Archived NWS Watch/Warnings
This page allows you to generate a custom GIS shapefile or Google Earth KML of NWS issued watches
and warnings for a time period of your choice. Please be sure to read the
archive status and dbf schema below. The IEM's archive is certainly not complete or official.
If you are looking for a real-time source of warning shapefiles,
you can find that here.
Due to transient server load or other issues, this application sometimes fails to
generate output. You may wish to try shorting the duration of your
request or email
us for help.
Shapefile DBF schema:
| WFO | Three letter ID for issuing Weather Forecast Office |
|---|
| ISSUED | String representing product initial valid GMT timestamp YYYYMMDDHHMM |
|---|
| EXPIRED | String representing product expiration, this is not the original
product expiration, but the actual time the product was no longer
valid. For example, the product could have been extended in time
or cancelled. |
|---|
| PHENOM | VTEC phenomena code. Ex) SV == Severe Thunderstorm , TO == Tornado |
|---|
| GTYPE | Geographical type of polygon. C == County, P == Polygon |
|---|
| SIG | VTEC significance. Ex) A == Watch, W == Warning |
|---|
| ETN | VTEC Event Tracking Number |
|---|
| STATUS | VTEC last value of status for the product. Often EXP == Expire |
|---|
| NWS_UGC | NWS code used for a zone of a county |
|---|
| AREA_KM2 | Area of the geometry in sq kilometers (Projection: EPSG 2163) |
|---|
|
Pre-generated zip files
These files are same as you could download from the form on the left, just
you don't have to wait so long! The 2012 data is current up until
roughly 2 AM this morning.
| Year | All | Limit Tor,Svr,Mar,FF | Limit Storm Based
Tor,Svr,Mar,FF |
|---|
| 1986 | Zip (9 MB) | Zip (9 MB) | N/A (0 MB) |
|---|
| 1987 | Zip (6.63 MB) | Zip (6.63 MB) | N/A (0 MB) |
|---|
| 1988 | Zip (6.78 MB) | Zip (6.78 MB) | N/A (0 MB) |
|---|
| 1989 | Zip (10.56 MB) | Zip (10.56 MB) | N/A (0 MB) |
|---|
| 1990 | Zip (12.78 MB) | Zip (12.78 MB) | N/A (0 MB) |
|---|
| 1991 | Zip (12.46 MB) | Zip (12.46 MB) | N/A (0 MB) |
|---|
| 1992 | Zip (12.27 MB) | Zip (12.27 MB) | N/A (0 MB) |
|---|
| 1993 | Zip (13.84 MB) | Zip (13.84 MB) | N/A (0 MB) |
|---|
| 1994 | Zip (14.87 MB) | Zip (14.87 MB) | N/A (0 MB) |
|---|
| 1995 | Zip (24.51 MB) | Zip (24.51 MB) | N/A (0 MB) |
|---|
| 1996 | Zip (25.77 MB) | Zip (25.77 MB) | N/A (0 MB) |
|---|
| 1997 | Zip (25.1 MB) | Zip (25.1 MB) | N/A (0 MB) |
|---|
| 1998 | Zip (33.08 MB) | Zip (33.08 MB) | N/A (0 MB) |
|---|
| 1999 | Zip (24.5 MB) | Zip (24.5 MB) | N/A (0 MB) |
|---|
| 2000 | Zip (26.23 MB) | Zip (26.23 MB) | N/A (0 MB) |
|---|
| 2001 | Zip (25.3 MB) | Zip (25.3 MB) | N/A (0 MB) |
|---|
| 2002 | Zip (26.32 MB) | Zip (26.32 MB) | Zip (0.8 MB) |
|---|
| 2003 | Zip (30.62 MB) | Zip (30.62 MB) | Zip (1.31 MB) |
|---|
| 2004 | Zip (34.24 MB) | Zip (34.24 MB) | Zip (1.52 MB) |
|---|
| 2005 | Zip (294.32 MB) | Zip (216.54 MB) | Zip (1.4 MB) |
|---|
| 2006 | Zip (424.41 MB) | Zip (75.08 MB) | Zip (1.79 MB) |
|---|
| 2007 | Zip (522 MB) | Zip (101.1 MB) | Zip (1.73 MB) |
|---|
| 2008 | Zip (713.5 MB) | Zip (121.9 MB) | Zip (2.64 MB) |
|---|
| 2009 | Zip (829.41 MB) | Zip (110.36 MB) | Zip (2.24 MB) |
|---|
| 2010 | Zip (978.82 MB) | Zip (114.56 MB) | Zip (2.17 MB) |
|---|
| 2011 | Zip (766.81 MB) | Zip (124.87 MB) | Zip (2.81 MB) |
|---|
| 2012 | Zip (102.03 MB) | Zip (3.78 MB) | Zip (0.07 MB) |
|---|
|
Archive status:
| Dataset component | Start Time | Notes |
|---|
Tornado
Severe T'storm
Flash Flood
Special Marine |
1 Jan 2002 (Polygons)
1 Jan 1986 (Counties) |
Only the initial polygon is used. Polygon updates in the SVS
statements are ignored. The VTEC attributes didn't appear until
they became operational. |
| All VTEC watch/warn |
12 Nov 2005 |
Products other than TOR, SVR |
| SVR,TOR Watch by County |
12 Nov 2005 |
|
Related