Alert archive / Iowa / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 97, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 25, 2012, 7:18 PM CDT for Jasper County, Marshall County, Story County, Iowa. It was in force for 28 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 25, 2012, 7:18 PM CDT (00:18 UTC)
- Expired
- May 25, 2012, 7:46 PM CDT
- In force
- 28 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Jasper County, IA, Marshall County, IA, Story County, IA
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.3 hours before the alert went out and 226 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
- 1813 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 188 m²/s²
- 0-3 km storm-relative helicity
- 490 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
442
WUUS53 KDMX 260018
SVRDMX
IAC099-127-169-260100-
/O.NEW.KDMX.SV.W.0097.120526T0018Z-120526T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
718 PM CDT FRI MAY 25 2012
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN JASPER COUNTY IN CENTRAL IOWA...
SOUTHERN MARSHALL COUNTY IN CENTRAL IOWA...
SOUTHEASTERN STORY COUNTY IN CENTRAL IOWA...
* UNTIL 800 PM CDT
* AT 714 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 11 MILES NORTHEAST OF BONDURANT...OR 18 MILES
NORTHWEST OF NEWTON...AND MOVING EAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
MARSHALLTOWN...COLLINS...BAXTER...RHODES...MELBOURNE...HAVERHILL...
LAUREL...FERGUSON...GILMAN AND LE GRAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LARGE HAIL CAN CAUSE INJURY AND PROPERTY DAMAGE. SEEK SAFETY INDOORS
UNTIL THE STORM PASSES.
&&
LAT...LON 4174 9335 4186 9335 4186 9341 4187 9342
4216 9277 4186 9276
TIME...MOT...LOC 0018Z 248DEG 45KT 4184 9329
WIND...HAIL <50MPH 1.00IN
$$
BEERENDS2 follow-up statements
209 WWUS53 KDMX 260031 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 731 PM CDT FRI MAY 25 2012 IAC169-260041- /O.CAN.KDMX.SV.W.0097.000000T0000Z-120526T0100Z/ STORY IA- 731 PM CDT FRI MAY 25 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STORY COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4176 9323 4196 9323 4216 9277 4186 9276 TIME...MOT...LOC 0031Z 248DEG 45KT 4189 9310 $$ IAC099-127-260100- /O.CON.KDMX.SV.W.0097.000000T0000Z-120526T0100Z/ MARSHALL IA-JASPER IA- 731 PM CDT FRI MAY 25 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN JASPER AND SOUTHERN MARSHALL COUNTIES UNTIL 800 PM CDT... AT 728 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 10 MILES SOUTH OF STATE CENTER...OR 13 MILES NORTHWEST OF NEWTON...MOVING EAST AT 50 MPH. LOCATIONS IMPACTED INCLUDE... MARSHALLTOWN...MELBOURNE...HAVERHILL...LAUREL...FERGUSON...GILMAN AND LE GRAND. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE FOR LARGE HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A REINFORCED BUILDING AND AWAY FROM WINDOWS. && LAT...LON 4176 9323 4196 9323 4216 9277 4186 9276 TIME...MOT...LOC 0031Z 248DEG 45KT 4189 9310 WIND...HAIL <50MPH 1.00IN $$ BEERENDS
918 WWUS53 KDMX 260046 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 746 PM CDT FRI MAY 25 2012 IAC099-127-260056- /O.CAN.KDMX.SV.W.0097.000000T0000Z-120526T0100Z/ MARSHALL IA-JASPER IA- 746 PM CDT FRI MAY 25 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN JASPER AND SOUTHERN MARSHALL COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4176 9323 4196 9323 4216 9277 4186 9276 TIME...MOT...LOC 0046Z 248DEG 45KT 4196 9287 $$ BEERENDS
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 3:04 AM CDT | Severe Thunderstorm Warning | DMX | Sac | 41 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.