Spot Forecast
Issued by NWS Blacksburg, VA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10
579
FNUS71 KRNK 080251
FWSRNK

Spot Forecast for Row...USFS
National Weather Service Blacksburg VA
1051 PM EDT Sun Jul 7 2024

Forecast is based on forecast start time of 2300 EDT on July 07.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Typical summertime weather pattern expected this week with
hot/humid weather during the day and muggy conditions with little
airflow at night.  There will be a chance for afternoon and
evening thunderstorms each day, beginning Monday, but
wetting will be hit and miss.

Humidity minimums during the day are expected to remain above
50 percent with excellent recovery at night.  Wind will be
light, generally down river late at night and early morning,
and up river during the afternoon and evening.


.REST OF TONIGHT...

Sky/weather.........Partly cloudy (40-60 percent cloud cover).
CWR (0.01 in).......10 percent.
Min temperature.....Around 72.
Max humidity........78 percent.
Wind (20 ft)........Light winds down river.
Mixing height.......500 ft AGL.
Mixing winds........South 1 to 3 mph.
Smoke dispersal.....Poor (600 knot-ft).
LVORI...............4.
ADI.................1.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (EDT)      11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........61  72  65  61  50  48  44
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   10  0   0   10  0   0
Temp............79  78  77  76  75  74  74
RH..............69  72  74  75  76  76  76
20 FT wind dir..S   SE  S   NW  NW  NW  N
20 FT wind spd..2   2   0   1   1   1   1
20 FT wind gust.
Mix hgt (kft)...0.5 0.5 0.5 0.6 0.5 0.5 0.5
Mixng wind dir..SW  S   S   S   S   S   S
Mixng wind spd..2   1   1   2   2   2   2
LVORI...........3   4   4   4   4   4   4
ADI.............1   1   1   1   1   1   1
Haines index....4   4   4   4   3   3   3
VRate mph-ft/1K.1   1   1   1   1   1   1

.MONDAY...

Sky/weather.........Mostly sunny (40-50 percent). Chance of showers
                    and thunderstorms in the afternoon.
CWR (0.01 in).......10 percent increasing to 40 percent.
Max temperature.....Around 92.
Min humidity........55 percent.
Wind (20 ft)........Light winds...up river during the afternoon
                    and evening. Gusty and erratic winds expected
                    near thunderstorms early in the afternoon.
Mixing height.......5800 ft AGL.
Mixing winds........Southwest around 2 mph increasing to 7 to 9
                    mph.
Smoke dispersal.....Poor (900 knot-ft) early in the morning
                    increasing to good (43200 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................1 early in the morning increasing to 61 in the
                    afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........37     39     48     52     48     47
Weather cov.....                            S CHC  CHANCE
Weather type....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                            CHANCE CHANCE
CWR.............0      10     10     10     30     40
Temp............74     77     86     89     90     91
RH..............78     75     66     62     57     56
20 ft wind......NW 1   N 0    E 2    SE 2   SE 4   SE 4
20 ft wind gust.                     4      6      6
Mix hgt (ft)....500    700    2800   4600   5400   5500
Mixing wind......SW 2   W 2    SW 5   SW 7   S 9    S 8
LVORI...........4      4      3      1      1      1
ADI.............1      2      16     39     61     52
Haines index....3      3      4      4      4      4
VRate mph-ft/1K.1      2      12     33     50     42

.MONDAY NIGHT...

Sky/weather.........Mostly cloudy (45-55 percent) then becoming
                    partly cloudy (35-45 percent). Chance of
                    showers and thunderstorms in the evening.
CWR (0.01 in).......30 percent decreasing to 0 percent.
Min temperature.....Around 73.
Max humidity........92 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms early in the evening.
Mixing height.......500 ft AGL.
Mixing winds........South 2 to 8 mph shifting to the northwest
                    around 2 mph after 3 am.
Smoke dispersal.....Fair (22000 knot-ft) early in the evening
                    decreasing to poor (800 knot-ft) late in the
                    night.
LVORI...............5.
ADI.................1 to 25.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........52     34     38     41     47     48
Weather cov.....CHANCE CHANCE S CHC  S CHC
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR NONE   NONE
Tstm cov........CHANCE S CHC  S CHC  S CHC
CWR.............30     30     20     10     0      0
Temp............90     85     79     76     75     73
RH..............56     68     80     87     90     92
20 ft wind......S 4    SE 2   S 2    S 2    SW 1   NW 1
20 ft wind gust.6      4                    2      2
Mix hgt (ft)....3400   900    600    500    500    500
Mixing wind......S 7    S 8    S 5    S 2    SW 2   W 2
LVORI...........2      3      5      6      7      7
ADI.............25     4      2      1      1      1
Haines index....4      4      3      3      3      4
VRate mph-ft/1K.25     7      2      1      1      1

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent). Chance of
                    showers and thunderstorms late in the afternoon.
CWR (0.01 in).......10 percent increasing to 30 percent.
Max temperature.....Around 96.
Min humidity........48 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Mixing height.......6900 ft AGL.
Mixing winds........Light and Variable in the morning, becoming
                    southwest around 5 mph late in the afternoon.
Smoke dispersal.....Poor (0 knot-ft) early in the morning
                    increasing to fair (26500 knot-ft) in the
                    afternoon.
LVORI...............5.
ADI.................0 to 33.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (EDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........48        43        44        52
Weather cov.....                              CHANCE
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........                              CHANCE
CWR.............0         10        10        30
Temp............74        80        91        95
RH..............92        80        57        48
20 FT wind......W 1G2     W 1G2     S 2G4     SE 3G5
Mix hgt (ft)....500       1700      4900      6800
Mixing wind.....NW 1      W 1       W 5       SW 3
LVORI...........8         5         2         2
ADI.............1         3         28        29
Haines index....4         4         4         5
VRate mph-ft/1K.1         2         22        24

$$
Forecaster...Manuel
Requested by...Brent Foltz
Type of request...WILDFIRE
.TAG 2417590.0/RNK
.DELDT 07/07/24
.FormatterVersion 2.0.0
.EMAIL brent.foltz@usda.gov