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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
320 PM EDT Thu May 7 2026
VAZ018-080800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
320 PM EDT Thu May 7 2026
Date 05/07/26 Fri 05/08/26 Sat 05/09/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 40 71 50 75 52
TEMP 63 56 50 44 41 45 61 68 69 60 53 51 50 54 66 72 74 67 59 55 53 57
DEWPT 43 38 33 31 30 33 36 36 36 39 38 38 39 43 48 47 47 48 47 47 47 50
MIN/MAX RH 65 29 66 38 82
RH 48 51 52 60 65 62 39 31 30 46 57 61 66 66 52 41 38 50 64 74 80 77
WIND DIR NW NW NW NW NW NW W W W SW SW SW SW SW SW W W W W W W W
WIND SPD 6 5 4 3 3 2 3 5 5 2 3 3 3 3 6 9 9 3 2 2 2 2
WIND GUST 19 23 19 13 14 16 17 13 14 14 17 23 25 25 17 12 12 12
CLOUDS SC FW CL CL CL CL CL CL FW FW FW SC B1 B1 SC SC FW FW FW SC SC FW
CLOUDS(%) 38 7 5 2 3 2 2 4 6 12 15 38 69 69 38 38 24 12 23 26 28 24
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 9 4
POP 12HR 0 0 0 0 0
MIX HGT 5 1 <1 <1 <1 <1 5 7 7 <1 <1 <1 <1 <1 3 6 6 1
T WIND DIR W NW NW NW NW W W W W S S SW SW SW S W W W
T WIND SPD 10 19 10 6 4 3 14 13 11 5 8 6 5 11 12 23 24 17
DISPERSION PR VP VP VP VP VP VP VP VP VP VP VP
ADI 61 9 5 3 2 4 90105 90 3 4 3 3 11 51100155 8
MAX LVORI 1 2 2 3 3 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY B F F G G A A B B G G G F C B C B G
CEILING None None None None None 4300 None None None
STA PRES 27.69 27.74 27.75 27.67 27.67 27.60 27.58 27.59
Date 05/10Mon 05/11/26Tue 05/12/26Wed 05/13/26Thu 05/14/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 79 55 67 42 69 50 71 51 72
TEMP 78 69 59 56 64 58 44 45 66 60 51 53 68 62 53 53 69 64
DEWPT 50 52 50 48 43 36 34 34 35 37 37 41 48 48 46 46 48 46
RH 37 55 72 74 46 44 68 65 32 42 59 64 49 60 77 77 47 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B2 B1 SC FW CL FW FW SC B1 B1 B1 B1 SC SC SC
POP 12HR 20 50 30 0 0 20 50 30 20
RAIN SHWRS IS IS SC SC IS SC SC SC IS IS
TSTMS IS IS
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
FRZG RAIN......Freezing rain
FRZG DRZL......Freezing drizzle
COVERAGE...
IS.............Isolated
SC.............Scattered
NM.............Numerous
O..............Occasional
S..............Slight chance
C..............Chance
L..............Likely
WD.............Widespread
D..............Definite
AR.............Areas
PA.............Patchy
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions