Monthly Archives: March 2014

One more chilly day this week, and then Spring does its thing

The strong cold front, which ultimately failed to yield much if any rain in the area, got through overnight and has cleared the area. No rain expected today — skies will be partly cloudy to sunny — but it will be windy, with gusts possibly reaching 40 MPH at times. Thus, NWS has a Wind Advisory out until 8PM. Use a little caution on the bridges today.

Today will be the chilly outlier in what looks to be a very warm week. Temperatures will only get around 70-72 away from the beaches (where mid-60s seem much more likely). We’ll get into the mid-70s for Monday and then 80s! So many 80s — and so much sun, too! This will actually be a little above normal for the first part of April but after the winter we’ve had, I think we’ll take it.

Next front may become an issue for the first part of the weekend — wait and see on this one. Will know more by mid-week.

Flood advisory until 6:30am for the Charleston metro including downtown

We’re starting the day with a flood advisory for downtown Charleston, James Island, western Mt. Pleasant, and West Ashley as several rounds of heavy rain continue to move through the area. With high tide approaching (7:36 AM), drainage could become an issue. Flood advisory goes until 6:30am. If you see water covering the road, take an alternate route. Expect steady rain to let up by mid-morning as we get between precipitation events.

Slight severe weather risk tomorrow

Rain chances will be with us overnight tonight into tomorrow morning; lows will only fall to the mid-60s.

Tricky forecast for tomorrow — best rain chance is going to be in the afternoon. What we’ll need to watch is whether clouds break and let the sun peek through for any extended period of time ahead of the front — if this happens, we may be dealing with a few severe thunderstorms (with damaging winds the main concern) during the afternoon hours. Make sure you have reliable ways to receive National Weather Service watches and warnings. Facebook is not that venue — start with a NOAA Weather Radio or an alerting smartphone app such as iMap Weather Radio or even any of the local television station apps. (The Weather Channel’s app will push alerts, too.) With any luck, cloud cover will stick around and we won’t have to worry about the severe threat so much, but it’s better to be prepared!

Sunday looks much better — highs around 70 with a drier airmass in place will make for a really beautiful day in the Lowcountry.

Latest NWS statement on freezing drizzle potential overnight

My emphasis added…

…PATCHY FREEZING DRIZZLE OVERNIGHT INTO EARLY TUESDAY…

TEMPERATURES AROUND FREEZING WILL SETTLE INTO AREAS NORTH OF
INTERSTATE 16 AND AWAY FROM THE IMMEDIATE SOUTH CAROLINA COAST
OVERNIGHT INTO EARLY TUESDAY. AS A RESULT…DRIZZLE COULD BEGIN TO
FREEZE ON SOME ELEVATED SURFACES.

DUE TO THE COMBINATION OF EVAPORATION ENHANCED BY PERSISTENT
WINDS…THE EXPECTED LIGHT AND SPOTTY NATURE OF ANY DRIZZLE AND
THE LINGERING EFFECTS OF TEMPERATURES IN THE 70S SUNDAY AND
MONDAY…DRIZZLE IS NOT EXPECTED TO FREEZE ON ROADS AND SHOULD
NOT IMPACT TRAVEL. VERY LIGHT ICE ACCUMULATION…IF ANY…WOULD
BE LIMITED TO TREE BRANCHES AND OTHER SURFACES ABOVE THE GROUND.

IF MORE SUSTAINED FREEZING DRIZZLE OR LIGHT FREEZING RAIN
DEVELOPS…THERE IS A VERY LOW PROBABILITY FOR SLICK SPOTS
ON SOME BRIDGES AND OVERPASSES LATE TONIGHT INTO EARLY TUESDAY.
HOWEVER…EVEN IN A WORST CASE SCENARIO THE IMPACT OF ANY ICE
ACCUMULATION OVERNIGHT WOULD NOT COMPARE WITH THE IMPACT OF
THE ICE STORMS THAT OCCURRED IN JANUARY AND FEBRUARY
.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

KEEP UP TO DATE WITH THE LATEST FORECASTS AND INFORMATION FROM
THE NATIONAL WEATHER SERVICE IN CHARLESTON.

Will be a conversational glaze at worst, it looks like. School will be open, the Ravenel will be open…Charleston will be open for business tomorrow. Proceed normally.

After today, below normal temperatures for the rest of the week

NWS forecasting a high of 77 today before major post-frontal changes tonight — Freeze Watches are up for the coastal counties, while Freeze Warnings are up for the inland counties. (The NWS has resumed its frost/freeze program with the growing season back underway.)

Something to watch: Small potential for freezing drizzle/light freezing rain tonight particularly inland. Don’t be shocked to see a Freezing Rain Advisory come out if these chances improve, but also don’t expect to see many issues from this given our expected high 70s today and the relatively short duration of any freezing precipitation — as it stands right now, this won’t be a “shut it all down” event.

Tomorrow’s NWS-forecasted high of 43 is 34 degrees cooler than what’s expected today. Temperatures moderate somewhat starting Tuesday but highs in the mid-50s are this week; at times highs will run as many as 10-15 degrees below normal for early March (upper 60s are the typical highs).