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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Apr 13 2026
NCZ003-140800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Mon Apr 13 2026
Date 04/13/26 Tue 04/14/26 Wed 04/15/26 Thu
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 55 85 59 89 58
TEMP 65 60 57 59 75 83 84 77 68 62 59 62 79 87 89 81 69 63 59 61
DEWPT 52 51 48 48 53 54 56 57 54 53 50 49 51 51 51 53 51 51 49 50
MIN/MAX RH 73 37 73 27 71
RH 63 72 72 67 46 37 38 50 61 72 72 62 38 29 27 38 53 65 69 67
WIND DIR W NW W N W SW SW SW W W NW NW W SW SW SW W W NW NW
WIND SPD 1 1 1 0 2 4 3 2 1 1 1 2 2 3 4 2 1 1 1 1
CLOUDS FW SC SC SC SC SC SC FW SC SC SC SC FW FW SC SC SC B1 SC B1
CLOUDS(%) 24 46 33 35 38 39 42 14 29 32 28 29 17 25 26 44 43 51 49 51
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 0 0 0
SPRINKLES
MIX HGT <1 <1 <1 <1 4 7 7 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR SW W W NW W W SW SW SW W NW NW W SW SW S
T WIND SPD 4 2 1 2 8 11 9 6 4 3 3 4 9 10 11 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 2 41 95 73 3 2 2 2 4 41 87 97 4
MAX LVORI 3 3 4 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY G F G A A A A G G G G A A A A F
CEILING None None None None None None None None None
STA PRES 28.30 28.28 28.30 28.24 28.21 28.19 28.19 28.14
Date 04/16Fri 04/17/26Sat 04/18/26Sun 04/19/26Mon 04/20/26
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 88 58 89 57 91 59 78 40 70
TEMP 86 81 66 62 85 79 62 61 89 82 68 62 74 66 48 42 67 63
DEWPT 52 51 51 54 50 50 49 50 52 53 51 51 46 34 28 26 26 28
RH 31 35 58 75 30 36 62 67 28 37 54 67 37 30 46 53 21 26
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC FW FW SC SC SC B1 B1 B1 B2 B1 FW FW FW FW
POP 12HR 0 10 5 0 5 20 40 10 5
RAIN SHWRS IS 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