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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Sun Feb 1 2026
VAZ018-020900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EST Sun Feb 1 2026
Date 02/01/26 Mon 02/02/26 Tue 02/03/26 Wed
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 9 32 19 40 30
TEMP 11 11 10 11 22 30 31 24 21 20 22 23 31 37 38 33 34 32 32 32
DEWPT 3 3 2 1 7 11 14 14 14 15 18 19 23 26 27 27 28 28 28 28
MIN/MAX RH 71 44 85 61 87
RH 69 69 69 63 52 44 49 65 74 81 84 84 72 64 64 78 78 85 85 85
WIND DIR NW NW NW NW NW W W W W W W W W W SW S SW W W NW
WIND SPD 9 6 6 5 4 4 4 2 2 2 2 3 3 4 2 1 1 1 2 2
WIND GUST 33 27 23 19 16 14 14 13 12 13 14 14 14
CLOUDS FW FW FW FW FW SC SC SC SC SC B2 B2 B1 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%) 10 17 10 7 10 37 45 32 29 50 70 76 59 73 78 82 86 87 83 79
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 6 6 2 2 3 5
POP 12HR 0 0 0 20 60
RAIN C L C S
SNOW C L C C S
MIX HGT <1 <1 <1 <1 <1 2 2 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR NW NW NW NW NW W W W W W W W W W SW SE
T WIND SPD 18 16 14 9 12 14 12 9 13 8 5 9 18 9 6 3
DISPERSION PR PR PR VP VP VP VP VP VP VP VP
ADI 12 7 7 10 16 35 39 4 6 4 3 7 49 26 16 2
MAX LVORI 3 3 3 3 2 1 1 3 3 5 5 4 3 2 2 4
STABILITY E F F B B B B G G F F C C D C F
CEILING None None None None 2000 1900 6900 7100
STA PRES 27.83 27.87 27.83 27.86 27.88 27.89 27.84
Date 02/04Thu 02/05/26Fri 02/06/26Sat 02/07/26Sun 02/08/26
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 39 17 32 18 40 17 25 12 33
TEMP 38 30 23 18 30 23 19 21 38 35 28 19 23 18 14 14 30 24
DEWPT 30 23 17 11 13 12 11 14 26 25 18 8 5 4 3 4 11 13
RH 73 75 77 73 49 62 70 74 62 66 66 61 45 53 61 64 44 62
WIND SPD <15 <15 <15 <15 <15 15> <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 SC FW SC SC B1 B1 B1 SC SC FW FW SC SC SC
POP 12HR 20 10 5 5 40 20 5 5 10
RAIN S C S
SNOW S 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