EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Mon Apr 20 2026
MDZ022-210800-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 PM EDT Mon Apr 20 2026
Date 04/20/26 Tue 04/21/26 Wed 04/22/26 Thu
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 30 59 45 70 51
TEMP 48 40 37 32 37 50 56 57 50 46 47 50 56 63 68 69 64 58 54 52 54
DEWPT 24 24 24 24 25 20 20 26 30 35 38 41 43 46 48 50 53 53 51 50 51
MAX/MIN RH 76 24 71 49 94
RH 39 51 59 73 61 30 24 30 45 64 70 71 62 54 49 51 67 85 90 94 89
WIND DIR NW N N N N N NW S S S S S SW SW W W W NW NW NW N
WIND DIR DEG 33 34 35 00 01 34 30 16 16 17 17 19 21 23 25 27 28 30 33 33 35
WIND SPD 6 5 4 4 3 3 3 4 5 5 8 9 11 10 9 6 2 2 2 2 3
CLOUDS FW CL CL FW CL CL CL CL CL FW B1 B2 B2 B2 B1 B1 SC SC FW FW FW
CLOUDS(%) 12 3 4 7 5 4 3 5 5 25 62 71 71 76 68 62 45 26 14 18 23
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 10 40 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C
MIX HGT 500 800 5600 5600 500 1200 2200 2600 500 1000
T WIND DIR NW N NW SW S S W W NE E
T WIND SPD 8 6 6 8 11 18 11 11 6 8
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 7 12 47 58 15 25 36 46 5 5
MAX LVORI 3 4 2 2 3 3 2 3 6 8
STABILITY F F A A F D C C F F
CEILING 30000 18200 20800 13800 8900 7200 14800 4000 3200 25700
PRESSURE 30.21 30.27 30.35 30.26 30.23 30.13 30.03 29.96 29.96 29.95
Date 04/23Fri 04/24/26Sat 04/25/26Sun 04/26/26Mon 04/27/26
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 74 51 74 53 71 53 66 48 66
TEMP 72 63 54 56 73 63 56 57 68 60 55 54 64 58 52 53 64 60
DEWPT 49 49 49 50 50 52 51 53 55 53 52 52 50 49 47 49 51 51
MIN/MAX RH 42 86 44 90 58 94 56 92 58
RH 45 60 83 80 45 66 83 86 63 77 90 92 60 73 82 87 63 73
WIND DIR NW SE SW E E SE SE E E E NE NE NE E E E E SE
WIND SPD 4 2 2 3 6 3 3 4 8 6 4 5 9 5 3 4 8 4
AVG CLOUDS FW FW FW SC SC SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1
POP 12HR 0 0 5 20 40 50 30 30 30
RAIN SHWRS S S S C C C C C C C S C
$$
MDZ025-210800-
Assateague Island RAWS - Worchester MD
38.08N 75.20W Elev. 12 ft
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
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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