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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
531 AM EDT Tue Apr 7 2026
NCZ006-072000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
531 AM EDT Tue Apr 7 2026
Date Tue 04/07/26 Wed 04/08/26 Thu 04/09/26
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 66 34 61 34 67
TEMP 47 56 62 65 55 48 43 39 38 50 56 60 52 46 42 38 40 51 64 67 60
DEWPT 33 33 28 25 25 23 20 19 20 23 21 22 27 29 30 31 33 37 39 38 40
MAX/MIN RH 22 57 23 88 34
RH 58 42 27 22 31 37 39 44 48 34 25 23 38 51 62 76 76 59 40 34 47
WIND DIR N N N N N NE NE NE NE NE NE E E E E NE NE NE E E E
WIND SPD 2 8 8 6 3 6 4 5 5 8 8 8 3 2 1 1 2 3 3 3 2
CLOUDS B1 B1 SC FW FW FW CL CL CL FW FW FW SC SC SC SC SC SC SC SC SC
CLOUDS(%) 62 52 46 21 15 6 4 3 5 9 13 20 29 27 42 43 46 37 30 34 29
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT <1 4 5 6 <1 <1 <1 <1 2 3 4 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR N N N N N NE NE NE NE NE NE E E E E NE NE NE E E E
T WIND SPD 8 13 12 10 6 11 12 11 17 13 11 12 9 8 5 4 8 4 4 5 5
DISPERSION VP PR VP PR VP VP VP VP VP
ADI 8 64 79 72 3 5 6 5 36 50 55 62 4 4 3 2 8 15 28 36 3
MAX LVORI 3 1 1 1 2 2 2 2 1 1 1 1 2 2 3 4 4 2 2 1 2
STABILITY A B B B G F F F A B B B G G F F A A A A G
CEILING None None None None None None None None None None
STA PRES 29.65 29.64 29.74 29.84 29.91 29.85 29.88 29.87 29.85 29.73
Date Fri 04/10/26Sat 04/11/26Sun 04/12/26Mon 04/13/26
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 40 76 48 83 52 83 57 85
TEMP 45 44 73 67 53 52 80 74 59 55 80 76 63 59 82 78
DEWPT 42 41 42 42 43 43 47 49 51 50 52 51 52 55 54 53
RH 89 89 33 40 69 71 31 41 75 83 38 42 67 87 38 42
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC SC
POP 12HR 10 5 5 5 0 0 0 0
$$
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