473:
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57:(0 °C), 2) first measurable snowfall or 3) it is December 1. Likewise, values stop being calculated at the end of winter – when the last of the following four conditions occurs: 1) daily maximum temperature ≤ 32 °F (0 °C) no longer occurs, 2) no daily measurable snowfall, 3) daily snow depth ≥ 1.0 in. (2.5 cm) is no longer observed, or 4) it is March 1.
47:
The AWSSI was originally developed in 2015 by researchers
Barbara E. Mayes Boustead, Steven D. Hilberg, Martha D. Shulski and Kenneth G. Hubbard. The index was developed to "to examine relationships to teleconnection patterns, determine trends, and create sector-specific applications, as well as to
56:
Values are assigned on a daily basis based on the maximum and minimum temperature, 24-hour snowfall and depth of snow on the ground. Values start being calculated at the start of winter. The start of winter is defined when any of these conditions are met: 1) daily maximum temperature ≤ 32 °F
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to compare the severity of a winter relative to its weather history. Points are assigned daily based on the maximum and minimum
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39:. The index can be used for historical comparisons, road maintenance and to understand how severe a current winter is.
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Awesome or Awful? Ranking Winter
Severity with the Accumulated Winter Season Severity Index (AWSSI)
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688:
659:
Mayes
Boustead, Barbara E.; Hilberg, Steven D.; Shulski, Martha D.; Hubbard, Kenneth G. (2015).
24:
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analyze an ongoing winter or any individual winter season to place its severity in context."
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571:"Local Weather History: AWSSI or Winter Severity Ratings Since 1880"
631:"It's Been One of the Most Miserable Starts to Winter on Record"
35:
and snow depth for a specific site and accumulated through the
455:
661:"The Accumulated Winter Season Severity Index (AWSSI)"
711:"Accumulated Winter Season Severity Index (AWSSI)"
601:"Annual Survey of State Winter Maintenance Data"
665:Journal of Applied Meteorology and Climatology
768:National Centers for Environmental Prediction
8:
59:
21:accumulated winter season severity index
498:
629:Erdman, Jonathan (27 November 2018).
7:
743:Winter Season Severity Index (AWSSI)
14:
581:from the original on 18 July 2023
699:from the original on 2023-12-19.
569:Evans, Chad (27 December 2022).
471:
721:from the original on 2023-07-18
641:from the original on 2023-07-18
611:from the original on 2023-07-18
551:from the original on 2023-07-18
517:from the original on 2023-07-18
1:
535:Boustead, Barb Mayes (n.d.).
784:
763:Meteorological quantities
507:"WeatherTalk Webinar #72"
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685:10.1175/JAMC-D-14-0217.1
487:Regional Snowfall Index
63:AWSSI point thresholds
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16:Seasonal weather index
460:AWSSI climo 1980–2020
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23:or AWSSI provides a
677:2015JApMC..54.1693M
635:The Weather Channel
462:
452:AWSSI climatology
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758:Hazard scales
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68:Temperature
55:
46:
20:
18:
605:Clear Roads
337:-26 to -35
306:9.0 to 9.9
289:8.0 to 8.9
269:−21 to −25
255:7.0 to 7.9
252:−16 to −20
249:−16 to −20
238:6.0 to 6.9
235:−11 to −15
232:−11 to −15
204:5.0 to 5.9
187:4.0 to 4.9
153:3.0 to 3.9
136:2.0 to 2.9
119:1.0 to 1.9
102:0.1 to 0.9
52:Calculation
29:temperature
752:Categories
725:2023-07-18
645:2023-07-18
615:2023-07-18
555:2023-07-18
521:2023-07-18
493:References
442:>=30.0
218:−6 to −10
215:−6 to −10
88:Snowdepth
258:24 to 35
241:18 to 23
224:15 to 17
207:12 to 14
201:−1 to −5
198:−1 to −5
150:10 to 14
147:10 to 14
133:15 to 19
130:15 to 19
116:20 to 24
113:20 to 24
99:25 to 32
96:25 to 32
85:Snowfall
719:Archived
697:Archived
693:15847401
639:Archived
609:Archived
579:Archived
575:wlfi.com
546:Archived
515:Archived
511:CoCoRaHS
465:See also
371:<-35
334:<-20
190:9 to 11
33:snowfall
673:Bibcode
585:18 July
184:0 to 4
181:0 to 4
173:6 to 8
167:5 to 9
164:5 to 9
156:4 to 5
76:Points
43:History
691:
37:winter
689:S2CID
549:(PDF)
542:(PDF)
71:Snow
715:MRCC
587:2023
377:36+
343:36+
82:Min
79:Max
19:The
681:doi
433:45
416:36
399:26
382:22
365:20
348:18
331:15
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263:11
246:10
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445:–
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
