NBM Guidance for SUMMER LAKE (SLKO3)
42.7219N 120.7527W
Elevation 5066 ft
HOURLY TO 24 HOURS:
SLKO3 NBM V5.0 NBH GUIDANCE 8/28/2026 1600 UTC
UTC 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 (UTC)
PDT 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 Time (PDT)
TMP 67 72 75 78 80 81 81 81 80 77 71 66 64 60 59 56 54 52 50 50 48 48 54 59 61 Temperature(F)
TSD 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 SD of temp(F)
DPT 42 41 38 35 32 29 29 30 30 30 32 33 34 37 38 39 39 39 39 40 39 40 44 45 45 Dew point temp(F)
DSD 2 2 2 2 3 3 3 3 2 3 3 3 3 3 3 3 3 3 3 3 2 2 2 2 2 Dew point temp SD(F)
WBG 58 63 65 65 66 65 64 64 63 62 57 54 54 52 51 49 48 47 47 46 45 45 51 54 56 Wet bulb temp(F)
SKY 19 15 16 18 40 40 44 48 45 47 43 32 28 11 6 9 7 8 6 6 14 26 16 5 7 Sky cover(%)
SSD 30 21 26 34 30 31 31 34 30 32 37 32 28 9 5 7 6 6 6 6 10 12 11 8 10 Sky cover SD(%)
WDR 14 20 22 22 23 24 25 26 26 27 26 25 24 20 17 17 17 20 21 23 24 24 36 34 31 Wind dir (deg)
WSP 6 6 8 9 10 10 10 10 9 7 7 7 5 3 4 4 4 5 5 5 5 4 4 4 6 Wind spd (kts)
WSD 1 1 2 2 2 1 1 2 1 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 Wind spd SD(kts)
GST 11 12 14 16 17 18 18 17 16 14 13 11 8 6 5 6 7 7 7 7 7 7 7 9 11 Wind gust(kts)
GSD 2 3 3 3 2 2 2 2 2 3 3 3 3 3 2 2 2 2 2 2 2 1 2 2 3 Wind gust SD(kts)
P01 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1-hr PoP(%)
P06 0 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 101100102104106109111112113113112111109108107106104102100 99 97 96 95 94 94 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 1 0 1 1 0 0 2 3 4 5 6 7 7 6 6 6 6 7 7 6 5 4 3 Prob cig<=3000ft(%) MVFR
IFC 0 0 1 0 0 1 0 0 2 2 3 3 3 3 3 3 3 4 4 5 5 5 4 4 2 Prob cig<1000ft(%) IFR
LIC 0 0 0 0 0 0 0 0 0 0 0 1 1 2 2 2 2 2 3 4 4 4 3 3 1 Prob cig<500ft(%) LIFR
LCB -88-88-88340110160170150110110140240200 48 41 34 33 30 24 20 17 17 10 15 31 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 3 2 1 1 1 0 0 0 0 1 1 1 1 0 0 0 2 4 4 5 4 5 5 2 3 Prob vsby<=5mi(%) MVFR
IFV 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 3 3 4 4 1 2 Prob vsby<3mi(%) IFR
LIV 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 2 3 3 1 0 Prob vsby<1mi(%) LIFR
MHT 31 49 62 80 93 98100 99 92 63 8 5 5 5 5 5 5 5 5 4 5 5 11 25 35 MixHgt 100s feet AGL
TWD 22 22 22 22 23 23 24 25 26 27 27 27 29 28 24 20 21 22 23 23 24 25 24 25 25 Transport wind dir
TWS 12 15 16 20 21 20 18 18 16 14 11 9 8 7 5 5 5 5 6 5 5 4 5 9 11 Transport wind spd(kts)
SOL 56 70 87 90 86 80 68 51 24 10 2 2 1 1 0 0 0 0 0 0 0 4 20 37 52 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
SLKO3 NBM V5.0 NBS GUIDANCE 8/28/2026 1600 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 05 08 11 14 17 20 23 26 29 32 35 38 41 44 47 50 53 56 59 62 65 68 71 Forecast Hour
TXN 48 77 41 78 49 Max/Min Temp(F)
XND 3 3 3 3 4 SD of max/min temps(F)
TMP 80 81 71 60 54 50 54 65 73 75 64 53 48 43 48 62 73 77 66 58 54 51 57 Temperature(F)
TSD 2 2 2 2 2 1 1 2 2 3 2 3 2 2 2 2 2 2 2 2 2 3 2 SD of temp(F)
DPT 32 30 32 37 39 40 44 42 35 27 26 30 31 30 35 32 26 22 23 24 25 24 30 Dew point temp(F)
DSD 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 5 5 5 5 4 4 5 Dew point temp SD(F)
WBG 66 64 57 52 48 46 51 60 62 60 51 46 42 40 44 55 62 61 53 48 46 43 49 Wet bulb temp(F)
SKY 40 48 43 11 7 6 16 1 2 6 7 6 7 5 19 1 8 5 10 9 8 6 14 Sky cover(%)
SSD 30 34 37 9 6 6 11 2 2 19 8 5 5 4 8 1 10 5 6 6 5 5 7 Sky cover SD(%)
WDR 23 26 26 20 17 23 36 28 26 28 35 36 24 19 15 14 28 29 34 36 21 19 17 Wind dir (deg)
WSP 10 10 7 3 4 5 4 7 9 10 8 6 3 3 3 3 4 3 1 3 3 3 4 Wind spd (kts)
WSD 2 2 2 2 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 2 1 1 1 Wind spd SD(kts)
GST 17 17 13 6 7 7 7 13 16 16 15 10 5 5 5 6 8 7 4 4 5 5 7 Wind gust(kts)
GSD 2 2 3 3 2 2 2 3 2 3 3 4 2 1 1 1 2 2 2 3 1 1 2 Wind gust SD(kts)
P06 0 1 1 0 2 0 0 0 0 0 0 6-hr PoP(%)
P12 1 0 1 0 0 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 0 1 2 1 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 3-hr Tstm prob(%)
T06 1 2 0 0 2 1 0 0 0 1 0 6-hr Tstm prob(%)
T12 2 2 1 0 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 0 0 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 110110110110100 99 95 95100100 93 83 75 71 69 80 91 96 96 93100100100 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG -88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88 Ceiling height*
IFC 0 0 3 3 3 5 4 1 0 0 1 3 3 4 3 2 0 0 2 3 5 6 5 Prob cig<1000ft(%) IFR
LCB 110150140 48 33 20 10 34100180140-88120160180150150140160160160130130 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 0 0 0 0 1 3 4 0 0 0 0 0 1 3 3 0 0 0 0 0 2 4 4 Prob vsby<3mi(%) IFR
MHT 93 99 8 5 5 4 11 48 81 86 7 5 4 4 6 34 63 67 5 5 5 4 4 MixHgt 100s feet AGL
TWD 23 25 27 28 21 23 24 25 26 27 33 36 2 14 15 28 26 26 3 5 10 15 16 Transport wind dir
TWS 21 18 11 7 5 5 5 12 17 15 10 8 5 3 3 6 8 7 5 7 6 5 5 Transport wind spd(kts)
SOL 86 51 2 1 0 0 20 65 88 54 5 2 0 0 16 54 88 64 19 10 0 0 5 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
SLKO3 NBM V5.0 NBE GUIDANCE 8/28/2026 1600 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 20| 32 44| 56 68| 80 92|104 116|128 140|152 164|176 188 Forecast Hour
TXN 48| 77 41| 78 49| 83 50| 76 45| 68 43| 66 40| 67 41 43 80 Max/Min Temp(F)
XND 3| 3 3| 3 4| 2 4| 4 4| 6 5| 7 6| 7 5 SD of max/min temps(F)
TMP 50| 75 43| 77 51| 81 51| 72 47| 66 47| 64 44| 66 44 Temperature(F)
TSD 1| 3 2| 2 3| 1 2| 6 2| 7 3| 8 6| 8 5 SD of temp(F)
DPT 40| 27 30| 22 24| 26 32| 29 36| 35 36| 35 34| 33 33 Dew point temp(F)
DSD 3| 3 3| 5 4| 4 4| 8 5| 8 5| 8 6| 8 7 Dew point temp SD(F)
WBG 46| 60 40| 61 43| 64 45| 58 43| 55 43| 54 41| 55 41 Wet bulb temp(F)
SKY 6| 6 5| 5 6| 20 45| 20 43| 61 70| 40 43| 31 39 Sky cover(%)
SSD 6| 19 4| 5 5| 22 17| 18 27| 26 20| 25 26| 22 33 Sky cover SD(%)
WDR 23| 28 19| 29 19| 23 20| 24 21| 25 21| 26 26| 28 26 Wind dir (deg)
WSP 5| 10 3| 3 3| 9 8| 12 12| 12 13| 11 6| 7 4 Wind spd (kts)
WSD 1| 2 1| 1 1| 2 2| 3 3| 3 4| 3 3| 3 3 Wind spd SD(kts)
GST 7| 16 5| 7 5| 16 9| 19 15| 21 17| 18 7| 12 6 Wind gust(kts)
GSD 2| 3 1| 2 1| 3 3| 4 4| 5 7| 5 4| 4 3 Wind gust SD(kts)
P12 1| 0 1| 0 0| 0 1| 18 25| 18 45| 43 40| 28 17 -99-99 12-hr PoP(%)
Q12 0| 0 0| 0 0| 0 0| 0 2| 0 2| 5 8| 0 0 12-hr QPF(.01in)
Q24 | 0| 0| 0| 2| 2| 13| 0 9 24-hr QPF(.01in)
DUR 0| 0 0| 0 0| 0 0| 0 0| 0 1| 1 3| 0 0 Duration of precip(hrs)
T12 2| 2 1| 0 1| 2 2| 12 9| 5 7| 9 10| 12 8 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| 0 0| 0 0| 18 13| 25 46| 27 21| 15 20 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 99|100 71| 96 104|109 97| 98 87| 95 87| 91 77| 90 84 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 3| 54 2| 55 7| 50 5| 49 7| 30 3| 34 5| 49 6 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
SLKO3 NBM V5.0 NBX GUIDANCE 8/28/2026 1600 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 200 212|224 236|248 260 Forecast Hour
TXN 71 44| 75 47| 79 49 Max/Min Temp(F)
XND 8 6| 9 6| 8 6 SD of max/min temps(F)
TMP 70 47| 74 50| 77 52 Temperature(F)
TSD 9 5| 9 5| 8 5 SD of temp(F)
DPT 31 31| 31 31| 30 32 Dew point temp(F)
DSD 8 7| 7 7| 8 7 Dew point temp SD(F)
WBG 57 42| 60 43| 62 45 Wet bulb temp(F)
SKY 16 19| 28 30| 19 33 Sky cover(%)
SSD 13 16| 31 27| 9 17 Sky cover SD(%)
WDR 24 24| 27 32| 25 21 Wind dir (deg)
WSP 5 3| 4 3| 5 4 Wind spd (kts)
WSD 3 3| 3 2| 3 3 Wind spd SD(kts)
GST 10 5| 9 5| 9 5 Wind gust(kts)
GSD 5 4| 4 2| 4 3 Wind gust SD(kts)
P12 15 3| 5 5| 3 5 12-hr PoP(%)
Q12 0 0| 0 0| 0 0 12-hr QPF(.01in)
Q24 0| 0| 0 24-hr QPF(.01in)
DUR 0 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 12 0| 13 2| 4 2 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 95 86|100 95|106 103 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 21 18| 33 17| 33 19 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
SLKO3 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| 77 41| 78 49| 83 50| 76 45| 68 43| 66 39| 67 41| 71 44| 71 Mean min/max temp(F)
TXNSD 3| 3 3| 3 4| 2 4| 4 4| 6 4| 7 6| 7 5| 8 6| 8 SD min/max temp(F)
TXNP1 45| 73 38| 74 45| 81 46| 70 41| 60 38| 58 33| 58 34| 60 36| 60 10th percentile min/max temp(F)
TXNP2 46| 75 39| 77 46| 82 47| 73 43| 63 40| 61 35| 62 37| 65 40| 65 25th percentile min/max temp(F)
TXNP5 48| 78 40| 79 47| 84 50| 77 45| 68 42| 65 38| 66 40| 69 45| 69 50th percentile min/max temp(F)
TXNP7 52| 79 43| 80 53| 84 54| 79 47| 73 45| 70 43| 72 45| 79 47| 79 75th percentile min/max temp(F)
TXNP9 54| 80 45| 81 54| 85 55| 81 50| 78 49| 73 48| 78 48| 82 51| 82 90th percentile min/max temp(F)
WSPP1 3| 7 2| 3 2| 6 4| 7 6| 7 4| 4 2| 3 2| 3 2| 3 10th percentile wnd(kts)
WSPP2 4| 8 2| 3 3| 7 5| 9 8| 9 7| 7 3| 5 3| 4 3| 4 25th percentile wnd(kts)
WSPP5 5| 9 3| 3 3| 8 7| 10 10| 10 10| 9 5| 6 4| 5 3| 5 50th percentile wnd(kts)
WSPP7 6| 10 3| 4 4| 10 9| 12 12| 13 13| 11 7| 9 6| 8 5| 7 75th percentile wnd(kts)
WSPP9 6| 11 4| 5 5| 10 10| 14 13| 15 15| 13 11| 11 8| 10 8| 9 90th percentile wnd(kts)
W24P1 | 11 | 11 | 6 | 10 | 11 | 12 | 10 | 7 | 6 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 12 | 12 | 6 | 11 | 13 | 13 | 12 | 8 | 7 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 13 | 13 | 7 | 13 | 15 | 16 | 14 | 11 | 9 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 15 | 14 | 8 | 13 | 17 | 18 | 17 | 14 | 12 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 15 | 15 | 9 | 14 | 18 | 21 | 19 | 15 | 16 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 18 | 17 | 8 | 16 | 17 | 19 | 16 | 10 | 9 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 20 | 18 | 9 | 19 | 19 | 22 | 19 | 12 | 11 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 21 | 21 | 10 | 21 | 23 | 25 | 23 | 17 | 13 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 23 | 22 | 11 | 22 | 27 | 31 | 28 | 22 | 20 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 24 | 24 | 13 | 25 | 30 | 36 | 34 | 25 | 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| 0| 0| 0| 0| 0| 0| 0| 25th percentile 24hr QPF(1/100in)
Q24P5 | 0| 0| 0| 0| 0| 3| 0| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 0| 0| 0| 3| 13| 33| 6| 0| 75th percentile 24hr QPF(1/100in)
Q24P9 | 0| 0| 0| 9| 36| 81| 32| 9| 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 015|009 017|009 012|005 011|008 014|008 012|009 013|008 011|008 013|009 10th percentile MSLP(mb)
SLPP2 016|010 018|010 012|006 012|008 014|010 013|011 014|010 014|011 015|010 25th percentile MSLP(mb)
SLPP5 016|011 019|011 014|007 014|009 015|011 015|012 017|013 018|013 018|012 50th percentile MSLP(mb)
SLPP7 016|011 020|012 015|008 015|010 017|014 018|014 018|015 020|015 020|014 75th percentile MSLP(mb)
SLPP9 017|012 020|013 016|009 016|012 018|015 020|015 022|018 022|017 022|016 90th percentile MSLP(mb)