Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Tue May 5 2026
VAZ018-052000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 AM EDT Tue May 5 2026
Date Tue 05/05/26 Wed 05/06/26 Thu 05/07/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 79 59 75 57 67
TEMP 57 61 70 75 78 72 65 63 61 59 66 73 74 68 63 60 58 57 60 64 65 56
DEWPT 40 44 43 41 40 41 44 46 49 52 57 60 59 58 57 54 53 52 53 51 47 42
MAX/MIN RH 25 80 59 83 52
RH 53 53 38 29 26 33 46 54 65 78 73 64 59 70 81 81 83 83 78 63 52 59
WIND DIR W W SW SW S S SW S S S S SW SW W W W W NW NW W NW NW
WIND SPD 6 4 10 12 16 11 10 8 9 9 8 9 8 5 4 3 2 3 4 6 8 8
WIND GUST 18 21 24 28 25 25 26 25 24 20 17 13 13 14 17 18 23 25
CLOUDS SC FW FW FW B1 B1 B1 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B1 B1 SC
CLOUDS(%) 40 13 16 25 60 68 52 76 82 97 94 95 95 92 92 89 89 85 78 68 68 49
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 50 70 90 60
RAIN SHWRS IS SC NM NM NM NM O O O O NM NM SC SC IS
TSTMS SC SC SC IS IS IS SC IS
MIX HGT <1 <1 5 8 8 <1 <1 <1 <1 1 2 3 3 <1 <1 <1 <1 <1 2 4 4 2
T WIND DIR SW W W SW SW S S S S S SW SW SW SW SW W NW NW NW NW W NW
T WIND SPD 5 5 16 21 25 11 10 10 13 13 21 17 21 10 4 8 11 11 9 9 14 17
DISPERSION PR FR FR PR PR PR VP VP VP PR
ADI 3 6 95108124 10 9 9 12 20 59 54 67 7 3 4 5 12 26 34 57 19
MAX LVORI 2 2 1 1 1 2 2 2 3 3 3 1 1 3 5 5 4 4 3 1 1 2
STABILITY F A B C C D D D D C C C C E E F F B C C C D
CEILING None None 13300 4100 1000 1300 1200 500 1300 3300
STA PRES 27.73 27.67 27.68 27.62 27.63 27.62 27.63 27.61 27.62 27.59
Date Fri 05/08/26Sat 05/09/26Sun 05/10/26Mon 05/11/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 43 69 47 71 48 80 58 73
TEMP 47 46 65 60 50 51 68 63 51 53 77 71 61 60 70 63
DEWPT 35 36 36 39 40 43 46 45 43 45 47 50 51 54 54 47
RH 63 68 34 46 68 74 45 52 74 74 35 47 70 81 57 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW SC SC SC B1 B1 FW FW FW SC B1 B1 B2 B2
POP 12HR 20 10 20 40 5 20 50 70
RAIN SHWRS IS IS SC SC IS SC SC NM NM
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