Alert archive / Iowa / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 72, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 6, 2012, 4:32 AM CDT for Hamilton County, Wright County, Iowa. It was in force for 43 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
- May 6, 2012, 4:32 AM CDT (09:32 UTC)
- Expired
- May 6, 2012, 5:15 AM CDT
- In force
- 43 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hamilton County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 95 km from the middle of the area, began a volume at 09:33 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.5 hours before the alert went out and 252 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
214
WUUS53 KDMX 060932
SVRDMX
IAC079-197-061015-
/O.NEW.KDMX.SV.W.0072.120506T0932Z-120506T1015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
432 AM CDT SUN MAY 6 2012
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN HAMILTON COUNTY IN CENTRAL IOWA...
SOUTHEASTERN WRIGHT COUNTY IN NORTH CENTRAL IOWA...
* UNTIL 515 AM CDT
* AT 429 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
WEST OF WEBSTER CITY...OR 13 MILES EAST OF FORT DODGE...AND MOVING
NORTHEAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...
WEBSTER CITY...WOOLSTOCK...GALT...DOWS AND ROWAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. IF YOU ARE IN A
MOBILE HOME...GET OUT NOW...AND SEEK SHELTER IN A REINFORCED
BUILDING.
&&
LAT...LON 4289 9350 4259 9350 4240 9390 4242 9393
4247 9393 4248 9397 4253 9397
TIME...MOT...LOC 0932Z 229DEG 34KT 4248 9389
WIND...HAIL 60MPH 1.00IN
$$
ZOGG3 follow-up statements
847 WWUS53 KDMX 060945 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 445 AM CDT SUN MAY 6 2012 IAC079-197-061015- /O.CON.KDMX.SV.W.0072.000000T0000Z-120506T1015Z/ HAMILTON IA-WRIGHT IA- 445 AM CDT SUN MAY 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WRIGHT AND NORTHWESTERN HAMILTON COUNTIES UNTIL 515 AM CDT... AT 441 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES NORTH OF WEBSTER CITY...OR 18 MILES EAST OF FORT DODGE...MOVING NORTHEAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... GALT...DOWS AND ROWAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE FOR LARGE HAIL...DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A REINFORCED BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4254 9395 4289 9350 4259 9350 4242 9385 TIME...MOT...LOC 0945Z 226DEG 35KT 4257 9379 WIND...HAIL 60MPH 1.00IN $$ ZOGG
111 WWUS53 KDMX 060953 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 453 AM CDT SUN MAY 6 2012 IAC079-061003- /O.CAN.KDMX.SV.W.0072.000000T0000Z-120506T1015Z/ HAMILTON IA- 453 AM CDT SUN MAY 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HAMILTON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4289 9350 4259 9350 4256 9357 4256 9392 TIME...MOT...LOC 0953Z 226DEG 35KT 4262 9371 $$ IAC197-061015- /O.CON.KDMX.SV.W.0072.000000T0000Z-120506T1015Z/ WRIGHT IA- 453 AM CDT SUN MAY 6 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WRIGHT COUNTY UNTIL 515 AM CDT... AT 449 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES SOUTHEAST OF EAGLE GROVE...OR 23 MILES EAST OF FORT DODGE...MOVING NORTHEAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... GALT...DOWS AND ROWAN. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE FOR LARGE HAIL...DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A REINFORCED BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4289 9350 4259 9350 4256 9357 4256 9392 TIME...MOT...LOC 0953Z 226DEG 35KT 4262 9371 WIND...HAIL 60MPH 1.00IN $$ ZOGG
080 WWUS53 KDMX 061010 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 510 AM CDT SUN MAY 6 2012 IAC197-061020- /O.EXP.KDMX.SV.W.0072.000000T0000Z-120506T1015Z/ WRIGHT IA- 510 AM CDT SUN MAY 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WRIGHT COUNTY WILL EXPIRE AT 515 AM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4289 9350 4259 9350 4256 9357 4256 9392 TIME...MOT...LOC 1010Z 226DEG 35KT 4273 9355 $$ ZOGG
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 5:52 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 53 min |
| May 6, 6:30 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 45 min |
| May 6, 7:05 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 25 min |
| May 6, 7:09 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison | 22 min |
| May 6, 7:29 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 31 min |
| May 6, 7:59 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 46 min |
| May 6, 8:27 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Warren | 48 min |
| May 6, 9:03 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 42 min |
| May 6, 9:12 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 48 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2012Every severe thunderstorm warning in 2012
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.