textproduct: Columbia

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

WHAT HAS CHANGED

Key messages updated to reflect frontal passage through the region. Aviation discussion updated for 18z TAFs.

DISCUSSION

Key Message 1: Behind a departing cold front, increased fire weather concerns persist and cooler weather will occur through midweek before the next warm up.

The previously discussed cold front has now traversed most of the forecast area early this afternoon with little to no precipitation making it to the ground. A cooler and drier airmass continues to filter in from the northwest, with dewpoints falling through the 30s. Northwest winds also continue to be a bit gusty, with speeds around 15 mph and gusts between 20 and 30 mph. Given our ongoing drought, this may create some spotty fire weather concerns, but RH values aren't falling fast enough to justify the issuance of any headlines outside of the SC Forestry Burn Ban which remains in effect until further notice. Winds should decrease overnight and overnight lows should fall into the 40s which is much cooler than we've seen over the past several days. Dry high pressure overspreads the area and should remain in place much of the upcoming week. After a few days of near normal temperatures, values will again push above normal into the mid 80s Wednesday and upper 80s possible Thursday and Friday. We maintain an elevated fire weather risk this week despite weak winds overall. Min RH values will be near critical values each day, generally in the low to mid 20s. Not to get too excited just yet, but there remains a signal for a wetter pattern beginning at the very end of this period and towards the beginning of May.

AVIATION /18Z SUNDAY THROUGH FRIDAY/

Breezy at Times this Afternoon but still VFR Conditions....

What little rain was associated with the cold front has now passed east of all terminals. Winds have mainly shifted to the northwest, though they have periodically turned more northerly. Expect gusty northwest to north winds to continue this afternoon, diminishing this evening into tonight as the pressure gradient weakens. Low clouds should move east of all terminals during the next hour followed by high clouds clearing out this evening. Clear skies and light winds are expected on Monday morning.

EXTENDED AVIATION OUTLOOK...No widespread restrictions expected through Thursday.

CAE WATCHES/WARNINGS/ADVISORIES

SC...None. GA...None.

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