Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
531 PM EDT Fri May 1 2026
VAZ024-020800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
531 PM EDT Fri May 1 2026
Date 05/01/26 Sat 05/02/26 Sun 05/03/26 Mon
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 44 64 36 67 42
TEMP 63 55 50 47 46 54 60 63 55 47 42 39 43 55 63 66 58 49 46 43 47
DEWPT 39 40 39 36 35 33 31 30 29 29 30 29 31 30 30 31 31 32 32 32 36
MIN/MAX RH 67 30 69 26 69
RH 41 57 66 65 65 45 33 29 37 49 62 67 62 38 29 27 36 52 58 65 65
WIND DIR SW NW NW N N N N NW NW NW W W W NW W W W W W W W
WIND SPD 3 3 3 3 3 4 3 4 4 3 2 1 2 5 6 6 3 1 1 1 2
CLOUDS B1 B2 B2 B2 B2 B2 B2 SC FW FW FW FW FW CL CL CL FW SC SC SC SC
CLOUDS(%) 67 70 81 82 82 86 87 30 17 8 9 10 7 5 4 4 7 29 29 35 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 10 5 0 5
MIX HGT 1 1 1 <1 2 4 6 8 <1 <1 <1 <1 2 6 7 7 <1
T WIND DIR S SW NW N N N N NW NW NW NW NW NW NW W W W
T WIND SPD 9 8 11 10 10 9 12 13 13 6 4 3 10 14 14 14 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 5 4 6 7 37 46 81115 6 4 2 2 31107110121 2
MAX LVORI 2 3 3 3 1 1 1 1 2 2 3 3 1 1 1 1 2
STABILITY F F F F A B B A F G G G A A B B G
CEILING 5000 11600 14200 None None None None None None
STA PRES 28.38 28.40 28.43 28.37 28.46 28.52 28.55 28.48
Date 05/04Tue 05/05/26Wed 05/06/26Thu 05/07/26Fri 05/08/26
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 78 50 83 59 80 56 73 45 71
TEMP 73 71 55 54 80 75 63 59 75 74 62 58 70 64 51 48 68 63
DEWPT 46 46 45 47 48 46 48 52 57 55 54 55 55 43 40 40 39 38
RH 38 41 69 77 33 36 58 78 54 51 75 90 59 46 66 74 34 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW SC B1 B1 B1 B2 B1 B2 B2 B1 SC SC SC SC
POP 12HR 10 5 5 30 60 70 60 20 20
RAIN SHWRS SC SC NM SC NM NM SC IS IS IS
TSTMS SC 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