Weather Briefing for Noon on Sunday, April 22, 2018

NOON UPDATE
Sunday, April 22, 2018

Due to the potential for a severe weather event, Macon MEdia will be posting more frequent weather briefings for the next 48 hours. The main concern is with excessive amounts of rain. Computer models are showing rainfall amounts could exceed three inches by 6 am Tuesday morning in Macon County.

During this period of heavy rain, please slow down on the roadways so you might avoid hydroplaning on water that will be ponding in the roads. Also turn on your headlights and increase your following distances so you will be more visible and can better react to what happens around you on the roads. Be on the alert for possible downed power lines and limbs in the roads and possible mudslides or slope failures that could send debris into the roads.

Macon County is under a Flood Watch until Tuesday morning. A copy is posted at the end of this article.

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Precipitation Loop from the GOES 16 Weather Satellite
6:52 am to 11:47 am

Franklin Area

THIS AFTERNOON

Cloudy with highs near 60 and dropping into the mid-50s by 6 pm. Winds 5 to 10 mph out of the southeast, increasing in the later afternoon. Rain chances increase through the day from 30% chance at noon to 60% chance at 6 pm. It is likely rain showers will arrive this afternoon with rainfall amounts between a tenth and quarter of an inch expected.

TONIGHT

Cloudy, rainy and windy, especially for those above 3,000 feet. Lows in the mid-to-upper 40s. Winds 10 to 15 mph out of the southeast with gusts near 20 mph. Winds above 3500 feet will reach the 40 to 50 mph range at times. Near 100% chance of rain with rainfall amounts between three-quarters and an inch expected. Those who live on south-facing slopes may receive up to an inch and a half of rainfall.

MONDAY

Cloudy, rainy and windy. Highs near the mid-50s. Winds 5 to 10 mph with gusts peaking in the morning hours near 20 to 25 mph at the lower elevations and 40 to 50 mph in the lower elevation between 6 am and 10 am. Near 100% chance of rain with rainfall amounts between 1 and 2 inches expected. Locations on south-facing slopes could receive an inch more in this time frame (between 6 am to 6 pm).


Otto Area

THIS AFTERNOON

Cloudy and rainy. Highs near 60. Winds 5 to 10 mph out of the southeast. Near 100% chance of rainfall. Rainfall amounts between a tenth and a quarter of an inch expected.

TONIGHT

Cloudy, rainy and foggy. Lows near the mid-upper 40s. Winds 10 to 15 mph out of the southeast with gusts near 20 mph. Locations in the higher elevations will probably see winds in the 15 to 20 mph range with gusts near 40 mph. NEar 100% chance of rain with rainfall amounts between half an inch to an inch with south-east facing slopes receiving twice that.

MONDAY

Rainy with fog possibly lingering into the early afternoon. Highs in the low-to-mid 50s. Winds out of the south 5 to 10 mph with gusts around 20 mph. Winds will peak in the morning hours. Rainfall amounts between 1 and 2 inches expected with more possible on the south-facing slopes and the further south locations.

Highlands Area

THIS AFTERNOON

Cloudy, windy and rainy. Highs in the lower 50s. Winds out 5 to 10 of the southeast with gusts in the 15 to 20 mph range. Near 100% chance of rain with rainfall amounts between a quarter and half an inch possible.

TONIGHT

Cloudy, rainy and foggy. Lows near the mid-40s. Winds 15 to 25 mph out of the southeast with gusts in the 35 to 40 mph range. NEar 100% chance of rain with rainfall amounts between 1 and 2 inches possible.

MONDAY

Cloudy rainy. and foggy with the fog expected to linger into the early afternoon hours. Highs in the upper 40s to near 50. Winds 20 to 25 mph out of the southeast with gusts in the 35 to 40 mph range. NEar 100% chance of rain with rainfall amounts between an inch and a half and 2 and a half inches possible.


Nantahala area

THIS AFTERNOON

Cloudy with highs near the mid-50s. Winds 5 to 10 mph out of the southeast with gusts in the 15 mph range. Near 100% chance of rain, mainly in the later afternoon time frame.

TONIGHT

Cloudy, rainy and foggy. Lows in the mid-40s. Winds 15 to 25 mph out of the southeast with gusts in the 35 to 40 mph range. Those in the higher elevations could see winds in the 50 mph range. Near 100% chance of rain with rainfall amounts between three quarters and an inch of rainfall.

MONDAY

Cloudy and rainy with fog possibly lingering into the early afternoon hours. Highs in the lower 50s. Winds 15 to 20 mph out of the southeast with gusts in the 30 to 35 mpg range, peaking before noon.



***FLOOD WATCH***

...HEAVY RAINFALL LATE TONIGHT THROUGH MONDAY NIGHT MAY PRODUCE FLOODING ACROSS PARTS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA...

.A low-pressure system approaching from the west will be accompanied by abundant moisture. Strong southeasterly winds ahead of the system will wring out very heavy rainfall across the eastern slopes of the southern Appalachians and the adjacent foothills starting tonight and possibly lingering through Monday night. The duration of moderate to heavy rainfall may produce flooding along streams, creeks, and main stem rivers within the Watch area. Longer duration flooding along main stem rivers could linger into mid-week.

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING...

* Abundant moisture ahead of a low-pressure system slowly approaching from the west will yield heavy rainfall across the eastern slopes of the southern Appalachians and adjacent foothill areas tonight through at least Monday night. Rainfall totals of 3 to 4 inches are expected in many of these locations, with localized 4 to 6-inch amounts in the most upslope preferred areas of the eastern slopes of the mountains.

* Flooding may develop along streams, creeks, and main stem rivers, especially through the day on Monday. Flooding is most likely along the upper reaches of the French Broad River and associated tributaries. This Flood Watch may need to be expanded into adjacent piedmont areas if rainfall numbers are adjusted up any further. Additionally, flooding from the heavy rainfall could linger into Tuesday or beyond, especially along any main stem rivers that flood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch means there is a potential for flooding based on current forecasts of heavy rainfall.

You should monitor later forecasts and be alert for possible Flood Warnings. Consider moving vehicles and other property from known, flood-prone areas. Those living in areas prone to flooding should be prepared to take quick action should flooding develop, including fleeing to higher ground.

time published 12:00 on Sunday, April 22, 2018



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