Alert archive / Iowa / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 13, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 3, 2015, 6:19 PM CDT for Emmet County, Kossuth County, Palo Alto County, Iowa. It was in force for 41 min. 2 reports 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
- May 3, 2015, 6:19 PM CDT (23:19 UTC)
- Expired
- May 3, 2015, 7:00 PM CDT
- In force
- 41 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Emmet County, IA, Kossuth County, IA, Palo Alto County, IA
The radar
The Des Moines radar (KDMX), 171 km from the middle of the area, began a volume at 23:20 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 |
|---|---|---|---|
| May 3, 6:45 PM CDT | TSTM WND GST 59 | 2 Wnw Algona, IA | |
| May 3, 6:45 PM CDT | TSTM WND GST 59 | Algona Airport, IA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 191 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
- 1098 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
211
WUUS53 KDMX 032319
SVRDMX
IAC063-109-147-040000-
/O.NEW.KDMX.SV.W.0013.150503T2319Z-150504T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
619 PM CDT SUN MAY 3 2015
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN PALO ALTO COUNTY IN NORTHWESTERN IOWA...
SOUTHEASTERN EMMET COUNTY IN NORTHWESTERN IOWA...
SOUTHERN KOSSUTH COUNTY IN NORTH CENTRAL IOWA...
* UNTIL 700 PM CDT
* AT 619 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES
NORTHEAST OF FIVE ISLAND LAKE...OR 14 MILES NORTHEAST OF
EMMETSBURG...MOVING SOUTHEAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
ALGONA...SMITH POOL...BANCROFT...BURT...WHITTEMORE...TITONKA...
RINGSTED...FENTON...LONE ROCK...ALGONA MUNICIPAL AIRPORT AND
STINSON PRAIRIE STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4325 9403 4297 9438 4324 9463 4335 9444
TIME...MOT...LOC 2319Z 312DEG 15KT 4324 9445
HAIL...1.00IN
WIND...60MPH
$$
DONAVON1 follow-up statement
621
WWUS53 KDMX 032345
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
645 PM CDT SUN MAY 3 2015
IAC063-109-147-040000-
/O.CON.KDMX.SV.W.0013.000000T0000Z-150504T0000Z/
PALO ALTO IA-EMMET IA-KOSSUTH IA-
645 PM CDT SUN MAY 3 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHEASTERN PALO ALTO...SOUTHEASTERN EMMET AND SOUTHERN KOSSUTH
COUNTIES...
AT 645 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTHWEST
OF ALGONA...MOVING SOUTHEAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
ALGONA...SMITH POOL...BANCROFT...BURT...WHITTEMORE...TITONKA...
FENTON...LONE ROCK...ALGONA MUNICIPAL AIRPORT AND STINSON PRAIRIE
STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4325 9403 4297 9438 4317 9457 4333 9438
TIME...MOT...LOC 2345Z 312DEG 15KT 4317 9432
HAIL...1.00IN
WIND...60MPH
$$
DONAVONThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 1:33 AM CDT | Special Weather Statement | DMX | Audubon, Cass | 42 min |
| May 3, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 49 min |
| May 3, 5:42 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth | 48 min |
| May 3, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 47 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2015Every severe thunderstorm warning in 2015
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.