Alert archive / Iowa / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 48, NWS Sioux Falls, SD

June 1, 2010Ida County, Woodbury County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 1, 2010, 3:37 PM CDT for Ida County, Woodbury County, Iowa. It was in force for 23 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: Jun 1, 2010, 3:37 PM CDT (20:37 UTC)
Expired: Jun 1, 2010, 4:00 PM CDT
In force: 23 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Ida County, IA, Woodbury County, IA

The radar

The Omaha radar (KOAX), 141 km from the middle of the area, began a volume at 20:40 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 1, 1:53 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 8.6 hours before the alert went out and 141 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1529 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

477 
WUUS53 KFSD 012037
SVRFSD
IAC093-193-012100-
/O.NEW.KFSD.SV.W.0048.100601T2037Z-100601T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
337 PM CDT TUE JUN 1 2010

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL IDA COUNTY IN NORTHWEST IOWA...
  EAST CENTRAL WOODBURY COUNTY IN NORTHWEST IOWA...

* UNTIL 400 PM CDT

* AT 337 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR ANTHON...OR 15 MILES WEST OF IDA GROVE...AND MOVING
  EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BATTLE CREEK AROUND 345 PM CDT...
  IDA GROVE AND HOLSTEIN AROUND 350 PM CDT...
  GALVA AND ARTHUR AROUND 355 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR NORTHWEST IOWA AND NORTHEAST NEBRASKA.

LAT...LON 4230 9583 4250 9584 4252 9539 4251 9538
      4249 9538 4248 9535 4232 9533
TIME...MOT...LOC 2037Z 260DEG 42KT 4239 9571
WIND...HAIL 60MPH 1.00IN

$$

CJ

2 follow-up statements

889 
WWUS53 KFSD 012045
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
345 PM CDT TUE JUN 1 2010

IAC093-193-012100-
/O.CON.KFSD.SV.W.0048.000000T0000Z-100601T2100Z/
WOODBURY IA-IDA IA-
345 PM CDT TUE JUN 1 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL IDA
AND EAST CENTRAL WOODBURY COUNTIES UNTIL 400 PM CDT...

AT 345 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
CUSHING...OR 13 MILES WEST OF IDA GROVE...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BATTLE CREEK AROUND 350 PM CDT...
  HOLSTEIN...IDA GROVE AND GALVA AROUND 400 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4230 9583 4250 9584 4252 9539 4251 9538
      4249 9538 4248 9535 4232 9533
TIME...MOT...LOC 2045Z 264DEG 28KT 4241 9569
WIND...HAIL 60MPH 1.25IN

$$

CJ

348 
WWUS53 KFSD 012057
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
357 PM CDT TUE JUN 1 2010

IAC093-193-012108-
/O.EXP.KFSD.SV.W.0048.000000T0000Z-100601T2100Z/
WOODBURY IA-IDA IA-
357 PM CDT TUE JUN 1 2010

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL IDA AND EAST CENTRAL
WOODBURY COUNTIES WILL EXPIRE AT 400 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.

LAT...LON 4230 9583 4250 9584 4252 9539 4251 9538
      4249 9538 4248 9535 4232 9533
TIME...MOT...LOC 2058Z 264DEG 28KT 4242 9555

$$

CJ

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 5:18 AM CDT, 10 hours 19 minutes earlier.

Area forecast discussion, Jun 1, 5:18 AM CDT, 10 hours 19 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
518 AM CDT TUE JUN 1 2010

.DISCUSSION...
PATTERN LOOKS TO REMAIN ACTIVE THROUGH THE NEXT SEVERAL DAYS WITH
CONFLUENT ZONAL FLOW FEATURING NUMEROUS WAVES...DIFFICULT TO TIME
AND DIFFICULT TO TRACK...MAKING FOR A CHALLENGING FCST. STRONGEST
TROUGHING EARLY THIS MORNING THRU CANADA WITH SECONDARY MAIN TROUGH
BACK THRU NV...WITH A COUPLE EMBEDDED SMALLER WAVES IN WSW FLOW INTO
NRN PLAINS. ONE SUCH WAVE LIFTING FROM WY/CO INTO WRN SD...AND
ANOTHER BACK IN UT. LLJ INCREASING THRU CNTRL PLAINS 88D VWP AND HBR
PROFILER...BUT LACK OF PLAINS PROFILERS ACRS NRN NEBRASKA DOES NOT
MAKE IT ANY EASIER TO DIAGNOSE LLJ.  LOW LVL FRONTAL BNDRY FM SERN
ND TO NWRN SD...WITH SECONDARY WMFNT WELL TO S IN NRN KS. MAIN LO
LVL MOISTURE TRANSPORT BACK THRU CNTRL NEBRASKA WITH RETREATING SFC
RIDGE HOLDING DRIER AIR IN THRU ERN CWA.

NOTING DEVELOPING ACC FIELD OVR WRN NEBRASKA/SRN SD...EXTENDING TO
STRONGER CONVECTION IN NWRN KS/SWRN NEBRASKA...AS EFFECTS OF LEADING
SHORTWAVE MOVE INTO PLAINS AND INTERACT WITH LLJ. EML PUSHING INTO
PLAINS ALSO CONTRIBUTING TO INCREASING POTENTIAL INSTABILITY AXIS
THRU CNTRL NEBRASKA/SD THIS MORNING. OVERALL...LIKE IDEA SHOWN IN
THE HRRR AND IN SOME FORM THE NAM/GFS WITH INCREASING PCPN AREA
EXPECTED TO EVOLVE OVER NEXT 2-3H ACRS WRN/SRN CWA IN WAA WING...
SPREADING AND BECOMING MORE WIDESPREAD TO THE NORTHEAST THRU MID TO
LATE MORNING. MOST SOUNDINGS INDICATE LITTLE RESISTANCE TO THIS
ELEVATED CONVECTION /PRIOR TO INITIATION/ AND THUS CONCERN THAT WL
JUST GO WITHOUT CESSATION...WHICH WOULD NOT ONLY LIMIT SVR THREAT
TO THE N AND W...BUT EVEN MORE TO THE S THRU THE AFTN. HOWEVER...
0-6KM BULK SHEAR INCREASES TO 40 TO 50 KTS BY AFTN ACRS THE AREA...
USING SOME CREATIVE NON CONVECTIVE PROFILES. THIS MORE THAN
SUFFICIENT TO ORGANIZE STORMS WHICH DEVELOP EITHER ON EDGE OF THE
ELEVATED CONVECTIVE AREAS BY EARLY AFTN AS DESTABILIZATION WITH
L80S/L60S T/TD COMBO...OR ON MAIN FRONTAL BNDRY WITH ELEVATED
INSTABILITY. THREAT FOR SVR CERTAINLY FAVORS SERN HALF OF AREA...
AND CHOSE EXEPECT GRADIENT IN SHEAR/INSTABILITY IN DEEPER FRONTAL
CONVERGENCE AREA FOR DEVELOPMENT.  WOULD EXPECT BULK OF THREAT WOULD
BE HAIL TO WIND TRANSITION AS STORMS GROW UPSCALE INTO MCS...BUT MORE
DISCRETE SUPERCELLS LATER AFTN MAY BRING A NOMINAL TOR THREAT WITH
LOWEST ATM SHEAR FROM NON-CONVECTED AREAS JUST ON THE SHY SIDE OF
FAVORABLE.  CONCERN FOR HEAVY RAINFALL IN PLACE...BUT WITH FORWARD
PROPOGATION EXPECTED TO GENERALLY REIGN...EXPECT ANY PROBLEMS WOULD
BE MORE PROPERLY HANDLED ON THE STORM SCALE...HENCE NOT A WIDESPREAD
THREAT FOR FLASH FLOODING.

TEMPERATURES YET ANOTHER CHALLENGE...AND IF PCPN FAILS TO
MATERIALIZE IN TIMELY MANNER DURING THE MORNING...A WARM AIRMASS
COULD EASILY YIELD MUCH WARMER MAXES BEFORE FROPA SINKS SWRD THRU
THE AFTN. SOMEWHERE FROM LOWER 70S IN EARLIER RAIN AREAS THRU ERN SD
TO MID 80S IN SRN PORTIONS OF NW IA AHEAD OF BNDRY/PCPN.

PUSHED OUT PCPN JUST A BIT FASTER TONIGHT AS JET ENTRANCE REGION
AIDS IN BRINGING DRIER NLY FLOW IN AT LOW LVLS...AND DRIVES THE
LOWER LVL FRONTAL BNDRY INTO KS/MO BY EARLY WED. HOWEVER...WL
CONTINUE TO FIND A FAIRLY STRONG WAVE ALFT RIDING ALONG LINGERING
MID LVL BNDRY INTO WED MORNING...SO DIFFICULT TO FULLY REMOVE POPS
THRU SERN 2/3 OR SO OF AREA. YET ANOTHER IMPULSE LOOKS TO COME OUT
OF THE WRN HIGH PLAINS BY LTR WED...BUT AS MAIN BAROCLINICITY ALSO
WORKS SWRD...KEPT ONLY SOME CHC LVL POPS ALG FAR S/SE CWA. CLOUDS
AND COOLER TMPS SHUD KNOCK QUITE A BIT OFF SRN HIGHS WED...WITH ONLY
UPR 60S TO LOWER 70S MOST AREAS.

SFC RIDGE BRINGS PARTIAL CLEARING WED NIGHT INTO THU AS SETTLE SE
ACRS THE AREA. CONTINUE TO FAVOR A BIT SLOWER PROGRESSION PER
ECMWF...AS SEEMS CONVECTION HAVING ITS WAY WITH ESPLY GFS.

NEXT BETTER THREAT IN THE SHORT RANGE FOR PCPN LOOKS TO START UP BY
LATER THU AFTN ALG WRN FLANK...AND SPREADS EWRD THU NIGHT AND
FRIDAY. WAA PCPN EXPECTED TO START UP LTR THU CNTRL SD...AND PUSH
EWRD THU NIGHT BECOMING MORE WIDESPREAD. ENOUGH CONFIDENCE IN
DYNAMIC STRENGTH AND INSTABILITY TO PUSH MENTION TO SCT.

DID VERY LITTLE TO FCST AGAIN BEYOND FRI...AS INCREASING UNCERTAINTY
IN FLOW MAKES FOR POTENTIALLY UNNECESSARY FLIP FLOPS.  DID LOOK LIKE
COULD BE A DECENTLY MIXY DAY BY SATURDAY...FEATURING A BIT MORE WLY
COMPONENT THAN EARLIER FCST...LEADING TO A SMALL RAISING OF TMPS
THRU WRN/SRN CWA MORE LKLY TO BE OUT OF PCPN/CLDS EARLIER. /CHAPMAN

&&

.AVIATION...
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL BECOME POSSIBLE
EARLY THIS MORNING OVER CENTRAL SD...WITH THIS ACTIVITY SPREADING
TOWARDS I29 AND SW MN BY LATE MORNING. MAINLY VFR CEILINGS AND
VISIBILITIES ARE EXPECTED DURING THIS TIME. BY AFTERNOON...STRONGER
THUNDERSTORMS WILL BECOME POSSIBLE WITH A FEW MVFR CEILINGS AND
VISIBILITIES. SOME OF THESE THUNDERSTORMS MAY ALSO PRODUCE HEAVY
RAIN AND SEVERE WEATHER. THE MORE ORGANIZED THUNDERSTORM THREAT
SHOULD BE AROUND THE FSD AREA FROM ABOUT 19Z THROUGH 0Z WHILE SUX
SEES THE BETTER CHANCE FROM ABOUT 23Z TO 5Z. /08

&&

.FSD WATCHES/WARNINGS/ADVISORIES...

SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&

Hazardous weather outlook, Jun 1, 11:41 AM CDT, 3 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1141 AM CDT TUE JUN 01 2010

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-021200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
1141 AM CDT TUE JUN 01 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
ELEVATED THUNDERSTORMS WILL CONTINUE FROM SOUTHEAST SOUTH
DAKOTA...INTO SOUTHWEST MINNESOTA AND EXTREME NORTHWEST IOWA INTO
THE EARLY AFTERNOON. ISOLATED SEVERE STORMS PRODUCING HAIL UP TO
QUARTER SIZE AND LOCALLY HEAVY RAIN WILL BE POSSIBLE WITH THESE
STORMS... EXTENDING FROM LAKE ANDES TO SIOUX FALLS SOUTH
DAKOTA...AND INTO SOUTHWEST MINNESOTA.

ADDITIONAL THUNDERSTORM DEVELOPMENT WILL BECOME MORE LIKELY AFTER
2 PM FARTHER TO THE SOUTHEAST...ESPECIALLY ALONG AND SOUTHEAST OF
A LINE FROM YANKTON SOUTH DAKOTA...TO ROCK VALLEY AND SPIRIT LAKE
IOWA DURING THE AFTERNOON HOURS. STORMS IN THESE AREAS WILL BE
CAPABLE OF PRODUCING LARGE HAIL UP TO 2 INCHES IN DIAMETER...AND
DAMAGING WINDS WILL BE AN INCREASING THREAT AS STORMS SPREAD TO
THE SOUTHEAST. ISOLATED TORNADOES WILL ALSO BE
POSSIBLE...ESPECIALLY NEAR ANY LOW LEVEL BOUNDARIES RESULTING
FROM THE MORNING CONVECTION TO THE NORTH.  THE SEVERE THREAT
SHOULD END BY 9 PM AS THE COLD POOL ASSOCIATED WITH THE STORMS
PUSHES FORWARD AWAY FROM THE FORECAST AREA.

FLOODING...
AREAS OF HEAVY RAIN CAN BE EXPECTED FROM THUNDERSTORMS MOVING
ACROSS THE AREA THIS AFTERNOON AND EARLY EVENING. LOCALIZED FLASH
FLOODING WILL BE POSSIBLE...MAINLY ALONG AND SOUTHEAST OF A LINE
FROM WAGNER SOUTH DAKOTA...TO SIOUX FALLS TO WINDOM MINNESOTA.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

ISOLATED THUNDERSTORMS ARE POSSIBLE ON WEDNESDAY INTO EARLY
WEDNESDAY MORNING...GENERALLY SOUTH OF A LINE FROM CHAMBERLAIN TO
SPENCER IOWA. THESE STORMS WILL NOT BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE LIKELY BETWEEN 2 PM AND 9 PM CDT...
ESPECIALLY ALONG AND SOUTHEAST OF A LINE FROM YANKTON SOUTH
DAKOTA TO SPIRIT LAKE IOWA.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

In the hours before

Local storm report, Jun 1, 1:51 PM CDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
151 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0145 PM     HAIL             HARTLEY                 43.18N 95.48W
06/01/2010  E1.75 INCH       O'BRIEN            IA   BROADCAST MEDIA

0148 PM     HAIL             MONETA                  43.13N 95.39W
06/01/2010  E1.75 INCH       CLAY               IA   AMATEUR RADIO

&&

MDB

Local storm report, Jun 1, 1:53 PM CDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
153 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0122 PM     TORNADO          4 WNW SANBORN           43.20N 95.73W
06/01/2010                   O'BRIEN            IA   TRAINED SPOTTER

            BRIEF TOUCHDOWN

&&

RRYRHOLM

Local storm report, Jun 1, 1:55 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
155 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0151 PM     HAIL             2 ENE HARTLEY           43.19N 95.44W
06/01/2010  E2.50 INCH       O'BRIEN            IA   TRAINED SPOTTER

            DAMAGE TO TREES AND CARS

&&

RRYRHOLM

Local storm report, Jun 1, 1:59 PM CDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
159 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     HAIL             3 WNW EVERLY            43.18N 95.38W
06/01/2010  M1.75 INCH       CLAY               IA   CO-OP OBSERVER

&&

RRYRHOLM

Local storm report, Jun 1, 2:53 PM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
253 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0210 PM     HAIL             SPENCER                 43.15N 95.15W
06/01/2010  E1.00 INCH       CLAY               IA   BROADCAST MEDIA

&&

RRYRHOLM

Local storm report, Jun 1, 2:59 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
259 PM CDT TUE JUN 01 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0251 PM     HAIL             8 SSE REMSEN            42.71N 95.92W
06/01/2010  E1.75 INCH       PLYMOUTH           IA   TRAINED SPOTTER

&&

RRYRHOLM

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 1:07 PM CDT	Tornado Warning	FSD	O'Brien, Sioux	23 min
Jun 1, 1:28 PM CDT	Tornado Warning	FSD	Clay, O'Brien	32 min
Jun 1, 1:59 PM CDT	Tornado Warning	FSD	Clay	31 min
Jun 1, 2:47 PM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Plymouth	28 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2010 Every severe thunderstorm warning in 2010

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.