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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Mon Apr 13 2026
NCZ003-132000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
132 PM EDT Mon Apr 13 2026
Date Mon 04/13/26 Tue 04/14/26 Wed 04/15/26
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 82 57 85 60 88
TEMP 80 81 74 68 62 58 59 74 83 85 79 71 64 60 62 77 86 88 81
DEWPT 50 51 52 50 50 49 50 52 52 52 53 54 53 52 52 52 51 50 50
MAX/MIN RH 33 75 32 75 27
RH 35 35 46 52 65 72 72 46 34 32 41 55 67 75 70 42 30 27 34
WIND DIR SW SW SW SW SW W SW SW SW SW SW SW SW W W W SW SW SW
WIND SPD 10 10 6 5 4 3 3 5 6 8 6 5 4 3 3 4 6 6 6
WIND GUST 21
CLOUDS SC B1 B1 FW FW SC SC SC SC SC FW FW FW SC SC FW FW SC SC
CLOUDS(%) 50 63 63 13 16 31 33 26 26 41 21 15 24 29 31 18 20 42 40
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 10 5 0 0
MIX HGT 6 7 <1 <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR SW W W W SW W SW W SW SW SW SW SW W W W SW SW SW
T WIND SPD 16 12 6 1 2 2 2 8 10 12 8 5 3 2 1 5 10 13 8
DISPERSION PR PR VP VP PR PR VP VP PR
ADI 114 60 5 1 1 1 2 28 71 83 4 3 2 1 1 22 74104 4
MAX LVORI 1 1 2 2 3 3 3 2 1 1 2 3 3 3 3 2 1 1 2
STABILITY B C E F F G A A B B F F F G A A B B F
CEILING 7500 None None None None None None None None
STA PRES 29.14 29.13 29.10 29.09 29.03 29.03 29.00 29.01 28.96
Date Thu 04/16/26Fri 04/17/26Sat 04/18/26Sun 04/19/26
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 61 88 62 88 60 90 61 78
TEMP 65 63 86 81 68 64 85 80 64 62 87 83 69 64 76 68
DEWPT 51 51 51 49 49 53 49 49 50 50 52 50 51 51 44 42
RH 60 65 30 33 51 67 29 34 60 65 30 32 53 63 32 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC FW FW SC SC SC SC B1 SC B1 B1 B1
POP 12HR 0 0 5 0 0 5 10 30
RAIN SHWRS 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