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

VAZ024-252000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
301 AM EDT Thu Apr 25 2024

Date             Thu 04/25/24            Fri 04/26/24            Sat 04/27/24
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          46          60          48          65
TEMP          46 48 58 65 67 60 54 49 47 48 52 57 60 57 53 51 49 49 55 61 64 62
DEWPT         39 40 43 41 41 41 42 41 40 42 41 42 43 44 44 44 44 44 46 49 50 51
MAX/MIN RH                   39          83          54          85          61
RH            76 74 57 41 39 49 64 74 76 80 66 57 53 62 71 77 83 83 72 65 60 67
WIND DIR       N  N  E SE SE  E  E  E  E  E  E SE SE SE  E  E  E  E SE SE  S  S
WIND SPD       3  4  4  5  6  8  9  6  4  4  5  6  5  5  4  5  4  3  4  6  6  5
CLOUDS        SC SC SC SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV OV OV B2 B2 B2
CLOUDS(%)     40 38 32 29 39 57 65 65 76 83 80 78 83 81 88 90 92 94 90 85 85 76
VSBY          10 10 10 10 10 10 10  7 10 10 10 10 10 10 10  7  7               
POP 12HR                      0          10          10          20          20
DRIZZLE                             C                                          
RAIN                                                        S  S  S  S         
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES         5  3  3  4  4  4  4  3  3  2  2  3  3  2  2  2  2  3  3  3  3  3
MIX HGT       <1  1  4  6  6  1 <1  1 <1  1  3  3  3 <1 <1 <1 <1  1  2  2  2 <1
T WIND DIR    NE NE  E  E  E  E  E  E  E  E  E SE SE  E  E SE SE SE  S  S  S SE
T WIND SPD     4  8  2  3  5 12 13 11  6  6  5  9  8  5  5  9 11  9  8 12 12  5
DISPERSION    VP             PR PR PR VP             PR VP PR VP             PR
ADI            2 12 11 25 37 11 12  8  5 12 17 32 28  4  4  6  8 13 16 34 33  4
MAX LVORI      4  3  2  2  1  2  2  3  4  4  3  1  2  3  3  4  4  4  3  3  1  3
STABILITY      G  A  A  A  B  D  D  E  E  C  C  C  C  E  E  E  E  B  C  C  C  E
CEILING              None  None  2500  1500  1700  1600   900   600   600   600
STA PRES            28.70 28.68 28.75 28.79 28.84 28.82 28.83 28.84 28.88 28.81


Date          Sun 04/28/24Mon 04/29/24Tue 04/30/24Wed 05/01/24
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       53      81      57      86      60      84      58      82
TEMP          56 58 78 72 61 61 83 76 64 64 81 73 63 62 79 73
DEWPT         50 52 56 56 54 55 56 57 55 56 57 57 56 55 50 52
RH            80 80 47 57 78 81 40 52 73 75 44 57 78 78 36 48
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC FW FW FW FW FW FW SC B1 B2 B1 SC FW FW
POP 12HR            5       5       5       5      10      50      20      10
RAIN SHWRS                                  IS SC IS         
TSTMS                                          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