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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
702 PM EDT Tue Apr 7 2026
NCZ005-080800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
702 PM EDT Tue Apr 7 2026
Date 04/07/26 Wed 04/08/26 Thu 04/09/26 Fri
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 35 59 35 66 41
TEMP 57 50 44 38 37 47 56 59 54 45 40 35 37 51 62 66 59 49 44 41 43
DEWPT 23 21 20 19 19 20 20 18 22 24 26 28 31 33 34 33 34 36 37 37 37
MIN/MAX RH 52 20 79 29 86
RH 27 31 38 46 48 34 24 20 28 43 57 75 79 50 35 29 39 61 76 85 79
WIND DIR NE NE NE NE NE NE NE E E E E NE NE NE E E E E N NW W
WIND SPD 4 6 8 8 8 9 8 6 4 4 4 3 4 4 4 3 2 2 2 2 2
WIND GUST 18
CLOUDS FW CL FW CL CL FW FW FW SC SC SC SC SC SC FW FW FW CL CL CL FW
CLOUDS(%) 8 4 6 4 5 7 23 24 37 33 48 40 41 33 19 25 22 5 5 4 7
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 2 3 4 4 <1 <1 <1 <1 <1 2 4 5 <1
T WIND DIR N NE NE NE NE NE E E E E E E E E E E E
T WIND SPD 13 6 11 11 17 12 11 9 8 9 8 3 6 3 2 2 3
DISPERSION VP PR PR PR VP VP VP VP VP VP VP VP
ADI 6 3 8 8 34 47 54 47 4 4 4 2 7 10 12 14 2
MAX LVORI 2 2 2 2 1 1 1 1 2 2 3 3 4 2 2 2 2
STABILITY F F E E B B B B F F F G A A A A G
CEILING None None None None None None None None None
STA PRES 29.61 29.70 29.77 29.71 29.73 29.71 29.71 29.60
Date 04/10Sat 04/11/26Sun 04/12/26Mon 04/13/26Tue 04/14/26
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 76 50 82 53 80 58 82 61 85
TEMP 73 68 55 53 79 73 60 55 77 74 63 60 80 76 66 63 83 79
DEWPT 41 41 41 42 47 50 50 48 50 49 53 55 53 51 53 56 56 53
RH 31 37 59 66 32 44 69 77 39 41 70 84 39 42 63 78 40 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW SC SC SC SC FW FW FW FW SC SC SC SC SC SC
POP 12HR 0 0 5 0 0 0 0 0 5
$$
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