[1] MU_CAPE – convective available potential energy, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are J/kg.

[2] MU_03km_CAPE – convective available potential energy between surface and 3 km AGL, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are J/kg.

[3] MU_HGL_CAPE – convective available potential energy in a hail growth layer (between 0°C and -20°C), derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are J/kg.

[4] MU_CIN – convective inhibition, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are J/kg.
 	
[5] MU_LCL_HGT – height of the lifted condensation level, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are m AGL. 

[6] MU_LFC_HGT – height of the level of free convection, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are m AGL. 

[7] MU_EL_HGT – height of the equilibrium level, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are m AGL. 

[8] MU_LI – lifted index, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are K.
 
[9] MU_WMAX – the maximum updraft speed in a thunderstorm (a square root of two times CAPE), derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are m/s. 
	
[10] MU_EL_TEMP – temperature of the equilibrium level, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are °C. 

[11] MU_LCL_TEMP – temperature of the lifted condensation level, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are °C.  

[12] MU_LFC_TEMP – temperature of the level of free convection, derived from the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are °C. 

[13] MU_MIXR – mixing ratio at the height of the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are g/kg.
 
[14] SB_CAPE – convective available potential energy, derived from the surface-based parcel. Units are J/kg.

[15] SB_03km_CAPE – convective available potential energy between surface and 3 km AGL, derived from the surface-based parcel. Units are J/kg.

[16] SB_HGL_CAPE – convective available potential energy in a hail growth layer (between 0°C and -20°C), derived from the surface-based parcel. Units are J/kg.

[17] SB_CIN – convective inhibition, derived from the surface-based parcel. Units are J/kg.
 	
[18] SB_LCL_HGT – height of the lifted condensation level, derived from the surface-based parcel. Units are m AGL. 

[19] SB_LFC_HGT – height of the level of free convection, derived from the surface-based parcel. Units are m AGL. 

[20] SB_EL_HGT – height of the equilibrium level, derived from the surface-based parcel. Units are m AGL. 

[21] SB_LI – lifted index, derived from the surface-based parcel. Units are K.
 
[22] SB_WMAX – the maximum updraft speed in a thunderstorm (a square root of two times CAPE), derived from the surface-based parcel. Units are m/s. 
	
[23] SB_EL_TEMP – temperature of the equilibrium level, derived from the surface-based parcel. Units are °C. 

[24] SB_LCL_TEMP – temperature of the lifted condensation level, derived from the surface-based parcel. Units are °C.  

[25] SB_LFC_TEMP – temperature of the level of free convection, derived from the surface-based parcel. Units are °C. 

[26] SB_MIXR – mixing ratio at the height of the surface-based parcel. Units are g/kg.

[27] ML_CAPE – convective available potential energy, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are J/kg.

[28] ML_03km_CAPE – convective available potential energy between surface and 3 km AGL, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are J/kg.

[29] ML_HGL_CAPE – convective available potential energy in a hail growth layer (between 0°C and -20°C), derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are J/kg.

[30] ML_CIN – convective inhibition, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are J/kg.
 	
[31] ML_LCL_HGT – height of the lifted condensation level, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are m AGL. 

[32] ML_LFC_HGT – height of the level of free convection, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are m AGL. 

[33] ML_EL_HGT – height of the equilibrium level, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are m AGL. 

[34] ML_LI – lifted index, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are K.
 
[35] ML_WMAX – the maximum updraft speed in a thunderstorm (a square root of two times CAPE), derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are m/s. 
	
[36] ML_EL_TEMP – temperature of the equilibrium level, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are °C. 

[37] ML_LCL_TEMP – temperature of the lifted condensation level, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are °C.  

[38] ML_LFC_TEMP – temperature of the level of free convection, derived from the mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). Units are °C. 

[39] ML_MIXR – mixing ratio at the height of the surface-based parcel. Units are g/kg.

**Temperature and moisture parameters:**

[40] LR_01km – temperature lapse rate between surface and 1 km AGL. Units are K/km.

[41] LR_03km – temperature lapse rate between surface and 3 km AGL. Units are K/km.

[42] LR_24km – temperature lapse rate between 2 and 4 km AGL. Units are K/km.

[43] LR_36km – temperature lapse rate between 3 and 6 km AGL. Units are K/km.

[44] LR_500700hPa – temperature lapse rate between 500 and 700 hPa (if below ground level, the lowest available level is considered). Units are K/km.

[45] LR_500800hPa – temperature lapse rate between 500 and 800 hPa (if below ground level, the lowest available level is considered). Units are K/km.

[46] FRZG_HGT – height of freezing level (0°C) as a first available level counting from the surface. Units are m AGL.

[47] FRZG_wetbulb_HGT – height of wet-bulb freezing level (0°C) as a first available level counting from the surface. Units are m AGL.

[48] HGT_max_thetae_03km – height of the most-unstable parcel (highest theta-e between surface and 3 km AGL). Units are m AGL.
 	
[49] HGT_min_thetae_04km – height of the lowest theta-e between surface and 4 km AGL. Units are m AGL.

[50] Delta_thetae – difference in theta-e between the mean in 3–5 km AGL layer and surface. Units are K.

[51] Delta_thetae_HGL – difference in theta-e between mean in a hail growth layer (between 0°C and -20°C) and surface. Units are K.

[52] DCAPE – downdraft convective available potential energy, initialized from 4 km AGL with a mean theta-e in 3–5 km AGL layer. Units are J/kg.

[53] Cold_Pool_Strength – difference between surface temperature and temperature of the downdraft (derived from DCAPE) at the surface. Units are K.

[54] Wind_Index – based on original formula from McCann (1994), doi:  https://tinyurl.com/jub4fecj Units indicate estimated wind gust potential in knots. 

[55] PRCP_WATER – precipitable water (entire column). Units are mm.

[56] Moisture_Flux_02km – mean wind speed multiplied by mean mixing ratio in the layer between surface and 2 km AGL. Units are g/s/m2.
 
[57] RH_02km – mean relative humidity between surface and 2 km AGL layer. Units are %.

[58] RH_25km – mean relative humidity between 2 and 5 km AGL layer. Units are %.

[59] RH_HGL – mean relative humidity in a hail growth layer (between 0°C and -20°C). Units are %.

**Kinematic parameters:**

[60] BS_01km – bulk wind shear between surface and 1 km AGL. Units are m/s.

[61] BS_02km – bulk wind shear between surface and 2 km AGL. Units are m/s.

[62] BS_03km – bulk wind shear between surface and 3 km AGL. Units are m/s.

[63] BS_06km – bulk wind shear between surface and 6 km AGL. Units are m/s.

[64] BS_08km – bulk wind shear between surface and 8 km AGL. Units are m/s.

[65] BS_36km – bulk wind shear between 3 and 6 km AGL. Units are m/s. 	

[66] BS_18km – bulk wind shear between 1 and 8 km AGL. Units are m/s. 	

[67] BS_EFF_MU – effective shear based on most-unstable parcel (highest theta-e between surface and 3 km AGL). See Thompson et al. (2007), doi: 10.1175/WAF969.1 for further details. Units are m/s. 	

[68] BS_EFF_SB – effective shear based on surface-based parcel. See Thompson et al. (2007), doi: 10.1175/WAF969.1 for further details. Units are m/s. 	 	

[69] BS_EFF_ML – effective shear based on mixed-layer parcel (theta and mixing ratio averaged over 0–500m AGL layer and initialized from surface). See Thompson et al. (2007), doi: 10.1175/WAF969.1 for further details. Units are m/s. 		

[70] BS_SFC_to_HGL – bulk wind shear between surface and -10°C. Units are m/s.  	

[71] BS_MU_LFC_to_HGL – bulk wind shear between most-unstable level of free convection and -10°C. Units are m/s.    	

[72] BS_SB_LFC_to_HGL – bulk wind shear between surface-based level of free convection and -10°C. Units are m/s.    	 	

[73] BS_ML_LFC_to_HGL – bulk wind shear between mixed-layer level of free convection and -10°C. Units are m/s.    	 

[74] MW_01km – mean wind speed between surface and 1 km AGL layer. Units are m/s. 

[75] MW_02km – mean wind speed between surface and 2 km AGL layer. Units are m/s. 

[76] MW_06km – mean wind speed between surface and 6 km AGL layer. Units are m/s.  

[77] MW_13km – mean wind speed between 1 and 3 km AGL layer. Units are m/s.  

[78] SRH_100m_RM – storm-relative helicity between surface and 100m AGL for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.  

[79] SRH_500m_RM – storm-relative helicity between surface and 500m AGL for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.   

[80] SRH_1km_RM – storm-relative helicity between surface and 1 km AGL for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.   	

[81] SRH_3km_RM – storm-relative helicity between surface and 3 km AGL for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.   	

[82] SRH_100m_LM – storm-relative helicity between surface and 100m AGL for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.   

[83] SRH_500m_LM – storm-relative helicity between surface and 500m AGL for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.    

[84] SRH_1km_LM – storm-relative helicity between surface and 1 km AGL for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.    	

[85] SRH_3km_LM – storm-relative helicity between surface and 3 km AGL for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m2/s2.    	

[86] Bunkers_RM_A – azimuth for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are °.   

[87] Bunkers_RM_M – wind speed for right-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m/s. 

[88] Bunkers_LM_A  – azimuth for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are °.	

[89] Bunkers_LM_M – wind speed for left-moving supercell vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m/s.  	

[90] Bunkers_MW_A  – azimuth for mean storm motion vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are °.	

[91] Bunkers_MW_M – wind speed for mean storm motion vector. See Bunkers et al. (2002), doi: tinyurl.com/yuk4wvwk  for further details. Units are m/s.  	

**Composite parameters:**

[92] K_Index 	– based on original formula from George (1960): "Weather Forecasting for Aeronautics" Academic Press, London, 1960, p. 673. Units are K.

[93] Showalter_Index – based on original formula from Showalter (1953), doi: 10.1175/1520-0477-34.6.250. Units are K.  

[94] TotalTotals_Index – based on original formula from Miller (1972): "Notes on analysis and severe-storm forecasting procedures of the Air Force Global Weather Central", AWS Tech. Rpt. 200(rev), Air Weather Service, Scott AFB, IL. Units are K.

[95] SWEAT_Index – based on original formula from Bidner (1970): "The Air Force Global Weather Central severe weather threat (SWEAT) index—A preliminary report". Air Weather Service Aerospace Sciences Review, AWS RP 105-2, No. 70-3, 2-5. Parameter is dimensionless.
	
[96] STP – based on the fixed layer formula currently used on the Storm Prediction Center mesoanalysis (https://www.spc.noaa.gov/exper/mesoanalysis/) as of 1 March 2021. Parameter is dimensionless. 	

[97] STP_new – based on original formula from Coffer et al. (2019), doi: 10.1175/WAF-D-19-0115.1. Parameter is dimensionless.	

[98] SCP – based on Thompson et al. (2007), "An update to the supercell composite and significant tornado parameters". Preprints, 22nd Conf. on Severe Local Storms, Hyannis, MA, Amer. Meteor. Soc. P (Vol. 8), but with effective SRH replaced with surface to 3 km AGL SRH and effective bulk wind shear replaced with surface to 6 km AGL bulk wind shear. Parameter is dimensionless.  	

[99] SCP_new – based on formula from Gropp and Davenport (2018), doi: 10.1175/WAF-D-17-0150.1, but with effective SRH replaced with surface to 3 km AGL SRH. Parameter is dimensionless.	 	

[100] SHIP – based on formula currently used on the Storm Prediction Center mesoanalysis (https://www.spc.noaa.gov/exper/mesoanalysis/) as of 1 March 2021. Parameter is dimensionless.  	

[101] DCP – based on formula currently used on the Storm Prediction Center mesoanalysis (https://www.spc.noaa.gov/exper/mesoanalysis/) as of 1 March 2021. Parameter is dimensionless.   	

[102] MU_WMAXSHEAR – most-unstable WMAX multiplied by surface to 6 km AGL bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2. 	 	

[103] SB_WMAXSHEAR – surface-based WMAX multiplied by surface to 6 km AGL bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2. 	 		

[104] ML_WMAXSHEAR – mixed-layer WMAX multiplied by surface to 6 km AGL bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2. 	 	 	

[105] MU_EFF_WMAXSHEAR – most-unstable WMAX multiplied by most-unstable effective bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2. 	 	 	

[106] SB_EFF_WMAXSHEAR – surface-based WMAX multiplied by surface-based effective bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2. 	 	  	

[107] ML_EFF_WMAXSHEAR – mixed-layer WMAX multiplied by mixed-layer effective bulk wind shear. See Taszarek et al. (2020), doi: 10.1175/JCLI-D-20-0346.1 for further details. Units are m2/s2.