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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sat May 2 2026
NCZ006-030800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 PM EDT Sat May 2 2026
Date 05/02/26 Sun 05/03/26 Mon 05/04/26 Tue
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 68 44 78 54
TEMP 62 59 50 45 40 43 56 64 67 62 50 47 45 49 67 75 78 72 62 59 55 57
DEWPT 34 35 33 30 30 32 32 31 31 35 35 36 38 42 47 44 45 47 48 48 48 50
MIN/MAX RH 70 26 80 31 81
RH 35 40 52 55 67 65 40 29 26 36 56 65 76 77 49 33 31 41 60 67 77 77
WIND DIR N NW NW NW NW NW NW W W SW S SW SW SW SW SW SW SW S S SW SW
WIND SPD 3 2 2 2 2 3 5 5 4 1 1 2 2 2 5 8 9 3 4 5 5 5
CLOUDS B2 B1 FW FW CL CL FW FW FW FW CL FW FW SC FW SC SC FW FW SC FW FW
CLOUDS(%) 87 59 20 14 5 5 6 7 7 9 5 11 18 29 25 27 29 22 22 27 15 10
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 0 0 5 10
MIX HGT 6 <1 <1 <1 <1 1 5 7 7 <1 <1 <1 <1 <1 4 7 8 <1
T WIND DIR N SW NW NW NW N NW W W SW S S SW SW W SW SW SW
T WIND SPD 8 2 9 9 8 21 13 10 10 3 4 5 4 4 13 16 18 4
DISPERSION VP VP VP VP VP VP VP VP VP VP PR PR
ADI 36 1 4 4 4 40 90 85 87 2 2 3 2 5 68117152 2
MAX LVORI 1 2 3 3 3 1 1 1 1 2 3 3 5 4 1 1 1 2
STABILITY C F G G G A A A A G G G G A A B B F
CEILING 6300 None None None None None None None None None
STA PRES 29.24 29.30 29.40 29.46 29.37 29.38 29.38 29.36 29.26
Date 05/05Wed 05/06/26Thu 05/07/26Fri 05/08/26Sat 05/09/26
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 83 59 83 64 78 45 73 48 77
TEMP 80 77 64 61 78 78 68 64 72 68 51 49 69 66 53 53 73 71
DEWPT 49 49 54 56 59 58 61 63 62 52 41 41 39 42 43 45 49 52
RH 34 37 70 84 52 50 78 97 71 57 68 74 33 42 69 74 43 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B2 B2 B2 B2 B2 B2 SC FW FW SC SC SC SC SC
POP 12HR 0 10 30 60 80 20 10 10 20
RAIN SHWRS IS SC SC NM O NM IS IS
TSTMS 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