Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Apr 30 2026
NCZ003-010800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Thu Apr 30 2026
Date 04/30/26 Fri 05/01/26 Sat 05/02/26 Sun
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 42 67 45 62 36
TEMP 51 47 43 45 57 64 67 64 54 51 48 46 53 57 61 57 47 42 38 41
DEWPT 35 35 35 36 36 38 39 40 42 41 40 40 42 41 38 35 33 31 30 29
MIN/MAX RH 73 35 81 42 73
RH 54 63 73 70 45 38 36 41 64 68 74 79 66 55 42 43 58 65 73 62
WIND DIR N N N N SE S SW W NW N N N N N N NW NW NW NW NW
WIND SPD 4 3 1 1 3 6 6 2 2 2 2 2 2 4 4 4 3 3 3 3
WIND GUST 16 14 13 13 13
CLOUDS SC SC SC B2 SC SC B2 B2 B2 B2 OV OV OV OV B2 SC SC FW FW CL
CLOUDS(%) 28 35 45 76 38 47 74 83 83 81 90 90 91 90 73 41 35 14 11 5
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 40 60 20
RAIN SHWRS SC SC NM NM SC SC IS IS
MIX HGT <1 <1 <1 <1 3 6 6 <1 <1 1 1 2 3 5 7 1
T WIND DIR N N N N S SW SW SW N N N N N N N NW
T WIND SPD 12 6 8 4 5 9 10 8 4 13 18 14 16 14 19 13
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 6 3 4 5 26 68 80 4 2 6 8 32 55 84 92 9
MAX LVORI 3 3 3 3 2 1 1 2 3 3 3 3 1 1 1 2
STABILITY G F F A A A A F F F F B B B C E
CEILING None None None 16400 16700 5200 800 5500 None
STA PRES 28.05 28.08 28.09 28.02 28.05 28.08 28.06 28.01
Date 05/03Mon 05/04/26Tue 05/05/26Wed 05/06/26Thu 05/07/26
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 66 39 76 46 78 54 78 54 74
TEMP 62 59 42 45 72 69 50 50 76 71 59 57 73 72 60 56 70 64
DEWPT 32 34 33 35 42 45 44 44 47 49 49 52 57 57 54 53 52 43
RH 32 39 70 68 34 42 80 80 36 46 69 83 57 59 81 90 53 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL FW CL FW FW FW FW FW SC B1 B1 B1 B1 B1 B2 B1 B1
POP 12HR 5 0 5 5 10 20 50 60 40
RAIN SHWRS IS SC SC SC NM SC SC
TSTMS IS IS SC
$$
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