**5:00 am** Facebook is down for some people in the area, so I'm posting this weather briefing here as well.
**WEATHER BRIEFING FOR THURSDAY, AUGUST 4, 2016**
OVERVIEW
A cool and moist wedge of high pressure will persist atop the region today, lingering into Friday. Another frontal boundary is expected to enter the region over the weekend, keeping higher than normal rainfall chances in the forecast through early next week.
WEATHER SPONSOR
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TODAY
(The record high for today is 93°F in 2011 and the record low is 46°F in 1998)
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 84. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. Flood Watch in effect until Friday morning.
HAZARDS
A weak surface boundary has settled into the region and multiple shortwaves and areas of low pressure will pass through the region, bringing a chance of enhanced rainfall that may be heavy at times and could lead to flooding in locations that see multiple rain events or are downstream of these locations. The Highlands area of the county has already seen an inch of rainfall since 6 pm last night. These storms will be slow moving and they have the potential to drop copious amounts of rain in a short amount of time. Some may be capable of producing damaging wind gusts and clouyd to ground lightning.
If you're out driving in one of these storms, please slow down and watch out for ponding of water on the roadways that could lead to hydroplaning.
FLOOD WATCH
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
358 AM EDT THU AUG 4 2016
... Flash Flood Watch in effect through Friday morning...
The National Weather Service in Greenville-Spartanburg has expanded the Flash Flood Watch to include portions of northeast Georgia... western North Carolina and upstate South Carolina...
* a very moist air mass should allow numerous showers and scattered thunderstorms to continue across the area... which should be very efficient at producing rainfall at a high rate. The showers and storms will move slowly... which could produce excessive rain in some locations. There is the potential for the heavy rain to cause flash flooding along small creeks and streams.
* Areas are forecast to see 1 to 3 inches of rainfall... a few spots may see up to 5 inches.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action should flash flood warnings be issued.
.WAVES OF LOW PRESSURE WILL MOVE EAST ALONG AND STALLED FRONTAL SYSTEM OVER THE SOUTHEASTERN STATES WHILE HIGH PRESSURE REMAINS RIDGED INTO THE WESTERN CAROLINAS AND NORTHEAST GEORGIA FROM THE NORTHEAST. THIS RESULTS IN VERY MOIST AND UNSTABLE AIR MASS ACROSS THE AREA THROUGH TONIGHT. SLOW STORM MOTIONS AND SOUTHEASTERLY LOW LEVEL FLOW WILL KEEP THE POTENTIAL FOR HEAVY RAIN ACROSS THE AREA AS WELL. FLOODING OR FLASH FLOODING IS EXPECTED TO RESULT AS THE STORMS PRODUCE LOCAL AMOUNTS OF 1 TO 3 INCHES... WITH SOME AREAS POSSIBLY RECEIVING UP TO 5 INCHES.
POLLEN COUNT
The pollen count will be low-medium today and low-medium tomorrow. Grasses and Nettle will be the main sources of pollen.
TONIGHT
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
FRIDAY
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon. 50 percent chance of showers and thunderstorms. New rainfall amounts between a quarter and half of an inch possible.
FRIDAY NIGHT
Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.
Hurricane EARL has formed in the Gulf of Mexico and is headed toward Mexico. It is not expected to be a threat to the US Mainland.
HURRICANE EARL DISCUSSION NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL052016
1000 PM CDT WED AUG 03 2016
Earl has been under close surveillance by Air Force and NOAA Hurricane Hunter planes and the Belize Meteorological Service radar this evening. The Air Force Hurricane Hunters found peak 700 mb flight-level winds of 72 kt which converts to a surface wind of 65 kt, and this is used for the advisory intensity. Belize radar imagery shows that the eyewall has been fluctuating between an open and closed structure over the past several hours. There is little time left for Earl to strengthen before the center reaches the coast, and no significant intensification is anticipated before landfall. A steady weakening trend will commence after the tropical cyclone moves inland. Based on the latest track guidance, the center is forecast to only barely emerge into the extreme southern Bay of Campeche on Thursday, and this should limit reintensification at that time. Earl is expected to become a remnant low and dissipate over the high mountains of south-central Mexico by the weekend or sooner.
Earl continues to move slightly north of due west or 280/13 kt. The cyclone remains embedded in a well-defined steering flow to the south of a large and slow-moving mid-tropospheric high pressure system. Little change has been made to the previous official forecast track and the current NHC forecast remains close to the multi-model consensus.
After landfall, the biggest concern with Earl is rainfall. Global models depict the system becoming enveloped within a much larger-scale cyclonic gyre that will cover much of southern Mexico in a couple of days. This weather pattern will likely lead to copious rains, with isolated precipitation totals of 18 inches possible.
FORECAST POSITIONS AND MAX WINDS
INIT 04/0300Z 17.4N 87.6W 65 KT 75 MPH
12H 04/1200Z 17.7N 89.3W 50 KT 60 MPH...INLAND
24H 05/0000Z 18.2N 91.4W 30 KT 35 MPH...INLAND
36H 05/1200Z 18.5N 93.5W 25 KT 30 MPH...INLAND
48H 06/0000Z 18.8N 95.1W 30 KT 35 MPH...OVER WATER
72H 07/0000Z 20.0N 98.3W 20 KT 25 MPH...INLAND
96H 08/0000Z...DISSIPATED
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time posted >> 5:00 am am on facebook, earlier on the web (weekend and major holiday publish times are 6 am and weekdays are 5 am)
#WNCscan #MaconWx
ʘ‿ʘ Be kind to one another.
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