
A significant winter storm will likely impact our area this weekend. The winter storm will be followed by very cold temperatures early next week. Read More >
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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EST Thu Jan 22 2026
NCZ001-230900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
501 PM EST Thu Jan 22 2026
Date 01/22/26 Fri 01/23/26 Sat 01/24/26 Sun
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 29 35 18 20 14
TEMP 34 31 29 29 29 32 35 34 26 23 21 20 19 18 19 17 15 15 15 17 20
DEWPT 16 13 12 10 10 11 12 11 10 8 6 5 5 6 6 9 10 10 11 14 16
MIN/MAX RH 62 37 56 51 90
RH 47 47 48 44 44 41 38 38 50 52 52 51 54 59 56 70 80 80 84 88 84
WIND DIR NW W W W W NW NW NW NW NW NW N E S SE SE SE SE SE SE SE
WIND SPD 9 6 5 5 5 5 8 11 13 13 10 6 4 4 10 12 18 18 17 16 16
CLOUDS SC SC SC B1 B2 B1 B1 B1 B1 B1 B1 B1 B2 OV OV OV OV OV OV OV OV
CLOUDS(%) 43 40 44 60 77 68 58 57 55 54 52 65 78 89 94 94100100 99 99100
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 4 1 1 1 1 2 3
POP 12HR 0 0 5 70 100
FRZG RAIN D
SLEET S L D D D D S
SNOW L L S
MIX HGT <1 <1 <1 <1 <1 <1 2 2 <1 <1 <1 <1 <1 <1 1 <1 <1
T WIND DIR NW NW NW NW NW W NW NW NW NW NW N E SE SE SE SE
T WIND SPD 8 8 5 3 2 1 4 12 14 13 11 6 3 6 9 12 12
DISPERSION PR PR PR PR FR FR FR PR GD GD GD GD
ADI 5 5 5 3 3 1 9 23 13 12 10 6 4 8 13 15 11
MAX LVORI 3 3 3 2 3 2 2 2 2 2 2 2 2 2 2 3 4
STABILITY E E D D D D D D D D D D D D D D D
CEILING None 3500 2800 None None 10300 9800 800 400
STA PRES 26.78 26.77 26.81 26.80 26.85 26.86 26.92 26.85
Date 01/25Mon 01/26/26Tue 01/27/26Wed 01/28/26Thu 01/29/26
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 11 15 1 23 14 28 13 21
TEMP 23 30 28 15 12 9 4 4 19 18 16 17 25 23 18 14 20 14
DEWPT 23 28 24 12 5 -1 -5 -7 5 5 6 8 13 14 11 8 10 6
RH 100 92 85 88 73 63 65 59 54 56 64 67 60 68 73 76 64 70
WIND SPD <15 15> 15> 15> 15> 15> 15> 15> 15>
AVG CLOUDS OV OV B2 B2 B1 B1 SC FW FW FW FW SC SC B1 B1 B1 SC SC
POP 12HR 100 70 10 5 0 0 10 20 10
FRZG RAIN D D
SLEET S
SNOW L 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