Power Pacific system will continue to bring significant impacts for Pacific Northwest into northern California the remainder of the week. Dangerous coastal affects, heavy rain, flooding, strong winds, and higher elevation mountain snow continues. Meanwhile, a storm across the east is set to bring the first accumulating snow to many higher elevations of the Catskills into the central Appalachians. Read More >
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
410 PM EST Thu Nov 21 2024
MDZ022-220900-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
410 PM EST Thu Nov 21 2024
Date 11/21/24 Fri 11/22/24 Sat 11/23/24 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
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 33 48 36 56 39
TEMP 43 41 39 35 36 41 46 46 42 39 38 37 37 47 54 53 47 44 42 41 40
DEWPT 35 34 32 29 28 29 30 33 36 36 36 36 36 37 38 39 39 38 36 36 35
MAX/MIN RH 81 53 96 54 84
RH 73 77 77 78 71 62 53 60 79 89 92 96 94 68 56 59 74 78 78 81 81
WIND DIR W W W W W W SW W W W W NW NW NW NW W W W W W W
WIND DIR DEG 29 26 27 27 26 25 24 25 25 27 28 31 30 31 30 29 28 28 28 28 27
WIND SPD 6 6 8 9 8 11 12 13 12 12 11 11 10 13 14 14 10 9 9 8 9
CLOUDS B1 SC SC SC SC SC B2 B2 OV B2 B1 B1 SC SC SC SC SC SC FW SC SC
CLOUDS(%) 58 41 27 31 26 46 73 83 93 80 67 51 35 36 37 36 36 31 25 27 29
VSBY 7 7 7 7 7 7 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 20 70 50 0 0
QPF 12HR 0 0.09 0.06 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S S S C
RAIN SHWRS L L C C
LAL 1 1 1 1 1 1 1 1 1 1
HAINES 3 3 4 4 3 4 4 4 3 4
MIX HGT 500 700 4500 4000 1700 1600 4400 4100 800 500
T WIND DIR W W W W W NW NW W W W
T WIND SPD 6 18 20 25 25 25 24 23 12 9
SMOKE DISP PR PR GD GD PR PR GD GD PR PR
ADI 10 15 73 71 29 31 64 75 12 10
MAX LVORI 4 4 3 3 4 5 4 4 4 5
STABILITY D E D D D D D D E E
CEILING 4700 2400 5500 13800 1700 1700 30000 30000 3200 30000
PRESSURE 29.55 29.5 29.51 29.43 29.42 29.5 29.70 29.76 29.86 29.95
Date 11/24Mon 11/25/24Tue 11/26/24Wed 11/27/24Thu 11/28/24
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 56 38 62 47 63 37 51 32 51
TEMP 54 46 42 39 59 54 50 48 61 49 42 38 50 41 36 33 49 41
DEWPT 37 38 38 37 42 45 45 47 44 36 32 31 31 32 31 32 35 36
MIN/MAX RH 49 92 50 94 44 75 46 92 55
RH 52 73 86 92 54 70 83 96 52 59 66 75 49 71 80 95 59 85
WIND DIR W W W SW SW S SW SW NW NW NW NW W NW NW N N N
WIND SPD 12 4 3 3 8 5 10 10 14 9 6 5 10 4 3 3 8 8
AVG CLOUDS FW FW FW FW FW SC SC B1 B1 SC SC SC SC SC SC B1 B1 B1
POP 12HR 0 0 0 10 10 5 10 20 30
RAIN S S S C
$$
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