Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Hastings, NE

May 1, 2018Clay County, Fillmore County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 1, 2018, 4:47 PM CDT for Clay County, Fillmore County, Nebraska. It was in force for 43 min. 3 reports 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: May 1, 2018, 4:47 PM CDT (21:47 UTC)
Expired: May 1, 2018, 5:30 PM CDT
In force: 43 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Clay County, NE, Fillmore County, NE

The radar

The Grand Island radar (KUEX), 40 km from the middle of the area, began a volume at 21:51 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
May 1, 5:02 PM CDT	HAIL 1.75	3 S Clay Center, NE	GOLF BALL SIZE HAIL ON HIGHWAY 14.
May 1, 5:09 PM CDT	HAIL 1.75	Clay Center, NE	PEA TO GOLF BALL SIZED HAIL IN CLAY CENTER.
May 1, 5:25 PM CDT	HAIL 1	3 Wsw Saronville, NE

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 1, 2:47 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.8 hours before the alert went out and 167 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: 787 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

234 
WUUS53 KGID 012147
SVRGID
NEC035-059-012230-
/O.NEW.KGID.SV.W.0021.180501T2147Z-180501T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Hastings NE
447 PM CDT TUE MAY 1 2018

The National Weather Service in Hastings has issued a

* Severe Thunderstorm Warning for...
  Clay County in south central Nebraska...
  West central Fillmore County in south central Nebraska...

* Until 530 PM CDT

* At 447 PM CDT, a severe thunderstorm was located near Fairfield, or
  15 miles southeast of Hastings, moving northeast at 25 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* Locations impacted include...
  Sutton, Harvard, Clay Center, Fairfield and Saronville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CDT for south central
Nebraska.

LAT...LON 4053 9773 4035 9817 4035 9820 4043 9828
      4047 9828 4070 9800 4070 9791
TIME...MOT...LOC 2147Z 231DEG 20KT 4043 9820 

HAIL...1.75IN
WIND...60MPH
 
$$

Mangels

1 follow-up statement

766 
WWUS53 KGID 012212
SVSGID

Severe Weather Statement
National Weather Service Hastings NE
512 PM CDT TUE MAY 1 2018

NEC035-059-012230-
/O.CON.KGID.SV.W.0021.000000T0000Z-180501T2230Z/
Clay NE-Fillmore NE-
512 PM CDT TUE MAY 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHEASTERN CLAY AND WEST CENTRAL FILLMORE COUNTIES...

At 512 PM CDT, a severe thunderstorm was located over Clay Center, or
20 miles east of Hastings, moving northeast at 30 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

Locations impacted include...
Sutton, Clay Center and Saronville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CDT for south central
Nebraska.

LAT...LON 4046 9803 4057 9810 4070 9794 4070 9791
      4053 9773 4049 9782
TIME...MOT...LOC 2212Z 234DEG 27KT 4054 9800 

HAIL...1.75IN
WIND...60MPH
 
$$

Mangels

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 8:53 PM CDT	Severe Thunderstorm Warning	GID	Valley	52 min
Apr 30, 9:45 PM CDT	Special Weather Statement	GID	Valley	45 min
May 1, 3:28 PM CDT	Severe Thunderstorm Warning	GID	Adams, Webster	47 min
May 1, 3:49 PM CDT	Severe Thunderstorm Warning	GID	Polk, York	26 min
May 1, 3:51 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Webster	39 min
May 1, 4:01 PM CDT	Severe Thunderstorm Warning	GID	Adams, Franklin, Kearney, Webster	44 min
May 1, 4:05 PM CDT	Tornado Warning	GID	Webster	25 min
May 1, 4:09 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Nuckolls, Webster	51 min
May 1, 4:16 PM CDT	Special Weather Statement	GID	Merrick	29 min
May 1, 4:21 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hall, Hamilton	39 min
May 1, 4:23 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	37 min
May 1, 4:26 PM CDT	Special Weather Statement	GID	Polk	49 min
May 1, 4:31 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	44 min
May 1, 4:39 PM CDT	Severe Thunderstorm Warning	GID	Adams, Webster	41 min
May 1, 4:39 PM CDT	Tornado Warning Tornado observed	GID	Hamilton, York	36 min
May 1, 4:51 PM CDT	Severe Thunderstorm Warning	GID	Hall, Hamilton, Merrick	24 min
May 1, 4:53 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	52 min
May 1, 4:54 PM CDT	Tornado Warning	GID	Hall	16 min
May 1, 4:57 PM CDT	Tornado Warning	GID	Adams	23 min
May 1, 4:57 PM CDT	Tornado Warning	GID	Adams	33 min
May 1, 5:00 PM CDT	Tornado Warning	GID	Nuckolls	19 min
May 1, 5:09 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	51 min
May 1, 5:16 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hall, Hamilton, Merrick	44 min
May 1, 5:22 PM CDT	Severe Thunderstorm Warning	GID	Clay, Fillmore, York	38 min
May 1, 5:25 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Thayer	50 min
May 1, 5:27 PM CDT	Special Weather Statement	GID	Merrick, Nance	48 min
May 1, 5:40 PM CDT	Tornado Warning	GID	Nuckolls, Thayer	35 min
May 1, 5:44 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	21 min
May 1, 5:54 PM CDT	Severe Thunderstorm Warning	GID	Polk	36 min
May 1, 5:57 PM CDT	Tornado Warning Tornado observed	GID	Thayer	33 min
May 1, 6:13 PM CDT	Special Weather Statement	GID	Hamilton	32 min
May 1, 6:20 PM CDT	Severe Thunderstorm Warning	GID	Thayer	25 min
May 1, 6:29 PM CDT	Special Weather Statement	GID	Merrick	31 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018 Every severe thunderstorm warning in 2018

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.