Warm and humid

Good Morning Augusta.
This morning it is partly cloudy with a chance of a thunderstorm and a
chance of rain in the afternoon. High of 90F. Winds less than 5 mph. Chance
of rain 50%.
Tonight it will be overcast with a chance of rain. Low of 66F. Winds less
than 5 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
The readings outside at this moment taken from my own instruments are:
a relative humidity of 81% with a Dew Point of 70.3º F.
The temperature is 76.5ºF.
Presently we have Southwest winds etween 2.9 MPH and 4.5 MPH.
Our Barometric pressure is 30.00/HPA 1015.9 and falling with a weather
graphic indicating clouds.
UV is 2 out of 16, sunset will be at 8:20 PM with Moon Rise at 2:03 p.m.
Eastern Daylight Time, and the moon phase is Waning Crescent.
For the pilots out there: Raw METAR –
METAR KAUG 151153Z AUTO 05004KT 9SM CLR 23/19 A3008 RMK AO2 SLP185 T02280194
10233 20194 50006
We had no precipitation overnight in this area.
Visibility is 9.0 miles / 14.5 kilometers with a beautiful ceiling.
Since I've begun to post Raw METAR for pilots, folks who are not pilots are
wondering what that is.
METAR is a format for reporting weather information. A METAR weather report
is predominantly used by pilots in fulfillment of a part of a pre-flight
weather briefing, and by meteorologists, who use aggregated METAR
information to assist in weather forecasting.
Raw METAR is the most popular format in the world for the transmission of
weather data. It is highly standardized through International Civil Aviation
Organization (ICAO), which allows it to be understood throughout most of the
world.
If you need a METAR or TAF translater, go to:
http://www.iflightplanner.com/Resources/MetarTafTranslator.aspx
How to read a METAR report
What do these things look like in the raw? And why should you care?
Here's the answer to the first question:
METAR> clt 12z
KCLT 041150Z 33009KT 4SM TS +SHRASHRA BR FEW005 SCT010CB OVC045 19/19 A2999
RMK
OCNL LTGICCG TS N MOV NE SLP152 60072 70072 8/9// T01850185 10220 20185
53017
K=
KCLT 041150Z COR 33009KT 4SM -TSRA BR FEW005 SCT010CB OVC045 19/19 A2999 RMK
OCNL LTGICCG TS N MOV NE SLP152 60072 70072 8/9// T01850185 10220 20185
53017=
KCLT 041216Z 03005KT 5SM -SHRA FEW005 OVC040 18/18 A2999 TSE15 MOV E=
KCLT 041216Z COR 03005KT 5SM -SHRA FEW005 OVC040 18/18 A2999 RMK TSE15 MOV
E=
There are actually four reports here. Each starts with the four-letter
station identifier (CLT preceded by a K) and the date and time. You'll note
that the observations are in pairs, with identical times. Furthermore, the
second observation of each pair includes the letters "COR". What gives?
Those are corrected observations. There was some sort of mistake in the
first, and so a corrected one was sent out. Sometimes the change is trivial,
such as omitting the remarks separator (RMK) at 1216 UTC. Sometimes the
change is significant, like the weather at 1150 UTC. The first report has
both heavy and moderate rain showers, but the correction changes that to a
light shower with thunder. This information was unavailable in the fully
decoded observation, and would have been difficult to figure out in the
table-decoded observations. So if a particular observation is really
important for some reason, look at it in its raw form.
Here's a quick rundown of the important parts of the code. First the
station, then the date and time (Z = GMT), then the wind direction (first
three digits) and speed (last two digits) and the abbreviation KT for knots.
Then the visibility, in SM (statute miles), the present weather (if any),
and the sky cover. The two numbers separated by a slash are the temperature
and dew point, in Celsius. Then comes the altimeter setting, in hundredths
of an inch of mercury, preceded by an A. Finally comes the remarks, which
we've already talked about somewhat.
Now see how well you can do at reading a raw metar observation. The one
below was taken from the landfall of Hurricane Bonnie in August 1998.
KILM 261753Z 05042G56KT 1 1/2SM RA BR SCT010 OVC015 26/24 A2912 RMK AO2 PK
WND 07056/1747 PRESFR SLP862 P0017 60273 T02610244 10267 20244 58103=
(Y'all got it now, right?)

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