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SE US freezes/frosts April 2-4 with mega frost possibly down to Hogtown April 3rd!

Doesn’t look like RDU dipped below 30 last night. What a fail!!! Well tonight the forecast low is 24 here, so we’ll see what happens....

We can’t even cold right anymore.
 
RDU very briefly hit 32. So window below freezing was likely under an hour and very light . That means we didn’t get as cold as NWS had for us , they had 29. If only last night was the end we would have no issues ! Tonight however ? Yikes . No where does radiational cooling better than lowland sandy areas of the southern us. Columbia , Augusta , hog town, Fayetteville , Sanford , and even Raleigh.
And Buzzard Town ?
 
RDU very briefly hit 32. So window below freezing was likely under an hour and very light . That means we didn’t get as cold as NWS had for us , they had 29. If only last night was the end we would have no issues ! Tonight however ? Yikes . No where does radiational cooling better than lowland sandy areas of the southern us. Columbia , Augusta , hog town, Fayetteville , Sanford , and even Raleigh.
I think the light breeze helped a lot last night. Unfortunately it doesn’t look like we’ll have that tonight so a lot of areas might see at least 3-4 hours below freezing
 
Looked at the forecast dews for today and we are already supposed to have dews in the single digits per the nws hourly forecast tool. Actual dew is 16. There’s hope ! NWS is very aggressive forecasting 25 tonight ! Jesus .
I don't blame them if we go truly calm there's nothing stopping us from 20-25. Thing is most models keep a light breeze along and east of US1 and the 6z 3k didn't even get us below freezing. The real mega frost potential may be Sunday morning at this rate.
 
I don't blame them if we go truly calm there's nothing stopping us from 20-25. Thing is most models keep a light breeze along and east of US1. The real mega frost potential may be Sunday morning at this rate.
Yeah Sunday is what I’ve been watching as well! Screams mega frost potential and chance to bust colder than forecast . 20-25 = we are threatening a 130 + year old all time record. Dang!
 
Yeah Sunday is what I’ve been watching as well! Screams mega frost potential and chance to bust colder than forecast . 20-25 = we are threatening a 130 + year old all time record. Dang!
We are really experiencing probably a once per decade-25 yr type cold shot, maybe even less frequent than that. Full sun mid 40s on 4/2 at RDU is impressive
 
A very impressive 35 low at KSAV this morning, colder than recent gfs runs having 38 and 3 or so colder than the coldest midwinter normals and the coldest since 3/9! Tonight’s low is forecasted to be close to the record of 33 under near ideal radiation resulting in some frost. But the 6Z GFS is only down to 37. So, we’ll see. If it gets to 33, it would tie the coldest of March of 2021! The walk last night was fabulous.

Today’s high is expected in the upper 50s, which is near the coldest midwinter normal high! This would be the coldest high back at least to 3/21. That would result in a mean no higher than 47, which would mean the coldest mean back at least to the 47 of 2/21!!

There will be a third cold night on Sat night though not as cold as the prior two. Projected lows at KSAV low 40s, but further inland are forecasted to see frosty upper 30s. A decent portion of NC may see low to mid 30s, which likely will end up the most frosty night, despite being much less cold than tonight, due to higher dewpoints.
 
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NAM3k (mid 30s) and globals low 30s aren't buying the Freeze. I was surprised to see the 10a AFD from RAH double down with a hard freeze warning.
 
Yeah they even have 25 forecast! Very aggressive !

Indeed, much colder than the GFS/Euro. They’re going for the much colder CMC, which has been consistently very cold with well down into the 20s for tonight in much of NC for runs going back to 3/24! KCHS region is also going with the CMC with low to mid 30s most areas. If all of this happens, the Crazy Uncle will get major kudos:

736DDDBB-1E4D-4D5A-BCC0-3204EDEF7ADE.png

Here was the CMC run from way back at 12Z on 3/24, which is amazingly very similar to the current run:

 
NWS last time I checked had 29 here tonight, should be interesting, looks like higher chance to do that tonight
 
CMC was way to cold this morning, that’s for sure, had concord in the upper 20s/30, concord regional airport only got down to 32 View attachment 81132

It was a little too cold there but way too cold seems like an exaggeration. It was pretty close in much of NC and was actually several degrees too warm in much of C and S GA/SC as well as N FL. So, too warm in more spots than too cold.
 
Why might the CMC’s much colder lows verify more closely than the GFS/Euro?

1. Arctic high pressure centered almost overhead at 12Z tomorrow with close to 1034 mb in much of NC, which is 30.53”! How often has NC had a SLP that high in April? That is pretty rare for sure.

71C47344-B28D-4A95-BAE2-87529AB77BF4.png

2. Ridiculously low dewpoints in the teens along with very light winds and clear skies:
B9F232F7-8C78-492C-AD2E-17E21C28A44F.png
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The brand new (12Z) CMC maintains its very cold night. The dashed line in the Charlotte to RDU corridor is 26 F:

484C87D1-EB93-4C5F-BB06-8D7D7DD6B56A.png
 
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Grandma said plum trees that were still in bloom have been “KOed” and even the ones that are leafing look bad, and we still have 1, maybe 2 more nights of this ?
Looks like my hydrangea got it, some new growth on crepe myrtles and most of the grass in my front yard. Nice.
 
Looks like my hydrangea got it, some new growth on crepe myrtles and most of the grass in my front yard. Nice.
My god . I thought it was light last night . Huh. It’s worth it right ? 2-3 cold days that kill everything despite the fact heat is coming no matter what? Imma miss strawberries . Don’t people begin picking those now....
 
My god . I thought it was light last night . Huh. It’s worth it right ? 2-3 cold days that kill everything despite the fact heat is coming no matter what? Imma miss strawberries . Don’t people begin picking those now....
Interestingly enough everything that is injured is protected from the N wind. Most plants/grass that are in the open yard are fine. I'm going to put my senor tonight at 2 or 3 feet instead of 6 to see how cold it gets
 
Interestingly enough everything that is injured is protected from the N wind. Most plants/grass that are in the open yard are fine. I'm going to put my senor tonight at 2 or 3 feet instead of 6 to see how cold it gets
I hope your senor is very good ! Don’t you think it will be too cold for him though ? Leaving a senor out overnight ?
 
My god . I thought it was light last night . Huh. It’s worth it right ? 2-3 cold days that kill everything despite the fact heat is coming no matter what? Imma miss strawberries . Don’t people begin picking those now....
I forgot to add I saw an article this morning that strawberries are delayed this year not sure if that's good or bad for them
 
I’m not sure either , what’s more sensitive their buds and blooms or the berries ?
I've always understood it as the further along plants are in their green up the less cold required to cause damage. That said strawberries aren't typical warm season plants. My assumption would be the step between bud and fruit is the most sensitive period
 
I've always understood it as the further along plants are in their green up the less cold required to cause damage. That said strawberries aren't typical warm season plants. My assumption would be the step been bud and fruit is the most sensitive period
Perhaps , strawberries are more cool summer plants . That’s what makes them so tough to grow here . We warm up fast but our freezes don’t follow , then they get frozen . Then comes may and the first few 90s and they are toast. Northern places pick strawberries in June and July just fine .
 
Dang just to think that my grandmas plum trees took that sort of hit, imagine how widespread this is gonna be when tonight does even more damage to many more spots
 
Very disappointing 32 IMBY this morning. Pickens county airport, less than 10 miles away made it down to 26. Even GSP got to 28. Breeze just never quit. Tonight could actually be colder for me than last night.
 
The cold tonight is supported by unseasonably high SLPs.

This map below has the record high SLP's for April. Note the 1037.3 mb (30.63") for Asheville, which was set 4/7/1945. Their low that day was 28, well above the daily record of 20. Records there go back to 1939. The CMC has them getting to as high as 1035 mb or 30.56" (at 12Z tomorrow).

Note also the 1037.3 mb (30.63") for Charlotte, which was set 4/21/1897. Their low that day was 35, but keep in mind that that was in late April thogh ti was well above the daily record of 30. Records there go back to 1893. The CMC has them getting to as high as 1034 mb or 30.53" (at 12Z tomorrow).

AprilRecordHighSLPs.gif
 
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Perhaps , strawberries are more cool summer plants . That’s what makes them so tough to grow here . We warm up fast but our freezes don’t follow , then they get frozen . Then comes may and the first few 90s and they are toast. Northern places pick strawberries in June and July just fine .
You are correct. For the most part at this point the strawberries should be ok as long as the basic stuff is done to protect them... it would have hurt them more if there had been an early bloom and then the hard freeze. What really might take a hit though tonight is peaches. The really bad thing about tonight and why I think some of these lower numbers on the guidance has a chance to verify is simply how low the highs are going to be today. I’m at 46 right with full sunshine and calm wind. With dewpoints already around 10... things may drop fast tonight and add more time below freezing
 
Got to 26.7 at my house this morning, as for Strawberries, we don't start picking them here until May 15th
 
Just in from CHS NWS:

UPDATE: THE NEW MODELS ARE IN AND SUPPORT FREEZING TEMPERATURES
ACROSS MOST OF OUR AREA, SO WE UPGRADED THE REMAINING FREEZE
WATCHES TO WARNINGS.
 
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