Alert archive / Nebraska / Special Weather Statements in 2015
Special Weather Statement, NWS Omaha, NE
NWS Omaha, NE issued this special weather statement at Aug 9, 2015, 4:52 PM CDT for Madison County, Nebraska. It was in force for 38 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
- Aug 9, 2015, 4:52 PM CDT (21:52 UTC)
- Expired
- Aug 9, 2015, 5:30 PM CDT
- In force
- 38 min
- Issued by
- NWS Omaha, NE
County Madison County, NE
The radar
The Omaha radar (KOAX), 151 km from the middle of the area, began a volume at 21:53 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 9.9 hours before the alert went out and 151 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
- 1483 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 791 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 3:36 PM CDT, 1 hour 16 minutes earlier.
Area forecast discussion, Aug 9, 3:36 PM CDT, 1 hour 16 minutes before
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</html>Hazardous weather outlook, Aug 9, 4:32 PM CDT, 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 432 PM CDT SUN AUG 9 2015 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-101145- 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- 432 PM CDT SUN AUG 9 2015 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 MONDAY SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE IN NORTHEAST NEBRASKA EARLY THIS EVENING. THEN MORE SEVERE THUNDERSTORMS WITH DAMAGING WINDS ARE POSSIBLE THROUGH ABOUT MIDNIGHT AS FAR SOUTHEAST AS INTERSTATE 80. SCATTERED THUNDERSTORMS AT LATE AFTERNOON ALONG A WEAK SURFACE BOUNDARY IN NORTHEAST NEBRASKA COULD PRODUCE LARGE HAIL AND DAMAGING WINDS. A BETTER CHANCE FOR SEVERE STORMS WILL COME FROM A COLD FRONT MOVING SOUTHEAST FROM SOUTH DAKOTA...SCHEDULED TO ARRIVE IN NORTHEAST NEBRASKA AT EARLY EVENING...THEN PROGRESS TOWARD INTERSTATE 80 AROUND MIDNIGHT. INSTABILITY AND SHEAR WILL BOTH BE CONDUCIVE FOR DAMAGING WINDS THROUGH THE EVENING BEFORE STORMS WEAKEN AFTER MIDNIGHT. SCATTERED THUNDERSTORMS WILL LIKELY LINGER OVER MUCH OF EASTERN NEBRASKA AND SOUTHWEST IOWA THROUGH THE NIGHT...ENDING FROM NORTHWEST TO SOUTHEAST AFTER MIDNIGHT. BY MONDAY MORNING...MOST OF THE ACTIVITY WILL HAVE MOVED EAST OF NEBRASKA AND SOUTHWEST IOWA. THERE IS A SMALL CHANCE NON SEVERE THUNDERSTORMS COULD POP UP MONDAY AFTERNOON IN SOUTHWEST IOWA. FLOODING WILL REMAIN POSSIBLE ALONG THE NISHNABOTNA RIVER NEAR HAMBURG AND THE WEST NISHNABOTNA NEAR RIVERTON AS WATER FROM SUNDAY NIGHT RAINFALL CONTINUES TO MOVE DOWN THOSE WATERWAYS. .DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING IN PART OF NORTHEAST AND EAST CENTRAL NEBRASKA...AS WELL AS WEST CENTRAL IOWA.
In the hours before
Local storm report, Aug 9, 12:44 PM CDT, 4 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1244 PM CDT SUN AUG 09 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM HEAVY RAIN 3 W OAKLAND 41.31N 95.45W
08/09/2015 M1.25 INCH POTTAWATTAMIE IA PUBLIC
0700 AM HEAVY RAIN OMAHA 41.26N 96.01W
08/09/2015 M1.16 INCH DOUGLAS NE ASOS
0700 AM HEAVY RAIN 1 N OMAHA 41.28N 96.01W
08/09/2015 M1.04 INCH DOUGLAS NE PUBLIC
REPORTED IN FLORANCE.
0700 AM HEAVY RAIN 2 SW SHUBERT 40.22N 95.71W
08/09/2015 M2.19 INCH RICHARDSON NE CO-OP OBSERVER
0700 AM HEAVY RAIN 1 SW PLATTSMOUTH 41.00N 95.90W
08/09/2015 M4.03 INCH CASS NE COCORAHS
0700 AM HEAVY RAIN 1 WSW PAPILLION 41.15N 96.06W
08/09/2015 M2.16 INCH SARPY NE COCORAHS
0700 AM HEAVY RAIN 1 SSE SIDNEY 40.73N 95.64W
08/09/2015 M5.24 INCH FREMONT IA CO-OP OBSERVER
0700 AM HEAVY RAIN 2 SSE ELKHORN 41.26N 96.22W
08/09/2015 M1.35 INCH DOUGLAS NE COCORAHS
0700 AM HEAVY RAIN 3 E CERESCO 41.06N 96.59W
08/09/2015 M1.31 INCH SAUNDERS NE COCORAHS
0700 AM HEAVY RAIN 4 NNE ELK CREEK 40.34N 96.10W
08/09/2015 M1.10 INCH JOHNSON NE COCORAHS
0700 AM HEAVY RAIN SHENANDOAH 40.76N 95.37W
08/09/2015 M3.27 INCH PAGE IA CO-OP OBSERVER
0700 AM HEAVY RAIN PAPILLION 41.16N 96.04W
08/09/2015 M1.18 INCH SARPY NE CO-OP OBSERVER
0700 AM HEAVY RAIN 4 WNW BELLEVUE 41.18N 95.99W
08/09/2015 M2.11 INCH SARPY NE COCORAHS
0700 AM HEAVY RAIN 3 W COLLEGE SPRINGS 40.62N 95.18W
08/09/2015 M2.95 INCH PAGE IA PUBLIC
0800 AM HEAVY RAIN RANDOLPH 40.87N 95.56W
08/09/2015 M6.85 INCH FREMONT IA CO-OP OBSERVER
0800 AM HEAVY RAIN 2 WSW RANDOLPH 40.86N 95.60W
08/09/2015 M9.30 INCH FREMONT IA PUBLIC
&&
LANDSVORKSpecial weather statement, Aug 9, 2:43 PM CDT, 2 hours 9 minutes before
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</html>Special weather statement, Aug 9, 3:31 PM CDT, 1 hour 21 minutes before
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</html>Special weather statement, Aug 9, 3:39 PM CDT, 1 hour 13 minutes before
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</html>Special weather statement, Aug 9, 4:17 PM CDT, 35 minutes before
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</html>Special weather statement, Aug 9, 4:52 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 452 PM CDT SUN AUG 9 2015 NEZ016-017-031-092230- ANTELOPE NE-PIERCE NE-MADISON NE- 452 PM CDT SUN AUG 9 2015 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ANTELOPE...NORTHERN MADISON AND SOUTHERN PIERCE COUNTIES UNTIL 530 PM CDT... AT 451 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER OAKDALE...OR 29 MILES WEST OF NORFOLK...MOVING EAST AT 30 MPH. HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... NORFOLK...PIERCE...NELIGH...BATTLE CREEK...OAKDALE...MEADOW GROVE... HADAR...TILDEN AND WILLOW CREEK STATE RECREATION AREA. THIS INCLUDES THE FOLLOWING HIGHWAYS... HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 39 AND 74. HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 160 AND 169. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHEASTERN NEBRASKA. LAT...LON 4218 9811 4222 9739 4189 9747 4204 9818 TIME...MOT...LOC 2151Z 278DEG 26KT 4209 9800 KERN
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:01 PM CDT | Special Weather Statement | OAX | Nemaha | 44 min |
| Aug 8, 8:38 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha | 52 min |
| Aug 8, 8:57 PM CDT | Tornado Warning | OAX | Nemaha, Richardson | 33 min |
| Aug 8, 9:02 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha | 28 min |
| Aug 8, 9:18 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Nemaha | 27 min |
| Aug 8, 9:25 PM CDT | Tornado Warning | OAX | Johnson, Nemaha | 35 min |
| Aug 8, 9:31 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 29 min |
| Aug 8, 10:00 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 45 min |
| Aug 8, 10:13 PM CDT | Areal Flood Advisory | OAX | Johnson, Nemaha, Pawnee, Richardson | 3 hr |
| Aug 8, 10:16 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 29 min |
| Aug 8, 10:27 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 18 min |
| Aug 8, 10:33 PM CDT | Tornado Warning | OAX | Richardson | 27 min |
| Aug 8, 10:45 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 30 min |
| Aug 8, 11:24 PM CDT | Special Weather Statement | OAX | Cass | 51 min |
| Aug 9, 12:04 AM CDT | Areal Flood Advisory | OAX | Douglas, Sarpy | 3 hr |
| Aug 9, 12:20 AM CDT | Special Weather Statement | OAX | Cass | 40 min |
| Aug 9, 12:58 AM CDT | Special Weather Statement | OAX | Cass | 47 min |
| Aug 9, 2:19 AM CDT | Areal Flood Advisory | OAX | Cass, Sarpy | 3 hr |
| Aug 9, 2:43 PM CDT | Special Weather Statement | OAX | Knox | 47 min |
| Aug 9, 2:50 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Knox | 40 min |
| Aug 9, 2:58 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 32 min |
| Aug 9, 3:31 PM CDT | Special Weather Statement | OAX | Antelope | 44 min |
| Aug 9, 3:39 PM CDT | Special Weather Statement | OAX | Knox | 36 min |
| Aug 9, 4:17 PM CDT | Special Weather Statement | OAX | Pierce | 43 min |
| Aug 9, 5:04 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Madison, Pierce | 26 min |
| Aug 9, 5:36 PM CDT | Special Weather Statement | OAX | Madison | 39 min |
| Aug 9, 5:59 PM CDT | Special Weather Statement | OAX | Boone | 46 min |
| Aug 9, 6:07 PM CDT | Areal Flood Advisory | OAX | Antelope, Madison | 3 hr |
| Aug 9, 6:12 PM CDT | Special Weather Statement | OAX | Madison | 48 min |
| Aug 9, 6:25 PM CDT | Special Weather Statement | OAX | Knox | 50 min |
| Aug 9, 6:30 PM CDT | Flash Flood Warning | OAX | Antelope, Madison | 3 hr |
| Aug 9, 6:41 PM CDT | Special Weather Statement | OAX | Boone | 49 min |
| Aug 8, 8:29 PM CDT | Special Weather Statement | OAX | Fremont | 46 min |
| Aug 8, 9:21 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 39 min |
| Aug 8, 9:45 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 33 min |
| Aug 8, 9:50 PM CDT | Special Weather Statement | OAX | Mills | 40 min |
| Aug 9, 12:10 AM CDT | Special Weather Statement | OAX | Fremont, Page | 50 min |
| Aug 9, 12:32 AM CDT | Areal Flood Advisory | OAX | Fremont | 3 hr |
| Aug 9, 1:21 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 24 min |
| Aug 9, 1:40 AM CDT | Special Weather Statement | OAX | Fremont | 50 min |
| Aug 9, 1:42 AM CDT | Special Weather Statement | OAX | Mills | 48 min |
| Aug 9, 1:45 AM CDT | Special Weather Statement | OAX | Page | 30 min |
| Aug 9, 3:42 AM CDT | Areal Flood Advisory | OAX | Fremont, Page | 3 hr |
| Aug 9, 10:08 AM CDT | River Flood Warning | OAX | Fremont | 7 days |
| Aug 9, 10:59 AM CDT | River Flood Warning | OAX | Fremont | 36 hr |
Nearby
Special Weather Statements in Nebraska, 2015Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.