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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Thu Apr 25 2024

NCZ001-260800-
RAWS 310141
36.40N  81.29W Elev. 3009 ft
431 PM EDT Thu Apr 25 2024

Date           04/25/24      Fri 04/26/24            Sat 04/27/24            Sun
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08

MIN/MAX TEMP                 44          54          48          63          51
TEMP          62 56 51 49 46 45 47 51 52 52 51 51 50 49 54 60 63 60 57 54 51 53
DEWPT         35 37 37 39 43 42 43 44 44 45 45 46 47 46 48 48 47 47 47 49 48 49
MIN/MAX RH                   95          73          93          56          89
RH            36 49 59 68 89 89 86 77 74 77 80 83 89 89 80 64 56 62 69 83 89 86
WIND DIR       S SE SE SE SE SE SE SE SE SE SE SE SE SE  S  S  S  S  S  S  S  S
WIND SPD       5  4  4  5  5  6  8  9  9  8  8  8  9  8 10 10 10  9  6  5  5  4
CLOUDS        FW FW FW B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 SC SC SC
CLOUDS(%)     10 13 25 63 70 86 80 81 75 79 77 84 85 81 79 80 67 71 60 50 43 40
VSBY          10 10 10 10  7  7  6  8  8  6  6  8 10 10 10 10 10 10 10 10 10 10
POP 12HR                     10          30          20           5           0
RAIN SHWRS                      IS    IS IS IS IS IS                           
SPRINKLES              SC SC SC    SC                                          
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
HAINES         5  5  5  4  3  3  3  3  3  3  3  3  3  3  2  2  3  3            
MIX HGT        6 <1 <1 <1 <1  1  1  2  2 <1 <1 <1 <1 <1  2  3  3 <1 <1 <1 <1 <1
T WIND DIR     W SE  E  E  E SE SE SE SE SE SE SE  S  S  S  S  S  S  S  S  S SW
T WIND SPD     3  6  3 11 10  9  8  6  6  9 12  9  9 16 20 18 16 13 11 12 10 10
DISPERSION       VP VP PR PR             PR PR PR PR             PR PR PR PR   
ADI           27  3  2  8  7 12 13 14 16  8 11  8  8 12 47 56 54 12            
MAX LVORI      2  2  3  3  5  4  4  4  3  4  4  4  5  5  3  1  1  2            
STABILITY      A  F  F  E  E  C  C  C  C  D  D  D  D  C  C  C  C  D            
CEILING              None   500   600   600   600   600   600  2200  2200      
STA PRES            27.35 27.39 27.47 27.45 27.48 27.48 27.54 27.50            


Date           04/28Mon 04/29/24Tue 04/30/24Wed 05/01/24Thu 05/02/24
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MAX/MIN TEMP       71      51      76      54      73      55      76      55      71
TEMP          69 65 54 55 74 69 57 57 72 65 57 58 75 67 58 58 70 63
DEWPT         50 48 48 49 49 48 48 49 53 52 51 52 50 51 50 49 47 43
RH            51 54 80 80 41 47 72 75 51 63 80 80 41 56 75 72 44 48
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW CL FW FW FW FW SC SC B1 SC FW FW FW SC SC SC SC
POP 12HR            5       0       0       5      50      20      30      10      30
RAIN SHWRS                            SC SC IS    IS SC       IS SC
TSTMS                                 IS SC IS       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
LAL(CATEGORY).......................Lightning Activity Level
HAINES(CATEGORY)....................Haines Index
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