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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun May 3 2026
VAZ012-040800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Sun May 3 2026
Date 05/03/26 Mon 05/04/26 Tue 05/05/26 Wed
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 38 73 45 77 55
TEMP 43 41 38 44 62 71 73 64 55 50 46 50 72 77 75 66 62 59 57 56
DEWPT 27 28 30 33 39 42 42 43 42 41 41 42 43 40 41 43 45 46 48 52
MIN/MAX RH 71 33 87 26 87
RH 53 59 73 65 43 35 33 46 61 71 83 74 35 26 29 43 54 62 72 86
WIND DIR W W W W W W W SW SW SW SW SW SW S S S S S S S
WIND SPD 2 2 2 3 5 5 5 3 2 2 2 2 4 6 6 5 5 5 5 5
WIND GUST 17 17
CLOUDS FW SC SC SC SC SC SC SC SC SC FW FW FW B1 B1 B2 B1 B2 B2 OV
CLOUDS(%) 20 46 46 40 42 49 40 33 30 35 23 20 17 51 64 79 55 78 85 88
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 20 0 10 70
RAIN SHWRS IS IS IS NM NM NM
TSTMS IS
MIX HGT <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR SW SW SW W W W SW S S S SW S SW S SW S
T WIND SPD 5 4 5 13 20 19 21 5 9 5 4 3 18 26 28 11
DISPERSION VP VP VP VP VP VP VP PR PR PR PR
ADI 3 2 3 13 81120152 3 4 3 2 3 98200134 8
MAX LVORI 2 3 3 3 1 1 1 2 3 3 5 4 1 1 1 2
STABILITY G F F A A A A G G G G A A B C E
CEILING None None None None None None None 8800 3100
STA PRES 27.22 27.23 27.22 27.17 27.16 27.18 27.17 27.11
Date 05/06Thu 05/07/26Fri 05/08/26Sat 05/09/26Sun 05/10/26
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 71 47 64 34 65 43 67 43 71
TEMP 70 63 56 52 59 52 41 41 63 56 46 47 65 57 46 47 69 62
DEWPT 56 55 53 52 47 39 34 33 34 38 39 42 45 44 42 42 43 45
RH 61 75 90100 64 61 76 73 34 51 76 83 48 62 86 83 39 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV B2 OV B2 B2 B1 SC FW SC B1 SC B1 B1 SC SC FW SC
POP 12HR 90 90 80 20 10 30 40 20 20
RAIN SHWRS NM O O O O SC IS IS SC SC SC IS IS
TSTMS SC 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