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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
402 PM EDT Sun Apr 5 2026
VAZ024-060800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
402 PM EDT Sun Apr 5 2026
Date 04/05/26 Mon 04/06/26 Tue 04/07/26 Wed
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 39 66 42 61 32
TEMP 65 57 51 46 42 40 54 64 66 57 51 47 44 43 53 59 61 53 43 38 34 33
DEWPT 45 37 35 32 30 29 30 32 32 32 33 33 33 29 26 19 15 20 21 21 20 19
MIN/MAX RH 65 28 66 16 59
RH 48 47 54 58 62 64 40 30 28 38 50 58 65 57 35 21 16 27 41 50 56 56
WIND DIR W NW NW NW W W W W W W W W NW NW NW NW NW N NE NE NE E
WIND SPD 10 6 6 5 4 3 4 8 8 3 2 2 3 4 6 6 5 2 2 2 2 2
WIND GUST 21 21 20 19 14 14 18 19 13 18
CLOUDS FW SC FW FW CL FW CL FW FW FW FW FW FW FW FW FW CL CL CL FW FW FW
CLOUDS(%) 22 28 11 7 5 6 5 8 9 9 8 9 12 10 6 6 4 3 3 6 11 15
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 4 2 2 1 <1 1 4 7 8 1 <1 1 <1 1 5 7 7 <1
T WIND DIR W NW NW NW NW NW NW W W W NW NW NW N NW NW NW N
T WIND SPD 23 26 17 13 8 13 12 21 25 11 9 9 5 11 12 11 8 3
DISPERSION PR PR PR VP VP VP VP VP VP VP VP VP
ADI 111 12 8 6 4 24 60161200 5 4 4 3 18 73 84 64 2
MAX LVORI 1 2 2 3 3 2 1 1 1 2 2 3 3 2 1 1 1 2
STABILITY B F F F F A A B B G G G G A B B A G
CEILING None None None None None None None None None
STA PRES 28.54 28.60 28.63 28.56 28.63 28.71 28.81 28.82
Date 04/08Thu 04/09/26Fri 04/10/26Sat 04/11/26Sun 04/12/26
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 60 34 67 45 78 50 84 54 85
TEMP 57 53 40 36 64 60 49 48 74 70 54 53 81 75 61 55 81 76
DEWPT 23 29 30 30 38 41 42 44 48 47 47 47 51 50 49 50 52 51
RH 27 39 67 79 38 49 77 86 40 44 77 80 35 41 65 83 37 42
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC SC SC FW SC FW FW SC SC FW SC SC SC SC SC
POP 12HR 0 5 5 10 10 5 10 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