Alert archive / Iowa / Tornado Warnings in 2005
Tornado Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Mar 30, 2005, 12:43 PM CST for Hamilton County, Webster County, Iowa. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2005, 12:43 PM CST (18:43 UTC)
- Expired
- Mar 30, 2005, 1:15 PM CST
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
Counties Hamilton County, IA, Webster County, IA
The radar
The Des Moines radar (KDMX), 86 km from the middle of the area, began a volume at 18:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 30, 8:40 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 6.7 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 585 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 916 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDMX 301844 TORDMX IAC079-187-301915- /O.NEW.KDMX.TO.W.0002.050330T1843Z-050330T1915Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 1243 PM CST WED MAR 30 2005 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... NORTHERN HAMILTON COUNTY IN CENTRAL IOWA. EASTERN WEBSTER COUNTY IN CENTRAL IOWA. * UNTIL 115 PM CST. * AT 1238 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR WEBSTER CITY...OR 14 MILES EAST OF FORT DODGE...AND MOVING NORTH AT 20 MPH. * THE STORM WILL REMAIN OVER MAINLY RURAL AREAS OF EASTERN WEBSTER AND NORTHERN HAMILTON COUNTIES. THERE HAVE BEEN SEVERAL REPORTS OF SHORT LIVED TORNODOES OVER EASTERN WEBSTER COUNTY. THESE WILL LIKELY CONTINUE THROUGH 115 PM. TORNADOES ARE POSSIBLE FROM ANY STORM IN THE WARNED AREA. THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A CAR...SEEK SHELTER IN A REINFORCED BUILDING. LAT...LON 4254 9414 4244 9421 4237 9358 4256 9352 $$ JOHNSON
2 follow-up statements
000 WWUS53 KDMX 301900 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1258 PM CST WED MAR 30 2005 IAC079-187-301915- /O.CON.KDMX.TO.W.0002.000000T0000Z-050330T1915Z/ WEBSTER IA-HAMILTON IA- 1258 PM CST WED MAR 30 2005 ...A TORNADO WARNING CONTINUES FOR NORTHERN HAMILTON AND EASTERN WEBSTER COUNTIES UNTIL 115 PM CST... AT 1253 PM CST...SEVERAL THUNDERSTORMS WERE IN THE WARNED AREA MOVING NORTH AT 25 MPH. TORNADOES REMAIN POSSIBLE IN THIS AREA THROUGH 115 PM. THE STRONGEST STORM HAS MOVED NORTH INTO WRIGHT COUNTY WHICH PRODUCED A TORNADO NORTHEAST OF WEBSTER CITY AT 1250 PM. THE TORNADO RISK SHOULD DIMINISH AFTER 115 PM. LAT...LON 4254 9414 4244 9421 4237 9358 4256 9352 $$ JOHNSON
000 WWUS53 KDMX 301911 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 111 PM CST WED MAR 30 2005 IAC079-187-301921- /O.EXP.KDMX.TO.W.0002.000000T0000Z-050330T1915Z/ WEBSTER IA-HAMILTON IA- 111 PM CST WED MAR 30 2005 ...THE TORNADO WARNING FOR NORTHERN HAMILTON AND EASTERN WEBSTER COUNTIES HAS BEEN ALLOWED TO EXPIRE... AT 108 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA. THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4254 9414 4244 9421 4237 9358 4256 9352 $$ JOHNSON
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 3:38 AM CST | Severe Thunderstorm Warning | DMX | Kossuth | 22 min |
| Mar 30, 4:24 AM CST | Severe Thunderstorm Warning | DMX | Emmet | 21 min |
| Mar 30, 9:21 AM CST | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 45 min |
| Mar 30, 10:00 AM CST | Severe Thunderstorm Warning | DMX | Ringgold | 45 min |
| Mar 30, 10:58 AM CST | Severe Thunderstorm Warning | DMX | Wayne | 47 min |
| Mar 30, 11:20 AM CST | Severe Thunderstorm Warning | DMX | Polk | 28 min |
| Mar 30, 11:24 AM CST | Severe Thunderstorm Warning | DMX | Calhoun | 36 min |
| Mar 30, 11:31 AM CST | Severe Thunderstorm Warning | DMX | Dallas | 29 min |
| Mar 30, 12:06 PM CST | Severe Thunderstorm Warning | DMX | Story | 24 min |
| Mar 30, 12:13 PM CST | Tornado Warning | DMX | Webster | 32 min |
| Mar 30, 12:55 PM CST | Severe Thunderstorm Warning | DMX | Dallas | 50 min |
| Mar 30, 12:55 PM CST | Tornado Warning | DMX | Wright | 35 min |
| Mar 30, 1:21 PM CST | Severe Thunderstorm Warning | DMX | Butler | 39 min |
| Mar 30, 1:33 PM CST | Severe Thunderstorm Warning | DMX | Poweshiek | 42 min |
| Mar 30, 1:43 PM CST | Tornado Warning | DMX | Cerro Gordo | 32 min |
| Mar 30, 1:46 PM CST | Severe Thunderstorm Warning | DMX | Bremer | 44 min |
| Mar 30, 1:51 PM CST | Tornado Warning | DMX | Worth | 39 min |
| Mar 30, 2:36 PM CST | Severe Thunderstorm Warning | DMX | Jasper | 24 min |
Nearby
Tornado Warnings in Iowa, 2005Every tornado warning in 2005Tornadoes in 2005
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.