
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
1231 AM EST Thu Jan 22 2026
NCZ003-230900-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1231 AM EST Thu Jan 22 2026
Date 01/21/26 Thu 01/22/26 Fri 01/23/26 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 30 55 30 47 22
TEMP 35 31 34 44 53 53 42 37 33 31 33 39 45 45 37 32 28 25 23
DEWPT 23 27 30 35 30 28 28 27 25 24 24 26 24 23 20 15 12 12 11
MIN/MAX RH 88 37 75 41 61
RH 61 85 85 70 41 38 57 67 72 75 69 59 43 41 50 49 50 57 59
WIND DIR S W SW W W W W NW NW NW NW NW NW NW N N N N NE
WIND SPD 1 2 2 2 4 2 1 1 1 1 1 2 2 3 3 3 2 2 2
WIND GUST 12 13 13
CLOUDS B2 B1 FW FW FW FW SC SC B1 B2 B2 B2 OV B1 B2 B1 B1 B2 OV
CLOUDS(%) 75 55 24 22 21 22 28 42 58 71 80 81 88 68 70 62 69 83 90
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 0 10 20 30
RAIN S S S S
SNOW C C C
MIX HGT <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 1 3 3 2
T WIND DIR SW SW W NW W W NW NW NW N N N S NW N
T WIND SPD 3 3 2 6 8 10 6 6 6 6 4 3 3 2 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 18 27 37 3 3 3 3 5 5 10 7 5
MAX LVORI 3 5 6 3 2 1 3 3 3 4 3 3 2 2 2
STABILITY F F B B C B G F F F B C C C F
CEILING None None None None 18100 10000 3300 6000
STA PRES 28.25 28.26 28.23 28.27 28.27 28.30 28.29
Date 01/24Sun 01/25/26Mon 01/26/26Tue 01/27/26Wed 01/28/26
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 28 13 29 15 29 4 32 10 37
TEMP 25 20 15 17 23 28 25 17 26 18 10 5 28 23 13 12 33 28
DEWPT 15 13 12 15 21 23 21 14 14 7 1 -1 11 10 6 6 19 17
RH 65 74 88 92 92 81 84 88 60 61 66 76 48 57 73 76 56 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV OV OV OV B2 B2 B1 SC SC FW FW FW FW FW SC SC SC
POP 12HR 90 100 90 50 5 5 0 0 5
SLEET S S D L
SNOW C D D D D 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