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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EDT Tue Apr 14 2026
VAZ018-142000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
901 AM EDT Tue Apr 14 2026
Date Tue 04/14/26 Wed 04/15/26 Thu 04/16/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 85 61 89 61 87
TEMP 72 79 83 74 68 64 63 64 79 87 88 78 71 67 64 64 78 85 86 76
DEWPT 48 48 50 53 53 53 51 49 51 51 50 49 47 47 48 50 52 50 50 49
MAX/MIN RH 30 67 27 63 28
RH 42 34 32 48 59 67 65 58 38 29 27 36 42 49 56 60 40 30 29 39
WIND DIR W W W W W W W W W SW SW SW W W W W W SW SW W
WIND SPD 5 9 9 4 4 4 4 4 5 5 5 4 3 3 3 3 5 6 6 5
WIND GUST 16 14 14 14 16 18 13 18 18 19 17
CLOUDS FW FW SC FW FW FW FW FW FW SC SC SC B1 B1 SC SC SC B1 B1 SC
CLOUDS(%) 11 23 45 22 16 16 12 11 15 45 34 48 51 51 46 38 50 60 51 36
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 5 0 5
RAIN SHWRS IS
MIX HGT 4 6 6 <1 <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 4 6 8 <1
T WIND DIR W W W SW SW W W W W SW SW SW SW W W W W W W W
T WIND SPD 21 16 14 10 5 5 6 6 13 11 16 5 4 5 8 9 21 14 18 14
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 97108 98 5 3 3 3 7 47 78126 4 2 3 4 9 99105151 7
MAX LVORI 1 1 1 2 3 3 3 3 1 1 1 2 2 2 3 3 1 1 1 2
STABILITY B B B F F F F A A A A E F F F A A B B F
CEILING None None None None None None None None None
STA PRES 27.87 27.86 27.86 27.86 27.81 27.80 27.78 27.78 27.72
Date Fri 04/17/26Sat 04/18/26Sun 04/19/26Mon 04/20/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 61 84 58 89 56 70 42 65
TEMP 66 64 81 75 60 61 87 79 66 59 68 60 48 43 63 56
DEWPT 49 52 50 46 47 49 50 50 51 49 39 30 27 26 24 23
RH 54 65 34 36 62 65 28 36 58 69 34 32 44 51 22 27
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW FW SC SC B1 B1 B1 B1 B1 FW FW FW FW
POP 12HR 20 10 0 20 40 40 10 5
RAIN SHWRS IS IS IS SC SC SC SC
TSTMS 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