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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Tue Jan 27 2026
NCZ003-280900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
701 PM EST Tue Jan 27 2026
Date 01/27/26 Wed 01/28/26 Thu 01/29/26 Fri
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX TEMP 15 36 14 35 17
TEMP 24 21 18 16 23 32 36 29 23 19 17 15 23 31 35 27 21 20 19 19
DEWPT 13 13 11 9 12 13 13 14 11 8 7 5 9 10 11 12 11 11 12 11
MIN/MAX RH 77 39 66 37 74
RH 62 71 73 73 62 45 38 53 59 61 64 64 54 41 36 53 65 67 74 70
WIND DIR W NW NW N NW W W W NW NW NW NW W W W NW N NE NE NE
WIND SPD 9 5 4 2 3 5 5 8 5 5 5 3 4 4 3 2 2 2 2 2
CLOUDS FW SC B1 B2 B1 FW FW FW FW FW FW FW SC B1 SC SC SC B1 B2 B2
CLOUDS(%) 21 43 66 70 60 15 8 14 10 9 13 25 34 51 35 34 49 68 80 83
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 2 3 4 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR W NW NW NW W W W W W NW NW NW W W W SW
T WIND SPD 9 16 12 6 9 9 16 14 11 17 16 13 11 9 8 2
DISPERSION PR PR VP PR PR PR PR VP VP VP VP
ADI 6 11 8 7 24 37 78 10 5 8 7 14 30 29 29 1
MAX LVORI 3 3 3 3 2 1 1 2 3 3 3 2 2 2 2 2
STABILITY E E E B B B B E F F F B B C B G
CEILING None 23100 None None None None None None None
STA PRES 29.10 29.14 29.16 29.03 29.05 29.12 29.17 29.12
Date 01/30Sat 01/31/26Sun 02/01/26Mon 02/02/26Tue 02/03/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 30 12 21 10 25 12 34 15 37
TEMP 28 25 18 13 18 17 13 11 23 22 15 13 31 29 20 17 34 27
DEWPT 16 16 12 6 9 5 2 1 8 6 5 4 13 15 13 11 18 17
RH 60 68 77 73 67 58 61 63 52 49 64 67 47 55 74 77 51 65
WIND SPD <15 <15 <15 15> <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 SC SC FW FW SC SC SC SC SC FW
POP 12HR 30 50 40 20 5 0 0 0 0
SNOW C C C C C S
$$
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