EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE WAKEFIELD VA
510 PM EDT FRI JUN 18 2021
VAZ081-190900-
JAMES RIVER NWR RAWS-PRINCE GEORGE VA
37.25N 77.25W ELEV. 50 FT
510 PM EDT FRI JUN 18 2021
DATE 06/18/21 SAT 06/19/21 SUN 06/20/21 MON
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 69 96 72 92 72
TEMP 81 74 72 70 75 86 92 95 87 79 76 73 77 86 91 91 85 78 75 73 76
DEWPT 59 59 60 61 65 66 65 66 66 66 67 67 67 69 68 68 69 69 70 69 71
MAX/MIN RH 74 40 80 46 90
RH 47 59 66 72 71 52 41 40 50 63 74 80 72 57 47 47 59 75 83 87 85
WIND DIR S S S SW SW W W SW SW SW SW SW SW SW SW SW SW SW S S S
WIND DIR DEG 19 19 20 21 23 25 25 24 22 22 23 23 23 24 23 22 21 21 20 19 18
WIND SPD 6 5 6 5 6 9 9 10 4 4 4 3 5 9 10 10 6 5 4 4 4
CLOUDS FW SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2
CLOUDS(%) 21 35 36 41 39 32 37 42 44 38 47 49 52 56 58 58 59 59 68 73 80
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 10 20 10 20 30
QPF 12HR 0 0 0 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S S C C C
TSTMS S S S S S S S
LAL 1 1 2 2 1 1 2 2 2 2
HAINES 5 5 5 5 4 4 4 5 4 4
MIX HGT 800 900 6100 5800 1200 1300 5800 5800 900 1500
T WIND DIR S SW W NW E SW SW SW SW S
T WIND SPD 9 10 13 9 3 11 19 18 12 10
SMOKE DISP PR PR GD GD PR PR VG VG PR PR
ADI 7 13 55 44 4 20 67 75 13 14
MAX LVORI 3 4 2 2 3 4 3 2 5 5
STABILITY B F F B B F E C B E
CEILING 15900 11700 9800 7200 6300 17500 15900 11200 4700 11700
PRESSURE 29.82 29.80 29.78 29.70 29.75 29.76 29.77 29.71 29.73 29.73
DATE 06/21 TUE 06/22/21 WED 06/23/21 THU 06/24/21 FRI 06/25/21
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 87 73 89 62 78 58 83 60 84
TEMP 87 82 75 77 87 80 68 66 77 71 62 64 81 74 64 65 82 77
DEWPT 71 72 71 72 71 69 65 60 56 55 55 58 56 59 59 62 61 63
MIN/MAX RH 59 90 54 90 45 92 41 100 47
RH 60 71 87 85 59 69 90 81 48 58 78 82 43 60 86 90 49 63
WIND DIR S S SW SW SW NW NW N N E E N E SE SE E SE SE
WIND SPD 6 4 4 6 10 4 3 5 5 3 1 3 3 3 2 2 4 3
AVG CLOUDS B2 B1 SC SC SC B1 B1 B1 SC FW FW FW FW FW FW SC SC SC
POP 12HR 40 20 60 50 20 10 10 10 20
RAIN SHWRS C C S S L C C S S
TSTMS S C S L C S
$$
EXPERIMENTAL ONLY...THIS PRODUCT IS FOR PLANNING AND REVIEW PURPOSES ONLY AND
IS NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT
FORECAST.
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 HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
RELATIVE TO DUE NORTH.
EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
VSBY................................VISIBILITY VALUE IN STATUTE MILES
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
O..............OCCASIONAL
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
AF.............VOLCANIC ASHFALL
LAL(CAT)............................LIGHTNING ACTIVITY LEVEL
HAINES(CAT).........................HAINES INDEX
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISPERSION....................SMOKE DISPERSION CATEGORY
VALUES: VP = VERY POOR; PR = POOR; FR = FAIR; GD = GOOD
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
PRESSURE (INCHES MERCURY)...........STATION PRESSURE
MAX LVORI (INDEX)...................LOW VISIBILITY OCCURRENCE RISK INDEX
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
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 DIR............................20 FT. WIND DIRECTION
WIND SPD(MPH).......................20 FT. WIND SPEED
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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