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=2019

Select Year:

Max VTEC ETN listing for 2019

Table generated at: 2019-04-25T09:27:59Z

phenomena AS BH BZ CF DS DU EC FA FF FG FL FR FW FZ GL HU HW HZ IJ IS LO LS LW MA MF RB RP SC SE SI SM SQ SR SU SV SW TO TR UP WC WI WS WW ZF
significance Y S W A S W Y W Y W Y W A W Y A W Y A W Y Y A W A W A W S A W A W Y W Y A S W Y Y W Y Y S Y A W Y Y W A W W Y A W Y A W A W A W Y A W Y Y A W Y Y
wfo
ABQ 1 3 1 5 11 11 11 13 30 4 17 4 27 9 11 18 5
ABR 6 1 11 1 15 52 1 1 1 1 3 12 2 8 7 27
AFC 4 1 2 1 3 1 5 3 4 22
AFG 22 2 3 1 3 1 3 16 18 22 26 86
AJK 1 10 9 10 4 6 5 18
AKQ 5 1 4 4 1 5 16 2 10 11 5 45 15 45 4 46 44 91 40 1 2 5 2 1 3
ALY 1 2 14 14 2 27 1 1 1 1 13 3 74 1 3 5 8 5 7 27
AMA 1 6 11 2 8 11 1 4 5 75 35 14 6 7 1 1 11 5
APX 2 1 4 2 1 3 11 1 1 1 28 2 4 5 10 22
ARX 1 2 13 2 4 47 1 1 1 1 8 3 8 10 20
BGM 1 7 10 1 3 1 1 1 1 9 8 71 3 2 3 3 8 9 24
BIS 4 1 3 2 18 13 1 2 1 1 7 22 4 9 5 24
BMX 1 3 39 1 6 43 5 85 76 86 58 5 1 1 1
BOI 3 1 4 7 4 3 4 19
BOU 4 5 1 2 5 7 1 1 3 7 9 21
BOX 1 3 1 3 2 11 8 1 6 5 22 1 1 12 25 3 4 10 60 9 3 2 2 2 7 2 5 12 5 6 21
BRO 4 1 2 22 2 3 4 6 3 25 3 27 19 1 40 6 2 1 8
BTV 3 11 1 17 1 1 8 3 7 8 4 5 17
BUF 2 3 9 5 2 3 1 7 9 3 3 1 1 5 2 47 7 1 1 7 71 4 2 2 3 13 10 9 32
BYZ 2 8 1 3 1 1 3 1 11 9 9 9 20
CAE 2 9 30 10 3 1 3 12 1 45 25 89 19 2 1
CAR 4 1 2 8 11 1 3 9 10 18 2 1 40 5 2 2 3 2 13 2 15 8 7 8 20
CHS 1 1 1 20 11 11 2 2 6 7 8 11 11 1 26 1 19 89 9 3
CLE 1 3 9 11 2 1 51 3 8 1 1 1 5 3 4 6 27 1 1 27 28 69 9 2 1 1 1 4 7 2 4 22
CRP 3 1 4 2 27 4 1 2 1 2 4 4 9 19 4 31 40 21 2 2 8
CTP 2 13 2 2 7 1 1 1 1 6 93 24 69 4 1 2 3 6 4 4 22
CYS 2 1 1 14 1 7 18 23 19 1 2 7 10 10 22 3
DDC 1 1 17 1 4 2 2 3 76 5 2 2 2 15 1
DLH 1 2 3 4 6 6 2 5 1 1 1 1 23 1 1 2 2 7 23 1 7 9 21
DMX 2 1 20 2 3 7 32 38 1 1 8 2 3 11 7 5 8 27
DTX 1 1 2 5 1 15 20 1 1 1 4 2 3 1 19 2 2 1 28 8 4 10 1 1 2 4 2 2 15
DVN 1 7 1 1 7 29 84 1 1 3 18 2 3 7 7 4 6 20
EAX 1 2 2 1 6 9 95 1 1 2 1 80 13 1 1 5 8 5 3 15
EKA 6 1 11 5 13 11 2 6 8 2 10 1 5 13 16 1 1 1 3 1 50 2 10 1 6 12 5 7 9
EPZ 1 9 1 1 1 1 1 5 8 4 6 13 19 1 2 3 3
EWX 1 21 3 3 23 2 4 4 3 98 48 49 7 3 2
FFC 2 8 3 10 7 190 9 85 67 89 47 2 6 1 1 3
FGF 6 16 18 14 1 38 1 1 5 21 2 9 9 53
FGZ 1 4 4 2 14 1 1 1 9 2 5 7
FSD 5 1 11 1 7 24 154 1 1 1 1 1 3 9 4 7 5 24
FWD 1 29 2 3 12 65 1 99 123 38 16 7 1 4
GGW 1 5 14 9 9 1 1 1 2 4 5 21 3 3 13
GID 3 1 13 8 11 9 18 1 2 4 47 32 1 4 3 3 19
GJT 3 15 3 4 3 12 13 25
GLD 4 1 1 2 2 16 3 4 2 2 47 7 1 4 4 1 11
GRB 1 2 5 6 1 5 42 1 4 6 1 1 5 33 1 5 1 1 9 1 6 9 20
GRR 1 1 3 3 3 8 20 1 1 2 5 1 1 2 16 28 8 1 4 1 3 2 2 2 20
GSP 3 12 65 13 4 15 29 2 1 2 2 6 66 39 88 18 3 17 3 3 10 1
GUM 3 4 1 2 8 6 4002 2 6 1 1 2 11 4002 4002
GYX 1 4 2 7 3 4 5 6 25 1 10 18 2 1 51 10 2 3 4 2 12 2 8 6 6 8 20
HFO 38 4 3 3 2 2 6 20 18 9 27 1 22 4 2 6
HGX 1 1 22 1 1 31 22 1 2 5 5 1 3 23 28 11 37 99 64 1 53 18 9
HNX 1 16 4 13 12 7 7 3 7 1 1 12 7 28 11 11 20
HUN 1 47 1 9 2 25 1 6 85 50 57 19 6 1 1
ICT 1 1 5 15 13 2 3 2 2 1 76 27 4 11 2 3 12
ILM 7 1 37 10 20 3 2 3 4 6 15 12 5 31 45 13 91 8 2
ILN 4 18 43 8 5 50 12 1 1 2 4 27 51 63 14 1 1 5 8 2 2 14
ILX 3 2 4 1 10 35 1 2 2 1 3 26 1 1 5 10 2 2 16
IND 3 9 9 1 6 3 224 1 1 12 24 11 1 1 3 7 2 2 8 1
IWX 1 1 2 27 1 2 5 1 1 1 14 28 12 2 1 1 3 5 1 2 9
JAN 10 6 47 4 101 4 101 172 83 64 4 1 1 1
JAX 2 2 9 11 12 4 1 5 8 5 6 46 9 8 24 3 48 1 87 16 7
JKL 3 23 26 2 2 2 12 59 1 1 2 1 2 63 1 5 1 9
JSJ 1 36 8 24 12 1
KEY 3 68 1 22
LBF 2 2 8 12 4 4 3 11 1 2 2 3 5 4 1 14 2
LCH 2 5 10 3 13 19 57 1 2 4 6 1 3 1 24 20 24 81 48 100 10 9 1
LIX 3 1 1 8 2 1 25 37 2 2 4 102 20 26 44 37 83 26 5 1
LKN 2 6 5 1 2 4 1 2 11 1 6 24 5
LMK 4 15 37 1 5 3 1 48 26 1 1 1 27 32 63 7 1 11 2 12
LOT 1 3 4 1 8 14 51 84 9 16 1 1 26 2 6 5 8 41 1 11 26 2 1 5 2 1 5 7 2 5 17
LOX 12 3 2 63 7 12 6 2 10 4 8 9 16 1 6 1 2 14 60 2 1 2 13 10 1 42 2 3 12
LSX 3 4 2 10 99 2 1 1 1 32 28 5 1 1 5 8 3 2 18
LUB 1 1 1 9 5 5 5 4 5 94 31 17 1 11 1 3 1
LWX 1 19 3 19 1 3 12 19 1 1 12 1 4 29 78 5 1 42 90 15 2 6 14 6 8 22
LZK 2 7 1 4 20 10 59 17 2 2 1 33 68 23 6 1 7 7
MAF 1 27 6 4 8 8 16 21 97 53 19 10 15 1 1 3
MEG 1 25 20 4 29 10 133 34 1 2 2 46 55 22 11 5
MFL 2 4 13 1 1 60 3 24 16 1 1 92 5 2
MFR 1 9 7 9 9 2 8 14 14 7 2 7 9 12 5 9 1 37 8 22 1 1 5 1 16 16 11 15 23 8
MHX 3 4 1 1 7 1 1 3 8 12 1 3 10 7 42 2 7 46 15 91 2 7 1
MKX 1 6 2 7 2 53 15 27 1 1 3 10 40 1 1 3 3 7 1 8 4 4 5 14
MLB 10 6 1 3 6 7 32 10 20 4 1 92 21 4 4 1 2
MOB 1 2 21 1 2 20 34 1 1 3 3 73 19 18 27 4 34 60 86 12 8 1 1
MPX 4 1 6 4 6 1 44 1 2 1 3 11 2 10 9 26
MQT 3 2 3 2 2 13 18 6 24 1 3 3 27 1 3 10 2 8 4 13 28
MRX 2 33 43 1 8 2 21 17 2 2 2 5 9 66 13 57 3 19 1 1 5
MSO 2 1 3 2 6 4 2 1 4 7 6 10 40 1
MTR 4 7 1 17 27 4 4 1 13 2 12 17 3 3 14 16 71 1 2 1 2 12 2
OAX 2 1 18 3 22 5 56 15 2 2 47 13 1 1 7 7 5 5 19
OHX 1 1 49 3 35 3 43 131 1 1 20 57 10 6 3
OKX 1 10 1 6 21 3 5 2 2 2 13 14 1 1 5 14 7 53 8 1 1 5 1 74 2 2 7 3 3 11 2
OTX 1 1 2 5 4 1 3 1 5 1 9 10 25
OUN 1 3 15 2 13 20 2 1 1 1 3 5 94 110 4 1 15 1 1 12 1
PAH 4 38 20 2 10 6 72 1 1 1 32 34 24 31 1 9 1 3 10
PBZ 4 10 6 1 2 13 4 1 2 1 30 69 5 2 6 5 5 6 20
PDT 2 1 6 5 1 3 6 16 2 1 8 6 8 19
PHI 2 1 7 3 12 33 2 4 6 1 1 1 10 12 1 1 3 16 6 46 4 1 1 17 2 74 5 1 2 2 2 7 5 6 16 1
PIH 3 6 8 2 2 6 1 2 1 2 4 4 6 17 2
PQR 1 4 3 2 2 2 4 16 8 12 1 2 79 8 45 1 3 30 5 4 6 29 1
PSR 1 1 13 24 1 4 6 1 2 2 2 1 2 2 1 15 1 2 3
PUB 3 1 4 6 7 4 5 2 1 12 12 25
RAH 2 15 1 4 2 29 4 4 46 47 91 33 4 1 1 4
REV 2 1 1 4 4 3 1 19 1 9 11 8 20 1
RIW 1 2 5 6 5 1 4 9 7 24
RLX 6 28 21 1 1 2 1 1 9 70 31 63 3 8 7 5 6 21
RNK 2 13 49 1 7 1 18 1 2 6 70 38 88 33 1 5 15 3 3 21 1
SEW 1 7 4 1 6 3 7 21 27 4 3 21 71 3 1 20 1 11 5 8 29
SGF 3 16 15 1 2 14 16 3 2 1