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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EST Wed Jan 28 2026
NCZ001-290900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
601 PM EST Wed Jan 28 2026
Date 01/28/26 Thu 01/29/26 Fri 01/30/26 Sat
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 8 22 16 25 11
TEMP 17 14 11 9 8 11 19 21 16 16 16 17 17 20 23 25 22 20 18 16 12
DEWPT 4 0 1 0 0 0 1 1 2 6 8 10 11 13 15 16 17 14 13 12 9
MIN/MAX RH 70 39 76 70 86
RH 56 53 63 66 69 60 44 41 53 64 70 73 77 74 71 68 81 77 80 84 87
WIND DIR W W NW NW NW NW W W W W W W SW S S S S NE NE NE NE
WIND SPD 31 35 32 26 16 13 11 10 6 5 5 5 5 5 5 5 5 8 10 12 14
WIND GUST 43 36
CLOUDS SC SC SC FW SC SC SC SC SC SC B1 B2 B2 OV OV OV OV OV OV OV OV
CLOUDS(%) 48 32 40 18 30 32 32 36 28 43 63 80 82 93 95 94 96 97 98 99100
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 5 0 40 70
SNOW C C L L L L D
MIX HGT <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 <1 2 2 <1
T WIND DIR W NW NW NW NW NW NW W W NW SW SW SE S S SW S
T WIND SPD 34 32 32 27 19 17 12 10 5 4 1 2 2 6 9 5 3
DISPERSION GD GD GD GD PR PR PR PR PR PR FR FR
ADI 31 29 29 25 23 27 29 22 4 3 1 2 3 8 18 10 2
MAX LVORI 1 2 2 3 3 2 2 2 2 3 4 3 4 3 3 3 5
STABILITY D D D D D D C C E E E E D D D D E
CEILING None None None None None 2800 2600 200 200
STA PRES 26.60 26.64 26.71 26.69 26.69 26.67 26.67 26.62
Date 01/31Sun 02/01/26Mon 02/02/26Tue 02/03/26Wed 02/04/26
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 14 2 11 5 23 13 30 19 36
TEMP 12 8 5 2 8 10 8 6 21 17 17 17 27 25 22 23 31 28
DEWPT 6 -1 -3 -4 -1 0 0 -1 8 10 9 12 18 18 17 17 22 21
RH 76 66 69 75 66 63 69 72 56 73 70 80 68 74 81 77 69 75
WIND SPD 15> 15> 15> 15> 15> 15> <15 <15 <15
AVG CLOUDS OV OV B2 B2 B1 SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1
POP 12HR 80 40 5 0 5 0 0 10 20
RAIN S
SNOW D L C S 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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