Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Thu May 28 2026
VAZ024-282000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
1001 AM EDT Thu May 28 2026
Date Thu 05/28/26 Fri 05/29/26 Sat 05/30/26
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 81 55 82 56 80
TEMP 75 81 81 74 65 59 55 60 71 78 81 74 65 59 57 57 71 77 79 71
DEWPT 62 56 53 54 52 50 49 51 54 54 55 58 55 53 51 52 53 53 52 51
MAX/MIN RH 38 81 41 81 39
RH 64 42 38 50 63 72 80 72 55 43 41 57 70 80 80 83 53 43 39 49
WIND DIR N N NW N N N N NE S SW SW SW NW NW NW N N NE E E
WIND SPD 6 10 10 5 4 2 2 1 3 5 6 3 2 2 2 2 1 2 4 4
WIND GUST 17
CLOUDS FW FW FW CL CL CL CL CL CL CL FW SC SC SC SC SC SC B1 B1 B1
CLOUDS(%) 6 12 6 5 5 4 4 3 4 4 25 45 41 36 43 49 47 53 54 55
VSBY 10 10 10 10 10 10 6 7 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 4 6 6 <1 <1 <1 <1 1 3 4 4 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR N N NW N N N N NE W SW SW S SW NW NW NW N N NE NE
T WIND SPD 14 14 14 9 4 4 3 5 4 6 8 8 2 3 4 3 9 6 8 14
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 79100 97 4 2 2 2 10 19 36 38 4 1 2 2 3 35 40 29 10
MAX LVORI 1 1 1 2 3 3 5 3 2 1 1 3 3 5 4 5 1 1 2 2
STABILITY A B B F F G G A A A B F F G F A A B C E
CEILING None None None None None None None None None
STA PRES 28.48 28.55 28.57 28.55 28.42 28.37 28.33 28.35 28.36
Date Sun 05/31/26Mon 06/01/26Tue 06/02/26Wed 06/03/26
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 51 75 53 79 52 78 51 77
TEMP 57 56 71 68 57 57 77 72 58 56 75 70 56 55 74 70
DEWPT 48 48 52 55 52 55 55 55 52 52 51 54 49 51 51 55
RH 72 74 51 63 83 93 47 55 80 86 43 57 77 86 44 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW SC SC SC SC SC SC FW SC SC FW FW FW FW
POP 12HR 0 0 20 30 20 20 10 10
RAIN SHWRS IS IS SC IS IS IS
TSTMS 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