EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE WAKEFIELD VA
510 PM EDT FRI JUN 18 2021
VAZ096-190900-
GREAT DISMAL SWAMP RAWS-SUFFOLK VA
36.61N 76.55W ELEV. 35 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 68 95 73 91 73
TEMP 79 72 70 69 74 86 92 94 88 79 76 74 77 85 90 91 85 78 76 74 76
DEWPT 61 63 64 64 67 69 67 68 69 68 68 66 67 69 69 68 69 69 70 71 73
MAX/MIN RH 84 42 76 47 91
RH 53 73 81 84 79 57 44 43 54 69 76 76 71 59 50 47 59 74 82 91 91
WIND DIR S S S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW S S S
WIND DIR DEG 17 18 20 21 23 24 24 23 21 22 23 24 24 24 23 23 22 21 20 19 18
WIND SPD 5 6 5 5 9 10 10 11 5 6 5 5 8 10 11 12 8 5 4 5 6
CLOUDS FW FW SC SC FW FW FW SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2
CLOUDS(%) 15 21 28 29 23 19 20 34 31 31 42 48 51 57 66 57 63 59 67 73 79
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 5 5 10 20 40
QPF 12HR 0 0 0 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S C C C
TSTMS S S S S S
LAL 1 1 1 1 1 1 2 2 2 2
HAINES 5 4 4 4 4 5 4 5 5 4
MIX HGT 700 1100 5800 5900 1000 1400 4900 4900 900 1600
T WIND DIR S SW W SW SW SW W SW SW S
T WIND SPD 9 12 18 14 8 11 25 20 10 11
SMOKE DISP PR PR VG VG PR PR GD VG PR PR
ADI 7 21 67 69 7 31 70 75 11 27
MAX LVORI 4 5 3 3 4 4 3 2 5 6
STABILITY B F E B B F D C B E
CEILING 30000 5500 6300 5500 14800 15900 6300 17100 11700 9400
PRESSURE 29.92 29.89 29.87 29.78 29.80 29.84 29.88 29.82 29.84 29.82
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 86 73 89 64 78 60 80 61 83
TEMP 86 82 75 77 87 80 70 68 77 72 63 65 78 73 64 65 81 76
DEWPT 73 72 71 74 73 70 68 65 61 58 58 61 59 60 61 65 64 65
MIN/MAX RH 63 96 57 98 54 90 49 100 53
RH 65 72 87 90 63 72 93 90 58 61 83 87 52 64 90100 56 69
WIND DIR S SW SW SW SW W NW N N E E NE E E E NE E SE
WIND SPD 10 5 5 9 11 5 3 5 5 3 1 3 5 4 2 2 4 4
AVG CLOUDS B2 B1 SC SC SC B1 B1 B1 B1 SC FW SC FW FW FW SC SC B1
POP 12HR 50 20 60 60 20 10 10 10 20
RAIN SHWRS C C S S L L C S S S
TSTMS S C S L L S 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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