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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Mon Feb 23 2026
NCZ006-240900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1231 AM EST Mon Feb 23 2026
Date 02/22/26 Mon 02/23/26 Tue 02/24/26 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 29 45 24 46 36
TEMP 32 30 29 37 43 44 36 32 30 27 26 34 42 45 39 37 39 39 39
DEWPT 19 18 17 19 18 17 17 16 15 14 14 14 14 15 17 18 21 22 24
MIN/MAX RH 62 34 63 28 54
RH 58 60 60 48 36 33 45 51 53 57 60 43 31 29 40 46 48 50 54
WIND DIR NW W NW NW NW NW NW NW NW NW NW W W W S S SW SW SW
WIND SPD 11 11 9 13 13 13 8 6 5 5 4 5 5 5 2 5 8 9 8
WIND GUST 25 26 24 29 28 28 18 17 18 19 19
CLOUDS SC FW FW FW SC SC FW FW FW FW FW FW B1 B1 B1 B2 OV OV B2
CLOUDS(%) 28 25 19 25 32 27 21 19 18 23 13 20 60 67 66 72 90 90 85
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 0 0 0 5
RAIN
MIX HGT 1 2 2 5 6 6 1 2 2 2 1 4 4 3 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW W SW S
T WIND SPD 18 27 27 29 28 28 31 25 20 19 19 12 9 10 5
DISPERSION FR FR PR PR PR PR VP PR PR PR
ADI 12 19 69119127 94 21 11 9 9 37 55 45 36 3
MAX LVORI 2 2 1 1 1 1 2 2 2 2 1 1 1 1 2
STABILITY E E C C C D E F F F B B B C F
CEILING None None None None None None 14500 9200
STA PRES 29.27 29.33 29.35 29.44 29.45 29.49 29.39
Date 02/25Thu 02/26/26Fri 02/27/26Sat 02/28/26Sun 03/01/26
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 61 47 62 43 57 34 61 42 65
TEMP 56 53 49 48 59 59 52 44 54 48 39 36 58 52 45 44 61 54
DEWPT 30 34 39 44 50 48 44 38 34 33 32 31 38 38 39 39 41 39
RH 37 48 68 86 72 67 74 79 46 56 76 82 47 59 79 82 48 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC B1 B2 OV OV B2 B2 SC FW FW FW SC FW FW SC B1 SC
POP 12HR 0 20 60 90 30 20 20 20 30
RAIN S C C C S S S S S C C
RAIN SHWRS NM O
$$
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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