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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Tue Apr 14 2026
VAZ018-150800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
431 PM EDT Tue Apr 14 2026
Date 04/14/26 Wed 04/15/26 Thu 04/16/26 Fri
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 63 88 64 87 62
TEMP 81 73 67 64 63 64 78 86 87 77 71 67 64 65 78 84 86 77 69 65 63 63
DEWPT 51 52 52 53 52 51 53 51 50 49 47 47 48 50 51 50 49 47 48 48 51 55
MIN/MAX RH 68 27 59 28 74
RH 35 48 59 67 67 63 42 30 28 37 42 49 56 58 39 31 28 35 47 54 65 75
WIND DIR W W W W W W W W SW W W W W W W SW SW W W W W W
WIND SPD 9 4 3 3 3 3 5 5 5 3 3 2 3 3 6 6 6 4 4 4 5 5
WIND GUST 17 16 13 14 16 19 17 17 13 13 13 14 16 20 20 19 18 18 19 20 21
CLOUDS SC FW FW FW FW CL FW FW FW B1 SC B1 B1 SC SC B1 SC SC SC B1 B1 FW
CLOUDS(%) 47 15 10 22 13 0 12 10 21 54 49 55 56 42 42 52 34 45 45 51 51 25
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 30
RAIN SHWRS IS IS SC SC IS
MIX HGT 5 <1 <1 <1 <1 <1 3 6 7 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR W W SW W W W W W SW SW SW W W W W SW W W
T WIND SPD 17 12 5 5 4 5 17 12 12 5 5 4 5 5 20 16 19 16
DISPERSION VP VP VP VP VP VP VP VP VP VP VP PR
ADI 102 6 3 3 2 6 64 92107 3 3 2 3 6 90114149 11
MAX LVORI 1 2 3 3 3 3 1 1 1 2 2 2 3 3 1 1 1 2
STABILITY B F G G G A A A A F F F F A B B B E
CEILING None None None None None None None None None
STA PRES 27.85 27.84 27.86 27.82 27.80 27.79 27.78 27.72
Date 04/17Sat 04/18/26Sun 04/19/26Mon 04/20/26Tue 04/21/26
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 84 58 90 53 68 39 61 37 68
TEMP 81 74 60 61 87 80 66 55 67 57 46 40 58 53 40 40 65 59
DEWPT 51 47 47 49 49 50 52 49 39 30 25 23 22 20 24 26 26 27
RH 35 38 62 65 27 35 61 80 36 35 43 50 25 27 52 57 23 29
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC FW SC B1 B1 B1 B1 FW FW CL CL CL CL FW FW
POP 12HR 20 5 10 30 50 10 5 5 5
RAIN SHWRS IS SC SC SC SC
$$
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