Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
407 ACUS11 KWNS 281914 SWOMCD SPC MCD 281913 MTZ000-IDZ000-282145- Mesoscale Discussion 1050 NWS Storm Prediction Center Norman OK 0213 PM CDT Tue May 28 2024 Areas affected...portions of central...southern...and eastern Idaho into southwestern Montana Concerning...Severe potential...Watch unlikely Valid 281913Z - 282145Z Probability of Watch Issuance...20 percent SUMMARY...A couple of severe gusts will be possible with the stronger storms today. The severe threat should be sparse and a WW issuance is not expected. DISCUSSION...High-based thunderstorms are gradually increasing in coverage over portions of central ID into southwestern MT. These storms are developing atop a deep boundary layer, comprised of 9-10 C/km surface-500 mb lapse rates (per latest RAP forecast soundings). The stronger, longer-lasting thunderstorms may generate enough evaporative cooling to support strong downbursts, where a couple of severe surface gusts may be observed. Still, the severe threat will be isolated, precluding the need of a WW issuance. ..Squitieri/Hart.. 05/28/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TFX...PIH...MSO...BOI... LAT...LON 42271660 44711616 47641384 47721205 47301167 46331191 45001199 43531198 42571237 42221305 42031498 42271660