Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Thu Apr 30 2026
VAZ024-010800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
131 AM EDT Thu Apr 30 2026
Date 04/29/26 Thu 04/30/26 Fri 05/01/26 Sat
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 67 39 70 44
TEMP 56 52 53 61 66 65 58 49 44 40 43 59 67 69 63 54 50 47 45
DEWPT 51 48 47 43 39 37 35 34 34 34 35 36 36 37 40 41 40 40 40
MIN/MAX RH 100 35 80 30 83
RH 83 86 80 51 37 35 42 56 68 79 73 42 32 31 43 61 68 76 82
WIND DIR W W W NW NW NW NW NW NW NW W SW SW SW W NW NW N N
WIND SPD 3 3 5 9 11 11 5 2 2 1 1 3 6 6 2 2 2 2 2
WIND GUST 21 18 12
CLOUDS SC B2 B1 SC SC FW FW FW SC B1 B1 SC SC B1 B1 B1 B2 B2 B2
CLOUDS(%) 44 71 61 33 27 23 8 23 38 58 59 36 34 53 66 69 80 78 82
VSBY 2 2 3 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 0 0 10 20
RAIN SHWRS IS IS SC
TSTMS
MIX HGT <1 <1 2 5 7 7 1 <1 <1 <1 1 4 7 8 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW S SW SW S
T WIND SPD 8 8 18 16 13 16 12 11 5 4 4 2 11 13 3
DISPERSION VP VP PR VP VP VP VP VP VP VP
ADI 4 4 40 95101117 6 5 3 2 8 13 83 69 2
MAX LVORI 5 6 4 1 1 1 2 3 3 5 3 2 1 1 2
STABILITY G F A B B B F G G F A A B C F
CEILING 15200 None None None None None None 6400
STA PRES 28.31 28.35 28.34 28.45 28.47 28.47 28.39
Date 05/02Sun 05/03/26Mon 05/04/26Tue 05/05/26Wed 05/06/26
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 63 36 68 39 76 49 79 48 80
TEMP 59 57 43 41 64 60 45 44 73 68 54 53 74 69 54 52 76 73
DEWPT 41 37 32 33 30 31 32 35 41 46 47 48 48 48 45 47 50 52
RH 51 47 65 73 28 33 60 70 31 45 77 83 40 47 71 83 40 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC FW FW FW CL FW FW SC SC SC SC SC SC SC SC B1
POP 12HR 40 20 0 5 20 20 20 10 30
RAIN SHWRS SC SC IS IS IS IS IS IS SC
TSTMS IS IS IS 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