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=2018

Select Year:

Max VTEC ETN listing for 2018

Table generated at: 2018-06-21T19:12:48Z

phenomena AF BH BZ CF DS DU EH FA FF FG FL FR FW FZ GL HF HT HW HY HZ IS LE LO LS LW MA MF MH RB RP SC SE SI SM SQ SR SS SU SV SW TO TR TS UP WC WI WS WW ZF
significance Y S W A S W Y W Y A W A W Y A W Y A W Y Y A W A W A W A W Y A W W A W W W Y A W Y Y W Y Y Y S Y A W Y Y W A W A W Y A W Y A W A W A W Y A W Y A W Y Y A W Y Y
wfo
AAQ 3 3 3
ABQ 37 1 15 1 47 50 1 10 14 1 153 135 6 40 4 4 16 4
ABR 3 14 2 1 3 13 7 1 1 3 2 181 84 180 5 1 9 3 8 7 19
AFC 2 1 2 9 1 3 5 5 3 2 17
AFG 26 1 1 1 6 4 2 1 3 4 8 1 3 16 39 7 15 88
AJK 1 7 2 4 8 5 7 13 27
AKQ 2 1 2 11 4 17 1 35 62 3 14 7 26 3 2 1 2 8 11 1 1 1 9 57 25 2 51 1 2 8 116 64 3 55 8 3 4 2 4 8
ALY 4 14 19 2 2 17 2 1 2 2 1 187 38 94 7 1 1 4 4 8 10 26
AMA 39 5 2 3 34 44 1 3 4 7 1 2 194 166 131 9 1 15 3 1
APX 4 1 4 3 1 3 3 1 3 1 6 9 1 1 12 1 117 2 10 1 2 2 3 5 21
ARX 1 18 7 2 8 7 47 1 2 1 1 185 52 165 5 8 4 9 9 19
BGM 1 3 18 31 1 2 1 11 1 1 1 1 1 3 186 45 94 6 1 1 2 3 5 6 23
BIS 1 6 1 22 1 8 2 2 4 178 95 177 15 2 16 7 7 7 19
BMX 1 5 105 3 25 16 23 5 4 8 1 1 152 48 56 16 2 10 1 2
BOI 1 5 3 1 3 1 1 139 38 4 2 4 14
BOU 2 9 2 5 4 16 30 7 7 189 145 191 30 3 7 6 26
BOX 2 4 7 6 15 5 24 5 2 23 19 23 31 1 2 1 4 8 10 86 1 3 8 97 20 3 96 5 2 4 8 1 1 3 15 8 8 21
BRO 1 2 38 1 19 14 1 5 5 2 6 2 3 1 11 19 3 31 30 2 24 12 3 3 1 3 9 1
BTV 3 35 4 16 1 1 2 3 1 187 23 76 1 1 3 5 3 6 16
BUF 3 1 5 11 1 3 7 12 1 5 8 1 4 5 1 5 4 5 20 59 1 1 186 23 2 1 1 3 7 5 6 58
BYZ 1 4 9 17 4 5 7 28 4 163 92 7 10 11 14 32
CAE 33 1 3 8 12 5 2 1 1 1 7 15 16 64 52 5 2 1 3 5
CAR 12 2 5 4 7 3 9 8 7 2 1 13 21 1 1 55 3 4 10 1 6 1 6 6 8 10 26
CHS 11 25 8 9 5 1 1 2 5 6 7 3 10 42 13 3 35 2 1 150 27 1 52 3 4 3 1 1 3
CLE 5 6 15 39 1 6 6 62 1 1 2 7 2 1 4 1 5 16 35 1 115 34 1 2 3 5 3 5 15 1
CRP 3 6 28 1 28 16 7 3 4 8 2 3 14 17 5 50 24 27 8 1 4 7 2
CTP 7 7 56 6 8 9 9 2 1 3 1 1 2 176 53 85 10 1 1 2 3 7 8 21
CYS 1 1 4 20 4 8 10 5 10 30 34 2 189 104 18 2 5 9 15 30 1
DDC 1 3 3 1 11 8 3 2 20 33 1 5 11 194 232 131 13 1 1 11
DLH 6 1 10 18 1 12 2 2 4 4 2 3 1 1 15 3 28 182 55 183 1 4 19 1 9 12 19
DMX 2 7 4 12 9 26 39 2 3 1 188 160 195 27 1 6 6 9 9 22
DTX 4 2 2 4 6 28 1 13 17 1 1 1 1 1 11 10 2 39 1 3 21 4 2 3 4 2 7 13
DVN 1 1 4 1 2 9 11 53 57 1 1 1 167 71 195 12 5 2 4 5 28
EAX 2 14 1 4 5 15 1 3 2 2 1 173 115 172 10 1 2 7 13
EKA 5 5 2 1 4 1 1 14 2 6 19 22 3 3 4 59 1 11 1 1 3 1 8 5 5 12
EPZ 2 13 1 2 20 24 2 1 3 153 28 24 5 1
EWX 40 2 11 13 10 5 4 1 73 72 3 1 1 1 7
FFC 2 1 4 21 4 64 1 9 10 150 142 51 8 6 7 4
FGF 2 3 1 2 13 11 16 1 3 6 182 57 180 12 3 22 5 6 7 19
FGZ 2 13 23 2 5 26 1 1 9
FSD 3 9 1 4 5 121 1 1 2 1 188 68 180 4 1 8 4 11 7 21
FWD 3 6 51 1 2 6 41 5 6 2 3 1 1 1 1 70 153 39 9 6 1 1 6
GGW 1 2 13 18 2 5 11 8 1 1 2 11 162 52 4 19 9 10 25
GID 2 1 7 17 3 6 5 2 5 12 3 3 192 135 172 24 1 2 4 2 13
GJT 1 2 5 12 20 2 2 6 9 5 9 23
GLD 2 4 1 3 3 21 4 17 21 5 8 192 180 191 19 4 3 1 9
GRB 1 1 1 2 12 2 3 16 17 7 9 1 1 1 13 8 43 185 18 3 6 2 7 8 15
GRR 4 2 3 4 5 4 39 85 1 1 1 1 8 2 1 13 3 25 10 5 3 2 3 19
GSP 3 34 170 6 40 6 13 27 6 4 5 1 1 80 127 52 3 1 2 5 14 3 4 14
GUM 3 23 4 9 8 6 8 2
GYX 11 2 3 8 6 15 4 19 7 9 10 5 2 1 1 12 21 1 1 1 2 4 59 3 4 187 19 13 3 1 6 1 1 4 5 7 7 17
HEB 1 1
HFO 2 1 142 12 37 1 3 2 12 125 1 25 9 28 2 8 25 5 3 9
HGX 3 1 3 47 4 12 17 43 1 2 2 4 5 45 21 18 48 29 62 45 5 2 6 1 3
HNX 1 22 3 7 17 2 2 3 3 3 1 4 17 5 6 12
HUN 3 23 2 8 4 20 7 32 59 13 18 1 3 3 3
ICT 11 1 6 2 2 13 18 1 3 194 138 131 13 1 20 1 12
ILM 6 33 26 2 3 6 6 3 1 1 2 1 6 3 6 3 3 32 7 6 37 19 53 4 3 1 2 2
ILN 4 22 75 5 27 3 62 11 3 2 2 1 10 1 53 137 105 31 12 5 3 3 4 16
ILX 3 10 7 3 15 7 23 1 1 4 1 168 90 27 8 4 1 2 1 12
IND 3 32 8 4 14 2 175 9 1 4 1 169 53 31 10 1 5 2 3 10
IWX 3 2 8 9 2 4 5 8 61 1 6 9 1 6 7 36 42 1 1 4 5 4 2 19
JAN 1 12 5 48 6 88 10 3 5 1 152 236 47 50 1 4 1 1 2
JAX 3 1 12 131 17 8 5 2 3 6 9 2 4 5 8 96 17 12 27 2 150 103 51 3 4 9 1 1 1
JKL 7 12 83 1 13 1 15 48 5 1 1 1 6 8 34 44 31 2 1 1 6 16
JSJ 1 1 7 2 160 4 2 1 2 29 30 1 12 6
KEY 1 1 107 2 32 1 1 1001 1
LBF 3 1 1 16 2 3 3 3 3 2 1 1 4 3 190 152 184 9 3 5 8 5 11
LCH 8 26 5 30 10 75 1 2 8 9 54 18 23 1 38 64 47 17 3 11 1
LIX 2 22 4 8 9 51 1 10 3 1 8 214 11 27 1001 38 78 48 23 1001 3 2 2
LKN 3 15 3 4 1 3 1 2 2 139 32 3 19 2 4 15 1
LMK 5 24 62 5 29 3 35 9 5 2 1 5 169 125 31 16 2 6 3 6 14
LOT 4 1 1 1 11 20 4 5 10 21 83 79 2 18 20 1 1 2 13 14 59 167 37 2 1 3 2 3 2 19
LOX 5 39 4 8 17 12 3 4 3 6 13 15 1 6 5 2 3 3 68 1 12 11 49 2 2 7
LSX 1 3 7 10 14 9 52 3 2 7 2 168 129 138 4 2 2 12
LUB 2 21 6 1 25 28 2 2 3 3 4 174 134 62 2 1 23 2
LWX 3 6 44 4 142 10 42 11 18 49 1 2 2 4 5 18 1 1 1 115 129 1 116 122 85 10 2 1 7 6 5 8 21
LZK 4 31 1 1 79 6 51 13 1 2 1 4 8 1 1 2 151 208 45 28 1 5 1 7 1
MAF 3 39 1 10 2 6 25 33 2 4 18 22 154 146 4 14 2
MEG 2 3 18 45 2 45 18 111 39 6 1 7 2 1 196 185 138 32 4 9 1 2 5 1
MFL 2 1 1 1 2 25 6 1 2 3 3 1 120 1 26 20 2 3 17 8 1001 1001 3
MFR 2 1 2 1 8 3 4 8 17 24 9 10 58 8 33 1 3 4 1 7 3 46 23 7 12 22
MHX 12 1 1 7 19 3 2 7 1 1 2 8 16 3 1 2 4 55 16 62 2 7 15 55 2 3 11 1 3 4
MKX 2 2 5 17 1 2 14 13 51 2 7 1 1 1 13 14 58 167 23 3 1 4 3 4 4 17
MLB 14 1 2 1 3 59 4 1 3 13 4 5 1 4 1 10 107 5 13 31 4 56 3 17 9 3 1
MOB 1 1 1 10 39 2 16 11 30 3 1 2 2 1 3 4 5 136 17 16 29 1001 1 3 38 49 56 13 1001 1001 4 6 1
MPX 2 1 2 2 4 2 4 28 4 3 7 1 182 77 183 4 1 12 4 10 9 20
MQT 1 2 11 1 7 1 3 6 1 13 21 1 24 13 55 185 23 11 2 1 7 9 23
MRX 3 25 93 2 9 1 13 4 4 7 1 2 34 69 2 6 12 1 1 13
MSO 2 9 24 16 2 1 5 1 1 166 9 1 4 5 12 50 1
MTR 3 1 18 1 1 1 1 1 2 9 14 1 1 1 3 11 119 1 2 1 5 1
OAX 3 1 3 26 3 9 4 10 2 2 1 188 162 172 32 1 2 8 7 6 19
OHX 4 61 1 15 7 4 18 81 3 2 7 32 84 14 4 2 1 1 2 7
OKX 1 5 19 10 22 3 1 31 2 2 14 1 1 15 12 1 1 2 3 10 23 4 57 2 4 95 7 3 3 1 2 1 4 8 8 14
OTX 2 13 14 3 1 8 17 1 1 4 7 7 24
OUN 3 9 85 29 7 10 22 22 4 8 3 5 1 194 345 131 26 1 17 6
PAH 2 24 46 3 22 7 61 4 2 6 1 1 6 196 136 138 33 1 6 2 4 11
PBZ 5 38 41 5 30 1 49 46 8 1 3 1 2 1 2 176 108 4 1 1 5 2 4 6 22
PDT 17 1 2 2 2 3 1 1 5 16 2 6 18
PHI 1 3 6 16 4 37 96 5 17 13 22 1 2 3 3 15 22 1 1 2 2 51 14 1 62 1 3 95 39 3 85 2 1 4 4 1 1 2 6 6 7 18
PIH 4 11 8 1 6 21 16 1 2 2 6 139 45 10 1 17 3 4 21 1
PQR 1 1 1 7 4 14 26 4 8 71 8 75 2 4 3 8 43 1 2 6 30
PSR 1 11 5 5 13 1 2 5 7 1 17
PUB 1 2 1 38 48 6 11 193 80 191 7 8 22
RAH 36 3 11 2 4 3 1 2 2 1 80 77 55 5 3 2 1 3 7
REV 1 5 2 8 1 2 6 2 3 1 1 25 7 8 6 6 18
RIW 5 8 16 2 14 2 4 11 14 161 46 9 2 10 11 24
RLX 9 81 5 27 49 3 2 3 1 9 1 1 1 115 56 3 1 1 7 4 4 7 26
RNK 2 32 97 4 42 3 15 4 1 2 2 1 1 116 72 53 7 2 1 7 13 3 5 19 1
SEW 1 1 3 7 1 17 30 52 2 4 24 142 1 1 4 21 10 9 9 32
SGF 3 32 40 22 4 1 35 4 2 7 9 1 1 151 190 138 22 3 9 12
SGX 2 2 3 8 2 1 7 6 2 2 3 3 3 3 6 16 3 1 16 2 3 6
SHV 9 46 3 36 3 77 3 5 28 28 147 45 88 3 1 1 1 3
SJT