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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 PM EST Tue Jan 27 2026
NCZ001-280900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
201 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 11 21 9 23 15
TEMP 20 18 18 15 13 12 14 19 20 16 15 13 11 10 13 20 23 19 18 16 17 16
DEWPT 7 10 11 9 8 7 6 6 5 7 5 4 4 3 4 5 5 7 7 8 10 9
MIN/MAX RH 81 51 73 45 75
RH 56 70 73 77 80 80 70 56 51 67 64 67 73 73 67 51 45 59 61 70 73 73
WIND DIR W W NW NW W W W W W W W NW NW NW W W W W W W W W
WIND SPD 27 35 42 34 26 19 18 18 21 27 33 32 27 20 14 11 10 10 10 8 8 8
WIND GUST 37
CLOUDS CL SC SC B1 B1 B1 SC FW FW FW FW FW SC SC SC SC SC SC SC B1 B2 B2
CLOUDS(%) 5 34 49 55 61 55 26 12 9 6 12 14 31 44 42 45 35 37 42 58 71 76
VSBY 10 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 20 0 0
SNOWSHWRS IS IS
MIX HGT 2 <1 1 <1 <1 <1 1 2 2 <1 <1 1 1 <1 2 2 2 <1
T WIND DIR W W NW NW NW NW W W W W NW NW NW NW NW NW W W
T WIND SPD 28 23 39 32 26 14 16 20 26 24 28 31 26 19 16 13 11 8
DISPERSION GD GD GD GD GD GD GD GD FR FR PR PR
ADI 50 21 35 29 24 16 24 40 53 22 26 28 24 24 27 36 27 5
MAX LVORI 1 3 3 3 3 3 3 1 1 3 2 3 3 3 3 1 2 3
STABILITY D D D D D D D D D D D D D D D C C E
CEILING None 200 None None None None None None None
STA PRES 26.65 26.67 26.70 26.61 26.60 26.63 26.69 26.69
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 23 6 8 1 12 8 24 14 26
TEMP 23 19 15 8 8 5 4 2 9 11 9 10 22 19 18 15 24 22
DEWPT 13 13 10 3 1 -3 -4 -5 0 1 1 2 8 10 11 10 14 13
RH 65 77 80 79 72 69 68 72 66 63 69 69 54 67 73 80 65 68
WIND SPD <15 <15 15> 15> 15> 15> 15> 15> <15
AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC B1 SC B1 B1 SC SC
POP 12HR 30 50 40 20 0 0 5 0 0
SNOW C C C C S 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
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