Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 32, NWS Hastings, NE

April 30, 2003Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 30, 2003, 12:52 AM CDT for Dawson County, Nebraska. It was in force for 53 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 30, 2003, 12:52 AM CDT (05:52 UTC)
Expired: Apr 30, 2003, 1:45 AM CDT
In force: 53 min
Issued by: NWS Hastings, NE
Area: Counties, with a storm outline in the text

County Dawson County, NE

The radar

The North Platte radar (KLNX), 132 km from the middle of the area, began a volume at 05:55 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.9 hours before the alert went out and 67 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: 92 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 656 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

876 
WUUS53 KGID 300552
SVRGID
NEC047-300645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1252 AM CDT WED APR 30 2003

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAWSON COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 145 AM CDT

* AT 1247 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES NORTH OF LEXINGTON...MOVING EAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  EDDYVILLE AT 105 AM CDT
  OVERTON AT 110 AM CDT
  SUMNER AT 120 AM CDT

PEOPLE IN DAWSON COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.

THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL THE SIZE OF PENNIES.

LAT...LON 4100 10015 4074 10019 4070 9943 4103 9943
$$
FAY
NNNN

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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 1:30 PM CDT, 11 hours 22 minutes earlier.

Area forecast discussion, Apr 29, 1:30 PM CDT, 11 hours 22 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
130 PM CDT TUE APR 29 2003

...POT SVR WX IS THE CONCERN OF THE DAY...

AREA OF CONCERN IS SFC FRONT STALLED ACRS NCNTRL KS THIS AFTN WITH
ST N OF THE BNDRY AND MID TO UPR 70S TEMPS OVER LOW 60S DPS TO THE
SOUTH.  LAPS HELICITIES IN EXCESS OF 300 M2/S2 WERE NOSING INTO
THIS JEWELL AND MITCHELL CNTIES AS OF 17Z.  VWP PLOTS AND PROFILERS
IND IND ERLY FLOW N OF THE FRONT IS SHALLOW WITH SOME ELEVATED TSRA
FORMING IMMEDIATELY N OF THE SFC FRONT.

SHOULD ALSO SEE SOME HIGH PLNS DVLPMNT AS THE AFTN/EVE PROGRESSES
WITH MSTR CNVRGNC IN UPSLOPE FLOW IN ADVN OF NXT SHRT MOVG OUT OF
THE FOUR CORNERS REGION.  TSRA CONSOLIDATION INTO ANOTHER MCS IND
FOR THE OVRNGT HR...WITH EWD MOVEMENT ALNG/JUST N OF 850 WARM/STNRY
FRNT WHICH IS EXPECTED TO BE STATIONED A BIT N OF THE +RA AREA FM
LAST NGTS SYS.

BOTTOM LINE IS THAT WE WL BE WATCHING THE SFC BNDRY THIS AFTN/EVE
FOR THE DREADED TOR WITH +TSRAGR AGAIN EXPECTED FOR THE OVRNGT HRS.

MINOR ADJUSTMENTS ONLY TO THE REST OF THE PACKAGE.

.GID...NONE.

09

Hazardous weather outlook, Apr 29, 8:10 PM CDT, 4 hours 42 minutes before

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-301200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
810 PM CDT TUE APR 29 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND
PARTS OF NORTH CENTRAL KANSAS.

.DAY ONE...REST OF THE EVENING AND TONIGHT

SCATTERED THUNDERSTORMS WILL BECOME MORE NUMEROUS TONIGHT AS THEY
DEVELOP ALONG A FRONTAL BOUNDARY ACROSS CENTRAL NEBRASKA...AND ALSO
ALONG A SECOND FRONTAL BOUNDARY NEAR THE NEBRASKA AND KANSAS BORDER.
THE STORMS ARE CAPABLE OF PRODUCING LARGE HAIL THE SIZE OF QUARTERS
INTO THE OVERNIGHT HOURS. THUNDERSTORMS ALONG AND SOUTH OF THE
NEBRASKA AND KANSAS BORDER MAY PRODUCE SOME TORNADOS.

VERY HEAVY RAIN IS ALSO EXPECTED FROM THE STORMS TONIGHT...AND
LOCALIZED FLOODING MAY OCCUR.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

ON WEDNESDAY...DEEP SURFACE LOW PRESSURE OVER CENTRAL KANSAS COMBINED
WITH STRONG UPPER LEVEL ENERGY MOVING EAST OF THE CENTRAL ROCKIES...
WILL BRING ANOTHER CHANCE FOR SEVERE WEATHER ALONG A SURFACE
BOUNDARY OVER NORTH CENTRAL KANSAS AND SOUTHEASTERN NEBRASKA.
THE ENVIRONMENT WILL BE VERY FAVORABLE FOR STRONG THUNDERSTORMS
CAPABLE OF PRODUCING VERY LARGE HAIL...DAMAGING WINDS AND A FEW
TORNADOES...MAINLY FOR AREAS EAST OF HIGHWAY 281.

THE CHANCE FOR THUNDERSTORMS EXISTS THROUGH WEDNESDAY NIGHT...THEN
THUNDERSTORM CHANCES RETURN AGAIN THIS WEEKEND.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER ACTIVATION WILL BE NEEDED THE REST OF THE EVENING AND
TONIGHT.

FAY

In the hours before

Local storm report, Apr 29, 10:12 PM CDT, 2 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1012 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0955 PM    GUIDE ROCK                NE    1 INCH HAIL
04/29/03   WEBSTER

1007 PM    6 W SUPERIOR              NE    .75 INCH HAIL
04/29/03   NUCKOLLS

Local storm report, Apr 29, 10:13 PM CDT, 2 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1013 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0450 AM    AXTELL                    NE    1 INCH HAIL
04/29/03   KEARNEY                         HAIL UP TO ONE INCH.

Local storm report, Apr 29, 10:16 PM CDT, 2 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1016 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1000 PM    5 NE GUIDE ROCK           NE    1 INCH HAIL
04/29/03   NUCKOLLS

Local storm report, Apr 29, 10:31 PM CDT, 2 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1031 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1025 PM    1 N SUPERIOR              NE    1 INCH HAIL
04/29/03   NUCKOLLS

1025 PM    2 NW SUPERIOR             NE    1.25 INCH HAIL
04/29/03   NUCKOLLS

1027 PM    1 NW SUPERIOR             NE    1.5 INCH HAIL
04/29/03   NUCKOLLS

1027 PM    SUPERIOR                  NE    1 INCH HAIL
04/29/03   NUCKOLLS

Local storm report, Apr 29, 11:23 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1123 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1121 PM    DESHLER                   NE    .75 INCH HAIL
04/29/03   THAYER

Local storm report, Apr 29, 11:31 PM CDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WFO HASTINGS NE
1131 PM CDT TUE APR 29 2003

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1128 PM    DESHLER                   NE    1.75 INCH HAIL
04/29/03   THAYER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 7:13 PM CDT	Severe Thunderstorm Warning	GID	Nance	47 min
Apr 29, 7:57 PM CDT	Severe Thunderstorm Warning	GID	Nance	48 min
Apr 29, 8:11 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Webster	64 min
Apr 29, 8:39 PM CDT	Tornado Warning	GID	Franklin, Webster	66 min
Apr 29, 9:41 PM CDT	Severe Thunderstorm Warning	GID	Greeley	49 min
Apr 29, 9:43 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	47 min
Apr 29, 10:26 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	64 min
Apr 29, 10:35 PM CDT	Severe Thunderstorm Warning	GID	Dawson	40 min
Apr 29, 10:54 PM CDT	Severe Thunderstorm Warning	GID	Thayer	66 min
Apr 29, 11:42 PM CDT	Severe Thunderstorm Warning	GID	Buffalo	48 min
Apr 29, 11:58 PM CDT	Severe Thunderstorm Warning	GID	Thayer	62 min
Apr 30, 12:25 AM CDT	Severe Thunderstorm Warning	GID	Hall, Howard, Sherman	65 min
Apr 30, 1:28 AM CDT	Severe Thunderstorm Warning	GID	Merrick	62 min
Apr 30, 1:30 AM CDT	Severe Thunderstorm Warning	GID	Howard	60 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2003 Every severe thunderstorm warning in 2003

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.