Alert archive / Nebraska / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 32, NWS Hastings, NE

April 16, 2015Clay County, Hamilton County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 16, 2015, 7:45 PM CDT for Clay County, Hamilton County, Nebraska. It was in force for 30 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
Apr 16, 2015, 7:45 PM CDT (00:45 UTC)
Expired
Apr 16, 2015, 8:15 PM CDT
In force
30 min
Issued by
NWS Hastings, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Clay County, NE, Hamilton County, NE

The radar

The Grand Island radar (KUEX), 54 km from the middle of the area, began a volume at 00:47 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

Topeka, KS (KFOE), launched 00:00Z, 0.8 hours before the alert went out and 278 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2015-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 560 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2015-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
560 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
1423 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 16, 7:00 PM CDT, 45 minutes earlier.

Area forecast discussion, Apr 16, 7:00 PM CDT, 45 minutes before
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Hazardous weather outlook, Apr 16, 2:32 PM CDT, 5 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
232 PM CDT THU APR 16 2015

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
171200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
232 PM CDT THU APR 16 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THROUGH THE LATE AFTERNOON AND ESPECIALLY EVENING-OVERNIGHT
HOURS...THUNDERSTORMS WILL BECOME INCREASINGLY LIKELY ACROSS THE
OUTLOOK AREA...GENERALLY SPREADING FROM SOUTHWEST TO NORTHEAST IN
ONE OR MORE ROUNDS. MAINLY THROUGH MIDNIGHT...A FEW STORMS COULD
BECOME SEVERE...PRIMARILY IN NORTH CENTRAL KANSAS AND ROUGHLY AS
FAR NORTH AS HIGHWAY 6 IN SOUTH CENTRAL NEBRASKA. THE MAIN THREATS
WITH ANY SEVERE STORMS WILL BE HAIL UP TO AROUND THE SIZE OF
QUARTERS...AND WIND GUSTS UP TO AROUND 60 MPH. ALTHOUGH THE THREAT
FOR SEVERE STORMS IS LESSER NORTH OF THE HIGHWAY 6 CORRIDOR IN
NEBRASKA...A FEW STRONG STORMS CANNOT BE RULED OUT HERE EITHER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

CHANCES FOR THUNDERSTORMS REMAIN AREA-WIDE ON FRIDAY...AND
LASTING THROUGH SATURDAY NIGHT. MAINLY DURING THE LATE AFTERNOON
AND EVENING HOURS ON BOTH DAYS...SOME THUNDERSTORMS COULD BECOME
SEVERE...ESPECIALLY WITHIN NORTH CENTRAL KANSAS...AND ROUGHLY UP
TO THE HIGHWAY 6 CORRIDOR IN NEBRASKA. THE MAIN THREATS WITH ANY
SEVERE STORMS WOULD BE LARGE HAIL AND DAMAGING WINDS. IN
ADDITION...IF SOME AREAS START EXPERIENCING SEVERAL ROUNDS OF RAIN
OVER THE NEXT FEW DAYS...AT LEAST MINOR...BRIEF FLOODING ISSUES
COULD MATERIALIZE.

NEXT WEDNESDAY...ADDITIONAL THUNDERSTORM CHANCES RETURN TO NORTH
CENTRAL KANSAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED PRIMARILY THROUGH
MIDNIGHT...MAINLY WITHIN NORTH CENTRAL KANSAS...BUT POSSIBLY INTO
PORTIONS OF NEBRASKA AS WELL.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

PFANNKUCH/EWALD

In the hours before

Special weather statement, Apr 16, 6:22 PM CDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
622 PM CDT THU APR 16 2015

NEZ075-162345-
ADAMS NE-
622 PM CDT THU APR 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ADAMS COUNTY UNTIL 645
PM CDT...

AT 622 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
HASTINGS...MOVING NORTHWEST AT 10 MPH.

DIME SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
HASTINGS...JUNIATA...PROSSER AND HANSEN.

LAT...LON 4058 9828 4049 9843 4065 9869 4070 9861
      4070 9832 4064 9828
TIME...MOT...LOC 2322Z 140DEG 10KT 4061 9840

HEINLEIN
Local storm report, Apr 16, 6:26 PM CDT, 1 hour 19 minutes before
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Special weather statement, Apr 16, 6:34 PM CDT, 1 hour 11 minutes before
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Special weather statement, Apr 16, 7:22 PM CDT, 23 minutes before
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Special weather statement, Apr 16, 7:26 PM CDT, 19 minutes before
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Local storm report, Apr 16, 7:35 PM CDT, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:22 PM CDTSpecial Weather StatementGIDHall23 min
Apr 16, 7:26 PM CDTSpecial Weather StatementGIDHamilton34 min
Apr 16, 8:10 PM CDTSpecial Weather StatementGIDClay50 min
Apr 16, 9:02 PM CDTSpecial Weather StatementGIDFillmore28 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2015Every severe thunderstorm warning in 2015

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.