NBM Guidance for OWYHEE RESERVOIR STA (K28U)
43.4248N 117.3457W
Elevation 2687 ft
HOURLY TO 24 HOURS:
K28U 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 78 81 85 87 89 90 89 88 88 85 81 78 77 75 73 72 71 69 67 65 62 63 68 72 75 Temperature(F)
TSD 2 2 2 2 2 2 3 3 2 2 3 3 3 4 4 4 5 5 5 5 4 3 3 3 2 SD of temp(F)
DPT 42 42 43 42 41 40 40 39 41 43 45 47 47 48 47 46 45 44 44 44 43 43 43 43 42 Dew point temp(F)
DSD 4 4 3 3 3 3 4 5 5 6 7 7 6 6 5 5 5 5 4 4 4 4 4 3 3 Dew point temp SD(F)
WBG 66 69 71 72 73 73 71 71 71 69 67 65 64 64 62 61 60 59 58 57 55 55 59 62 65 Wet bulb temp(F)
SKY 58 64 78 78 63 76 76 89 83 92 86 82 65 59 71 73 60 51 52 45 50 52 32 21 14 Sky cover(%)
SSD 30 28 25 17 20 23 16 14 17 9 16 21 26 26 30 36 34 31 33 32 30 31 30 25 23 Sky cover SD(%)
WDR 28 25 23 20 19 20 20 22 21 18 18 19 19 20 21 23 23 25 24 24 25 25 25 28 28 Wind dir (deg)
WSP 3 3 5 7 8 8 8 8 7 7 9 13 17 17 17 15 12 10 7 5 5 3 4 5 6 Wind spd (kts)
WSD 2 3 2 2 3 3 3 3 4 6 6 7 7 6 5 5 4 4 3 3 3 2 2 2 2 Wind spd SD(kts)
GST 6 7 10 13 15 16 16 15 13 15 16 24 27 29 29 26 23 19 13 10 9 7 8 9 10 Wind gust(kts)
GSD 3 3 3 3 3 3 3 4 5 9 10 10 10 10 9 8 8 7 6 5 4 4 3 3 3 Wind gust SD(kts)
P01 0 0 0 0 0 1 1 1 2 4 6 5 2 1 1 1 1 1 1 1 1 2 3 2 1 1-hr PoP(%)
P06 4 6 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 1 1 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 113114115117118119120122122122122121116113112111113111111110110109107106105 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 130130230230230230230170160150140150170160150180160-88-88-88-88-88-88-88-88 Ceiling height*
MVC 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 Prob cig<=3000ft(%) MVFR
IFC 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 Prob cig<1000ft(%) IFR
LIC 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 Prob cig<500ft(%) LIFR
LCB 100100170170170170180140130130130130140140130150140150110100110110 90100 90 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
MVV 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 Prob vsby<=5mi(%) MVFR
IFV 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 Prob vsby<3mi(%) IFR
LIV 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 Prob vsby<1mi(%) LIFR
MHT 24 31 40 68 90101108 95 60 12 7 7 5 5 5 7 5 6 5 5 5 4 12 25 42 MixHgt 100s feet AGL
TWD 22 22 22 22 22 22 23 24 23 21 20 20 21 21 22 23 24 25 24 22 25 24 25 25 24 Transport wind dir
TWS 4 4 5 8 12 13 12 10 8 7 9 13 17 17 17 15 12 11 10 8 7 6 6 6 6 Transport wind spd(kts)
SOL 48 53 70 70 73 64 51 34 13 4 1 0 0 0 0 0 0 0 0 0 0 6 16 31 49 Solar rad (10s W/m2)
3-HOURLY TO 60 HOURS:
K28U 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 62 86 50 80 52 Max/Min Temp(F)
XND 4 3 6 3 5 SD of max/min temps(F)
TMP 89 88 81 75 71 65 68 78 85 82 73 65 59 53 56 68 77 79 68 61 57 54 60 Temperature(F)
TSD 2 3 3 4 5 5 3 2 2 2 3 5 5 4 2 2 3 2 2 2 2 2 2 SD of temp(F)
DPT 41 39 45 48 45 44 43 42 41 39 36 38 37 37 37 33 28 24 28 30 32 33 33 Dew point temp(F)
DSD 3 5 7 6 5 4 4 3 3 5 7 6 4 3 3 3 4 4 5 7 6 6 6 Dew point temp SD(F)
WBG 73 71 67 64 60 57 59 68 71 67 60 55 51 47 50 60 65 63 55 51 49 48 52 Wet bulb temp(F)
SKY 63 89 86 59 60 45 32 9 4 24 45 13 41 15 3 1 13 12 9 6 13 8 5 Sky cover(%)
SSD 20 14 16 26 34 32 30 16 19 26 33 10 40 10 3 1 25 15 8 5 7 8 8 Sky cover SD(%)
WDR 19 22 18 20 23 24 25 25 24 30 34 35 35 28 27 28 29 31 7 14 27 24 3 Wind dir (deg)
WSP 8 8 9 17 12 5 4 6 10 14 10 9 3 1 1 3 4 5 3 1 0 0 1 Wind spd (kts)
WSD 3 3 6 6 4 3 2 2 3 4 4 3 3 2 2 2 2 2 1 1 1 1 1 Wind spd SD(kts)
GST 15 15 16 29 23 10 8 11 18 21 18 16 8 3 3 6 9 11 5 3 2 2 3 Wind gust(kts)
GSD 3 4 10 10 8 5 3 3 3 4 6 5 4 3 3 3 3 2 2 2 2 1 1 Wind gust SD(kts)
P06 4 6 1 3 3 2 1 0 0 0 0 6-hr PoP(%)
P12 6 3 6 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 2 5 3 1 0 0 0 1 3 4 2 1 0 0 0 0 0 0 0 0 0 0 3-hr Tstm prob(%)
T06 2 5 1 0 4 5 1 0 0 1 0 6-hr Tstm prob(%)
T12 5 4 5 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 11 4 4 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 120120120110110110110110110110110 97 89 74 70 73 81 85 87 88 94 96 99 Snow level 100s feet MSL
I06 0 0 0 0 0 0 0 0 0 0 0 6-hr ice(1/100in)
CIG 230170140160160-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88-88 Ceiling height*
IFC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Prob cig<1000ft(%) IFR
LCB 170140130140140100 90 90100100140 60 60 43250220200170170170140140150 Lowest cloud base*
VIS 100100100100100100100100100100100100100100100100100100100100100100100 Visibility*
IFV 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Prob vsby<3mi(%) IFR
MHT 90 95 7 5 5 5 12 57 96 88 6 16 10 5 13 43 59 65 5 5 5 4 5 MixHgt 100s feet AGL
TWD 22 24 20 21 24 22 25 24 25 26 34 36 35 30 28 27 27 28 7 12 4 6 7 Transport wind dir
TWS 12 10 9 17 12 8 6 6 13 14 11 13 8 7 6 7 9 7 6 5 5 5 4 Transport wind spd(kts)
SOL 73 34 1 0 0 0 16 52 80 45 4 2 0 0 19 56 82 58 15 7 0 0 7 Solar rad (10s W/m2)
DAILY TO 7 DAYS:
K28U 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 62| 86 50| 80 52| 90 59| 90 58| 82 53| 78 47| 76 47 49 85 Max/Min Temp(F)
XND 4| 3 6| 3 5| 3 3| 2 4| 5 6| 8 8| 9 8 SD of max/min temps(F)
TMP 65| 82 53| 79 54| 87 61| 86 59| 80 57| 75 52| 74 51 Temperature(F)
TSD 5| 2 4| 2 2| 2 2| 3 3| 6 4| 9 6| 9 6 SD of temp(F)
DPT 44| 39 37| 24 33| 30 36| 30 39| 33 40| 39 42| 39 42 Dew point temp(F)
DSD 4| 5 3| 4 6| 4 6| 7 7| 10 9| 10 6| 8 5 Dew point temp SD(F)
WBG 57| 67 47| 63 48| 69 53| 68 52| 64 52| 62 49| 62 48 Wet bulb temp(F)
SKY 45| 24 15| 12 8| 13 45| 25 49| 58 82| 45 61| 26 26 Sky cover(%)
SSD 32| 26 10| 15 8| 12 25| 17 22| 26 18| 19 26| 26 12 Sky cover SD(%)
WDR 24| 30 28| 31 24| 6 22| 23 23| 24 25| 29 25| 30 26 Wind dir (deg)
WSP 5| 14 1| 5 0| 8 2| 14 8| 15 7| 12 2| 9 1 Wind spd (kts)
WSD 3| 4 2| 2 1| 3 2| 5 3| 4 4| 4 4| 4 3 Wind spd SD(kts)
GST 10| 21 3| 11 2| 14 4| 22 14| 23 15| 20 5| 17 3 Wind gust(kts)
GSD 5| 4 3| 2 1| 3 4| 5 6| 5 7| 5 6| 5 4 Wind gust SD(kts)
P12 6| 3 6| 0 0| 0 1| 14 7| 3 11| 30 24| 18 9 -99-99 12-hr PoP(%)
Q12 0| 0 0| 0 0| 0 0| 0 0| 0 0| 1 0| 0 0 12-hr QPF(.01in)
Q24 | 0| 0| 0| 0| 0| 1| 0 7 24-hr QPF(.01in)
DUR 0| 0 0| 0 0| 0 0| 0 0| 0 0| 1 0| 0 0 Duration of precip(hrs)
T12 5| 4 5| 0 1| 1 3| 5 6| 5 6| 7 8| 10 10 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| 11 0| 0 0| 0 3| 6 2| 3 16| 19 20| 17 5 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 110|112 74| 85 96|109 110|106 93| 96 90| 95 84| 89 88 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 2| 44 1| 54 6| 49 5| 44 5| 45 4| 23 3| 47 4 Solar rad (10s W/m2)
DAY 8, 9 AND 10:
K28U 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 78 50| 81 54| 85 55 Max/Min Temp(F)
XND 8 7| 8 7| 7 6 SD of max/min temps(F)
TMP 76 52| 79 55| 83 57 Temperature(F)
TSD 7 6| 7 5| 7 5 SD of temp(F)
DPT 39 42| 37 41| 37 41 Dew point temp(F)
DSD 9 6| 8 6| 8 6 Dew point temp SD(F)
WBG 63 48| 65 50| 67 51 Wet bulb temp(F)
SKY 27 26| 18 33| 21 34 Sky cover(%)
SSD 23 17| 11 18| 10 12 Sky cover SD(%)
WDR 33 24| 2 25| 30 26 Wind dir (deg)
WSP 8 1| 7 0| 8 0 Wind spd (kts)
WSD 4 2| 3 2| 3 2 Wind spd SD(kts)
GST 15 3| 13 2| 15 2 Wind gust(kts)
GSD 4 4| 3 3| 4 3 Wind gust SD(kts)
P12 8 7| 5 9| 4 5 12-hr PoP(%)
Q12 0 0| 0 2| 0 0 12-hr QPF(.01in)
Q24 0| 2| 0 24-hr QPF(.01in)
DUR 0 0| 0 1| 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 7 3| 4 1| 3 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 92| 99 96|104 104 Snow level 100s feet MSL
I12 0 0| 0 0| 0 0 12-hr ice(1/100in)
SOL 20 18| 35 18| 34 19 Solar rad (10s W/m2)
STANDARD DEVIATION AND THRESHOLD PROBABILITIES:
K28U 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 63| 86 51| 80 52| 90 59| 90 58| 82 53| 78 47| 76 47| 78 50| 78 Mean min/max temp(F)
TXNSD 4| 3 6| 3 5| 3 3| 2 4| 5 6| 8 8| 9 8| 8 7| 8 SD min/max temp(F)
TXNP1 58| 83 44| 77 47| 86 56| 87 52| 76 45| 67 39| 66 39| 70 42| 70 10th percentile min/max temp(F)
TXNP2 60| 84 47| 79 48| 88 57| 88 56| 78 48| 72 41| 69 42| 73 44| 73 25th percentile min/max temp(F)
TXNP5 64| 86 51| 80 50| 90 59| 90 59| 82 56| 78 45| 73 45| 77 48| 77 50th percentile min/max temp(F)
TXNP7 66| 88 57| 82 58| 91 63| 91 61| 87 58| 83 53| 81 52| 82 57| 82 75th percentile min/max temp(F)
TXNP9 69| 89 59| 84 59| 93 64| 92 63| 89 61| 90 59| 90 60| 88 59| 88 90th percentile min/max temp(F)
WSPP1 1| 7 0| 3 0| 5 0| 6 1| 6 1| 6 0| 4 0| 4 0| 5 10th percentile wnd(kts)
WSPP2 3| 9 1| 4 0| 6 0| 8 3| 10 2| 8 1| 6 0| 5 0| 6 25th percentile wnd(kts)
WSPP5 5| 13 1| 5 0| 8 2| 12 5| 13 4| 11 2| 9 1| 8 1| 7 50th percentile wnd(kts)
WSPP7 7| 15 2| 6 1| 10 4| 15 8| 16 8| 13 4| 12 3| 11 3| 9 75th percentile wnd(kts)
WSPP9 9| 17 4| 7 2| 12 6| 18 10| 18 12| 16 8| 15 6| 15 5| 13 90th percentile wnd(kts)
W24P1 | 11 | 13 | 9 | 10 | 11 | 13 | 12 | 9 | 9 10th percentile 24hr sustained wnd exceedance(kts)
W24P2 | 12 | 15 | 9 | 11 | 13 | 15 | 14 | 11 | 10 25th percentile 24hr sustained wnd exceedance(kts)
W24P5 | 16 | 16 | 10 | 12 | 16 | 17 | 15 | 14 | 12 50th percentile 24hr sustained wnd exceedance(kts)
W24P7 | 18 | 18 | 11 | 13 | 18 | 19 | 18 | 17 | 15 75th percentile 24hr sustained wnd exceedance(kts)
W24P9 | 20 | 19 | 12 | 15 | 20 | 21 | 20 | 19 | 18 90th percentile 24hr sustained wnd exceedance(kts)
G24P1 | 18 | 21 | 14 | 15 | 17 | 21 | 19 | 15 | 14 10th percentile 24hr wnd gust exceedance(kts)
G24P2 | 20 | 24 | 15 | 17 | 21 | 24 | 22 | 17 | 16 25th percentile 24hr wnd gust exceedance(kts)
G24P5 | 25 | 27 | 16 | 19 | 25 | 28 | 24 | 22 | 19 50th percentile 24hr wnd gust exceedance(kts)
G24P7 | 30 | 29 | 18 | 21 | 29 | 30 | 28 | 26 | 24 75th percentile 24hr wnd gust exceedance(kts)
G24P9 | 33 | 31 | 20 | 23 | 33 | 33 | 32 | 30 | 28 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| 0| 0| 0| 50th percentile 24hr QPF(1/100in)
Q24P7 | 0| 0| 0| 0| 0| 13| 0| 0| 75th percentile 24hr QPF(1/100in)
Q24P9 | 0| 0| 0| 1| 3| 53| 16| 2| 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 010|006 013|010 010|004 006|004 009|006 009|005 009|006 009|006 010|007 10th percentile MSLP(mb)
SLPP2 010|007 014|010 012|005 008|005 010|007 011|008 011|009 012|009 013|009 25th percentile MSLP(mb)
SLPP5 011|008 015|011 013|006 009|006 011|008 013|010 013|011 015|012 015|013 50th percentile MSLP(mb)
SLPP7 012|008 016|013 014|007 010|007 013|011 014|012 015|014 018|015 019|015 75th percentile MSLP(mb)
SLPP9 012|009 017|013 016|009 012|008 014|012 016|014 019|016 021|018 021|017 90th percentile MSLP(mb)