Latest ZFP from WFO RIW

		
National Weather Service Local Forecast for Star Valley Ranch
Updated: 11 Jul 22:07 pm MDT

Tonight... Clear, with a low around 50. East northeast wind
around 6 mph becoming light and variable. 

Sunday... Sunny, with a high near 82. Light and variable wind
becoming west 8 to 13 mph in the afternoon. 

Sunday Night... Clear, with a low around 49. West wind 9 to 14
mph becoming light and variable  in the evening. 

Monday... Mostly sunny, with a high near 74. Calm wind becoming
west 5 to 7 mph in the afternoon. 

Monday Night... Mostly clear, with a low around 45. West wind 5
to 7 mph becoming calm  in the evening. 

Tuesday... Sunny, with a high near 72. Calm wind becoming west
5 to 7 mph in the afternoon. 

Tuesday Night... Clear, with a low around 45. West wind around
6 mph becoming calm  after midnight. 

Wednesday... Sunny, with a high near 76.

Wednesday Night... Mostly clear, with a low around 47.

Thursday... Sunny, with a high near 80.

Thursday Night... Partly cloudy, with a low around 49.

Friday... A slight chance of showers and thunderstorms.  Mostly
sunny, with a high near 81.

Friday Night... A slight chance of showers and thunderstorms. 
Partly cloudy, with a low around 49.

Saturday... Mostly sunny, with a high near 82.

		

Latest AFD from WFO RIW

		National Weather Service Riverton WY
1032 PM MDT Sat Jul 11 2020

.SHORT TERM...This afternoon through Sunday night
Issued at 1034 AM MDT Sat Jul 11 2020

Hot and dry conditions will return once again this afternoon,
although winds will be light for much of the area. Gusty winds up to
25 mph will occur this afternoon over the Wind Corridor and the
western mountains, but nothing like Friday. Elevated fire conditions
will also remain in place, due to the hot temps and low RH's. Apart
from high clouds streaming over central and southern portions today,
skies will be mostly clear.

Hot and dry conditions, with mostly clear skies, will continue
Sunday. Another longwave trough will begin to dig over the PACNW.
This, in turn, will turn the flow aloft more southwesterly. Winds
will increase once again over the forecast area. West to northwest
winds 20 to 25 mph will occur across much of the area. Gusts up to
35 mph will occur over central and southern portions. This will lead
to elevated to critical fire conditions again. A Fire Weather Watch
will remain in effect for central portions Sunday afternoon. Any
precipitation chances will be confined to the southern half of
Sweetwater County. These will likely be dry thunderstorms, with
strong gusty winds, due to the critically low RH's.

.LONG TERM...Monday through Saturday

On Monday a cold front associated with a trough over the far NW
CONUS will bring a relief from the heat. This will be particularly
noticeable across northern Wyoming where many locations will see
high temperatures 20 degrees cooler than on Sunday. Isolated showers
are likely during the afternoon and evening, with the best chances
across eastern portions of the CWA Monday night as the stronger push
of the front surges south. Another round of showers looks probable
across eastern areas Tuesday afternoon, but most locations will
remain dry both Monday and Tuesday. Tuesday will likely be the
coolest day of the week, with a gradual warming trend beginning
Wednesday as relatively dry zonal flow sets up over the region.
While conditions will remain dry through the week at most locations,
the lack of stronger winds after Tuesday should help to mitigate
fire weather concerns.

&&

.AVIATION...For the 06Z TAFS through 06Z Monday
Issued at 1025 PM MDT Sat Jul 11 2020

VFR conditions will occur through the period. A gusty wind will
develop at many sites by 18Z and continue through 01Z Monday. Wind
gusts to 30 knots will occur. Isolated showers or storms will occur
in the far south after 22Z through 06Z Monday. Will include VCSH at
KRKS at 23Z.

&&

.FIRE WEATHER...
Issued at 1034 AM MDT Sat Jul 11 2020

Hot and dry conditions will continue across the area today.
Humidity will be critically low for most zones, with far western
zones dropping into the middle to upper teens. Winds will be much
lighter today, although gusty winds of 20 to 25 mph will occur in
zones 286, 288 and 289. This will keep fire conditions elevated
over the area. RH recovery will be poor for most locations
tonight, with the exception of the western valleys and zones
280/281. Hot and dry conditions return Sunday, as winds increase
across the area again. A Haines Index of 5 to 6 will be in place
across most of the area Sunday.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from Sunday afternoon through Sunday evening for
WYZ280>283-285-288-300.

&&
		

Latest GFS MOS for JAC

		KJAC   GFS MOS GUIDANCE    7/12/2020  0000 UTC
DT /JULY 12            /JULY 13                /JULY 14          /
HR   06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 18 00
X/N                    82          45          73          40    72
TMP  58 52 47 61 75 80 78 68 55 49 47 59 68 70 71 61 50 45 41 63 70
DPT  42 41 40 41 39 33 32 34 36 37 39 40 38 37 36 35 35 35 35 36 31
CLD  CL CL CL CL CL CL CL CL CL CL BK BK BK BK SC CL CL CL CL CL FW
WDR  01 01 01 20 20 21 22 21 28 33 35 20 21 23 25 25 02 01 01 20 25
WSP  04 06 03 01 16 20 18 14 06 04 08 09 15 16 13 10 07 06 03 08 09
P06         0     0     0     0     0     0     1     0     1  1  1
P12                     0           0           1           1     2
Q06         0     0     0     0     0     0     0     0     0  0  0
Q12                     0           0           0           0     0
T06      0/ 1  0/ 0  4/ 7  2/ 4  2/ 2  1/ 1 29/ 5 16/ 3  1/ 0 14/ 0
T12            2/ 2        4/ 7        3/ 4       32/ 5     1/ 0
CIG   8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8  8
VIS   7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7
OBV   N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N  N




376
FOUS25 KWNO 120000

-----------------

KJAC   GFSX MOS GUIDANCE   7/11/2020  1200 UTC
FHR  24  36| 48  60| 72  84| 96 108|120 132|144 156|168 180|192
     SUN 12| MON 13| TUE 14| WED 15| THU 16| FRI 17| SAT 18|SUN CLIMO
N/X  42  82| 47  74| 40  72| 39  75| 42  79| 45  84| 45  82| 49 43 79
TMP  43  78| 48  71| 41  70| 40  72| 43  77| 45  81| 46  78| 50
DPT  36  33| 38  34| 34  30| 36  34| 38  36| 40  38| 41  40| 44
CLD  CL  CL| PC  PC| PC  PC| CL  PC| PC  CL| CL  CL| CL  CL| PC
WND   9  20| 20  14| 14  10|  9  14| 10   8|  8  11|  9   8|  7
P12   0   0|  1   3|  3   1|  3   4|  7   8|  8   9|  9  11| 28999999
P24       0|      3|      3|      7|     10|     11|     15|      999
Q12   0   0|  0   0|  0   0|  0   0|  0   0|  0   0|       |
Q24       0|      0|      0|      0|      0|      0|       |
T12   2   9|  3  31| 16  10|  8  11| 11  14| 14  23| 18  24| 22
T24        |  9    | 31    | 10    | 13    | 19    | 32    | 38