EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
410 PM EST Tue Jan 21 2025
VAZ098-220900-
Back Bay NWR RAWS-Virginia Beach VA
36.68N 75.93W Elev. 8 ft
410 PM EST Tue Jan 21 2025
Date 01/21/25 Wed 01/22/25 Thu 01/23/25 Fri
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX 24 30 24 38 29
TEMP 27 26 26 25 24 27 29 29 27 26 25 25 25 31 36 37 33 31 30 30 30
DEWPT 15 21 22 19 16 16 16 15 16 18 21 24 25 28 25 22 20 20 20 21 22
MAX/MIN RH 85 55 100 54 74
RH 59 81 85 78 71 63 57 57 63 72 85 96 99 87 65 54 58 63 65 71 73
WIND DIR N N N N N N N N N NE NE N N NW NW NW NW NW NW N N
WIND DIR DEG 00 00 00 00 01 01 00 00 01 03 03 01 00 33 32 31 30 31 33 34 00
WIND SPD 12 13 14 16 19 17 14 11 9 8 6 6 8 9 9 6 6 6 8 9 10
CLOUDS OV OV OV OV OV B1 FW FW FW SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1
CLOUDS(%) 100100100 99 88 66 21 12 9 27 35 52 70 81 81 79 78 55 56 53 53
VSBY 6 2 2 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 90 10 5 20 10
QPF 12HR 0.22 0 0 0 0
SNOW 12HR 4 00-00 00-00
FRZG RAIN S S
RAIN S S S
SNOW L D D C
LAL 1 1 1 1 1 1 1 1 1 1
HAINES 2 4 4 4 4 2 2 4 4 5
MIX HGT 2600 2700 4200 3900 2000 1500 1500 1400 700 1500
T WIND DIR N N N N NE NE N NW NW NW
T WIND SPD 21 31 26 19 14 12 12 11 10 13
SMOKE DISP FR GD GD GD PR PR PR PR PR PR
ADI 36 75 78 59 11 18 24 23 11 34
MAX LVORI 4 4 1 3 5 7 5 3 3 3
STABILITY D D D D E D D D D D
CEILING 6300 4700 9600 30000 30000 1700 1000 3200 19200 23500
PRESSURE 30.45 30.40 30.40 30.43 30.44 30.36 30.32 30.21 30.18 30.18
Date 01/24Sat 01/25/25Sun 01/26/25Mon 01/27/25Tue 01/28/25
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN 38 27 40 30 47 35 46 33 45
TEMP 37 32 29 28 38 35 32 31 45 41 38 36 45 39 36 34 43 39
DEWPT 23 22 22 21 21 23 25 25 30 31 31 32 36 35 33 30 29 28
MIN/MAX RH 53 78 49 77 52 84 67 95 50
RH 56 66 75 77 51 62 73 76 54 66 77 85 70 83 92 86 56 64
WIND DIR N N N NW NW SW SW SW SW SW W W SW SW W W NW W
WIND SPD 10 8 9 8 6 6 10 10 10 6 5 6 10 6 9 10 10 8
AVG CLOUDS SC SC SC FW FW FW SC B1 B1 B1 B1 B2 B2 B2 B1 B1 SC FW
POP 12HR 0 0 0 0 0 20 40 20 10
RAIN S C C 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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