Alert archive / Iowa / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 13, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Apr 22, 2008, 4:15 AM CDT for 4 counties in Iowa. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 22, 2008, 4:15 AM CDT (09:15 UTC)
- Expired
- Apr 22, 2008, 5:00 AM CDT
- In force
- 45 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
Counties Dallas County, IA, Madison County, IA, Polk County, IA, Warren County, IA
The radar
The Des Moines radar (KDMX), 29 km from the middle of the area, began a volume at 09:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 4:40 AM CDT | HAIL 0.88 | 3 Nne Martensdale, IA | THERE WAS DIME TO NICKEL HAIL FROM 430 TO 445 AM CDT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 9.3 hours before the alert went out and 220 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
- 1043 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KDMX 220914 SVRDMX IAC049-121-153-181-221000- /O.NEW.KDMX.SV.W.0013.080422T0915Z-080422T1000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 415 AM CDT TUE APR 22 2008 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN DALLAS COUNTY IN CENTRAL IOWA... SOUTHWESTERN POLK COUNTY IN CENTRAL IOWA... THIS INCLUDES THE CITY OF DES MOINES... NORTHEASTERN MADISON COUNTY IN SOUTH CENTRAL IOWA... NORTHERN WARREN COUNTY IN SOUTH CENTRAL IOWA... * UNTIL 500 AM CDT. * AT 410 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR PATTERSON...OR 22 MILES SOUTHWEST OF DES MOINES...AND MOVING NORTHEAST AT 37 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BEVINGTON BY 420 AM CDT... MARTENSDALE BY 425 AM CDT... CUMMING BY 430 AM CDT... SPRING HILL AND NORWALK BY 435 AM CDT... DES MOINES INT AIRPORT BY 440 AM CDT... DES MOINES BY 445 AM CDT... THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 54 AND 71. THIS INCLUDES INTERSTATE 235 BETWEEN MILE MARKERS 6 AND 12. MOVE TO AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. IF YOU LIVE IN A MOBILE HOME...SEEK SHELTER IN A STURDY BUILDING. LARGE HAIL CAN CAUSE INJURY AND PROPERTY DAMAGE. SEEK SAFETY INDOORS UNTIL THE STORM PASSES. LAT...LON 4162 9356 4135 9338 4127 9406 4149 9412 TIME...MOT...LOC 0915Z 246DEG 32KT 4138 9388 $$ RUSSELL
1 follow-up statement
000 WWUS53 KDMX 220945 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 444 AM CDT TUE APR 22 2008 IAC049-121-220954- /O.CAN.KDMX.SV.W.0013.000000T0000Z-080422T1000Z/ DALLAS IA-MADISON IA- 444 AM CDT TUE APR 22 2008 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MADISON AND SOUTHEASTERN DALLAS COUNTIES IS CANCELLED... AT 439 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 4132 9375 4154 9378 4162 9356 4135 9338 TIME...MOT...LOC 0944Z 250DEG 27KT 4143 9363 $$ IAC153-181-221000- /O.CON.KDMX.SV.W.0013.000000T0000Z-080422T1000Z/ POLK IA-WARREN IA- 444 AM CDT TUE APR 22 2008 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR NORTHERN WARREN AND SOUTHWESTERN POLK COUNTIES... AT 439 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED NEAR SPRING HILL...OR 11 MILES SOUTH OF DES MOINES...MOVING EAST AT 31 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... 9 MILES SOUTH OF DES MOINES BY 450 AM CDT... 7 MILES NORTH OF ACKWORTH BY 455 AM CDT... CARLISLE BY 500 AM CDT... THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 68 AND 69. THIS INCLUDES INTERSTATE 235 BETWEEN MILE MARKERS 8 AND 12. REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 4132 9375 4154 9378 4162 9356 4135 9338 TIME...MOT...LOC 0944Z 250DEG 27KT 4143 9363 $$ RUSSELL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 1:12 AM CDT | Severe Thunderstorm Warning | DMX | Cass | 33 min |
| Apr 22, 1:31 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 29 min |
| Apr 22, 1:47 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 28 min |
| Apr 22, 3:36 AM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall, Story | 39 min |
| Apr 22, 3:39 AM CDT | Severe Thunderstorm Warning | DMX | Polk | 36 min |
| Apr 22, 4:50 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 28 min |
| Apr 22, 5:04 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Warren | 41 min |
| Apr 22, 5:25 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion | 35 min |
| Apr 22, 5:51 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe | 39 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2008Every severe thunderstorm warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.