Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Sun May 3 2026
VAZ024-040800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
131 AM EDT Sun May 3 2026
Date 05/02/26 Sun 05/03/26 Mon 05/04/26 Tue
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 67 41 78 51
TEMP 40 36 39 53 63 67 60 49 45 42 46 65 73 77 70 62 56 52 56
DEWPT 28 29 29 28 28 28 30 30 30 30 34 40 45 48 49 47 46 46 48
MIN/MAX RH 74 23 63 35 81
RH 62 75 67 38 26 23 32 48 55 62 63 40 37 36 47 58 69 80 74
WIND DIR W W NW NW NW W W W SW W W SW SW SW SW SW SW SW SW
WIND SPD 2 2 2 4 5 5 2 1 1 1 1 4 6 5 2 2 2 2 2
WIND GUST 17 17 12
CLOUDS CL CL CL CL CL CL CL FW B1 SC SC SC SC SC SC SC SC SC FW
CLOUDS(%) 4 2 2 2 3 5 5 25 60 32 41 35 46 43 36 30 31 27 23
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 20 10
RAIN SHWRS IS IS
TSTMS IS
MIX HGT <1 <1 3 6 7 7 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NW NW NW NW NW W SW W W W W SW W W S
T WIND SPD 5 5 14 13 13 11 3 2 2 2 3 17 16 18 8
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 3 52 98114 96 2 1 1 1 3 85103123 4
MAX LVORI 3 3 1 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY G G A A A A G G F G A A B B G
CEILING None None None None None None None None
STA PRES 28.51 28.56 28.50 28.50 28.49 28.47 28.39
Date 05/05Wed 05/06/26Thu 05/07/26Fri 05/08/26Sat 05/09/26
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 83 60 79 58 74 43 70 45 71
TEMP 81 76 65 60 74 72 63 58 70 62 47 46 66 64 50 50 67 64
DEWPT 48 46 49 55 60 59 57 57 54 45 38 39 38 40 40 43 50 46
RH 32 34 56 84 62 64 81 96 57 54 71 76 36 41 68 77 54 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B2 B2 B2 OV B2 B2 SC FW SC SC SC SC B1 B1
POP 12HR 5 60 80 80 80 20 20 20 40
RAIN SHWRS IS NM O O NM O O NM IS IS IS SC SC
TSTMS SC SC SC 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