Here is a timeline of weather conditions at Greg’s Weather Center in South Plainfield, New Jersey over a period of 48 hours as the Mid-Atlantic got a one two punch from cold fronts.

May 13, 2016

8:48 AM–Stepped outside for a moment. Skies are overcast. No rain yet.

9:50 AM–Took a look at some things regarding the weather on Facebook. Joe Cioffi of FIOS1 and PIX11 indicated that there will be two cold fronts coming through the area over the next couple days. The first one is scheduled to come through on Friday afternoon, and originally this front was less likely to produce severe storms, but now the NAM model is indicating that it could be stronger. The second front is supposed to come through on Saturday afternoon after skies are forecasted to be sunny all day. The Weather Channel app indicated that rain is likely be 2:00 PM, and its radar showed a line of showers and storms in Central Pennsylvania. Looking at the latest conditions at GWC in South Plainfield, temperature is up to 64 degrees. Humidity is high at 87 percent. Barometer is falling at 29.86 inches of Hg. Winds are calm. Total rainfall so far this month at GWC is 1.44 inches while for the year, it is 11.09 inches.

12:45 PM–Just returned from my workout at South Amboy’s Waterfront Park. Conditions were mostly overcast with a little bit of fog just off the coast. Sun tried to peak out for a bit, but skies remained mostly cloudy. Slight wind out of the East and Southeast.

1:19 PM–Hazardous Weather Outlook from NWS Mount Holly suggests that there could be a few storms with heavy rain this afternoon…

Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 AM EDT FRI MAY 13 2016

DEZ001>004-MDZ008-012-015-019-020-NJZ007>010-012>027-PAZ060>062-070-
071-101>106-140730-
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-
CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-DELAWARE-
PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
325 AM EDT FRI MAY 13 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE…NORTHERN
DELAWARE…SOUTHERN DELAWARE…NORTHEAST MARYLAND…CENTRAL NEW
JERSEY…NORTHERN NEW JERSEY…NORTHWEST NEW JERSEY…SOUTHERN NEW
JERSEY…EAST CENTRAL PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA.

.DAY ONE…TODAY AND TONIGHT.

A FEW STORMS WITH HEAVY RAIN WILL BE POSSIBLE THROUGH THIS
AFTERNOON WHICH COULD LEAD TO LOCALIZED FLOODING IN POOR DRAINAGE
AREAS.

.DAYS TWO THROUGH SEVEN…SATURDAY THROUGH THURSDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

1:20 PM–The NWS Mount Holly Short Term Forecast indicates that rain is beginning to overspread the area.

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1216 PM EDT FRI MAY 13 2016

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-131930-
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
INCLUDING THE CITIES OF…WILMINGTON…DOVER…GEORGETOWN…
REHOBOTH BEACH…ELKTON…CHESTERTOWN…CENTREVILLE…EASTON…
DENTON…NEWTON…WASHINGTON…MORRISTOWN…FLEMINGTON…
SOMERVILLE…NEW BRUNSWICK…FREEHOLD…SANDY HOOK…TRENTON…
PENNSVILLE…GLASSBORO…CAMDEN…CHERRY HILL…MOORESTOWN…
MOUNT HOLLY…JACKSON…MILLVILLE…HAMMONTON…
CAPE MAY COURT HOUSE…OCEAN CITY…ATLANTIC CITY…
LONG BEACH ISLAND…WHARTON STATE FOREST…JIM THORPE…
STROUDSBURG…READING…ALLENTOWN…BETHLEHEM…MEDIA…
PHILADELPHIA…HONEY BROOK…OXFORD…WEST CHESTER…
KENNETT SQUARE…COLLEGEVILLE…POTTSTOWN…NORRISTOWN…
LANSDALE…CHALFONT…PERKASIE…MORRISVILLE…DOYLESTOWN
1216 PM EDT FRI MAY 13 2016

.NOW…
AT 1215 PM…RAIN SHOWERS WERE OVERSPREADING THE AREA FROM THE
SOUTH AND WEST. THESE RAIN SHOWERS WILL PERSIST THROUGH THE MID-
AFTERNOON HOURS…PRODUCING GENERALLY UP TO ONE-QUARTER OF AN
INCH OF PRECIPITATION. UP TO ONE-HALF OF AN INCH IS POSSIBLE IN A
FEW HEAVIER DOWNPOURS.

$$

1:30 PM–Rain has begun to fall here at GWC in South Plainfield. Falling at a steady and somewhat light rate.

3:01 PM–Still getting a steady light to moderate rain. So far, there has been 0.06 inches of rain for the day at GWC. Temperature is currently at 66 degrees with 94 percent humidity. Barometer is falling at 29.76 inches and the winds are calm.

4:06 PM–Rain has finally begun to come down more intensely. Could hear the pitter patter of it on the roof for clearly than before. Went outside and shot a video clip of it, and posted it to the GWC Facebook page. So far, about 0.12 inches of rain has fallen here at GWC. Temperature down to 65 degrees with the humidity up to 95 percent. Barometer still falling at 29.75 inches of Hg, and the winds are calm.

5:00 PM–The rain has let up just a little bit, but it is still falling steadily. Total rain so far today is up to 0.24 inches. For the month, we have had 1.69 inches, and for the year, GWC has totaled 11.34 inches of rainfall. Temperature steady at 65 degrees. Humidity up a bit to 96 percent. Barometer still falling at 29.74 inches of Hg. Winds remain calm.

8:35 PM–Rain has stopped. Went outside a while ago to do a time lapse video of the clouds breaking up before sunset. Received a total of 0.34 inches of rain. The total for the month is now up to 1.78 inches. Total for the year is now up to 11.43 inches. Temperature dropped a bit to 64 degrees. Humidity is up to 97 percent. Barometer steady at 29.75 inches of Hg. Winds are calm.

11:58 PM–Stepped outside for a brief moment. Plenty of moisture in the air in the form of some fog. Temperature is up to 61 degrees. Humidity is up to 98 percent. Barometer is steady at 29.78 inches of Hg. Got another 0.01 of an inch of rain for 0.35 inches of rain for today.

May 14, 2016

9:30 AM–Just came in from outside. Set up the time lapse video for today. Skies are sunny, mostly clear and blue. Only hint of clouds are some faint high cirrus.

10:50 AM–Just took a look at the NWS Mount Holly and Storm Prediction Center web sites. Mount Holly has issued a Hazardous Weather Outlook for a line of storms that could produce severe weather including gusty winds this afternoon. SPC still has the Mid-Atlantic and New Jersey under a Marginal Risk for severe weather.

10:53 AM–Took a look at the GWC WX Station data. Temperature is up to 69 degrees. Humidity is at 59 percent for a dew point of only 54. Barometer is falling though at 29.72 inches of Hg. Winds are calm.

12:11 PM–At Edison Park behind Middlesex County College. Skies are still sunny, but winds have picked up a bit and more cirrus and some small puffy cumulus clouds have developed.

1:18 PM–Just came home from my workout at Edison Park. Skies are continuing to get more overcast. Cirrus has been overtaken by a lot of cumulus. Not quite cumulus congestus. Still have some blue sky to fill in. Temperature is 74 degrees with a humidity of 53 percent for a dew point of 55. Barometer now falling sharply at 29.67 inches of Hg. Winds are still calm to light at GWC.

3:20 PM–Took another step outside to check the time lapse video and do a backyard weather report for Facebook page, and give another radar update. Outside, there was some sun, but it was shrouded in altostratus clouds giving a milky white effect to the sky. The leading edge of the showers and storms are moving through Eastern Pennsylvania. Rain and storms should be here at GWC in the next two hours or so. Temperature up to 74 degrees. Humidity is down to 49 percent for a dew point of 53. Barometer falling more rapidly at 29.61 inches of Hg. Winds are now picking up a bit to 5 to 10 mph.

4:52 PM–Just was outside. Skies are sunny, but there are clouds around. Checked the local radar, and saw that the line of showers and storms have moved into the western portions of Jersey with some strong cells near Rieglesville, Frenchtown, and Erwinna in Hunterdon County. The line is heading to the east. Temperature outside is up to 76 degrees with humidity down to 44 percent for a dew point of 52. Barometer continues to fall rapidly though at 29.57 inches of Hg. Winds are light around 5 mph.

5:43 PM–Conditions have deteriorated somewhat outside. Winds have picked up quite considerably and the skies have darkened in the last 50 minutes or so. Winds are anywhere between 10 to 20 mph. Temperature has dropped to 68 degrees. Humidity up to 57 percent. Barometer steady at 29.62 inches of Hg. No rain yet.

7:42 PM–Winds have slackened. Temperature down to 58 degrees. Humidity still up there at 90 percent for a dew point of 56. Barometer is now rising at 29.61 inches of Hg. Only had 0.01 inches of rain so far. Skies are still overcast.

11:55 PM–Winds are picking up again as high pressure begins to move in. Not much in the way of rain. Temperature is down to 56 degrees. Humidity down to 67 percent for a dew point of 45. Barometer steady at 29.65 inches of Hg.