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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
432 PM EDT Mon Apr 13 2026
NCZ006-140800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
432 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 60 88 63 92 64
TEMP 84 77 69 66 62 63 79 86 88 80 73 68 64 65 83 90 91 84 74 70 65 67
DEWPT 51 52 52 51 51 53 56 53 51 53 52 52 51 53 56 53 52 52 51 51 51 53
MIN/MAX RH 71 29 68 26 64
RH 32 42 55 58 67 70 45 32 28 39 48 57 63 65 40 28 27 33 44 51 60 61
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW SW SW W SW SW SW SW SW SW SW
WIND SPD 9 3 3 3 3 3 4 5 6 3 3 3 3 2 3 5 6 3 3 4 4 4
CLOUDS SC SC FW FW SC SC FW FW SC FW FW SC FW FW FW FW FW SC SC B1 SC SC
CLOUDS(%) 44 45 24 25 36 37 16 22 46 20 22 27 20 24 17 22 23 36 42 52 47 50
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 0 0 0
MIX HGT 7 <1 <1 <1 <1 <1 3 7 7 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR W SW SW SW SW SW W W W SW SW SW SW SW W SW SW SW
T WIND SPD 16 5 6 6 5 5 10 14 14 4 3 5 5 5 10 13 16 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 126 3 3 3 3 6 39123114 2 2 3 3 6 47114123 3
MAX LVORI 1 2 2 3 3 3 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY B F G G G A A A B G G G G A A A B G
CEILING None None None None None None None None None
STA PRES 29.55 29.53 29.55 29.47 29.45 29.43 29.43 29.36
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 92 64 93 61 95 67 85 46 72
TEMP 90 87 73 67 90 84 67 64 93 87 73 69 83 72 54 47 69 65
DEWPT 53 51 51 54 50 49 51 52 51 52 53 55 51 38 31 28 26 28
RH 28 29 46 63 25 30 56 65 24 30 49 61 33 29 41 47 20 25
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC FW FW FW SC SC B1 B1 B1 B1 B1 SC FW FW FW
POP 12HR 0 5 5 0 0 5 30 20 5
RAIN SHWRS SC 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