Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun May 10 2026
VAZ046-102000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Sun May 10 2026
Date Sun 05/10/26 Mon 05/11/26 Tue 05/12/26
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 83 52 64 44 72
TEMP 76 82 82 74 65 61 56 53 58 59 62 58 51 48 45 48 61 69 71 65
DEWPT 52 50 50 53 54 54 51 47 49 50 50 49 48 45 42 41 40 40 40 42
MAX/MIN RH 33 82 64 92 32
RH 43 33 33 48 68 78 83 80 72 72 65 72 89 89 89 77 46 35 32 43
WIND DIR W W W W NE NE NE NE NE NE E E N N N N NE NE S SE
WIND SPD 5 6 8 3 2 4 8 10 8 5 4 2 1 3 4 5 5 3 3 3
WIND GUST 18 20
CLOUDS CL CL FW SC B1 B1 SC B2 OV OV OV B2 SC FW SC FW CL FW FW FW
CLOUDS(%) 2 3 9 41 68 58 43 79 90 92 88 77 32 25 28 19 3 6 7 14
VSBY 10 10 10 10 10 10 7 10 9 7 9 10 8 6 10 10 10 10 10 10
POP 12HR 5 20 70 5 0
RAIN SHWRS IS IS SC NM SC
MIX HGT 5 8 8 <1 <1 <1 <1 1 2 2 2 <1 <1 <1 <1 1 5 6 6 <1
T WIND DIR W W W SW N NE NE NE N N N N N N NW N N N NE SE
T WIND SPD 10 12 13 4 3 16 9 21 21 18 10 11 9 3 1 3 13 5 1 2
DISPERSION VP VP VP PR VP VP VP VP VP
ADI 65108117 2 2 11 8 30 49 42 25 5 4 2 1 5 83 41 8 1
MAX LVORI 1 1 1 2 3 4 4 3 3 3 3 3 6 7 7 4 1 1 2 2
STABILITY A B B F F E D C C C C F G G F A A A A G
CEILING None None 5900 1700 4600 2200 None None None None
STA PRES 29.28 29.24 29.30 29.36 29.45 29.41 29.43 29.45 29.50 29.45
Date Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
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 50 74 50 71 48 75 53 84
TEMP 52 54 73 67 56 53 69 65 51 52 73 69 57 58 82 77
DEWPT 42 45 52 55 53 51 45 45 43 45 47 49 48 50 53 55
RH 69 71 48 65 90 93 42 48 74 77 40 49 72 75 37 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC B1 B2 SC FW FW FW FW FW FW FW SC FW FW
POP 12HR 0 50 70 10 0 0 5 5
RAIN SHWRS SC NM IS
TSTMS 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