NBM Guidance for MT. WILSON (WSFO3)
45.0396N 121.6735W
Elevation 4081 ft
HOURLY TO 24 HOURS:
WSFO3 NBM V5.0 NBH GUIDANCE 8/27/2026 1400 UTC
UTC 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 (UTC)
PDT 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 Time (PDT)
TMP 53 57 61 64 68 69 70 70 70 68 65 60 56 53 52 51 50 50 49 48 48 48 46 46 49 Temperature(F)
TSD 2 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 SD of temp(F)
DPT 50 52 52 50 48 45 42 42 42 44 45 46 47 47 47 46 47 46 46 46 45 45 45 45 46 Dew point temp(F)
DSD 1 2 3 3 3 3 4 3 3 3 3 2 3 2 2 2 2 1 2 2 2 2 2 2 1 Dew point temp SD(F)
WBG 53 56 59 61 64 64 64 63 61 60 57 56 52 51 50 49 48 48 48 46 46 46 45 46 48 Wet bulb temp(F)
SKY 32 22 23 13 16 7 6 7 5 4 8 9 17 20 33 30 20 28 28 25 13 14 23 34 14 Sky cover(%)
SSD 29 29 30 20 23 13 13 14 11 11 21 16 29 27 24 28 24 21 27 26 15 22 18 27 24 Sky cover SD(%)
WDR 28 27 26 26 27 28 28 28 28 28 29 30 30 31 31 31 31 31 31 31 31 30 31 31 30 Wind dir (deg)
WSP 4 4 5 5 5 6 6 6 6 6 6 6 6 5 5 4 4 4 4 3 3 3 3 3 3 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 1 1 1 Wind spd SD(kts)
GST 11 12 13 13 14 14 15 15 16 16 16 16 15 14 12 11 10 10 9 9 8 8 8 8 8 Wind gust(kts)
GSD 2 2 2 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 Wind gust SD(kts)
P01 1 1 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1-hr PoP(%)
P06 1 1 1 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 98 94 89 85 83 82 81 82 81 81 81 81 81 80 80 80 80 80 80 79 79 79 79 79 78 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 16 13 11 6 5 2 2 1 1 0 1 1 1 2 3 4 6 8 8 10 12 14 15 15 13 Prob cig<=3000ft(%) MVFR
IFC 5 3 1 0 0 0 0 0 0 0 0 0 0 0 1 1 3 3 3 4 4 4 4 5 4 Prob cig<1000ft(%) IFR
LIC 4 2 1 0 0 0 0 0 0 0 0 0 0 0 1 1 2 2 3 3 2 2 2 3 2 Prob cig<500ft(%) LIFR
LCB 44 6 50120 80110130160100 90 70 45 25 22 60 70 60 60 60 33 33 24 21180150 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 12 8 6 4 4 4 4 4 3 2 4 1 1 0 1 2 4 4 6 7 8 10 12 12 10 Prob vsby<=5mi(%) MVFR
IFV 4 3 2 1 1 1 1 1 1 0 1 0 0 0 0 0 1 1 2 3 4 5 6 7 6 Prob vsby<3mi(%) IFR
LIV 3 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 3 4 4 4 Prob vsby<1mi(%) LIFR
MHT 14 20 24 29 33 35 40 41 39 34 29 23 14 13 10 5 5 5 5 5 5 5 4 4 5 MixHgt 100s feet AGL
TWD 27 26 26 26 26 26 26 26 27 27 28 29 30 29 29 28 28 28 28 28 29 29 28 29 29 Transport wind dir
TWS 12 12 13 14 14 15 16 16 17 17 17 16 14 13 11 10 9 9 9 8 8 7 7 7 7 Transport wind spd(kts)
SOL 18 34 48 62 81 86 85 78 66 52 30 13 3 3 2 2 0 0 0 0 0 0 0 4 17 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
WSFO3 NBM V5.0 NBS GUIDANCE 8/27/2026 1400 UTC
DT /AUG 27/AUG 28 /AUG 29 /AUG 30
UTC 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Time (UTC)
PDT 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 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 46 72 45 63 42 Max/Min Temp(F)
XND 2 2 2 2 3 SD of max/min temps(F)
TMP 64 70 68 56 51 49 48 49 65 71 67 55 50 48 47 45 56 62 60 50 46 45 43 Temperature(F)
TSD 2 2 2 2 1 1 1 1 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 SD of temp(F)
DPT 50 42 44 47 46 46 45 46 45 43 46 46 44 43 43 42 42 39 42 42 40 39 39 Dew point temp(F)
DSD 3 4 3 3 2 2 2 1 2 3 2 2 2 1 2 2 2 3 3 3 2 2 2 Dew point temp SD(F)
WBG 61 64 60 52 49 48 46 48 60 64 60 52 48 46 46 44 54 58 54 47 44 42 42 Wet bulb temp(F)
SKY 13 6 4 17 30 28 14 14 2 3 3 17 37 49 59 36 16 16 15 32 33 37 30 Sky cover(%)
SSD 20 13 11 29 28 27 22 24 3 3 3 5 15 23 16 18 13 20 11 17 17 23 26 Sky cover SD(%)
WDR 26 28 28 30 31 31 30 30 29 29 29 29 29 28 28 27 28 28 29 29 28 27 27 Wind dir (deg)
WSP 5 6 6 6 4 4 3 3 3 5 6 7 7 6 6 6 6 6 7 6 5 4 4 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 2 1 Wind spd SD(kts)
GST 13 15 16 15 11 9 8 8 9 12 16 18 18 16 16 15 14 15 17 16 13 10 9 Wind gust(kts)
GSD 3 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 2 2 3 3 3 4 3 Wind gust SD(kts)
P06 1 1 1 1 0 1 6 10 2 4 1 6-hr PoP(%)
P12 1 2 8 2 4 12-hr PoP(%)
Q06 0 0 0 0 0 0 0 0 0 0 0 6-hr QPF(.01in)
Q12 0 0 0 0 0 12-hr QPF(.01in)
DUR 0 0 0 0 0 Duration of precip(hrs)
T03 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 3-hr Tstm prob(%)
T06 0 0 0 0 0 0 1 2 4 1 0 6-hr Tstm prob(%)
T12 0 0 1 4 1 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 0 0 0 0 0 0 0 2 2 0 0 0 0 Cond prob of rain(%)
S06 0 0 0 0 0 0 0 0 0 0 0 6-hr snow(1/10in)
SLV 85 81 81 81 80 80 79 78 79 85 84 82 79 80 75 68 67 72 74 74 73 70 68 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG -88-88-88-88-88-88-88-88-88-88-88-88-88-88 90-88-88-88-88-88-88-88-88 Ceiling height*
IFC 0 0 0 0 1 3 4 4 1 0 0 2 3 4 6 4 2 0 0 2 3 5 5 Prob cig<1000ft(%) IFR
LCB 120130 90 25 70 60 24150200180150120 1 1 1 1 11 28 34 70 7 1 1 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 1 1 0 0 0 2 5 6 2 2 1-99-99-99-99-99-99-99-99-99-99-99-99 Prob vsby<3mi(%) IFR
MHT 29 40 34 14 5 5 5 5 26 45 33 17 8 10 8 16 36 46 41 19 7 7 5 MixHgt 100s feet AGL
TWD 26 26 27 30 28 28 29 29 28 27 28 30 29 28 28 28 28 28 28 29 28 28 28 Transport wind dir
TWS 14 16 17 14 10 9 7 7 8 12 15 15 14 14 13 13 13 15 17 15 13 12 10 Transport wind spd(kts)
SOL 62 85 52 3 2 0 0 17 61 83 53 5 2 0 0 13 44 78 73 19 10 0 0 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
WSFO3 NBM V5.0 NBE GUIDANCE 8/27/2026 1400 UTC
FRI 28 |SAT 29 |SUN 30 |MON 31 |TUE 01 |WED 02 |THU 03 |FRI 04 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 22| 34 46| 58 70| 82 94|106 118|130 142|154 166|178 190 Forecast Hour
TXN 46| 72 45| 63 42| 71 45| 76 48| 70 46| 65 46| 64 44 45 72 Max/Min Temp(F)
XND 2| 2 2| 2 3| 5 3| 4 3| 5 3| 7 3| 8 4 SD of max/min temps(F)
TMP 48| 67 47| 60 43| 67 47| 70 49| 64 48| 61 49| 61 47 Temperature(F)
TSD 1| 2 2| 2 2| 4 3| 4 3| 5 2| 7 3| 8 4 SD of temp(F)
DPT 45| 46 43| 42 39| 40 35| 43 42| 47 43| 46 43| 46 40 Dew point temp(F)
DSD 2| 2 2| 3 2| 3 3| 3 3| 3 3| 4 3| 5 4 Dew point temp SD(F)
WBG 46| 60 46| 54 42| 59 43| 62 46| 59 46| 56 46| 56 44 Wet bulb temp(F)
SKY 14| 3 59| 15 30| 15 25| 32 52| 31 55| 39 50| 29 31 Sky cover(%)
SSD 22| 3 16| 11 26| 27 28| 27 34| 22 18| 26 26| 21 22 Sky cover SD(%)
WDR 30| 29 28| 29 27| 30 28| 29 27| 28 26| 27 26| 28 27 Wind dir (deg)
WSP 3| 6 6| 7 4| 3 1| 4 4| 6 4| 5 3| 5 3 Wind spd (kts)
WSD 1| 1 1| 1 1| 1 1| 2 1| 2 2| 2 2| 2 3 Wind spd SD(kts)
GST 8| 16 16| 17 9| 8 5| 11 10| 16 9| 14 9| 13 9 Wind gust(kts)
GSD 2| 2 3| 3 3| 3 3| 4 3| 4 5| 6 8| 6 7 Wind gust SD(kts)
P12 1| 2 8| 2 4| 0 1| 0 6| 14 29| 35 46| 43 32 -99-99 12-hr PoP(%)
Q12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 7 13| 19 5 12-hr QPF(.01in)
Q24 | 0| 0| 0| 0| 0| 20| 24 23 24-hr QPF(.01in)
DUR 0| 0 0| 0 0| 0 0| 0 0| 0 0| 3 3| 4 1 Duration of precip(hrs)
T12 0| 0 1| 4 1| 1 1| 1 2| 8 6| 6 7| 9 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 0| 0 0| 2 0| 0 1| 4 22| 32 35| 40 42| 43 26 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 79| 84 75| 74 68| 87 88| 98 91| 90 85| 87 81| 84 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| 51 2| 52 7| 46 7| 42 6| 30 5| 22 3| 16 3 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
WSFO3 NBM V5.0 NBX GUIDANCE 8/27/2026 1400 UTC
SAT 05| SUN 06| MON 07
UTC 00 12 |00 12 |00 12 Time (UTC)
PDT 17 05 |17 05 |17 05 Time (PDT)
FHR 202 214|226 238|250 262 Forecast Hour
TXN 66 45| 69 47| 73 49 Max/Min Temp(F)
XND 9 6| 9 5| 8 5 SD of max/min temps(F)
TMP 64 48| 65 50| 68 51 Temperature(F)
TSD 9 6| 8 5| 8 5 SD of temp(F)
DPT 45 38| 44 38| 45 39 Dew point temp(F)
DSD 5 5| 6 7| 6 7 Dew point temp SD(F)
WBG 57 44| 59 45| 60 47 Wet bulb temp(F)
SKY 22 32| 25 30| 25 32 Sky cover(%)
SSD 17 21| 13 16| 12 15 Sky cover SD(%)
WDR 29 27| 31 30| 32 7 Wind dir (deg)
WSP 4 3| 3 3| 4 4 Wind spd (kts)
WSD 2 2| 2 3| 2 3 Wind spd SD(kts)
GST 11 7| 9 7| 10 8 Wind gust(kts)
GSD 6 5| 5 6| 5 6 Wind gust SD(kts)
P12 28 19| 21 20| 16 14 12-hr PoP(%)
Q12 0 5| 0 0| 2 1 12-hr QPF(.01in)
Q24 5| 0| 3 24-hr QPF(.01in)
DUR 0 1| 0 0| 1 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 28 21| 20 12| 16 12 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 83 80| 87 81| 89 87 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 16 14| 24 12| 28 19 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
WSFO3 NBM V5.0 NBP GUIDANCE 8/27/2026 1300 UTC
FRI 28| SAT 29| SUN 30| MON 31| TUE 01| WED 02| THU 03| FRI 04| SAT 05|
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 46| 72 45| 63 42| 71 45| 76 48| 70 45| 65 46| 64 44| 66 45| 66 Mean min/max temp(F)
TXNSD 2| 2 2| 2 3| 5 3| 4 3| 5 3| 7 3| 8 4| 9 6| 9 SD min/max temp(F)
TXNP1 43| 70 43| 60 39| 64 41| 70 44| 63 42| 57 42| 54 39| 55 38| 55 10th percentile min/max temp(F)
TXNP2 45| 71 44| 62 40| 68 42| 73 45| 65 43| 60 44| 58 40| 59 40| 59 25th percentile min/max temp(F)
TXNP5 46| 72 45| 63 41| 72 45| 76 48| 71 45| 64 46| 62 43| 67 44| 67 50th percentile min/max temp(F)
TXNP7 48| 74 47| 64 44| 75 47| 79 51| 74 48| 70 47| 71 46| 74 48| 74 75th percentile min/max temp(F)
TXNP9 49| 75 48| 66 45| 77 49| 81 53| 77 49| 75 49| 75 50| 79 55| 79 90th percentile min/max temp(F)
WSPP1 3| 5 5| 5 3| 2 0| 2 3| 4 2| 2 1| 2 1| 2 2| 1 10th percentile wnd(kts)
WSPP2 3| 6 5| 6 3| 2 1| 3 3| 5 3| 3 2| 3 2| 3 2| 3 25th percentile wnd(kts)
WSPP5 3| 6 6| 7 4| 3 2| 4 4| 6 4| 5 3| 5 3| 4 3| 3 50th percentile wnd(kts)
WSPP7 4| 7 7| 7 5| 4 3| 6 5| 7 5| 6 5| 6 5| 5 4| 5 75th percentile wnd(kts)
WSPP9 4| 8 7| 8 5| 5 4| 7 5| 8 6| 7 7| 8 7| 7 5| 7 90th percentile wnd(kts)
W24P1 | 7 | 8 | 8 | 4 | 5 | 7 | 5 | 5 | 5 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 8 | 9 | 9 | 5 | 6 | 8 | 7 | 6 | 5 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 9 | 10 | 10 | 6 | 7 | 9 | 8 | 8 | 7 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 10 | 10 | 10 | 7 | 9 | 10 | 10 | 10 | 9 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 11 | 11 | 12 | 8 | 10 | 12 | 11 | 12 | 11 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 18 | 19 | 19 | 12 | 13 | 17 | 15 | 13 | 12 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 20 | 21 | 21 | 13 | 15 | 19 | 17 | 15 | 14 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 22 | 23 | 23 | 14 | 18 | 23 | 20 | 19 | 18 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 23 | 24 | 24 | 17 | 21 | 25 | 25 | 26 | 24 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 24 | 26 | 27 | 20 | 24 | 28 | 28 | 31 | 29 90th percentile 24hr wnd gust exceedance(kts)
Q24P1 | 0| 0| 0| 0| 0| 0| 0| 0| 10th percentile 24hr QPF(1/100in)
Q24P2 | 0| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 0| 0| 0| 0| 6| 3| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 0| 0| 0| 0| 6| 40| 35| 12| 75th percentile 24hr QPF(1/100in)
Q24P9 | 3| 0| 0| 0| 24| 84| 92| 38| 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 018|012 017|014 017|010 012|006 011|009 014|011 014|012 014|012 014|012 10th percentile MSLP(mb)
SLPP2 018|013 018|015 018|012 012|008 013|011 016|013 016|014 016|014 016|013 25th percentile MSLP(mb)
SLPP5 018|013 018|016 020|013 014|009 014|012 017|015 019|016 018|016 019|016 50th percentile MSLP(mb)
SLPP7 018|014 019|017 021|015 016|010 015|013 018|017 020|018 021|018 021|017 75th percentile MSLP(mb)
SLPP9 019|014 020|017 021|017 018|011 017|014 019|019 023|020 023|019 022|019 90th percentile MSLP(mb)