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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EDT Tue Apr 14 2026
NCZ006-142000-
RAWS 310801
36.37N 79.29W Elev. 580 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 90 63 93 64 92
TEMP 79 86 88 80 73 70 65 65 83 91 92 83 74 71 67 67 83 90 92 84
DEWPT 56 50 47 53 53 53 53 54 55 53 53 52 51 52 52 54 57 54 52 52
MAX/MIN RH 24 69 26 66 26
RH 45 29 24 39 49 55 65 68 38 28 27 34 44 51 59 63 41 30 26 33
WIND DIR SW SW SW SW SW SW SW SW W SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 3 8 9 4 4 4 3 3 3 5 6 4 4 4 4 4 5 9 9 5
CLOUDS SC FW FW SC FW FW FW FW FW SC SC SC SC SC SC SC B1 B1 SC SC
CLOUDS(%) 38 8 19 28 15 16 9 17 13 27 30 37 33 43 38 44 52 63 49 37
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 0 0 0
MIX HGT 2 7 7 <1 <1 <1 <1 <1 3 7 7 <1 <1 <1 <1 <1 4 7 8 <1
T WIND DIR W SW SW SW SW SW SW SW NW SW SW SW SW SW SW SW W SW SW SW
T WIND SPD 8 10 13 4 6 6 4 4 6 11 17 6 6 6 6 6 12 12 17 4
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 25 77107 2 3 3 2 4 29 94131 3 3 5 3 7 58 93141 2
MAX LVORI 2 1 1 2 2 3 3 3 2 1 1 2 2 2 3 3 1 1 1 2
STABILITY A B B F F F G A A A B F F E F A A B B F
CEILING None None None None None None None None None
STA PRES 29.45 29.44 29.44 29.45 29.39 29.39 29.37 29.38 29.29
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 65 91 60 93 65 81 46 73
TEMP 72 67 88 82 65 63 90 85 73 68 80 71 52 49 70 66
DEWPT 52 55 52 50 52 52 51 52 52 53 47 36 33 31 27 27
RH 49 65 29 33 63 67 26 32 48 59 31 28 48 50 20 23
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW SC FW FW SC B1 B1 B1 B2 B1 FW FW FW FW
POP 12HR 5 5 0 0 10 30 10 5
RAIN SHWRS IS 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