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 2100 UTC
UTC 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 Time (UTC)
PDT 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Time (PDT)
TMP 67 67 65 62 58 54 52 52 51 52 52 52 52 52 52 52 52 53 54 55 56 58 59 61 62 Temperature(F)
TSD 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SD of temp(F)
DPT 52 52 51 50 50 48 47 46 47 47 48 48 48 48 48 48 49 49 51 50 50 49 49 50 50 Dew point temp(F)
DSD 2 2 2 2 2 1 1 1 2 2 1 2 2 2 2 1 1 1 1 2 2 2 2 2 2 Dew point temp SD(F)
WBG 64 62 61 59 55 52 50 49 49 50 49 51 50 51 51 50 51 52 53 55 55 57 59 59 60 Wet bulb temp(F)
SKY 21 27 31 28 16 28 45 44 56 62 85 81 78 78 80 70 85 87 70 43 61 57 55 60 48 Sky cover(%)
SSD 18 25 26 22 21 27 27 28 31 28 18 16 19 23 23 31 15 17 22 13 28 23 31 30 28 Sky cover SD(%)
WDR 30 30 29 29 29 29 28 27 26 25 24 25 24 23 25 25 24 26 26 27 27 26 27 28 27 Wind dir (deg)
WSP 5 5 5 5 5 5 4 4 4 4 4 3 3 3 4 4 4 5 6 6 7 7 7 7 6 Wind spd (kts)
WSD 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 Wind spd SD(kts)
GST 9 9 9 9 9 9 8 8 8 7 6 6 6 6 6 7 7 8 10 11 12 13 14 14 13 Wind gust(kts)
GSD 2 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Wind gust SD(kts)
P01 2 3 2 2 2 2 0 1 1 2 1 1 4 4 16 16 6 5 8 4 4 9 9 13 2 1-hr PoP(%)
P06 2 16 33 6-hr PoP(%)
Q01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 1 0 1-hr QPF (.01")
T01 0 0 0 0 0 0 0 0 0 1 1 0 2 1 1 1 1 0 0 1 1 1 1 1 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 6 6 6 6 6 38 40 21 10 24 19 7 0 0 20 8 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 81 79 77 73 70 68 67 69 73 75 76 73 71 71 69 66 64 62 62 61 64 64 66 65 65 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 35 22 13 15 22 13 13 22 22 22 27 27 35 35 45 45-88 Ceiling height*
MVC 3 3 3 4 5 6 10 15 21 26 53 62 56 57 56 42 45 48 41 36 30 21 15 11 10 Prob cig<=3000ft(%) MVFR
IFC 0 0 0 1 3 5 8 8 11 11 25 12 10 24 25 14 14 10 6 3 2 2 1 1 1 Prob cig<1000ft(%) IFR
LIC 0 0 0 1 1 3 4 5 6 7 11 6 4 9 9 5 2 1 0 0 0 0 0 0 0 Prob cig<500ft(%) LIFR
LCB 33 30 29 22 17 12 11 25 33 22 11 7 9 6 5 9 12 12 15 21 25 27 27 28 24 Lowest cloud base*
VIS 100100100100100100100100100100100100100100 70100 90100100100100100100100100 Visibility*
MVV 1 0 0 0 1 1 3 4 7 8 12 12 11 17 25 23 19 14 8 5 3 1 1 1 1 Prob vsby<=5mi(%) MVFR
IFV 0 0 0 0 1 1 3 3 5 6 8 9 9 10 14 15 11 7 4 2 1 1 1 1 1 Prob vsby<3mi(%) IFR
LIV 0 0 0 0 1 1 2 2 3 4 5 6 6 6 9 9 7 3 2 1 0 0 0 0 0 Prob vsby<1mi(%) LIFR
MHT 40 37 30 28 21 12 5 4 4 4 4 4 4 4 5 4 5 13 16 28 31 33 35 34 38 MixHgt 100s feet AGL
TWD 30 30 30 29 30 31 30 30 30 29 29 29 28 28 28 28 28 28 29 28 28 28 28 28 28 Transport wind dir
TWS 7 7 9 10 10 9 9 8 8 7 8 8 7 8 7 7 7 8 8 9 10 11 12 12 12 Transport wind spd(kts)
SOL 60 53 45 28 14 4 3 2 2 0 0 0 0 0 0 0 0 7 11 25 35 55 50 47 56 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
SFKO3 NBM V5.0 NBS GUIDANCE 8/28/2026 2100 UTC
DT /AUG 29 /AUG 30 /AUG 31
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 06 09 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 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 54 51 52 52 53 56 61 61 54 51 51 50 52 58 66 67 57 53 52 51 54 64 71 Temperature(F)
TSD 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 2 1 2 2 1 2 3 4 SD of temp(F)
DPT 48 47 48 48 49 50 50 49 48 47 48 45 46 48 49 51 50 48 48 45 46 51 53 Dew point temp(F)
DSD 1 2 2 2 1 2 2 1 1 2 2 2 2 2 2 2 1 2 2 3 3 2 2 Dew point temp SD(F)
WBG 52 49 51 51 52 55 59 57 51 49 50 48 50 57 63 62 54 51 51 49 51 61 68 Wet bulb temp(F)
SKY 28 56 81 80 87 61 60 35 50 74 78 86 67 39 21 27 22 25 17 30 47 34 36 Sky cover(%)
SSD 27 31 16 23 17 28 30 34 36 36 25 11 29 24 12 21 15 20 16 19 34 28 29 Sky cover SD(%)
WDR 29 26 25 25 26 27 28 29 28 27 25 25 28 33 32 33 34 36 1 2 1 35 32 Wind dir (deg)
WSP 5 4 3 4 5 7 7 6 3 3 2 2 2 3 3 3 3 3 3 3 4 2 3 Wind spd (kts)
WSD 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 1 2 2 1 1 Wind spd SD(kts)
GST 9 8 6 6 8 12 14 11 7 6 5 4 4 6 7 7 5 6 6 6 5 5 6 Wind gust(kts)
GSD 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 Wind gust SD(kts)
P06 2 16 33 18 3 2 1 0 0 0 0 6-hr PoP(%)
P12 10 42 5 0 0 12-hr PoP(%)
Q06 0 0 3 0 0 0 0 0 0 0 0 6-hr QPF(.01in)
Q12 0 3 0 0 0 12-hr QPF(.01in)
DUR 1 2 0 0 0 Duration of precip(hrs)
T03 0 0 2 4 2 2 3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3-hr Tstm prob(%)
T06 0 8 5 6 2 2 1 0 0 0 0 6-hr Tstm prob(%)
T12 8 7 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 6 38 10 7 20 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 Cond prob of rain(%)
S06 0 0 0 0 0 0 0 0 0 0 0 6-hr snow(1/10in)
SLV 68 73 73 69 62 64 65 66 65 64 64 64 78 83 98100 99 99 98100100100 99 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG -88 35 15 13 22 35 45-88-88 45 35 90 70-88-88-88-88-88-88-88-88-88-88 Ceiling height*
IFC 5 11 12 25 10 2 1 1 2 3 5 2 7 2 0 0 0 1 3 13 17 8 1 Prob cig<1000ft(%) IFR
LCB 12 33 7 5 12 25 28 31 80 45 20 4 13 7 31 50 60110100110110120 80 Lowest cloud base*
VIS 100100100 70100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 1 5 9 14 7 1 1 1 1 2 7 5 5 1 0 0 0 0 2 6 6 2 0 Prob vsby<3mi(%) IFR
MHT 12 4 4 5 13 31 34 34 11 4 4 5 11 29 40 34 6 4 4 4 4 27 42 MixHgt 100s feet AGL
TWD 31 30 29 28 28 28 28 29 28 30 31 29 31 34 34 35 35 1 2 2 1 2 33 Transport wind dir
TWS 9 8 8 7 8 10 12 11 8 7 5 5 4 3 5 5 6 7 7 7 5 4 5 Transport wind spd(kts)
SOL 4 2 0 0 7 35 47 50 5 3 0 0 11 42 73 57 10 5 0 0 3 23 72 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
SFKO3 NBM V5.0 NBE GUIDANCE 8/28/2026 2100 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 15| 27 39| 51 63| 75 87| 99 111|123 135|147 159|171 183 Forecast Hour
TXN 49| 62 46| 67 49| 73 52| 64 53| 58 50| 60 48| 63 49 47 76 Max/Min Temp(F)
XND 2| 1 2| 3 3| 4 3| 4 2| 3 4| 4 4| 5 4 SD of max/min temps(F)
TMP 52| 61 50| 67 51| 70 53| 61 54| 57 52| 59 51| 63 51 Temperature(F)
TSD 1| 1 2| 2 1| 5 2| 3 1| 3 2| 4 3| 5 3 SD of temp(F)
DPT 48| 49 45| 51 45| 55 50| 55 51| 55 49| 53 46| 53 46 Dew point temp(F)
DSD 2| 1 2| 2 3| 3 3| 3 2| 3 3| 4 4| 4 4 Dew point temp SD(F)
WBG 51| 57 48| 62 49| 65 51| 59 52| 56 51| 58 49| 60 49 Wet bulb temp(F)
SKY 80| 35 86| 27 30| 48 73| 66 86| 82 80| 62 58| 47 61 Sky cover(%)
SSD 23| 34 11| 21 19| 28 11| 17 9| 26 11| 26 22| 25 21 Sky cover SD(%)
WDR 25| 29 25| 33 2| 30 29| 25 18| 22 19| 26 5| 33 3 Wind dir (deg)
WSP 4| 6 2| 3 3| 4 2| 5 13| 5 8| 3 3| 3 3 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 20| 14 10| 9 4| 7 5 Wind gust(kts)
GSD 2| 2 2| 1 2| 2 3| 3 7| 5 7| 4 3| 3 4 Wind gust SD(kts)
P12 10| 42 5| 0 0| 1 4| 34 45| 90 84| 75 35| 38 13 -99-99 12-hr PoP(%)
Q12 0| 3 0| 0 0| 0 0| 5 13| 74 43| 28 12| 6 0 12-hr QPF(.01in)
Q24 | 3| 0| 0| 18| 117| 40| 6 70 24-hr QPF(.01in)
DUR 1| 2 0| 0 0| 0 0| 1 3| 8 6| 4 3| 2 0 Duration of precip(hrs)
T12 8| 7 2| 1 0| 0 1| 8 7| 12 13| 18 9| 10 6 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 38| 0 0| 0 0| 3 15| 29 76| 81 63| 68 17| 32 8 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| 66 64|102 100| 95 90| 85 82| 76 66| 68 69| 77 78 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| 32 0| 46 4| 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 2100 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 195 207|219 231|243 255 Forecast Hour
TXN 68 53| 72 56| 75 56 Max/Min Temp(F)
XND 7 7| 9 7| 9 7 SD of max/min temps(F)
TMP 68 54| 72 56| 73 56 Temperature(F)
TSD 7 4| 8 5| 9 5 SD of temp(F)
DPT 53 45| 54 47| 55 48 Dew point temp(F)
DSD 4 5| 5 5| 5 5 Dew point temp SD(F)
WBG 63 50| 65 52| 67 53 Wet bulb temp(F)
SKY 40 45| 31 66| 41 57 Sky cover(%)
SSD 35 36| 28 25| 28 21 Sky cover SD(%)
WDR 27 23| 28 32| 30 28 Wind dir (deg)
WSP 3 5| 3 4| 3 4 Wind spd (kts)
WSD 1 4| 2 3| 2 3 Wind spd SD(kts)
GST 7 6| 6 6| 6 6 Wind gust(kts)
GSD 3 5| 3 5| 3 4 Wind gust SD(kts)
P12 21 6| 11 8| 10 10 12-hr PoP(%)
Q12 2 0| 0 0| 0 0 12-hr QPF(.01in)
Q24 2| 0| 0 24-hr QPF(.01in)
DUR 1 0| 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 15 8| 9 5| 9 11 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 83| 88 87| 91 90 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 11 11| 26 17| 22 7 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
SFKO3 NBM V5.0 NBP GUIDANCE 8/28/2026 1900 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 17| 29 41| 53 65| 77 89|101 113|125 137|149 161|173 185|197 209|221 Forecast Hour
TXNMN 49| 61 46| 67 49| 73 52| 64 53| 58 50| 60 48| 63 49| 68 53| 68 Mean min/max temp(F)
TXNSD 2| 1 2| 3 3| 4 3| 4 2| 3 4| 4 4| 5 4| 7 7| 7 SD min/max temp(F)
TXNP1 46| 59 44| 63 45| 67 47| 59 50| 53 46| 56 44| 59 45| 60 45| 60 10th percentile min/max temp(F)
TXNP2 47| 60 45| 65 47| 70 50| 61 51| 57 47| 58 45| 60 46| 62 48| 62 25th percentile min/max temp(F)
TXNP5 49| 61 46| 67 49| 73 53| 63 53| 58 50| 59 47| 62 48| 67 51| 67 50th percentile min/max temp(F)
TXNP7 50| 62 48| 69 50| 76 54| 66 54| 60 52| 61 50| 67 51| 73 58| 73 75th percentile min/max temp(F)
TXNP9 51| 63 49| 70 52| 78 56| 69 55| 61 55| 64 54| 70 55| 78 64| 78 90th percentile min/max temp(F)
WSPP1 2| 4 1| 2 1| 2 0| 3 3| 2 2| 1 0| 1 0| 2 1| 1 10th percentile wnd(kts)
WSPP2 3| 4 1| 3 2| 3 1| 4 7| 3 3| 2 1| 2 1| 2 2| 2 25th percentile wnd(kts)
WSPP5 3| 5 2| 3 3| 4 2| 5 9| 5 5| 3 3| 3 3| 3 4| 3 50th percentile wnd(kts)
WSPP7 4| 6 3| 4 4| 4 3| 6 12| 6 8| 5 4| 4 5| 4 6| 4 75th percentile wnd(kts)
WSPP9 5| 7 3| 4 5| 5 5| 7 14| 8 12| 6 6| 5 8| 5 10| 5 90th percentile wnd(kts)
W24P1 | 7 | 3 | 4 | 6 | 7 | 4 | 3 | 3 | 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 8 | 4 | 5 | 8 | 8 | 5 | 3 | 4 | 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 10 | 5 | 6 | 10 | 12 | 7 | 6 | 6 | 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 11 | 6 | 8 | 11 | 15 | 11 | 8 | 8 | 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 13 | 7 | 9 | 13 | 17 | 14 | 11 | 10 | 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 12 | 7 | 8 | 12 | 13 | 8 | 6 | 7 | 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 14 | 8 | 9 | 14 | 18 | 10 | 9 | 8 | 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 16 | 10 | 11 | 17 | 23 | 15 | 11 | 11 | 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 18 | 12 | 13 | 20 | 31 | 21 | 15 | 15 | 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 19 | 13 | 15 | 25 | 37 | 29 | 19 | 19 | 90th percentile 24hr wnd gust exceedance(kts)
Q24P1 | 0| 0| 0| 0| 42| 0| 0| 0| 10th percentile 24hr QPF(1/100in)
Q24P2 | 0| 0| 0| 0| 112| 7| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 0| 0| 5| 146| 29| 0| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 4| 0| 0| 31| 167| 62| 15| 1| 75th percentile 24hr QPF(1/100in)
Q24P9 | 34| 0| 0| 61| 192| 103| 51| 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|017 018|014 012|009 011|010 010|008 009|010 012|011 013|012 012|009 10th percentile MSLP(mb)
SLPP2 018|017 019|015 013|010 012|012 011|010 011|012 014|014 016|014 014|013 25th percentile MSLP(mb)
SLPP5 019|018 020|016 014|011 014|012 013|012 014|014 016|016 017|016 016|015 50th percentile MSLP(mb)
SLPP7 019|019 020|017 015|012 014|013 015|014 016|017 019|018 019|018 019|016 75th percentile MSLP(mb)
SLPP9 020|019 021|018 016|013 016|014 017|016 019|018 021|020 021|019 020|018 90th percentile MSLP(mb)