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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sat Apr 25 2026
NCZ006-260800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 PM EDT Sat Apr 25 2026
Date 04/25/26 Sun 04/26/26 Mon 04/27/26 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 56 72 45 73 46
TEMP 80 70 64 62 59 59 63 69 71 64 54 49 46 48 61 70 73 67 56 50 46 49
DEWPT 55 60 61 61 59 59 57 52 50 46 46 45 44 43 43 42 43 43 43 43 43 44
MIN/MAX RH 100 46 93 33 88
RH 42 71 90 97100100 81 55 47 52 74 86 93 83 51 36 34 42 62 77 89 83
WIND DIR W W SW SW W N NE NE NE NE NE NE N NE NE E E E E SE SE S
WIND SPD 5 2 1 1 2 5 8 9 10 6 5 3 3 4 5 5 5 2 2 2 2 1
CLOUDS B2 OV OV OV OV OV B2 SC FW SC FW SC SC FW FW FW FW FW FW FW SC B2
CLOUDS(%) 83 99 98 94 91 88 75 37 23 31 22 30 30 24 16 15 10 14 11 23 46 74
VSBY 6 3 7 1 1 1 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 20 5 0 5
RAIN SHWRS NM NM IS SC SC
TSTMS IS IS
Obvis PF PF PF
MIX HGT 7 <1 <1 <1 <1 1 2 4 4 <1 <1 <1 <1 2 3 4 4 <1
T WIND DIR SW N NW S W N NE N NE NE NE N N NE NE E E E
T WIND SPD 17 10 2 1 2 11 17 17 17 18 8 3 4 12 6 4 4 3
DISPERSION VP VP VP VP PR PR VP VP VP VP VP VP
ADI 80 5 1 1 1 21 47 83 88 8 4 2 2 25 29 25 26 2
MAX LVORI 1 3 7 9 10 5 3 1 1 2 4 5 6 4 2 2 2 2
STABILITY C F F F F C C B B F F G G A A A A G
CEILING 10300 400 400 900 None None None None None None
STA PRES 29.12 29.17 29.20 29.32 29.39 29.51 29.55 29.59 29.53
Date 04/28Wed 04/29/26Thu 04/30/26Fri 05/01/26Sat 05/02/26
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 55 77 52 73 44 73 46 65
TEMP 69 68 57 57 73 71 58 54 70 66 48 49 70 65 53 48 63 60
DEWPT 49 53 54 56 62 59 53 48 40 37 38 39 38 41 42 43 41 40
RH 49 59 90 96 68 66 83 80 33 34 68 68 31 41 66 83 44 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 B2 B2 B1 SC SC SC FW SC SC B1 B1 B1 B1 SC
POP 12HR 50 30 80 30 20 20 40 50 30
RAIN SHWRS SC SC SC NM O SC IS IS IS IS IS SC SC SC SC IS
TSTMS SC
$$
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