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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
232 PM EDT Fri Apr 3 2026
VAZ024-040800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
232 PM EDT Fri Apr 3 2026
Date 04/03/26 Sat 04/04/26 Sun 04/05/26 Mon
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 60 85 60 71 41
TEMP 83 75 70 66 62 62 76 83 83 75 71 68 66 62 64 69 68 61 53 48 43 41
DEWPT 57 57 56 56 56 57 60 60 58 59 59 59 60 60 59 52 44 38 36 34 32 30
MIN/MAX RH 85 43 93 42 67
RH 41 54 61 70 81 84 58 46 43 58 66 73 81 93 84 55 42 42 52 58 65 65
WIND DIR S S SW SW SW SW SW S S S S S S SW W W W W NW NW NW NW
WIND SPD 6 2 2 2 2 1 3 8 9 5 5 5 6 6 6 8 9 6 5 4 3 2
WIND GUST 12 18 21 20 18 18 20 21 20 19 21 21 20 17 13
CLOUDS SC B1 SC SC SC FW FW SC SC SC SC B2 B2 OV OV B2 B1 SC FW FW CL CL
CLOUDS(%) 45 57 44 34 27 22 22 33 48 42 34 72 72 94 94 87 54 41 23 8 5 4
VSBY 10 10 10 10 10 8 7 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 30 60 90 0
RAIN SHWRS IS IS NM NM O O SC SC
TSTMS IS
MIX HGT 6 1 <1 <1 <1 <1 3 7 5 2 2 2 1 2 2 3 5 3
T WIND DIR SW S SW SW SW SW SW S S S S SW SW SW S W W W
T WIND SPD 12 6 6 5 3 1 5 11 16 10 9 19 19 17 17 11 17 11
DISPERSION VP VP VP VP PR PR PR PR PR PR VP VP
ADI 88 3 3 3 2 1 21 83 64 7 4 13 13 31 33 39 71 8
MAX LVORI 1 2 3 3 5 5 2 1 1 3 3 3 4 4 3 1 1 2
STABILITY B F F G G A B B C E F E E D D C C E
CEILING None None None None None None 2000 1400 16300 None
STA PRES 28.70 28.71 28.69 28.69 28.59 28.56 28.48 28.45 28.43
Date 04/06Tue 04/07/26Wed 04/08/26Thu 04/09/26Fri 04/10/26
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 67 41 61 31 61 36 70 45 77
TEMP 64 58 47 42 58 52 36 33 57 53 41 38 67 62 50 47 75 68
DEWPT 31 32 33 30 21 20 21 20 24 28 30 33 41 42 42 43 48 48
RH 29 37 58 62 23 28 54 58 28 38 65 82 39 48 74 86 38 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW FW CL CL CL FW SC SC SC SC FW FW FW SC SC
POP 12HR 0 0 0 0 0 0 5 5 5
$$
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