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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Wed Apr 1 2026
VAZ024-020800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
832 PM EDT Wed Apr 1 2026
Date 04/01/26 Thu 04/02/26 Fri 04/03/26 Sat
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 59 85 60 84 60
TEMP 65 64 61 61 74 83 84 77 70 66 62 61 73 81 83 77 69 65 62 61
DEWPT 60 58 57 58 63 61 59 58 57 56 55 56 58 57 56 55 55 55 56 57
MIN/MAX RH 93 43 84 39 88
RH 84 81 87 90 69 47 43 52 63 70 78 84 59 44 40 47 61 70 81 87
WIND DIR N N N NE S S S S S S S S S S S S S SW SW SW
WIND SPD 0 0 0 1 2 6 8 4 3 3 2 2 5 6 6 3 2 2 2 2
WIND GUST 18 16 17 17 13
CLOUDS B1 SC SC SC FW SC FW FW FW SC SC SC SC SC SC B1 SC B1 SC SC
CLOUDS(%) 61 27 28 32 18 43 15 14 18 30 32 39 30 41 46 53 48 51 33 26
VSBY 10 10 9 7 8 6 7 7 10 10 10 10 8 8 8 8 8 10 10 7
POP 12HR 50 20 5 10 5
RAIN SHWRS IS
TSTMS IS
MIX HGT <1 <1 <1 <1 2 6 6 1 1 1 1 <1 3 6 6 1
T WIND DIR SW S SW SW SW S S S S S SW SW SW SW SW S
T WIND SPD 6 3 3 2 8 13 17 8 8 11 11 10 11 10 11 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 2 25 97122 4 4 5 5 12 49 72 75 4
MAX LVORI 4 5 7 6 3 1 1 2 3 3 4 4 1 1 1 2
STABILITY F F G A B B B F G G G B B B B F
CEILING 4600 None None None None None None None None
STA PRES 28.62 28.66 28.72 28.68 28.73 28.74 28.76 28.69
Date 04/04Sun 04/05/26Mon 04/06/26Tue 04/07/26Wed 04/08/26
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 85 60 72 40 66 39 64 34 61
TEMP 83 76 67 62 68 62 47 41 63 58 44 41 62 55 41 36 58 53
DEWPT 59 55 56 56 53 41 34 30 29 29 31 32 30 27 28 24 24 26
RH 44 48 68 81 59 46 60 65 27 33 60 70 30 34 59 61 27 35
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 SC B1 OV B2 SC FW FW FW FW FW FW SC FW FW CL FW
POP 12HR 30 40 80 20 0 0 5 5 5
RAIN SHWRS SC IS SC O NM IS
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