1. NWS Resources
  2. Max VTEC EventID Listing

The National Weather Service uses a system called Valid Time Event Code (VTEC) to provide more accurate tracking of its watch, warning, and advisories. The IEM attempts to provide a high fidelity database of these products. The following table is a diagnostic providing the largest VTEC eventids (ETN) for each NWS Forecast Office, each phenomena and significance for the given year. Pro-tip: Use the search box to the upper right of the table to search for a specific WFO.

The following JSON(P) Webservice provided the data you see presented on this page
https://mesonet.agron.iastate.edu/json/vtec_max_etn.py?year=2024

Select Year:

Max VTEC ETN listing for 2024

Table generated at: 2024-04-29T00:00:20Z

phenomena BH BZ CF DS DU FA FF FG FL FR FW FZ GL HF HT HW HZ IS LE LO LS LW MA MF RP SC SE SQ SR SU SV TO UP WC WI WS WW ZF
significance S W A S W Y W Y W Y A W Y A W Y A W Y Y A W A W A W A W Y A W A W W W Y A W Y Y W Y S Y A W W A W W Y A W A W A W Y A W Y Y A W Y Y
wfo
ABQ 1 13 8 4 1 2 24 23 14 18 1 1 2 4 28 13 11 22 7
ABR 1 1 12 1 7 8 111 1 5 11 1 2 12
AFC 13 1 2 5 9 13 5 10 3 41
AFG 29 5 6 13 4 39 20 36 29 100
AJK 1 1 6 12 5 9 6 8 11 21 1
AKQ 6 32 7 28 3 8 10 11 28 4 1 1 1 11 12 1 1 34 12 56 1 1 5 109 50 107 9 7 4
ALY 4 1 9 1 41 4 4 1 18 1 9 9 9 20
AMA 1 5 1 17 17 1 4 4 59 10 144 3 1 1 2 7 2 2 7 4
APX 1 3 2 8 14 6 43 1 2 8 4 3 4 13
ARX 1 1 9 2 3 5 4 150 1 2 7 5 4 5 9
BGM 3 2 4 2 3 2 2 2 50 108 4 1 9 6 5 20
BIS 1 11 3 3 1 5 12 2 3 11
BMX 4 3 41 4 9 36 6 2 1 2 1 4 53 19 103 4 4 7 1 1 1 1
BOI 2 11 2 2 1 1 12 4 5 12
BOU 1 5 8 6 13 5 6 9 9 133 1 1 1 16 13 22
BOX 5 13 4 7 6 11 1 8 62 3 2 2 15 22 5 4 1 44 15 6 4 1 19 4 4 10
BRO 2 5 8 5 5 3 3 3 4 1 2 9 10 20 38 3 98 7 1 1 2 11
BTV 1 3 1 9 4 4 2 14 1 7 5 7 15
BUF 2 4 1 4 5 10 11 3 3 4 1 1 4 47 1 1 1 1 11 6 5 23
BYZ 1 7 2 3 1 3 5 8 10 22
CAE 3 11 2 4 24 6 1 1 2 16 131 29 83 5 5
CAR 1 3 4 4 4 6 3 6 11 17 1 1 4 4 32 5 4 5 2 6 5 5 15
CHS 12 13 2 5 23 12 12 1 1 16 31 6 1 43 1 1 5 13 85 4 1 2
CLE 2 4 9 1 7 28 3 2 2 6 10 1 3 1 7 8 5 38 1 108 33 123 12 1 2 9 2 2 13 1
CRP 7 1 6 3 15 7 6 7 4 5 3 4 1 3 2 3 28 15 5 42 98 34 1 3 3 12 1 1
CTP 3 3 21 4 24 5 2 3 2 2 30 108 13 1 10 5 7 14
CYS 2 8 5 11 20 20 13 111 2 1 2 1 1 17 16 26 4
DDC 1 1 16 13 16 3 4 148 20 145 2 1 1 4 1 7 1
DLH 2 7 1 1 8 16 2 56 3 1 2 2 4 9 5 4 5 17
DMX 1 1 13 1 2 6 3 2 26 147 26 1 1 4 7 2 2 9
DTX 1 1 2 8 2 2 1 2 12 15 7 4 3 49 1 1 2 121 11 1 2 1 3 2 2 1 6 1
DVN 1 2 6 10 10 3 1 2 1 3 38 95 150 19 1 1 5 6 2 4 10
EAX 1 4 3 6 10 35 4 5 3 2 125 123 149 21 1 2 3 9 2 2 5
EKA 7 11 6 1 23 2 5 9 1 10 2 2 15 27 4 5 1 1 32 51 2 19 1 4 2 18 9 9 16
EPZ 5 8 9 3 4 6 5 9 1 1 17 3 12
EWX 1 1 36 4 12 4 5 12 1 1 153 79 158 3 1 2 11 1 1
FFC 5 5 14 8 199 8 1 2 5 1 2 63 83 9 3 12 1 1 3
FGF 3 2 12 3 6 1 8 9 2 2 15
FGZ 1 1 2 5 3 13 4 4 15
FSD 2 14 8 10 3 1 6 140 11 1 3 8 3 4 10
FWD 3 7 32 26 8 56 1 3 137 117 158 27 2 4 2 1
GGW 12 4 5 1 1 4 6 1 8 2 4 6
GID 2 1 5 2 13 2 7 10 3 1 1 2 148 57 140 10 2 1 3 4 2 10
GJT 1 1 1 1 1 3 1 1 1 2 11 7 10 9 24
GLD 2 1 1 3 15 10 12 3 4 4 148 47 133 6 1 1 3 1 2 7
GRB 1 1 6 5 8 6 35 5 2 5 4 9 1
GRR 2 2 5 2 2 1 2 5 9 8 6 41 1 121 14 6 1 1 2 3 2 1 8
GSP 5 20 50 22 4 9 10 5 1 4 1 3 35 106 3 2 9 2 3 7
GUM 7 1 1 16 18 2 2 1 1 11 44 3 4 5 39 1
GYX 5 5 4 13 7 9 18 7 1 33 12 18 1 1 4 3 38 13 5 5 3 9 8 7 15
HFO 1 5 29 7 1 5 3 11 53 25 6 18 1 2 1 24 2 4
HGX 1 1 3 8 34 7 18 50 1 1 3 4 2 3 10 60 19 15 41 99 65 158 25 1 4 7 1
HNX 1 4 30 1 20 2 3 2 7 3 4 29 8 11 17
HUN 2 1 3 7 3 1 2 51 31 82 6 1 2 8 1 1 2
ICT 1 5 1 10 9 1 4 6 1 2 3 89 63 155 39 1 1 4 14 1 1 11
ILM 7 40 2 2 18 1 8 8 1 1 28 4 6 30 1 1 4 131 27 7 7 3
ILN 2 26 6 26 6 5 1 3 4 69 68 122 36 4 3 1 7
ILX 2 2 1 1 9 8 21 3 1 1 3 129 65 154 19 1 1 3 7 2 2 5
IND 1 5 27 4 3 98 3 1 1 1 1 129 61 122 10 2 5 4 4
IWX 3 3 5 2 43 3 1 1 3 6 3 3 33 1 121 36 122 6 1 2 3 2 2 2 7
JAN 4 2 40 10 94 1 2 1 2 127 116 101 14 3 5 1 1 1
JAX 2 1 4 12 9 27 9 7 7 5 10 4 4 54 7 13 38 1 1 4 95 104 40 3 7
JKL 1 15 2 1 6 3 1 2 1 18 105 8 3 3 2 8
JSJ 1 16 118 15 1 2 5 17 20 10
KEY 2 1 3 1 2 1 131 3 27 1 58 4 1
LBF 2 4 12 1 5 7 10 2 2 8 136 15 140 2 1 3 2 4 13
LCH 2 4 4 9 33 13 16 56 1 1 1 2 5 4 4 7 97 17 35 54 79 160 19 4 19 1
LIX 1 1 6 4 1 25 46 15 51 1 2 5 6 10 2 2 4 112 13 43 2 2 53 71 101 13 4 10 1
LKN 4 1 1 9 17 5 5 1 1 14 4 10 19
LMK 1 8 2 4 3 7 3 1 1 1 129 67 78 24 3 6 1 5
LOT 2 4 10 1 2 9 15 33 3 3 1 1 1 2 7 14 8 6 47 1 39 18 120 11 1 1 5 4 3 5 10
LOX 8 7 4 70 31 5 1 8 3 6 14 17 8 10 2 2 37 64 1 2 16 13 2 38 4 7 10
LSX 2 9 6 5 23 3 1 3 4 125 132 154 44 2 3 6 1 1 5
LUB 1 1 5 1 7 17 15 3 4 135 44 152 1 1 3 10 1 1 4 1
LWX 11 13 52 7 32 9 38 28 3 1 1 1 2 9 13 2 5 34 2 82 1 1 109 30 107 3 3 15 5 9 14 1
LZK 3 3 14 5 26 12 4 1 1 3 1 130 103 160 17 1 6 5 2 2 8 1
MAF 1 4 3 5 17 16 18 20 153 18 110 1 3 17 1 1 1
MEG 3 16 1 2 9 27 5 5 1 3 1 1 130 55 79 4 3 12 1 1 3 1
MFL 3 1 17 2 2 4 6 121 3 24 32 7 17 58 8 1 6
MFR 4 1 3 2 5 2 6 6 2 2 3 8 21 5 4 5 38 8 28 1 2 1 3 1 17 8 14 25 1
MHX 13 5 5 18 2 2 5 4 2 1 10 14 1 1 2 46 12 43 1 1 7 131 27 7 5 8
MKX 1 1 10 6 10 1 3 11 16 6 11 44 1 1 151 33 150 13 2 3 1 2 4 9 1
MLB 17 1 2 5 1 4 7 1 44 1 16 36 4 17 104 10 2 6
MOB 1 2 3 26 3 8 44 1 1 1 1 6 9 1 1 4 49 10 17 34 2 1 4 10 53 46 102 13 4 7 1
MPX 10 1 2 5 6 4 1 2 5 7 2 5 12
MQT 2 18 26 4 1 6 71 2 1 9 2 4 3 5 14
MRX 4 4 13 1 3 4 6 1 3 5 7 13 80 4 1 1 3 18 1 2 7
MSO 1 4 2 2 2 1 2 2 2 7 8 36 1
MTR 3 7 4 12 64 2 2 8 4 17 1 8 24 1 3 68 73 3 6 5 3 7
OAX 2 22 6 13 1 5 8 3 1 1 2 89 48 145 51 2 1 5 6 3 4 8
OHX 1 6 1 3 1 11 3 1 11 79 2 4 1 1 2
OKX 5 30 6 26 6 20 46 1 2 4 9 3 2 3 14 19 3 2 1 8 48 4 2 2 8 3 2 5
OTX 1 10 2 1 2 11 1 1 1 4 6 5 21
OUN 1 1 3 34 13 11 1 3 8 8 10 1 2 137 245 159 74 1 1 3 12 2 3 7 3
PAH 1 16 2 6 14 2 1 1 1 129 77 76 33 3 5 5
PBZ 4 26 10 14 6 18 42 7 5 2 4 1 2 10 108 55 123 7 3 10 5 6 14
PDT 1 14 1 5 1 2 1 2 17 10 7 23 7
PHI 6 9 31 6 81 19 4 88 7 1 2 3 11 17 1 3 21 9 44 39 2 3 109 6 87 1 13 2 4 7
PIH 1 4 2 2 1 1 2 3 7 6 9 19
PQR 7 2 4 15 4 5 5 1 11 24 2 3 5 2 64 3 20 2 4 1 2 1 1 4 9 8 20
PSR 1 3 1 3 5 1 11 4 5 2 4 2 19 2
PUB 2 1 4 1 28 29 5 8 7 134 2 1 5 16 13 21
RAH 2 9 4 2 19 4 1 1 3 131 55 106 7 4 1
REV 1 2 3 17 3 10 7 10 20 1
RIW 1 2 2 1 6 6 3 2 2 11 13 23
RLX 6 45 13 24 5 1 1 2 109 94 123 14 1 3 10 3 5 11
RNK 4 14 14 1 6 18 2 1 1 3 109 34 106 12 1 3 13 3 4 9
SEW 1 1 1 6 6 2 9 3 17 23 3 71 1 1 1 1 1 10 8 8 14
SGF 2 7 18 14 4 15 3 7 2 1 125 94 159 19 1 2 7 1 8
SGX 10 3 5 2 70 11 1 5 1 8 1 2 5 4 4 5 13 19 11 4 2 23 5 7 13
SHV 4 5 30 22 8 103 4 1 1 5 126 88 160 6 2 7 1 1 2
SJT 1 21 3 6 1 3 153 120 152 8 3 6 2
SLC 1 6 5 2 11 4 2 10 9 11 24
STO 1 4 6 10 5 2 2 6 1 12 9 15 13
TAE 1 2 6 3 4 21 24 12 62 1 2 1 5 8 1 3 3 4 72 5 38 37 1 1 1 8 53 80 104 49 3 9 1
TBW 2 1 2 1 2 5 2 1 2 2 1 2 1 45 4 16 22 3 20 104 10 2 3
TFX 1 7 8 1 1 2 6 7 7 2 2 9 12 13 27
TOP 1 4 3 2 8 8 2 2 4 1 1 2 1 124 71 145 19 2 1 2 7 2 1 7
TSA 1 23 3 4 8 7 1 2 2 2 1 1 126 149 159 37 1 4 8 2 4 8
TWC 1 1 4 4 5 1 1 4 4 6 1 4 13
UNR 1 12 4 6 2 1 111 16 1 4 13 3 2 15
VEF 1 2 5 1 1 1 4 2 1 3 18 8 8 14