Will It Snow Again in North Carolina
** PLEASE NOTE: NWS Hastings Volition Upshot Freezer Warnings/Frost Advisories (as needed) for the rest of this spring **
All the same, as of May 15, confidence remains fairly high that there MAY NOT Exist ANY further Frost/Freeze concerns this flavor!
General Overview of Local Jump Frost/Freeze Information:
The mid-Apr through early on-May time frame typically features the final occurrence of freezing temperatures and/or frost of the spring season within our 30-county coverage surface area of south central Nebraska and n fundamental Kansas. Based on 30-year averages, the date of the AVERAGE last springfreeze (32°-or-colder)ranges from effectually April 17 in far southeastern local communities (such as Beloit KS), to around Apr 23-xxx in the Tri Cities (Grand Island/Hastings/Kearney), to around May 5th in far northern and western communities such as Greeley, Gothenburg and Cambridge. HOWEVER, after viewing the maps and tables contained in this story, it is readily apparent that the phrase "boilerplate concluding freeze date" is quite relative, as well-nigh sites exhibit a five-9 calendar week range between the earliest/latest last dates on tape!
Delight refer to the wealth of data within the tabs beneath (including tables and maps of boilerplate concluding frost/freeze/hard freeze dates) to "stay on peak of" the frost/freeze state of affairs across the local area this spring. This includes the "Looking Alee" section just beneath, which highlights upcoming opportunities for frost/freeze inside the next 7-10 days and besides gives our insight as to when nosotros believe the concluding frost/freeze of spring 2022 has most likely occurred.
Looking Ahead: ** Substantially Goose egg Business concern for Frost/Freeze Through AT Least MAY 20... BUT Will Need To Keep An Eye On May 21 (Sat AM) Just In Case **
(updated May 15)
- May 16-20 (Monday AM-Fri AM): With overnight low temperatures property up well into the 40s-50s, at that place is ESSENTIALLY ZERO Business concern for freezing temperatures or frost development.
-May 21 (Sat AM...maybe some frost potential?):Although the vast majority of our coverage area should take no frost concerns with depression temperatures currently projected to be in the low 40s, at that place are signs that especially some northern/western local areas (mainly w of a line from Fullerton-Kearney-Alma) couldmayhap drop into at least the upper 30s (with mid-30s in the realm of possibility). Tonight/morning will be closely monitored, as if the forecast trends any colder (and if winds are light plenty) some limited, late-flavor frost concerns could mayhap develop.
-Beyond May 21st:Although nevertheless a chip soon to truly GUARANTEE that we are "out of the woods" completely (sometimes, albeit rarely, a freeze can occur as late as belatedly May), longer range reckoner models currently advise that additional frost/freeze concerns are quite unlikely this bound.
Recapping Last Leap'south (2021) Final Frost/Freeze:
-Spring 2021: For the majority of the NWS Hastings coverage area, the last official freeze (32º-or-colder) of spring 2021 occurred on either April 22 (fairly typical versus 30-year averages) or betwixt May 10-12 (a little later than thirty-year averages...although this freeze was fairly "marginal" and mainly just affected northern/western local counties). For the vast majority of the area (all just far northern counties such as Valley/Greeley), the last hard/killing freeze (28º-or-colder) occurred around April 21-23 (most to slightly later on than 30-year averages).
- Frost/Freeze Definitions
- Local/Regional Concluding Frost/Freeze Maps & Table
- Daily Frost/Freeze Maps
- Jump First Leaf/Bloom Index Maps
Earlier standing, here are a few definitions...
Frost occurs when there is a solid deposition of h2o vapor from the air. Frost will form when solid surfaces are cooled below the dew bespeak. An air temperature range of 33°- 36° (or colder), along with lite winds, is usually needed to initiate frost formation. At least small damage is possible to plants. One must keep in listen that frost is not guaranteed if the air is very dry out and/or winds are roughly 8+ MPH.
The range of boilerplate dates for the Last frost of the spring across across near of
south central Nebraska and north key Kansas is betwixt May 1 - May xv.
Freeze
Freeze occurs when the air temperature drops to 32°-or-lower. A freeze will result in significant impairment to many unprotected plants, specially if the temperature remains at-or-beneath freezing for several hours.
The range of average dates for the LAST leap freeze across nearly of
south central Nebraska and n cardinal Kansas is between April 19 - May 7.
Hard Freeze
Hard freeze (per our local NWS definition) occurs when the temperature reaches 28°-or-lower for at least a few hours. This commonly means that many types of plants and most seasonal vegetation will exist destroyed. In addition, there is a likelihood of damage to unprotected outdoor plumbing/un-drained sprinkler systems etc.
The range of boilerplate dates for the LAST hard freeze of the spring beyond across most of
south central Nebraska and n fundamental Kansas is betwixt April 8 - April 28.
South Key Nebraska and N Central Kansas
30-Yr Average Last Frost/Freeze Dates (1991-2020)
(click image to enlarge)
Median Dates of Last Jump Freeze & Difficult Freeze (1991-2020)
(Midwestern Regional Climate Eye)
Below is a table focused on the average dates for reaching particular frost/freeze temperature thresholds. Go along in mind, at that place is often tremendous variation from yr-to-year and betwixt whatsoever given location across the surface area!
Explanation of the following table:
- The first column lists 10 locations in south cardinal Nebraska and 3 in north central Kansas with long histories of beingness NWS Cooperative Observer sites (except for Grand Island and Hastings airports, which are automated systems). This is only a modest sampling of dozens of official conditions stations within the NWS Hastings coverage expanse, and these sites are by and large organized down the column from northward-to south.
- The 2nd column shows the average date of the LATEST observance of 28°, 32° and 36° temperatures during the most recent thirty-twelvemonth menstruum from 1992-2021.
- The third and fourth columns reveal the primeval final freeze date and latest final freeze engagement (32° or colder) during the past 30 years. It is readily apparent that the phrase "average final freeze date" is quite relative, equally most sites feature a 5-9 calendar week difference betwixt the earliest and latest dates! For some of these locations, the incredibly-early on last freeze of jump 2012 (between March 9-11) was among the earliest on record. On the reverse spectrum, for several places the latest freeze of the by 30 years occurred in mid-May 2014.
- The final cavalcade is a recap of Terminal Jump (2021), showing the actual concluding dates that 28°, 32° and 36° were observed. A bluish-shaded engagement indicates that the terminal spring frost/freeze/difficult freeze of 2021 occurred at least 10 days Later than the thirty-year boilerplate, while carmine-shaded dates signal a last jump frost/freeze/difficult freeze that was at least x days Before than the 30-year boilerplate.
Spring Frost/Freeze Data For South Central Nebraska and North Fundamental Kansas
(based on 30-twelvemonth averages from 1992-2021)
| Avg Final Leap Date Of: 28° Or Colder 32° Or Colder 36° Or Colder | 1992-2021 Earliest Last Date: 32° Or Colder | 1992-2021 Latest Last Date: 32° Or Colder | Last Spring 2021 Appointment: 28° Or Colder 32° Or Colder 36° Or Colder | |
| Greeley | April 28 May 7 May 14 | Apr xvi, 2007 | May 19, 2000 | May 12 (27º) May 13 (29º) May 13 (29º) |
| Osceola | April thirteen Apr 27 May iv | April nine, 2003 | May 15, 2014 | April 23 (27º) April 23 (27º) May eleven (36º) |
| Gothenburg | April 21 May iv May 15 | April eleven, 2012 | May 28, 1992 | April 23 (26º) Apr 24 (31º) May 12 (36º) |
| Kearney Airport (NWS Observer) | April 19 April 30 May 9 | April 10, 2003 | May 28, 1992 | April 22 (25º) May 10 (32º) May x (32º) |
| Chiliad Island (airdrome) | Apr 14 Apr 25 May 7 | Apr 9, 2003 | May 17, 2014 | April 21 (27º) April 22 (31º) May 10 (33º) |
| Holdrege | April 17 May iii May 9 | Apr x, 2003 | May 29, 1992 | April 22 (27º) May 10 (31º) May 12 (35º) |
| Hastings (airport) | April 12 Apr 24 May 4 | March ix, 2012 | May 17, 2014 | Apr 21 (28º) April 22 (31º) May ten (35º) |
| Geneva | April 8 April 20 May 1 | March 9, 2012 | May 17, 2014 | April 21 (27º) Apr 22 (29º) May x (36º) |
| Cambridge | April 21 May 5 May fourteen | April 16, 2007 | May 29, 1992 | April 23 (28º) May 10 (31º) May thirteen (36º) |
| Hebron | Apr 13 April 24 May five | March 11, 2012 | May xvi, 2014 | April 22 (28º) April 22 (28º) April 25 (36º) |
| Smith Centre, KS | April 10 April 19 May ane | March 10, 2012 | May 11, 2020 | April 22 (27º) Apr 22 (27º) April 23 (36º) |
| Plainville, KS | April 10 April 20 May 5 | March ten, 2012 | May 12, 2008 | Apr 22 (24º) April 22 (24º) April 24 (36º) |
| Beloit, KS | April viii April nineteen May ii | March 11, 2012 | May 4, 2004 | Apr 21 (27º) April 22 (31º) May 12 (36º) |
The Midwestern Regional Climate Centre (MRCC) produces maps that update DAILY, depicting the about recent date that sites beyond the region that accept fallen to at least 32° or 28° this jump. In addition, Grey shaded areas = places that have Non YET accumulated at to the lowest degree 150 Growing Degree Days (GDD/base 50º F) since Feb. 1. In general, this means that greyness-shaded areas have not nevertheless get favorable for widespread establish/crop growth. Cheque out the latest statewide maps of Kansas/Nebraska by clicking the images below.
The U.s.-National Phenology Network (NPN) produces several maps that update DAILY, depicting the progression of particular types of jump vegetation across the nation, and how it compares to long-term averages. Encounter their spider web page for much more particular and information, only the two maps highlighted beneath draw First Leaf Index Bibelot and Beginning Bloom Index Anomaly. In short, this ways they evidence the current status of some types of spring vegetation (first leaf-out or offset-flowering) compared to long-term averages, giving an idea of whether jump is "alee" of or "behind" schedule.
Source: https://www.weather.gov/gid/springfrostfreeze
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