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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
532 PM EDT Fri Apr 3 2026
NCZ006-040800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
532 PM EDT Fri Apr 3 2026
Date 04/03/26 Sat 04/04/26 Sun 04/05/26 Mon
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 60 82 62 73 44
TEMP 74 68 65 63 62 74 80 81 78 71 69 65 64 70 71 70 64 58 52 47 45
DEWPT 58 60 61 60 61 62 61 60 58 60 59 58 60 64 63 59 54 45 40 37 36
MIN/MAX RH 97 49 88 67 73
RH 57 76 87 90 97 66 52 49 50 68 70 78 87 81 76 68 70 62 63 68 70
WIND DIR S S S SW SW SW SW SW S S S S S SW SW W W NW NW NW NW
WIND SPD 4 4 4 3 4 9 10 10 6 8 9 10 10 10 9 6 3 4 3 3 3
WIND GUST 14 18 19 23 23 21
CLOUDS FW SC SC SC SC SC SC SC SC SC B1 B1 OV OV OV OV B1 B1 SC FW FW
CLOUDS(%) 8 43 47 38 35 40 41 40 33 43 59 54 99 99 93 92 64 55 35 15 15
VSBY 10 10 10 10 10 10 10 10 10 10 10 9 7 7 6 6 6
POP 12HR 0 5 20 100 10
RAIN SHWRS IS IS O O O O
TSTMS IS IS IS IS
MIX HGT <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 1 2 3 2 2 <1
T WIND DIR S S SW S SW SW SW SW S S S SW S SW SW W W
T WIND SPD 6 6 8 5 10 13 17 17 9 10 17 19 19 18 18 11 10
DISPERSION VP VP VP VP PR PR PR FR VP VP VP VP
ADI 3 5 5 3 11 44 73 73 4 9 15 18 34 40 32 20 5
MAX LVORI 3 4 5 6 6 1 1 1 2 3 3 3 4 3 3 3 3
STABILITY F E E G B C C C F D D D D D D D F
CEILING None None None None None 2900 2400 1300 None
STA PRES 29.61 29.60 29.61 29.50 29.47 29.41 29.37 29.32
Date 04/06Tue 04/07/26Wed 04/08/26Thu 04/09/26Fri 04/10/26
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 67 44 64 35 63 39 71 47 76
TEMP 64 61 49 46 62 57 42 37 59 56 43 41 68 65 52 50 73 69
DEWPT 34 36 36 36 29 26 24 23 26 30 34 36 44 45 47 48 49 48
RH 32 39 61 68 28 30 48 56 28 37 70 82 42 48 83 93 43 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC SC FW FW CL CL FW SC SC SC SC SC FW FW SC SC
POP 12HR 0 0 0 0 0 0 5 5 5
$$
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