National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
432 AM EDT Sun Apr 12 2026

NCZ001-122000-
RAWS 310142
36.40N  81.46W Elev. 4608 ft
432 AM EDT Sun Apr 12 2026

Date             Sun 04/12/26            Mon 04/13/26            Tue 04/14/26
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                 68          52          70          53          73
TEMP          50 50 58 66 66 61 58 57 56 56 62 67 67 62 57 56 55 57 64 70 71 65
DEWPT         43 44 44 44 43 42 42 42 43 42 42 41 42 43 43 43 44 44 47 49 49 49
MAX/MIN RH                   43          61          38          64          45
RH            77 80 59 45 43 49 55 57 62 59 48 39 40 50 59 62 66 62 54 47 46 56
WIND DIR      SE SE  S  S  S  S  S SW SW SW  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD       5  6  9 12 12 12 11 12 12 11 13 12 11  9  9 10 12 13 14 11 11 10
WIND GUST                                                           25         
CLOUDS        CL FW SC SC SC SC SC B1 B1 SC B1 B1 B1 B1 FW FW SC SC SC SC SC SC
CLOUDS(%)      5 19 26 35 28 42 39 54 53 50 65 63 62 60 22 19 27 42 44 49 42 43
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      5           0           5           5          10
MIX HGT       <1 <1  2  5  6 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  3  5  4 <1
T WIND DIR     E  E  S SW  S  S  S  S  S SW  W  W  W  S SW  W  W  W  W SW SW  S
T WIND SPD     2  3 11 17 19  8  6 10  9  5 19 19 14  5  4  5  6 11 11 11 10  8
DISPERSION    PR             FR FR FR FR             PR PR FR FR             FR
ADI            1  4 28 74 87  7  5  9  8  4 66 61 44  5  3  4  6  9 37 49 40  7
MAX LVORI      4  4  2  1  1  2  2  2  3  3  1  1  1  2  3  3  3  3  1  1  1  3
STABILITY      F  B  B  C  C  D  E  D  D  C  C  D  D  D  E  E  D  C  C  C  C  D
CEILING              None  None  None  None  8300  5200  None  None  None  None
STA PRES            26.99 26.96 26.95 26.92 26.93 26.91 26.87 26.85 26.86 26.80


Date          Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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       55      76      56      74      55      74      56      76
TEMP          58 59 73 68 58 58 72 67 59 58 70 67 59 59 74 70
DEWPT         47 45 46 48 47 47 47 48 48 52 49 49 48 49 50 50
RH            67 60 38 49 67 67 41 50 67 80 47 52 67 69 43 49
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC B1 SC SC SC B1 SC SC SC SC SC B1
POP 12HR            0       0       0      10      20      10       5      20
RAIN SHWRS                               IS                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