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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 PM EDT Mon Apr 27 2026
NCZ003-272000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
1201 PM EDT Mon Apr 27 2026
Date Mon 04/27/26 Tue 04/28/26 Wed 04/29/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 71 45 67 54 72
TEMP 68 70 65 57 51 47 48 55 61 66 65 59 56 54 56 62 67 71 68
DEWPT 43 42 42 43 44 44 44 50 53 54 55 55 54 54 55 59 61 62 59
MAX/MIN RH 36 92 64 98 71
RH 40 36 43 59 77 89 86 83 75 65 70 87 93100 96 90 81 73 73
WIND DIR E E E SE SE SE S SW SW SW S SW SW SW S S S SW W
WIND SPD 5 5 5 5 5 4 2 5 6 6 4 4 3 3 3 5 8 9 9
WIND GUST 18
CLOUDS FW FW SC SC SC B1 B2 OV B2 B1 SC B1 B1 B2 OV OV OV OV B1
CLOUDS(%) 14 23 28 38 34 59 77 89 83 69 39 55 63 71 98 98 94 94 59
VSBY 10 10 10 10 10 10 10 6 8 10 10 10 9
POP 12HR 0 20 70 40 100
RAIN SHWRS SC SC SC IS SC SC O O O O SC
TSTMS IS IS IS SC SC
MIX HGT 4 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR E E E E SE SE S NE S SW S SW SW S S S SW W W
T WIND SPD 8 8 8 4 4 8 6 2 6 11 6 8 6 4 5 18 23 28 10
DISPERSION PR PR PR VP VP VP VP VP PR
ADI 38 43 4 2 3 4 9 5 21 40 5 5 3 2 6 41 51 74 9
MAX LVORI 1 1 2 3 4 6 5 5 3 1 3 5 6 9 6 4 3 3 3
STABILITY A A F F E F B C C C E E F F B C C C D
CEILING None None 13200 2800 600 None 400 300 1900
STA PRES 29.11 29.13 29.12 29.14 29.04 29.01 28.87 28.74 28.65
Date Thu 04/30/26Fri 05/01/26Sat 05/02/26Sun 05/03/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 51 67 42 68 44 65 39 68
TEMP 57 52 64 61 47 45 66 62 49 45 61 58 44 43 65 62
DEWPT 52 46 38 34 34 34 36 38 40 38 37 34 33 33 33 36
RH 83 80 38 36 60 65 33 41 71 76 41 40 65 67 30 38
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC FW SC FW SC B1 B1 B1 SC SC FW FW FW
POP 12HR 40 10 10 20 30 30 10 10
RAIN SHWRS SC IS IS SC SC SC IS
$$
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