Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Omaha, NE

April 27, 20144 counties in Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Apr 27, 2014, 6:56 PM CDT for 4 counties in Nebraska. It was in force for 49 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
Apr 27, 2014, 6:56 PM CDT (23:56 UTC)
Expired
Apr 27, 2014, 7:45 PM CDT
In force
49 min
Issued by
NWS Omaha, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Madison County, NE, Pierce County, NE, Stanton County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 119 km from the middle of the area, began a volume at 23:58 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, 11.9 hours before the alert went out and 118 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2014-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 406 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2014-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
406 J/kg
Mixed-layer CIN
-259 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.7

Open this sounding in Storm Lab

The text

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

306 
WUUS53 KOAX 272356
SVROAX
NEC119-139-167-179-280045-
/O.NEW.KOAX.SV.W.0021.140427T2356Z-140428T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
656 PM CDT SUN APR 27 2014

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN WAYNE COUNTY IN NORTHEAST NEBRASKA...
  EASTERN MADISON COUNTY IN NORTHEAST NEBRASKA...
  NORTHWESTERN STANTON COUNTY IN NORTHEAST NEBRASKA...
  SOUTHEASTERN PIERCE COUNTY IN NORTHEAST NEBRASKA...

* UNTIL 745 PM CDT

* AT 656 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTH OF
  MADISON...OR 7 MILES SOUTH OF NORFOLK...MOVING NORTH AT 40 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...
  NORFOLK...MADISON...PIERCE...BATTLE CREEK...HADAR...HOSKINS...
  SHOLES AND WILLOW CREEK STATE RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 67  AND 81 .
 HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 143  AND 177 .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4181 9736 4184 9763 4231 9756 4235 9728
      4225 9717
TIME...MOT...LOC 2356Z 194DEG 35KT 4193 9745 

HAIL...1.00IN
WIND...60MPH

$$

ZAPOTOCNY
5 follow-up statements
278 
WWUS53 KOAX 280010
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
710 PM CDT SUN APR 27 2014

NEC119-139-167-179-280045-
/O.CON.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
WAYNE NE-MADISON NE-STANTON NE-PIERCE NE-
710 PM CDT SUN APR 27 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR WESTERN WAYNE...EASTERN MADISON...NORTHWESTERN STANTON AND
SOUTHEASTERN PIERCE COUNTIES...

AT 709 PM CDT...A SEVERE LINE OF THUNDERSTORM WAS LOCATED NEAR 
BATTLE CREEK...OR 9 MILES SOUTHWEST OF NORFOLK...MOVING NORTH AT 25 
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...
NORFOLK...MADISON...PIERCE...BATTLE CREEK...HADAR...HOSKINS...SHOLES
AND WILLOW CREEK STATE RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 67  AND 81 .
 HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 143  AND 177 .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4181 9736 4184 9763 4231 9756 4235 9728
      4225 9717
TIME...MOT...LOC 0009Z 185DEG 23KT 4192 9751 

HAIL...1.00IN
WIND...60MPH

$$

ZAPOTOCNY
100 
WWUS53 KOAX 280019
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
719 PM CDT SUN APR 27 2014

NEC167-179-280028-
/O.CAN.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
WAYNE NE-STANTON NE-

719 PM CDT SUN APR 27 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WAYNE AND NORTHWESTERN
STANTON COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING MOVED OUT OF THE 
WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4231 9756 4233 9743 4230 9737 4182 9737
      4184 9763
TIME...MOT...LOC 0018Z 190DEG 32KT 4198 9753 

$$

NEC119-139-280045-
/O.CON.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
MADISON NE-PIERCE NE-
719 PM CDT SUN APR 27 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHEASTERN MADISON AND SOUTHEASTERN PIERCE COUNTIES...

AT 718 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BATTLE
CREEK...OR NEAR NORFOLK...MOVING NORTH AT 35 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...
NORFOLK...MADISON...PIERCE...BATTLE CREEK...HADAR AND WILLOW CREEK
STATE RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 67  AND 78 .
 HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 143  AND 177 .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4231 9756 4233 9743 4230 9737 4182 9737
      4184 9763
TIME...MOT...LOC 0018Z 190DEG 32KT 4198 9753 

HAIL...1.00IN
WIND...60MPH

$$

ZAPOTOCNY
461 
WWUS53 KOAX 280033
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
733 PM CDT SUN APR 27 2014

NEC119-139-280045-
/O.CON.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
MADISON NE-PIERCE NE-
733 PM CDT SUN APR 27 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHEASTERN MADISON AND SOUTHEASTERN PIERCE COUNTIES...

AT 733 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NORFOLK...
MOVING NORTH AT 30 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
NORFOLK...PIERCE...BATTLE CREEK...HADAR AND WILLOW CREEK STATE
RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 67  AND 74 .
 HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 149  AND 166 .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4221 9757 4224 9745 4215 9740 4188 9741
      4184 9763
TIME...MOT...LOC 0033Z 190DEG 42KT 4204 9750 

HAIL...1.00IN
WIND...<50MPH

$$

ZAPOTOCNY
695 
WWUS53 KOAX 280038
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
738 PM CDT SUN APR 27 2014

NEC119-139-280045-
/O.CON.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
MADISON NE-PIERCE NE-
738 PM CDT SUN APR 27 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHEASTERN MADISON AND SOUTHEASTERN PIERCE COUNTIES...

AT 738 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HADAR...OR
NEAR NORFOLK...MOVING NORTH AT 30 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
NORFOLK...PIERCE...BATTLE CREEK...HADAR AND WILLOW CREEK STATE
RECREATION AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 67  AND 74 .
 HIGHWAY 81 IN NEBRASKA BETWEEN MILEMARKERS 151  AND 166 .

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4221 9757 4224 9745 4215 9740 4194 9741
      4190 9762
TIME...MOT...LOC 0038Z 194DEG 35KT 4209 9748 

HAIL...1.00IN
WIND...<50MPH

$$

ZAPOTOCNY
153 
WWUS53 KOAX 280044
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
744 PM CDT SUN APR 27 2014

NEC119-139-280053-
/O.EXP.KOAX.SV.W.0021.000000T0000Z-140428T0045Z/
MADISON NE-PIERCE NE-
744 PM CDT SUN APR 27 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MADISON AND
SOUTHEASTERN PIERCE COUNTIES WILL EXPIRE AT 745 PM CDT...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED 
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER NICKEL 
SIZED HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4221 9757 4224 9745 4215 9740 4194 9741
      4190 9762
TIME...MOT...LOC 0040Z 194DEG 35KT 4209 9748 

$$

ZAPOTOCNY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 5:51 AM CDTSpecial Weather StatementOAXJohnson, Otoe39 min
Apr 27, 6:12 AM CDTSpecial Weather StatementOAXGage48 min
Apr 27, 6:26 AM CDTSpecial Weather StatementOAXGage49 min
Apr 27, 7:18 AM CDTSpecial Weather StatementOAXLancaster42 min
Apr 27, 9:29 AM CDTSpecial Weather StatementOAXJohnson, Nemaha, Pawnee, Richardson31 min
Apr 27, 9:57 AM CDTSpecial Weather StatementOAXNemaha48 min
Apr 27, 4:11 PM CDTSpecial Weather StatementOAXSaline19 min
Apr 27, 5:40 PM CDTSpecial Weather StatementOAXPlatte35 min
Apr 27, 6:20 PM CDTSpecial Weather StatementOAXMadison25 min
Apr 27, 6:31 PM CDTSevere Thunderstorm WarningOAXMadison, Platte29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014Every severe thunderstorm warning in 2014

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.