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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Apr 12 2026
NCZ006-122000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 AM EDT Sun Apr 12 2026
Date Sun 04/12/26 Mon 04/13/26 Tue 04/14/26
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 60 85 61 90
TEMP 67 77 82 75 68 65 62 63 75 82 84 77 69 66 64 63 79 87 89 81
DEWPT 51 53 52 53 54 56 57 57 55 52 50 50 50 51 51 52 53 52 51 52
MAX/MIN RH 35 86 31 68 27
RH 56 43 35 46 61 73 84 81 50 35 31 39 51 58 63 67 41 30 27 37
WIND DIR SE S S S S S SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 5 5 6 4 8 8 6 8 11 12 11 5 4 4 4 4 5 6 6 3
CLOUDS SC SC SC SC FW B1 B1 B1 SC B1 B1 B1 SC FW FW SC FW SC SC SC
CLOUDS(%) 35 29 42 28 24 54 55 63 43 61 55 55 46 23 24 27 21 40 34 34
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 5 0 5 0
MIX HGT 2 4 6 <1 <1 <1 <1 1 3 6 6 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR SE SE S SE S S S SW SW SW SW SW SW SW SW SW W SW SW SW
T WIND SPD 11 10 9 4 12 11 12 14 19 24 20 8 6 6 5 8 4 9 12 5
DISPERSION VP PR PR PR PR VP VP VP VP
ADI 37 52 65 2 8 10 8 23 64108 94 5 5 3 3 8 18 69 98 3
MAX LVORI 1 1 1 2 3 3 4 3 1 1 1 2 2 3 3 3 2 1 1 2
STABILITY A A B F E D E C C C C E E F F A A B B G
CEILING None None None None None None None None None None
STA PRES 29.75 29.67 29.65 29.65 29.64 29.57 29.55 29.53 29.53 29.45
Date Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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 63 93 66 93 67 91 64 95
TEMP 71 66 91 86 71 67 89 85 72 68 89 83 70 66 92 86
DEWPT 51 51 51 51 51 52 52 51 53 55 54 52 54 56 54 54
RH 49 58 26 30 49 59 28 31 51 63 30 34 57 70 28 34
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC SC
POP 12HR 0 0 0 0 5 5 0 10
$$
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