Official NWS Observations By Dr. Greg Latta, Official NWS Observer April, 1999 ------------------------------------------------------------------------ Temperatures: TMax = Maximum temperature between 7 A.M. the previous day and 7 A.M. on the day indicated. TMin = Minimum temperature between 7 A.M. the previous day and 7 A.M. on the day indicated. TCur = Current temperature at 7 A.M. on the day indicated. All temperatures are in degrees Fahrenheit Month Day Year TMax TMin TCur 4 1 1999 74 36 47 4 2 1999 57 47 53 4 3 1999 65 47 51 4 4 1999 77 51 59 4 5 1999 69 37 37 4 6 1999 45 35 36 4 7 1999 68 36 46 4 8 1999 67 44 57 4 9 1999 77 48 48 4 10 1999 53 37 37 4 11 1999 60 36 38 4 12 1999 46 37 39 4 13 1999 47 31 31 4 14 1999 55 31 34 4 15 1999 62 34 39 4 16 1999 51 39 45 4 17 1999 55 38 39 4 18 1999 47 36 36 4 19 1999 45 35 36 4 20 1999 49 36 37 4 21 1999 48 33 38 4 22 1999 49 38 42 4 23 1999 80 42 57 4 24 1999 65 29 31 4 25 1999 59 29 30 4 26 1999 63 30 35 4 27 1999 70 35 39 4 28 1999 66 39 45 4 29 1999 64 37 38 4 30 1999 62 37 43 ----------------------------------------------------------------------- Precipitation Amounts and Current Weather: RainEq = Rain or rain equivalent of melted snow, sleet, or ice. SnowEtc = Amount of snowfall between 7 A.M. the previous day and 7 A.M. on the day indicated. SnowOnGround = Total average amount of snow on the ground at 7 A.M. on the day indicated. All precipitation amounts are in inches. 0.001 inches = Trace Current Weather = Current weather at 7 A.M. on the day indicated. See the chart below for a list of weather codes and their meanings. If more than one code applies the higher code is always used. Month Day Year RainEq SnowEtc SnowOnGround Current X.XX X.X X Weather 4 1 1999 0.050 0.000 0.000 3 4 2 1999 0.220 0.000 0.000 10 4 3 1999 0.001 0.000 0.000 45 4 4 1999 0.030 0.000 0.000 2 4 5 1999 0.420 0.000 0.000 51 4 6 1999 0.001 0.000 0.000 1 4 7 1999 0.010 0.000 0.000 2 4 8 1999 0.000 0.000 0.000 1 4 9 1999 0.400 0.000 0.000 3 4 10 1999 1.240 0.000 0.000 3 4 11 1999 0.410 0.000 0.000 65 4 12 1999 0.920 0.000 0.000 53 4 13 1999 0.020 0.000 0.000 1 4 14 1999 0.000 0.000 0.000 1 4 15 1999 0.000 0.000 0.000 3 4 16 1999 0.470 0.000 0.000 2 4 17 1999 0.001 0.000 0.000 2 4 18 1999 0.070 0.000 0.000 61 4 19 1999 0.100 0.000 0.000 61 4 20 1999 0.320 0.001 0.000 3 4 21 1999 0.001 0.000 0.000 3 4 22 1999 0.190 0.000 0.000 45 4 23 1999 0.000 0.000 0.000 3 4 24 1999 0.720 0.000 0.000 1 4 25 1999 0.000 0.000 0.000 1 4 26 1999 0.000 0.000 0.000 1 4 27 1999 0.000 0.000 0.000 1 4 28 1999 0.000 0.000 0.000 3 4 29 1999 0.000 0.000 0.000 1 4 30 1999 0.000 0.000 0.000 1 Weather codes: 01 Clear Sky (few or no clouds) 02 Partly Cloudy 03 Mostly Cloudy/Cloudy (little or no blue sky or stars) 04 Smoke (resulting from forest fires) 05 Haze 07 Dust and/or Sand raised by the wind 10 Light fog (visibility greater than 1/2 mile) 13 Lightning (with no thunder heard) 17 Thunderstorm (with no rain or snow) 45 Fog (visibility less than 1/2 mile) 51 Drizzle (light) 53 Drizzle (moderate) 55 Drizzle (heavy) 61 Rain (light) 63 Rain (moderate) 65 Rain (heavy) 66 Rain (freezing) 68 Rain and Snow Mixed 71 Snow (light) 73 Snow (moderate) 75 Snow (heavy) 79 Sleet 80 Rain Showers 83 Mixed Showers of Rain and Snow 85 Snow Showers (light) 86 Snow Showers (moderate or heavy) 89 Hail (no thunder heard) 93 Thunderstorm with Rain 94 Thunderstorm with Snow 95 Thunderstorm with Rain and Snow 96 Thunderstorm with hail smaller than dime sized 97 Thunderstorm with heavy rain and/or heavy snow 99 Thunderstorm with hail larger than a dime ----------------------------------------------------------------------- Other Observations: A "1" indicates that the condition occurred somewhere between 7 A.M. the previous day and 7 A.M. on the day indicated. Month Day Year Fog Ice Glaze Thunder Hail Damaging Pellets Winds 4 1 1999 0 0 0 0 0 0 4 2 1999 1 0 0 0 0 0 4 3 1999 1 0 0 0 0 0 4 4 1999 1 0 0 0 0 0 4 5 1999 1 0 0 1 0 0 4 6 1999 1 0 0 0 0 0 4 7 1999 0 0 0 1 0 0 4 8 1999 0 0 0 0 0 0 4 9 1999 0 0 0 1 0 0 4 10 1999 1 0 0 1 0 0 4 11 1999 1 0 0 1 0 0 4 12 1999 1 0 0 1 0 0 4 13 1999 0 0 0 0 0 0 4 14 1999 0 0 0 0 0 0 4 15 1999 0 0 0 0 0 0 4 16 1999 0 0 0 0 0 0 4 17 1999 0 0 0 0 0 0 4 18 1999 0 0 0 0 0 0 4 19 1999 0 0 0 0 0 0 4 20 1999 1 1 0 0 0 0 4 21 1999 1 0 0 0 0 0 4 22 1999 1 0 0 0 0 0 4 23 1999 1 0 0 0 0 0 4 24 1999 0 0 0 1 0 0 4 25 1999 0 0 0 0 0 0 4 26 1999 0 0 0 0 0 0 4 27 1999 0 0 0 0 0 0 4 28 1999 0 0 0 0 0 0 4 29 1999 0 0 0 0 0 0 4 30 1999 0 0 0 0 0 0