Alert archive / Nebraska / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 17, NWS Goodland, KS

May 4, 2020Dundy County, Nebraska

NWS Goodland, KS issued this severe thunderstorm warning at May 4, 2020, 1:02 AM MDT for Dundy County, Nebraska. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 4, 2020, 1:02 AM MDT (07:02 UTC)
Expired: May 4, 2020, 2:00 AM MDT
In force: 58 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Dundy County, NE

The radar

The Goodland radar (KGLD), 90 km from the middle of the area, began a volume at 07:03 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

Denver, CO (KDNR), launched 00:00Z, 7.0 hours before the alert went out and 136 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: 607 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 2079 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at May 3, 11:47 PM MDT, 1 hour 15 minutes earlier.

Area forecast discussion, May 3, 11:47 PM MDT, 1 hour 15 minutes before

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Hazardous weather outlook, May 3, 8:52 PM MDT, 4 hours 10 minutes before

Hazardous Weather Outlook
National Weather Service Goodland KS
852 PM MDT Sun May 3 2020

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-041645-
Yuma County-Kit Carson County-Cheyenne County-Cheyenne-Rawlins-
Decatur-Norton-Sherman-Thomas-Sheridan-Graham-Wallace-Logan-Gove-
Greeley-Wichita-Dundy-Hitchcock-Red Willow-
852 PM MDT Sun May 3 2020 /952 PM CDT Sun May 3 2020/

This hazardous weather outlook is for extreme southwest Nebraska...
northwest Kansas and east central Colorado.

.DAY ONE...TONIGHT...

The Marginal Risk for severe thunderstorms remains across a portion
of the region tonight mainly north of Interstate 70 and west of a
line from Colby, Kansas to McCook, Nebraska. A few strong to severe
storms continue to move across the area this evening with additional
storms expected to develop after midnight.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY...

Hazardous weather is not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Special weather statement, May 3, 11:33 PM MDT, 1 hour 29 minutes before

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Special weather statement, May 4, 12:09 AM MDT, 53 minutes before

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Local storm report, May 4, 12:10 AM MDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
1210 AM MDT MON MAY 4 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 PM     HAIL             KANORADO                39.34N 102.04W
05/03/2020  E1.00 INCH       SHERMAN            KS   PUBLIC

            QUARTER SIZE HAIL REPORTED VIA FACEBOOK.

&&

Special weather statement, May 4, 12:46 AM MDT, 16 minutes before

Special Weather Statement
National Weather Service Goodland KS
146 AM CDT Mon May 4 2020

KSZ002-014-040730-
Rawlins KS-Thomas KS-
146 AM CDT Mon May 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN THOMAS AND SOUTHERN
RAWLINS COUNTIES UNTIL 230 AM CDT...

At 146 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles north of Levant, moving east at 35 mph.

Dime to penny size hail will be possible with this storm.

Locations impacted include...
Rexford.

LAT...LON 3978 10074 3957 10074 3957 10073 3945 10072
      3942 10129 3963 10135
TIME...MOT...LOC 0646Z 258DEG 31KT 3955 10118

Vincent

Special weather statement, May 4, 12:48 AM MDT, 14 minutes before

Special Weather Statement
National Weather Service Goodland KS
1248 AM MDT Mon May 4 2020

COZ090-KSZ001-NEZ079-040730-
Yuma County CO-Cheyenne KS-Dundy NE-
1248 AM MDT Mon May 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL YUMA COUNTY IN
NORTHEASTERN COLORADO...NORTHWESTERN CHEYENNE COUNTY IN NORTHWESTERN
KANSAS AND WESTERN DUNDY COUNTIES IN SOUTHWESTERN NEBRASKA UNTIL 130
AM MDT/230 AM CDT/...

At 1247 AM MDT/147 AM CDT/, Doppler radar was tracking a strong
thunderstorm 7 miles southeast of Wray, moving east at 30 mph.

Penny to nickel size hail will be possible with this storm.

Locations impacted include...
Wray, Haigler, Laird and Parks.

This includes Highway 385 between mile markers 237 and 245.

LAT...LON 3988 10218 4007 10229 4028 10180 3998 10161
TIME...MOT...LOC 0647Z 253DEG 27KT 4003 10210

Vincent

Special weather statement, May 4, 12:55 AM MDT, 7 minutes before

Special Weather Statement
National Weather Service Goodland KS
155 AM CDT Mon May 4 2020

KSZ002-NEZ080-040745-
Rawlins KS-Hitchcock NE-
155 AM CDT Mon May 4 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN RAWLINS AND SOUTHEASTERN
HITCHCOCK COUNTIES UNTIL 245 AM CDT...

At 155 AM CDT, Doppler radar was tracking a strong thunderstorm 11
miles northwest of Atwood, moving east at 35 mph.

Dime size hail will be possible with this storm.

Locations impacted include...
Atwood, Herndon, Ludell and Blakeman.

LAT...LON 4000 10076 4000 10074 3983 10074 3981 10127
      4001 10131 4017 10077
TIME...MOT...LOC 0655Z 256DEG 31KT 3992 10119

Vincent

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 10:58 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	47 min
May 3, 11:17 PM MDT	Severe Thunderstorm Warning	GLD	Sherman	43 min
May 4, 12:09 AM MDT	Special Weather Statement	GLD	Thomas	36 min
May 4, 12:46 AM MDT	Special Weather Statement	GLD	Rawlins	44 min
May 4, 1:14 AM MDT	Special Weather Statement	GLD	Decatur	46 min
May 4, 1:45 AM MDT	Special Weather Statement	GLD	Decatur	60 min
May 3, 7:05 PM MDT	Special Weather Statement	GLD	Yuma	25 min
May 3, 7:18 PM MDT	Special Weather Statement	GLD	Yuma	27 min
May 3, 7:30 PM MDT	Special Weather Statement	GLD	Yuma	15 min
May 3, 7:33 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	42 min
May 3, 8:32 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	28 min
May 3, 8:59 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	31 min
May 3, 9:05 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	40 min
May 3, 9:25 PM MDT	Special Weather Statement	GLD	Yuma	35 min
May 3, 9:32 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	28 min
May 3, 9:45 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	45 min
May 3, 10:28 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	32 min
May 3, 11:33 PM MDT	Special Weather Statement	GLD	Yuma	27 min
May 4, 12:04 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	41 min
May 4, 12:35 AM MDT	Severe Thunderstorm Warning	GLD	Yuma	55 min
May 3, 6:05 PM MDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	40 min
May 3, 6:24 PM MDT	Special Weather Statement	GLD	Dundy	21 min
May 3, 6:44 PM MDT	Severe Thunderstorm Warning	GLD	Red Willow	46 min
May 4, 12:48 AM MDT	Special Weather Statement	GLD	Dundy	42 min
May 4, 12:55 AM MDT	Special Weather Statement	GLD	Hitchcock	50 min
May 4, 1:59 AM MDT	Special Weather Statement	GLD	Hitchcock	46 min
May 4, 2:06 AM MDT	Special Weather Statement	GLD	Dundy	54 min
May 4, 2:35 AM MDT	Special Weather Statement	GLD	Red Willow	55 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2020 Every severe thunderstorm warning in 2020

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.