3 NBM V5.0 NBH GUIDANCE 8/28/2026 1700 UTC
UTC 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 Time (UTC)
PDT 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 Time (PDT)
TMP 62 64 66 67 67 67 65 62 58 54 52 52 51 52 52 52 52 52 52 52 52 53 54 55 56 Temperature(F)
TSD 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SD of temp(F)
DPT 51 51 51 52 52 52 52 50 50 48 47 46 47 47 48 48 48 48 48 48 48 49 50 50 50 Dew point temp(F)
DSD 1 2 2 2 2 2 2 2 2 1 1 1 2 1 1 2 2 2 2 2 1 1 1 2 3 Dew point temp SD(F)
WBG 60 63 64 65 65 62 61 58 55 52 50 50 49 50 49 51 50 50 51 50 50 52 53 55 55 Wet bulb temp(F)
SKY 38 33 36 34 32 35 33 24 10 25 38 41 54 59 68 85 87 83 83 65 77 79 67 43 61 Sky cover(%)
SSD 24 23 26 19 21 20 25 20 10 25 26 26 31 31 27 19 18 26 18 35 27 27 22 18 31 Sky cover SD(%)
WDR 32 31 30 29 30 30 29 29 29 29 28 27 26 26 25 25 25 25 27 26 24 26 26 27 26 Wind dir (deg)
WSP 3 3 4 4 5 5 5 5 5 5 5 4 4 4 4 3 3 3 4 4 4 5 6 6 7 Wind spd (kts)
WSD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 1 Wind spd SD(kts)
GST 7 7 8 9 9 9 9 9 9 9 9 8 8 7 6 6 6 6 6 7 7 9 10 11 12 Wind gust(kts)
GSD 1 1 1 1 2 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Wind gust SD(kts)
P01 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 4 3 6 11 8 4 4 2 2 1-hr PoP(%)
P06 1 1 8 34 6-hr PoP(%)
Q01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 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 1 1 1 1 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 3 3 4 14 16 37 22 22 7 22 22 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 82 83 82 82 81 80 78 75 71 69 68 70 73 74 75 72 70 69 69 67 63 61 60 61 64 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 27-88-88-88-88-88-88-88-88-88-88 35 22 27 22 22 22 27 27 27 27 22 27 27 35 Ceiling height*
MVC 40 13 10 8 6 5 6 7 9 10 14 19 24 26 28 42 39 36 35 34 41 46 42 35 28 Prob cig<=3000ft(%) MVFR
IFC 14 8 6 4 3 2 2 4 6 9 10 11 13 10 8 7 4 4 5 4 5 9 8 6 2 Prob cig<1000ft(%) IFR
LIC 11 6 3 1 1 1 1 1 3 5 7 7 8 9 8 6 3 3 4 3 4 6 5 2 0 Prob cig<500ft(%) LIFR
LCB 23 28 37 35 37 44 25 29 17 15 12 35 22 18 14 6 8 10 11 27 27 12 14 20 24 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 1 1 1 1 2 1 0 0 1 1 3 5 7 8 10 16 16 17 17 13 12 10 7 3 2 Prob vsby<=5mi(%) MVFR
IFV 1 0 0 1 1 0 0 0 1 1 2 4 5 5 7 11 12 13 12 10 8 6 3 2 0 Prob vsby<3mi(%) IFR
LIV 0 0 0 0 0 0 0 0 1 1 1 2 3 4 5 7 8 9 9 7 5 3 2 2 0 Prob vsby<1mi(%) LIFR
MHT 31 35 38 40 39 36 30 26 20 12 7 5 4 4 4 5 4 4 5 4 6 12 18 27 32 MixHgt 100s feet AGL
TWD 32 31 31 30 30 30 30 29 30 31 30 30 29 29 29 29 28 28 29 28 27 28 28 28 28 Transport wind dir
TWS 4 5 6 6 7 7 8 9 9 9 9 8 8 7 8 8 7 7 7 6 6 6 7 9 9 Transport wind spd(kts)
SOL 48 61 71 74 69 60 48 29 14 4 3 2 2 0 0 0 0 0 0 0 0 8 13 24 33 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
SFKO3 NBM V5.0 NBS GUIDANCE 8/28/2026 1700 UTC
DT /AUG 29 /AUG 30 /AUG 31
UTC 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 Time (UTC)
PDT 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 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 49 62 46 67 49 Max/Min Temp(F)
XND 2 1 2 3 3 SD of max/min temps(F)
TMP 67 65 54 51 52 52 53 56 61 61 54 51 51 50 52 58 65 67 57 53 53 52 54 Temperature(F)
TSD 2 2 1 1 1 1 1 1 2 1 1 1 1 2 1 2 2 2 1 2 2 2 2 SD of temp(F)
DPT 52 52 48 47 48 48 49 50 50 49 48 46 47 45 46 48 50 51 50 48 48 45 47 Dew point temp(F)
DSD 2 2 1 2 2 2 1 3 2 2 1 2 2 2 2 2 2 3 2 2 3 4 3 Dew point temp SD(F)
WBG 65 61 52 49 51 51 52 55 59 57 51 49 50 48 50 56 63 62 54 51 51 49 52 Wet bulb temp(F)
SKY 34 33 25 54 85 83 79 61 60 43 50 74 78 86 75 54 44 26 30 28 18 26 36 Sky cover(%)
SSD 19 25 25 31 19 18 27 31 32 35 36 33 24 11 18 22 21 16 22 20 14 21 30 Sky cover SD(%)
WDR 29 29 29 26 25 27 26 26 28 28 28 27 28 24 29 32 32 33 34 35 1 1 1 Wind dir (deg)
WSP 4 5 5 4 3 4 5 7 7 6 4 3 3 2 3 3 3 3 3 3 4 4 4 Wind spd (kts)
WSD 1 1 1 1 1 1 2 1 1 1 1 1 2 1 2 1 1 1 1 1 2 2 2 Wind spd SD(kts)
GST 9 9 9 8 6 6 9 12 14 11 7 6 5 4 5 7 7 7 5 6 6 6 6 Wind gust(kts)
GSD 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 Wind gust SD(kts)
P06 1 1 8 34 15 6 2 0 0 0 0 6-hr PoP(%)
P12 10 38 7 1 0 12-hr PoP(%)
Q06 0 0 0 2 0 0 0 0 0 0 0 6-hr QPF(.01in)
Q12 0 2 0 0 0 12-hr QPF(.01in)
DUR 1 3 0 0 0 Duration of precip(hrs)
T03 0 0 0 0 1 3 1 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3-hr Tstm prob(%)
T06 0 0 5 4 4 2 2 1 0 0 0 6-hr Tstm prob(%)
T12 5 5 2 1 0 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 3 16 22 22 16 3 0 0 0 0 0 0 0 0 0 0 0 0 1 Cond prob of rain(%)
S06 0 0 0 0 0 0 0 0 0 0 0 6-hr snow(1/10in)
SLV 82 78 69 73 72 69 61 64 65 65 65 66 66 65 77 96 99100100100100100100 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 22 22 27 22 35 45-88-88 70 46 90 70-88-88-88-88-88-88-88-88 Ceiling height*
IFC 4 2 9 13 7 5 9 2 1 0 1 2 3 2 7 2 0 0 0 1 3 13 17 Prob cig<1000ft(%) IFR
LCB 35 25 15 22 6 11 12 24 26 30 70 23 1 4 13 19 35 50 70100 80 90100 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 1 0 1 5 11 12 6 0 0 0 1-99-99-99-99-99-99-99-99-99-99-99-99 Prob vsby<3mi(%) IFR
MHT 40 30 12 4 5 5 12 32 37 34 11 4 4 5 10 30 37 31 6 4 4 4 3 MixHgt 100s feet AGL
TWD 30 30 31 29 29 29 28 28 28 29 28 31 30 31 29 32 33 33 35 36 2 3 1 Transport wind dir
TWS 6 8 9 8 8 7 6 9 11 11 8 6 5 5 4 4 5 6 6 6 6 5 4 Transport wind spd(kts)
SOL 74 48 4 2 0 0 8 33 53 47 5 3 0 0 3 22 65 56 20 10 0 0 3 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
SFKO3 NBM V5.0 NBE GUIDANCE 8/28/2026 1700 UTC
SAT 29 |SUN 30 |MON 31 |TUE 01 |WED 02 |THU 03 |FRI 04 |SAT 05 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 19| 31 43| 55 67| 79 91|103 115|127 139|151 163|175 187 Forecast Hour
TXN 49| 62 46| 67 49| 73 52| 65 52| 58 50| 60 48| 64 50 47 76 Max/Min Temp(F)
XND 2| 1 2| 3 3| 4 3| 4 3| 4 3| 4 4| 5 5 SD of max/min temps(F)
TMP 52| 61 50| 67 52| 70 53| 62 54| 57 52| 60 51| 64 52 Temperature(F)
TSD 1| 1 2| 2 2| 4 2| 3 2| 3 2| 4 3| 6 3 SD of temp(F)
DPT 48| 49 45| 51 45| 55 49| 54 50| 55 49| 53 46| 53 45 Dew point temp(F)
DSD 2| 2 2| 3 4| 3 3| 3 3| 3 4| 4 4| 4 4 Dew point temp SD(F)
WBG 51| 57 48| 62 49| 65 51| 60 52| 56 51| 58 49| 61 49 Wet bulb temp(F)
SKY 83| 43 86| 26 26| 38 63| 47 82| 82 75| 64 46| 36 38 Sky cover(%)
SSD 18| 35 11| 16 21| 33 24| 22 13| 24 20| 26 25| 15 27 Sky cover SD(%)
WDR 27| 28 24| 33 1| 30 27| 26 19| 22 20| 28 36| 30 36 Wind dir (deg)
WSP 4| 6 2| 3 4| 4 2| 5 12| 5 9| 4 3| 3 4 Wind spd (kts)
WSD 1| 1 1| 1 2| 1 2| 1 4| 2 4| 2 3| 2 3 Wind spd SD(kts)
GST 6| 11 4| 7 6| 8 4| 11 19| 13 11| 9 5| 8 5 Wind gust(kts)
GSD 2| 2 2| 2 2| 2 2| 2 7| 4 7| 5 4| 3 4 Wind gust SD(kts)
P12 10| 38 7| 1 0| 1 4| 27 36| 88 79| 71 26| 32 8 -99-99 12-hr PoP(%)
Q12 0| 2 0| 0 0| 0 0| 5 8| 76 31| 34 4| 7 0 12-hr QPF(.01in)
Q24 | 2| 0| 0| 13| 107| 38| 7 70 24-hr QPF(.01in)
DUR 1| 3 0| 0 0| 0 0| 1 3| 8 5| 5 1| 3 0 Duration of precip(hrs)
T12 5| 5 2| 1 0| 0 1| 6 6| 11 11| 15 7| 8 5 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 16| 3 0| 0 0| 3 15| 23 76| 95 62| 60 15| 25 10 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 69| 65 65|101 104| 97 92| 83 82| 77 67| 69 68| 75 76 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 4| 33 1| 37 7| 41 6| 42 3| 34 7| 15 6| 42 3 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
SFKO3 NBM V5.0 NBX GUIDANCE 8/28/2026 1700 UTC
SUN 06| MON 07| TUE 08
UTC 00 12 |00 12 |00 12 Time (UTC)
PDT 17 05 |17 05 |17 05 Time (PDT)
FHR 199 211|223 235|247 259 Forecast Hour
TXN 69 54| 72 56| 75 56 Max/Min Temp(F)
XND 8 7| 9 7| 9 8 SD of max/min temps(F)
TMP 68 54| 72 56| 73 56 Temperature(F)
TSD 8 4| 9 5| 9 5 SD of temp(F)
DPT 53 46| 54 47| 55 47 Dew point temp(F)
DSD 5 5| 5 5| 4 5 Dew point temp SD(F)
WBG 63 51| 65 52| 66 52 Wet bulb temp(F)
SKY 43 31| 29 50| 38 48 Sky cover(%)
SSD 32 31| 13 25| 26 22 Sky cover SD(%)
WDR 31 4| 32 36| 29 33 Wind dir (deg)
WSP 3 5| 3 4| 3 4 Wind spd (kts)
WSD 2 4| 2 3| 2 3 Wind spd SD(kts)
GST 7 7| 7 6| 6 6 Wind gust(kts)
GSD 3 5| 3 4| 3 4 Wind gust SD(kts)
P12 21 14| 12 7| 9 8 12-hr PoP(%)
Q12 3 4| 0 0| 0 0 12-hr QPF(.01in)
Q24 7| 0| 0 24-hr QPF(.01in)
DUR 1 1| 0 0| 0 0 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 24 11| 10 5| 8 9 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 84 82| 87 87| 91 91 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 12 11| 26 17| 22 7 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
SFKO3 NBM V5.0 NBP GUIDANCE 8/28/2026 1300 UTC
SAT 29| SUN 30| MON 31| TUE 01| WED 02| THU 03| FRI 04| SAT 05| SUN 06|
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 23| 35 47| 59 71| 83 95|107 119|131 143|155 167|179 191|203 215|227 Forecast Hour
TXNMN 49| 61 46| 67 49| 73 52| 65 52| 58 50| 60 48| 64 50| 69 54| 69 Mean min/max temp(F)
TXNSD 2| 1 2| 3 3| 4 3| 4 3| 4 3| 4 4| 5 5| 8 7| 8 SD min/max temp(F)
TXNP1 46| 59 43| 63 45| 68 49| 60 49| 53 46| 56 44| 59 44| 59 46| 59 10th percentile min/max temp(F)
TXNP2 48| 60 45| 65 47| 71 50| 61 51| 56 48| 58 45| 60 46| 62 49| 62 25th percentile min/max temp(F)
TXNP5 49| 61 46| 67 50| 73 52| 64 52| 58 50| 59 48| 62 49| 68 52| 68 50th percentile min/max temp(F)
TXNP7 50| 62 48| 69 51| 76 54| 68 54| 60 52| 61 51| 68 52| 74 59| 74 75th percentile min/max temp(F)
TXNP9 51| 63 49| 70 53| 78 55| 70 55| 62 55| 65 55| 72 57| 79 64| 79 90th percentile min/max temp(F)
WSPP1 2| 4 0| 2 1| 2 1| 3 3| 2 2| 1 1| 2 0| 2 1| 1 10th percentile wnd(kts)
WSPP2 3| 4 1| 3 2| 3 2| 4 5| 3 3| 2 2| 2 2| 2 2| 2 25th percentile wnd(kts)
WSPP5 3| 5 2| 3 3| 4 2| 5 8| 4 5| 4 3| 3 3| 3 4| 3 50th percentile wnd(kts)
WSPP7 4| 6 3| 4 4| 4 3| 6 12| 6 8| 5 4| 5 5| 4 7| 4 75th percentile wnd(kts)
WSPP9 5| 7 3| 4 6| 5 4| 7 13| 8 11| 6 7| 5 9| 5 10| 5 90th percentile wnd(kts)
W24P1 | 6 | 7 | 3 | 4 | 6 | 4 | 3 | 3 | 3 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 7 | 8 | 4 | 5 | 8 | 7 | 5 | 4 | 4 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 9 | 10 | 5 | 6 | 10 | 11 | 8 | 6 | 6 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 10 | 11 | 6 | 8 | 11 | 14 | 11 | 9 | 9 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 11 | 13 | 7 | 9 | 13 | 17 | 14 | 11 | 11 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 11 | 12 | 7 | 8 | 12 | 13 | 8 | 7 | 7 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 13 | 14 | 8 | 9 | 13 | 18 | 11 | 9 | 8 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 14 | 16 | 10 | 11 | 17 | 23 | 15 | 13 | 12 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 16 | 18 | 12 | 13 | 19 | 29 | 21 | 16 | 16 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 17 | 19 | 13 | 15 | 24 | 33 | 29 | 22 | 20 90th percentile 24hr wnd gust exceedance(kts)
Q24P1 | 0| 0| 0| 0| 18| 0| 0| 0| 10th percentile 24hr QPF(1/100in)
Q24P2 | 0| 0| 0| 0| 92| 1| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 0| 0| 0| 138| 24| 0| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 4| 0| 0| 22| 162| 60| 13| 4| 75th percentile 24hr QPF(1/100in)
Q24P9 | 9| 0| 0| 48| 186| 107| 33| 40| 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 017|017 019|014 012|009 011|010 010|008 009|011 012|011 013|012 012|009 10th percentile MSLP(mb)
SLPP2 018|017 019|015 013|010 012|012 011|010 011|012 014|015 016|014 014|013 25th percentile MSLP(mb)
SLPP5 019|018 020|016 014|011 014|012 013|012 013|014 016|016 018|016 017|015 50th percentile MSLP(mb)
SLPP7 019|019 020|017 015|012 014|013 014|014 016|016 019|018 020|018 019|017 75th percentile MSLP(mb)
SLPP9 019|019 021|018 016|013 015|014 016|016 019|018 021|020 021|019 020|018 90th percentile MSLP(mb)