SSCRAM+HRRR Severe Weather Guidance
Four-hour probability of severe storms, based on RAP/HRRR forecast and SSCRAM Technique
13z
F001
14z
F002
15z
F003
16z
F004
17z
F005
18z
F006
19z
F007
20z
F008
21z
F009
22z
F010
23z
F011
00z
F012
01z
F013
02z
F014
4-Hour Probabilities
None
Tornado
Wind
Hail
18-Hour Probabilities
Tornado
Wind
Hail
Ltng
HRRR Overlays:
4-Hour Lightning Potential Grid
Simulated Reflectivity
MSL Pressure and Wind
Updraft Helicity
SPC Products:
SPC Day1 Categorical Outlook
Underlays:
States/Counties
NWS County Warning Areas
Highways
ARTCC Regions
Read more about the
Statistical Severe Convective Risk Assessment Model (SSCRAM)
, and the production of these guidance products.
Please direct questions or comments to
John Hart
. This is a prototype page and may be subject to delays or outages.