Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 193, NWS Omaha, NE

August 1, 2012Cedar County, Thurston County, Wayne County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Aug 1, 2012, 10:54 PM CDT for Cedar County, Thurston County, Wayne County, Nebraska. It was in force for 21 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: Aug 1, 2012, 10:54 PM CDT (03:54 UTC)
Expired: Aug 1, 2012, 11:15 PM CDT
In force: 21 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cedar County, NE, Thurston County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 116 km from the middle of the area, began a volume at 03:55 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
Aug 1, 10:55 PM CDT	TSTM WND GST 58	Wayne, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 1 minutes after it went out.

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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.9 hours before the alert went out and 116 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: 7 J/kg
Mixed-layer CIN: -190 J/kg
Mixed-layer LCL: 2779 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

209 
WUUS53 KOAX 020354
SVROAX
NEC027-173-179-020430-
/O.NEW.KOAX.SV.W.0193.120802T0354Z-120802T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1054 PM CDT WED AUG 1 2012

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTHEASTERN CEDAR COUNTY IN NORTHEAST NEBRASKA...
  EXTREME NORTHWESTERN THURSTON COUNTY IN NORTHEAST NEBRASKA...
  NORTHEASTERN WAYNE COUNTY IN NORTHEAST NEBRASKA...

* UNTIL 1130 PM CDT

* AT 1050 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS
  INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
  WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CARROLL...
  OR 21 MILES NORTHEAST OF NORFOLK...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WAYNE AND CARROLL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
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 4226 9701 4226 9673 4228 9672 4228 9664
      4224 9662 4214 9714 4237 9728 4243 9702
TIME...MOT...LOC 0350Z 249DEG 27KT 4225 9712 
WIND...HAIL 60MPH <.75IN

$$

MILLER

3 follow-up statements

929 
WWUS53 KOAX 020400
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1100 PM CDT WED AUG 1 2012

NEC027-173-179-020430-
/O.CON.KOAX.SV.W.0193.000000T0000Z-120802T0430Z/
WAYNE NE-THURSTON NE-CEDAR NE-
1100 PM CDT WED AUG 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM
CDT FOR NORTHEASTERN WAYNE...EXTREME NORTHWESTERN THURSTON AND
EXTREME SOUTHEASTERN CEDAR COUNTIES...

AT 1055 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS
STORM WAS LOCATED NEAR WAYNE...OR 24 MILES NORTHEAST OF NORFOLK...
MOVING EAST AT 35 MPH. A WIND GUST OF 58 MPH WAS REPORTED AT THE 
WAYNE AIRPORT. 

LOCATIONS IMPACTED INCLUDE...
WAYNE AND CARROLL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE MAIN THREAT FROM THIS STORM IS DAMAGING WINDS. 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 4226 9701 4226 9673 4228 9672 4228 9664
      4224 9662 4214 9714 4237 9728 4243 9702
TIME...MOT...LOC 0355Z 254DEG 30KT 4225 9703 
WIND...HAIL 60MPH <.75IN

$$

MILLER

539 
WWUS53 KOAX 020407
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1107 PM CDT WED AUG 1 2012

NEC027-173-179-020430-
/O.CON.KOAX.SV.W.0193.000000T0000Z-120802T0430Z/
WAYNE NE-THURSTON NE-CEDAR NE-
1107 PM CDT WED AUG 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM
CDT FOR NORTHEASTERN WAYNE...EXTREME NORTHWESTERN THURSTON AND
EXTREME SOUTHEASTERN CEDAR COUNTIES...

AT 1105 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS
STORM WAS LOCATED NEAR WAKEFIELD...OR 25 MILES SOUTH OF PONCA...
MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
RURAL AREAS EAST OF WAYNE AND NORTHWEST OF THURSTON.

LAT...LON 4227 9702 4226 9701 4226 9673 4228 9672
      4228 9664 4224 9662 4214 9714 4237 9720
      4243 9702
TIME...MOT...LOC 0405Z 265DEG 33KT 4222 9689 
WIND...HAIL 60MPH <.75IN

$$

MILLER

304 
WWUS53 KOAX 020415
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1115 PM CDT WED AUG 1 2012

NEC179-027-173-020424-
/O.CAN.KOAX.SV.W.0193.000000T0000Z-120802T0430Z/
WAYNE NE-THURSTON NE-CEDAR NE-
1115 PM CDT WED AUG 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WAYNE...
EXTREME NORTHWESTERN THURSTON AND EXTREME SOUTHEASTERN CEDAR
COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A NEW SEVERE THUNDERSTORM WARNING IS IN EFFECT FARTHER TO THE EAST
WHICH COVERS MOST OF THURSTON COUNTY.

LAT...LON 4227 9702 4226 9701 4226 9673 4228 9672
      4228 9664 4224 9662 4214 9714 4237 9720
      4243 9702
TIME...MOT...LOC 0414Z 249DEG 27KT 4222 9689 

$$

MILLER

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 1, 10:04 PM CDT, 50 minutes earlier.

Area forecast discussion, Aug 1, 10:04 PM CDT, 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1004 PM CDT WED AUG 1 2012

.UPDATE...
DID AN EVENING UPDATE A LITTLE EARLIER TO ACCOUNT FOR HIGHER POPS
IN THE NORTHEAST AND CONTINUED SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS FARTHER SOUTHEAST OVERNIGHT.

&&

.DISCUSSION...
THE EVENING OAX SOUNDING WAS ON THE DRY SIDE WITH LESS THAN ONE
INCH PRECIP WATER...LBF HOWEVER HAD A MUCH MORE FAVORABLE SOUNDING
WITH AROUND 3200 J/KG FOR CAPE AND LITTLE CINH AND 1.34 FOR PRECIP
WATER. THE MOISTURE TRANSPORT VECTORS CONTINUE TO BRING THE
MOISTURE EASTWARD AND SOUTHWARD...SO SCATTERED POPS STILL SEEM ON
TRACK. GUSTY WINDS ARE POSSIBLE WITH DOWNDRAFT CAPE OF 1800 J/KG.
SO FAR HAVE HAD REPORTS OF 40 TO 50 MPH NEAR NELIGH.  THE NEW NAM
TRIES TO HOLD ON TO THE PRECIPITATION THURSDAY MORNING FARTHER
NORTH SO THIS WILL NEED TO BE ASSESSED.

&&

.PREV DISCUSSION... /ISSUED 715 PM CDT WED AUG 1 2012/

AVIATION...

AVIATION...
00Z TAFS FOR KOMA...KLNK...AND KOFK.
SHRA/TSRA AND WINDS ASSOCIATED WITH THIS PRECIPITATION WILL BE THE
PRIMARY CONCERN OVERNIGHT. TSRA HAVE BEEN MOVING THROUGH WESTERN
AND WEST CENTRAL NEBRASKA. STRONG WINDS OF 50 TO 60 MPH HAVE BEEN
OCCURRING WITH SOME OF THE STORMS AND SOME DIME-SIZED HAIL.
INCLUDED A FEW HOURS OF SHRA AT EACH SITE BETWEEN 06Z AND 11Z ALONG
WITH SOME GUSTY WINDS OF 25-35KTS. WILL NEED TO MONITOR
SPEED/MOVEMENT AND HOW THEY HOLD TOGETHER TO ADD IN TSRA AND
STRONGER WINDS AS NECESSARY. THERE HAS ALREADY BEEN AN INCREASE IN
SPEED OF THE LINE AND STORMS MAY MAKE IT TO KOFK EARLIER. VFR
CONDITIONS WILL PREVAIL HOWEVER SOME MVFR CIGS/VSBYS ARE POSSIBLE
STORMS.

PREV DISCUSSION... /ISSUED 501 PM CDT WED AUG 1 2012/

DISCUSSION...

IT APPEARS THAT A SHORT REPRIEVE FROM THE OPPRESSIVE DRY CONDITIONS
THAT HAVE PLAGUED US AS OF LATE IS ON THE HORIZON AS A COUPLE OF COLD
FRONTS APPROACH THE PLAINS. RADAR LOOP WAS SHOWING PCPN ACTIVITY OVER
WESTERN NEBRASKA AND PARTS OF SOUTH DAKOTA WHILE LATEST OBS WERE
DEPICTING A BNDRY EXTENDING ALONG THE ND/SD BORDER WITH CAA SLOWLY
SPREADING SWD OVER NRN SD. THE BIG QUESTION IS WILL THIS RESULT IN
PCPN OVER THE CWA LATER TONIGHT. IT SEEMS THE MODELS ARE TRYING TO
STALL THE FRONT IN THE VICINITY OF THE NRN CWA...BUT GOOD CHUNK OF
DPVA DOES CROSS THE CWA...AND WITH STOUT 315K UPGLIDE NOT
UNREASONABLE AT THIS POINT TO EXPECT SOME HIGH BASED ACTIVITY
DEVELOPING. LATEST HRRR SEEMS TO HAVE A DECENT HANDLE ON THINGS...
WHICH SUGGEST ACTIVITY COULD GET INTO EASTERN NEBRASKA BEFORE
MIDNIGHT.

CHANCES FOR ANOTHER ROUND PCPN ARE ON TAP HEADING INTO THE
WEEKEND. MODELS ARE IN VERY GOOD AGREEMENT THAT UPSTREAM SHORTWAVE
TROF OVER BRITISH COLUMBIA WILL SLIGHTLY BREAK DOWN THE CONUS
UPPER RIDGE AS IT DROPS INTO THE LOWER 48. THE THERMAL GRADIENT
WITH THE ATTENDANT COLD FRONT WILL BE MORE STOUT IN NATURE. WITH
DECENT ENVIRONMENTAL MOISTURE ON HAND... PRECIP WATER VALUES
AROUND 2"/KI OF 40...IS REASONABLE TO MAINTAIN POPS FRIDAY NIGHT.
POSSIBLE LINGERING ACTIVITY THEN SATURDAY MORNING OVER THE SRN
CWA. RELATIVELY COOLER AFTN HIGHS IN THE MID 80S THEN SUNDAY
AFTERNOON. HEADING INTO NEXT WEEK...THE SITUATION LOOKS RATHER
BLEAK WITH DRY CONDITIONS AND HIGH TEMPS PUSHING BACK TO THE
MID/UPPER 90S AS AN UPPER RIDGE RETURNS OVER THE CONUS.

DEE/BCM

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
IA...NONE.
&&

ZAPOTOCNY

Hazardous weather outlook, Aug 1, 5:27 PM CDT, 5 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
527 PM CDT WED AUG 1 2012

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-021230-
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-
PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-
STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-
SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE-
JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON-
527 PM CDT WED AUG 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST
NEBRASKA AND SOUTHEAST NEBRASKA.

.DAY ONE...TONIGHT AND THURSDAY

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE INTO
NORTHEAST NEBRASKA THIS EVENING AND SPREAD SOUTHEAST
OVERNIGHT...WITH A FEW LINGERING STORMS NEAR THE KANSAS BORDER
THURSDAY MORNING. SOME STORMS MAY PRODUCE DAMAGING WINDS AND
MARGINALLY SEVERE HAIL WITH THEM.

AN UPPER LEVEL WEATHER DISTURBANCE WITH AN ACCOMPANYING SURFACE
FRONT AND AVAILABLE MONSOONAL MOISTURE ARE RESPONSIBLE FOR THE
STORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH WEDNESDAY

SCATTERED THUNDERSTORMS ARE FORECAST FOR FRIDAY NIGHT AND
SATURDAY WITH ANOTHER CHANCE FOR STORMS MONDAY NIGHT. DAMAGING
WINDS AND LARGE HAIL MAY ACCOMPANY THE STORMS FRIDAY NIGHT AND
SATURDAY.

THE STORMS FRIDAY NIGHT AND SATURDAY ARE ASSOCIATED WITH A
STRONGER WEATHER DISTURBANCE AND FRONT THAT MOVES THROUGH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT...BUT WILL PROBABLY NOT
BE NEEDED THURSDAY MORNING.

ZAPOTOCNY

In the hours before

Special weather statement, Aug 1, 8:28 PM CDT, 2 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
828 PM CDT WED AUG 1 2012

NEZ011-020200-
KNOX NE-
828 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR KNOX COUNTY UNTIL 900 PM CDT...

AT 827 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM NIOBRARA TO 13 MILES NORTHEAST OF ONEILL...OR ALONG A LINE
EXTENDING FROM 28 MILES SOUTHEAST OF PICKSTOWN TO 23 MILES
SOUTHEAST OF SPENCER...AND MOVING EAST AT 35 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CREIGHTON...VERDIGRE...NIOBRARA...SANTEE...CENTER...VERDEL AND
BAZILE MILLS.

LAT...LON 4287 9825 4284 9819 4284 9815 4276 9804
      4277 9795 4279 9791 4286 9788 4287 9786
      4284 9771 4244 9783 4244 9830 4244 9830
      4288 9830
TIME...MOT...LOC 0127Z 268DEG 30KT 4282 9809 4259 9846

MILLER

Special weather statement, Aug 1, 8:41 PM CDT, 2 hours 13 minutes before

SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY
NEBRASKA 841 PM CDT WED AUG 1 2012

NEZ011-016-020230-
ANTELOPE NE-KNOX NE-
841 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR ANTELOPE AND SOUTHWESTERN KNOX
COUNTIES UNTIL 930 PM CDT...

AT 838 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING AN AREA OF STRONG THUNDERSTORMS NEAR INMAN...OR 8 MILES
SOUTHEAST OF ONEILL...MOVING EAST AT 35 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NELIGH...ORCHARD...CLEARWATER...OAKDALE...BRUNSWICK AND ROYAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR
ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL
WEATHER SERVICE.

&&

LAT...LON 4252 9831 4253 9797 4202 9795 4202 9830
TIME...MOT...LOC 0138Z 268DEG 26KT 4235 9857

MILLER

Special weather statement, Aug 1, 9:53 PM CDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
953 PM CDT WED AUG 1 2012

NEZ011-012-016>018-030>032-042-020330-
BOONE NE-CEDAR NE-STANTON NE-ANTELOPE NE-PIERCE NE-MADISON NE-
PLATTE NE-WAYNE NE-KNOX NE-
953 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BOONE...SOUTHWESTERN
CEDAR...WESTERN STANTON...SOUTHEASTERN ANTELOPE...PIERCE...MADISON...
NORTHWESTERN PLATTE...WESTERN WAYNE AND SOUTHEASTERN KNOX COUNTIES
UNTIL 1030 PM CDT...

AT 949 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM BLOOMFIELD TO ALBION...OR ALONG A LINE EXTENDING FROM 29
MILES SOUTHWEST OF YANKTON TO 36 MILES NORTHWEST OF COLUMBUS...AND
MOVING EAST AT 30 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORFOLK...MADISON...PIERCE...PLAINVIEW...BATTLE CREEK...RANDOLPH...
NEWMAN GROVE...OSMOND...WAUSA...COLERIDGE...HADAR...MEADOW GROVE...
HOSKINS...LINDSAY...CRESTON...TILDEN...HUMPHREY...MAGNET...TARNOV
AND FOSTER.

LAT...LON 4260 9776 4259 9718 4156 9734 4160 9796
TIME...MOT...LOC 0249Z 262DEG 26KT 4254 9772 4166 9800

MILLER

Special weather statement, Aug 1, 10:15 PM CDT, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1015 PM CDT WED AUG 1 2012

NEZ011-012-017-018-031>033-020345-
CEDAR NE-STANTON NE-PIERCE NE-MADISON NE-CUMING NE-WAYNE NE-KNOX NE-
1015 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CEDAR...STANTON...
EASTERN PIERCE...NORTHEASTERN MADISON...NORTHWESTERN CUMING...
WAYNE AND SOUTHEASTERN KNOX COUNTIES UNTIL 1045 PM CDT...

AT 1012 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM WAUSA TO 7 MILES SOUTH OF NORFOLK...OR ALONG A LINE EXTENDING
FROM 26 MILES SOUTH OF YANKTON TO 33 MILES NORTH OF COLUMBUS...AND
MOVING EAST AT 25 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORFOLK...WAYNE...HARTINGTON...STANTON...WISNER...RANDOLPH...WAUSA...
COLERIDGE...WINSIDE...PILGER...HADAR...HOSKINS...CARROLL...LAUREL...
BELDEN...MAGNET...MCLEAN AND SHOLES.

LAT...LON 4227 9702 4226 9692 4183 9686 4184 9746
      4257 9756 4268 9701
TIME...MOT...LOC 0312Z 261DEG 22KT 4251 9748 4192 9740

MILLER

Special weather statement, Aug 1, 10:40 PM CDT, 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1040 PM CDT WED AUG 1 2012

NEZ012-015-018-020415-
CEDAR NE-THURSTON NE-WAYNE NE-
1040 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CEDAR...WESTERN
THURSTON AND WAYNE COUNTIES UNTIL 1115 PM CDT...

AT 1036 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR CARROLL...OR 19 MILES
NORTHEAST OF NORFOLK...MOVING EAST AT 20 MPH.

WIND GUSTS UP TO AROUND 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WAYNE...WINSIDE...CARROLL AND SHOLES.

LAT...LON 4227 9702 4226 9680 4209 9671 4209 9721
      4238 9732 4242 9702
TIME...MOT...LOC 0336Z 259DEG 17KT 4226 9720

MILLER

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 1, 8:28 PM CDT	Special Weather Statement	OAX	Knox	32 min
Aug 1, 8:41 PM CDT	Special Weather Statement	OAX	Antelope	49 min
Aug 1, 9:14 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox	46 min
Aug 1, 9:53 PM CDT	Special Weather Statement	OAX	Madison, Pierce, Platte	37 min
Aug 1, 10:15 PM CDT	Special Weather Statement	OAX	Cedar, Stanton, Wayne	30 min
Aug 1, 10:40 PM CDT	Special Weather Statement	OAX	Wayne	35 min
Aug 1, 11:13 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Cuming, Thurston, Wayne	32 min
Aug 1, 11:23 PM CDT	Special Weather Statement	OAX	Colfax, Cuming, Platte, Stanton	37 min
Aug 1, 11:50 PM CDT	Special Weather Statement	OAX	Colfax	40 min
Aug 2, 2:10 AM CDT	Special Weather Statement	OAX	Gage, Jefferson	65 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.