Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Apr 30 2026
VAZ024-010800-
RAWS 441631
37.63N 79.51W Elev. 865 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 41 69 46 65 38
TEMP 50 45 42 46 59 66 69 65 54 49 46 47 56 61 64 58 49 43 39 42
DEWPT 34 34 35 36 36 35 37 39 40 40 39 38 39 38 37 36 35 33 32 32
MIN/MAX RH 76 30 77 37 75
RH 54 65 76 68 42 32 31 38 59 71 76 71 53 42 37 44 58 67 76 67
WIND DIR NW NW N N S S SW NW NW NW N N N N NW NW NW NW NW NW
WIND SPD 3 2 1 1 4 8 10 3 2 2 2 2 2 3 4 3 2 2 2 3
WIND GUST 13 13 12
CLOUDS FW SC B1 SC FW FW SC B1 B2 B2 B2 OV B2 OV B2 B1 B1 FW FW FW
CLOUDS(%) 14 50 61 47 21 11 38 65 79 75 83 89 87 90 72 57 51 25 16 6
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 10 20 40 30
RAIN SHWRS IS IS SC SC SC SC SC SC
MIX HGT <1 <1 <1 1 4 7 8 <1 <1 <1 <1 2 4 6 6 1
T WIND DIR NW NW NW NW S SW SW S N NW N N NW NW NW NW
T WIND SPD 6 3 3 1 4 11 13 4 13 11 10 8 9 4 8 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 2 25 91123 2 6 5 5 17 45 32 37 2
MAX LVORI 3 3 4 3 2 1 1 2 3 3 4 3 1 1 1 2
STABILITY G F F A A A A F F F F B B B C F
CEILING None None None None 7700 6500 1900 3500 None
STA PRES 28.45 28.47 28.47 28.38 28.45 28.48 28.47 28.38
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 78 49 82 56 79 55 76
TEMP 63 59 43 44 73 70 55 52 79 74 62 59 74 72 61 56 72 65
DEWPT 30 31 32 35 42 45 45 47 47 46 48 53 56 55 53 52 50 42
RH 29 34 65 70 33 41 69 83 32 37 60 80 53 55 75 86 46 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW FW SC FW FW FW SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 5 5 10 5 10 20 50 50 50
RAIN SHWRS IS SC SC SC SC 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