Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS Hastings, NE

April 14, 2017Harlan County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 14, 2017, 4:03 AM CDT for Harlan County, Nebraska. It was in force for 42 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 14, 2017, 4:03 AM CDT (09:03 UTC)
Expired: Apr 14, 2017, 4:45 AM CDT
In force: 42 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Harlan County, NE

The radar

The Grand Island radar (KUEX), 80 km from the middle of the area, began a volume at 09:05 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.1 hours before the alert went out and 155 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2691 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

784 
WUUS53 KGID 140903
SVRGID
NEC083-140945-
/O.NEW.KGID.SV.W.0021.170414T0903Z-170414T0945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
403 AM CDT FRI APR 14 2017

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Southern Harlan County in south central Nebraska...

* Until 445 AM CDT

* At 402 AM CDT, a severe thunderstorm was located near Woodruff, or
  22 miles north of Phillipsburg, moving northeast at 25 mph.

  HAZARD...Quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Damage to vehicles is expected. 

* Locations impacted include...
  Alma, Orleans, Republican City, Huntley and Harlan County Dam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near Harlan County Dam, get away from the water and move 
indoors or inside a vehicle. Remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4025 9925 4015 9918 4007 9918 4000 9940
      4000 9956 4006 9959
TIME...MOT...LOC 0902Z 241DEG 21KT 4005 9947 

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

Mangels

2 follow-up statements

681 
WWUS53 KGID 140920
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
420 AM CDT FRI APR 14 2017

NEC083-140945-
/O.CON.KGID.SV.W.0021.000000T0000Z-170414T0945Z/
Harlan NE-
420 AM CDT FRI APR 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CDT
FOR SOUTHEASTERN HARLAN COUNTY...

At 419 AM CDT, a severe thunderstorm was located over Alma, or 23
miles north of Phillipsburg, moving northeast at 20 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Alma, Republican City, Huntley and Harlan County Dam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near Harlan County Dam, get away from the water and move 
indoors or inside a vehicle. remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4025 9925 4015 9918 4007 9918 4000 9940
      4002 9949 4005 9951
TIME...MOT...LOC 0919Z 241DEG 19KT 4009 9937 

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

Mangels

170 
WWUS53 KGID 140935
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
435 AM CDT FRI APR 14 2017

NEC083-140945-
/O.CON.KGID.SV.W.0021.000000T0000Z-170414T0945Z/
Harlan NE-
435 AM CDT FRI APR 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 AM CDT
FOR SOUTHEASTERN HARLAN COUNTY...

At 435 AM CDT, a severe thunderstorm was located over Alma, or 23
miles south of Holdrege, moving northeast at 20 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

Locations impacted include...
Alma, Republican City, Huntley and Harlan County Dam. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near Harlan County Dam, get away from the water and move 
indoors or inside a vehicle. remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4025 9925 4015 9918 4007 9918 4001 9938
      4008 9939 4012 9939
TIME...MOT...LOC 0935Z 244DEG 15KT 4011 9931 

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

Mangels

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 3:19 AM CDT	Special Weather Statement	GID	Furnas	41 min
Apr 14, 3:31 AM CDT	Special Weather Statement	GID	Harlan	44 min
Apr 14, 4:41 AM CDT	Severe Thunderstorm Warning	GID	Franklin, Harlan	49 min
Apr 14, 5:11 AM CDT	Special Weather Statement	GID	Franklin	49 min
Apr 14, 5:15 AM CDT	Special Weather Statement	GID	Webster	45 min
Apr 14, 7:45 AM CDT	Special Weather Statement	GID	Adams	30 min
Apr 14, 6:25 PM CDT	Special Weather Statement	GID	Dawson	20 min
Apr 14, 6:33 PM CDT	Special Weather Statement	GID	Sherman	27 min
Apr 14, 6:39 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	51 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017 Every severe thunderstorm warning in 2017

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.