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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Sat Apr 11 2026
NCZ003-120800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
431 PM EDT Sat Apr 11 2026
Date 04/11/26 Sun 04/12/26 Mon 04/13/26 Tue
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 50 77 54 81 55
TEMP 78 70 62 57 53 53 63 73 77 72 64 61 57 57 71 79 81 75 65 59 55 58
DEWPT 51 53 50 48 48 49 52 54 52 52 49 49 49 50 53 52 51 51 50 49 48 48
MIN/MAX RH 90 41 80 35 75
RH 39 55 65 72 83 86 67 51 42 49 58 65 75 77 53 39 35 43 58 69 77 69
WIND DIR N N N N NE E SE S S S SW S SW SW SW SW SW SW SW W W W
WIND SPD 2 1 1 1 1 1 2 4 5 2 2 2 2 2 5 6 6 2 1 1 1 1
WIND GUST 17 12
CLOUDS SC SC FW CL SC B1 B1 FW FW SC SC B1 B1 SC B1 B1 B1 B1 SC FW FW SC
CLOUDS(%) 33 34 15 5 42 65 56 16 19 34 47 60 53 50 51 55 66 56 32 20 23 38
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 0 5 5
MIX HGT 7 <1 <1 <1 <1 1 2 3 5 <1 <1 <1 1 1 3 7 7 <1
T WIND DIR NW NE NE NE E E SE S S S SW SW SW SW SW SW SW SW
T WIND SPD 5 2 4 3 6 9 6 5 9 8 4 2 9 8 13 14 13 11
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 49 1 2 2 3 18 20 24 55 4 2 1 4 11 53109102 5
MAX LVORI 1 2 3 3 5 4 3 2 1 2 3 3 4 4 1 1 1 2
STABILITY A G G G F B B A A G F F F A A B B F
CEILING None None None None None None None 10700 None
STA PRES 28.39 28.43 28.51 28.44 28.43 28.40 28.39 28.32
Date 04/14Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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 86 57 90 58 90 60 88 59 89
TEMP 85 79 63 61 88 81 66 63 87 81 65 62 86 79 65 62 87 81
DEWPT 54 55 52 50 51 50 50 49 52 52 52 54 55 55 54 55 58 55
RH 35 44 67 67 28 34 56 60 30 37 63 75 35 44 68 78 38 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC B1 SC SC B1 SC SC SC SC SC SC SC B1
POP 12HR 5 0 0 0 5 10 10 5 30
RAIN SHWRS SC
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