Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 252, NWS Omaha, NE

June 19, 2008Cedar County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 19, 2008, 5:37 PM CDT for Cedar County, Nebraska. It was in force for 38 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: Jun 19, 2008, 5:37 PM CDT (22:37 UTC)
Expired: Jun 19, 2008, 6:15 PM CDT
In force: 38 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon

County Cedar County, NE

The radar

The Sioux Falls radar (KFSD), 134 km from the middle of the area, began a volume at 22:37 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
Jun 19, 5:40 PM CDT	HAIL 0.75	1 S Hartington, NE

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

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.6 hours before the alert went out and 146 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: 1349 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1135 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KOAX 192237
SVROAX
NEC027-192315-
/O.NEW.KOAX.SV.W.0252.080619T2237Z-080619T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
537 PM CDT THU JUN 19 2008

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL AND SOUTHERN CEDAR COUNTY IN NORTHEAST NEBRASKA...

* UNTIL 615 PM CDT.

* AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS AROUND 60 MPH.  THIS STORM WAS LOCATED NEAR
  HARTINGTON...OR 23 MILES SOUTHWEST OF VERMILLION...AND MOVING SOUTH
  AT 13 MPH.

* LOCATIONS IMPACTED INCLUDE...
  COLERIDGE AND RANDOLPH...

THE WARNED AREA INCLUDES HIGHWAY 20 IN NEBRASKA BETWEEN MILE MARKERS
378 AND 388.

HAIL THE SIZE OF QUARTERS OR LARGER IS EXPECTED WITH THIS STORM. GO
TO A SAFE PLACE INSIDE YOUR HOME OR BUSINESS. STAY AWAY FROM WINDOWS
AND GLASS DOORS.

LAT...LON 4235 9708 4235 9736 4241 9737 4244 9737
      4262 9740 4264 9716
TIME...MOT...LOC 2237Z 354DEG 11KT 4254 9727

$$

DEWALD

2 follow-up statements

000 
WWUS53 KOAX 192300
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
600 PM CDT THU JUN 19 2008

NEC027-192315-
/O.CON.KOAX.SV.W.0252.000000T0000Z-080619T2315Z/
CEDAR NE-
600 PM CDT THU JUN 19 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHERN CEDAR COUNTY...

AT 559 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING 3/4 INCH HAIL...
AND DAMAGING WINDS AROUND 60 MPH.  THIS STORM WAS LOCATED NEAR
COLERIDGE...OR 27 MILES SOUTH OF YANKTON...MOVING SOUTH AT 13 MPH.

LOCATIONS IMPACTED INCLUDE...RANDOLPH AND BELDEN.

THE WARNED AREA INCLUDES HIGHWAY 20 IN NEBRASKA BETWEEN MILE MARKERS
378 AND 388.

THIS STORM MAY PRODUCE HAIL 3/4 INCH IN DIAMETER OR LARGER. SEEK A
STURDY SHELTER IMMEDIATELY. STAY AWAY FROM WINDOWS AND GLASS DOORS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.

LAT...LON 4235 9708 4235 9736 4241 9737 4244 9737
      4262 9740 4264 9716
TIME...MOT...LOC 2300Z 354DEG 11KT 4250 9731

$$

DEWALD

000 
WWUS53 KOAX 192311
SVSOAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
611 PM CDT THU JUN 19 2008

NEC027-192321-
/O.EXP.KOAX.SV.W.0252.000000T0000Z-080619T2315Z/
CEDAR NE-
611 PM CDT THU JUN 19 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CEDAR COUNTY WILL
EXPIRE AT 615 PM CDT...

THE WARNED AREA INCLUDES HIGHWAY 20 IN NEBRASKA BETWEEN MILE MARKERS
378 AND 388.

THE WARNING WHICH WAS IN EFFECT WILL BE ALLOWED TO EXPIRE AS 
SCHEDULED. STORMS HAVE WEAKENED AND ARE NO LONGER SEVERE. 
HOWEVER...HEAVY RAIN...SMALL HAIL AND GUSTY WINDS WILL STILL BE 
POSSIBLE THROUGH AT LEAST 630 PM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
THURSDAY EVENING FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.

LAT...LON 4235 9708 4235 9736 4241 9737 4244 9737
      4262 9740 4264 9716
TIME...MOT...LOC 2311Z 354DEG 11KT 4247 9731

$$

DEWALD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:18 PM CDT	Severe Thunderstorm Warning	OAX	Washington	42 min
Jun 18, 9:14 PM CDT	Severe Thunderstorm Warning	OAX	Burt, Cuming	31 min
Jun 19, 1:03 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	27 min
Jun 19, 1:12 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton, Wayne	33 min
Jun 19, 1:38 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Stanton, Thurston, Wayne	52 min
Jun 19, 1:53 PM CDT	Severe Thunderstorm Warning	OAX	Gage	52 min
Jun 19, 2:21 PM CDT	Severe Thunderstorm Warning	OAX	Nemaha, Richardson	54 min
Jun 19, 2:33 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Johnson, Pawnee	32 min
Jun 19, 2:45 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Sarpy, Saunders	45 min
Jun 19, 2:45 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Stanton	45 min
Jun 19, 2:56 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Boone, Madison	49 min
Jun 19, 3:33 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Sarpy, Saunders	42 min
Jun 19, 3:41 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Boone	49 min
Jun 19, 3:55 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Pierce, Stanton	50 min
Jun 19, 4:08 PM CDT	Flash Flood Warning	OAX	Madison, Pierce, Stanton	5 hr
Jun 19, 4:30 PM CDT	Severe Thunderstorm Warning	OAX	Colfax, Platte	60 min
Jun 19, 4:35 PM CDT	Severe Thunderstorm Warning	OAX	Boone	40 min
Jun 19, 4:50 PM CDT	Severe Thunderstorm Warning	OAX	Colfax	55 min
Jun 19, 5:30 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Saunders	37 min
Jun 19, 5:45 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox, Pierce	45 min
Jun 19, 5:57 PM CDT	Severe Thunderstorm Warning	OAX	Saunders	48 min
Jun 19, 6:42 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Saunders	33 min
Jun 19, 6:56 PM CDT	Severe Thunderstorm Warning	OAX	Douglas, Sarpy	33 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008 Every severe thunderstorm warning in 2008

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.