Alert archive / Nebraska / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 105, NWS Hastings, NE

June 22, 2007Nuckolls County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 22, 2007, 8:26 PM CDT for Nuckolls County, Nebraska. It was in force for 64 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
Jun 22, 2007, 8:26 PM CDT (01:26 UTC)
Expired
Jun 22, 2007, 9:30 PM CDT
In force
64 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Nuckolls County, NE

The radar

The Grand Island radar (KUEX), 37 km from the middle of the area, began a volume at 01:29 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 22, 2:56 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.4 hours before the alert went out and 240 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, N. Platte/Lee Bi, NE at 00:00Z on 2007-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1731 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, N. Platte/Lee Bi, NE at 00:00Z on 2007-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
1731 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1837 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Jun 22, 6:22 PM CDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jun 22, 6:22 PM CDT, 2 hours 4 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
622 PM CDT FRI JUN 22 2007

.AVIATION...APPEARS THAT THUNDERSTORMS SHOULD REMAIN SOUTH OF THE
TERMINAL LOCATION TONIGHT...SO DID NOT PUT THEM IN AT THIS TIME.
WILL CONTINUE TO MENTION THE POSSIBLITY OF LIGHT FOG LATE TONIGHT
INTO EARLY SATURDAY MORNING WITH LIGHT WINDS AND LOW TEMPERATURE
AND DEWPOINT SPREADS.

&&

.PREV DISCUSSION... /ISSUED 218 PM CDT FRI JUN 22 2007/

SHORT TERM...THROUGH 12Z SUNDAY. CURRENT SURFACE OBSERVATIONS
DEPICT VERY WEAK SURFACE BOUNDARY REFLECTION ROUGHLY VICINITY OF
HIGHWAY 30 FROM THE COLUMBUS NEBRASKA AREA BACK TO MAYBE HOLDREGE OR
SO. PRETTY HARD TO DISCERN. WHAT STANDS OUT WELL IS 3K+ CAPE ALONG
THIS SAME AREA...AS SURFACE DEWPOINTS OF 65 TO 72 DEGREES PERSIST.
LAPSE DATA SUGGEST NO CAP IN PLACE. CU FIELD WIDESPREAD...WITH HINTS
OF MORE VERTICAL DEVELOPMENT IN CU EAST OF HEBRON NEBRASKA...AND
FROM YORK TO OMAHA. PROFILER DATA CONTINUES TO SHOW WEAK UPPER
TROUGH OVER CWFA LEFT OVER FROM LAST NIGHT. H5-3 WINDS ARE MUCH
STRONGER /RELATIVELY/ TO OUR EAST OVER IOWA PER SLATER PROFILER.

FORECAST CONCERN IS AMOUNT OF CONVECTION TONIGHT. THERE IS VERY LITTLE
SURFACE CONVERGENCE HAPPENING. WHAT IS GOING ON IS WELL EAST...OVER
IOWA. CONVECTION IS GOING OVER THERE. THE RUC DOES FORECAST INCREASING
LOW LEVEL CONVERGENCE...ESPECIALLY JUST EAST BY LATE AFTERNOON. DON/T
EXPECT CURRENT MONTANA WAVE TO INFLUENCE OUR WEATHER...SO WE WORK
WITH WHAT WE HAVE. THAT IS A HIGH CAP/WEAK SHEAR ENVIRONMENT OVER A
GOOD PORTION OF THE CWFA. SEEMS MORE LIKELY WE WILL GET SOME
ISOLATED DEVELOPMENT...FAVORING THE EASTERN CWFA...AND POSSIBLY
UNZIPPING A BIT WESTWARD. HAVE KEPT SMALL RISK THROUGH THE EVENING
HOURS...JUST SORT OF WAITING FOR SOMETHING TO DEVELOP. AN ISOLATED
PULSE WEAKLY SEVERE STORM IS POSSIBLE THROUGH SUNSET WITH SUCH HIGH
CAPES...BUT OVERALL SCOPE OF THINGS VERY LIMITED. IF TSTORMS DO
DEVELOP...EXPECT THE ONSET OF SUNSET WILL START TO SHUT THINGS DOWN
AND DO BY DAWN SATURDAY.

ON SATURDAY...SOME HIGH DEBRIS CLOUDS/HAZE WILL BE AROUND
EARLY...AND THEN SUNSHINE WILL TAKE OVER. RETURN FLOW SLOW TO SET UP
AND EASTERLY FLOW SETS UP MUCH OF THE DAY. EXPECT TEMPERATURES TO
BALLPARK THE UPPER 80S WITH A FEW DEGREES WARMER WEST/SOUTHWEST
CWFA. DON/T SEE ANY REAL REASON FOR PRECIPITATION AFTER TONIGHT.

LONG TERM...SUNDAY THROUGH FRIDAY.  THE PATTERN ALOFT WILL BE
DOMINATED BY AN UPPER RIDGE AXIS ORIENTED ACROSS THE SOUTHERN AND
CENTRAL PLAINS STATES.  THIS WILL RESULT IN HOT TEMPERATURES DURING
THE DAY...WITH HIGHS NEAR 90F...AND MILD NIGHTS WITH LOWS IN THE
60S.  THERE IS AN OUTSIDE CHANCE FOR PCPN TUESDAY NIGHT AS AN UPPER
TROUGH TRANSLATES ALONG THE US AND CANADIAN BORDER...SENDING A COOL
FRONTAL BOUNDARY SOUTH THROUGH THE DAKOTAS AND ONTO THE PLAINS.
THERE IS SOME QUESTION ON HOW FAR SOUTH THE BOUNDARY AND TROUGH WILL
GET AS IT IMPEDES THE RIDGE...HOWEVER...CANNOT COMPLETELY RULE OUT
THE CHANCE FOR CONVECTION AND HAVE ADDED SOME LOW POPS TO THE
FORECAST.  GFS ENSEMBLES ARE NOT OVERLY ROBUST ON INDICATING PCPN
THRU THE EXTENDED PERIODS...THEREFORE THE REMAINDER OF THE FORECAST
REMAINS DRY AND CAN BE EVALUATED ON A DAY BY DAY BASIS.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.
&&
Hazardous weather outlook, Jun 22, 3:05 PM CDT, 5 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HASTINGS NE
305 PM CDT FRI JUN 22 2007

NEZ039-040-231200-
VALLEY-GREELEY-
305 PM CDT FRI JUN 22 2007

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

.DAY ONE...THIS EVENING AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE FOR THUNDERSTORMS TUESDAY NIGHT FOR THE OUTLOOK
AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

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

KSZ005>007-017>019-NEZ041-046>049-060>062-072>075-082>085-231200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-NANCE-SHERMAN-HOWARD-
MERRICK-POLK-DAWSON-BUFFALO-HALL-GOSPER-PHELPS-KEARNEY-ADAMS-
FURNAS-HARLAN-FRANKLIN-WEBSTER-
305 PM CDT FRI JUN 22 2007

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

.DAY ONE...THIS EVENING AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE THIS EVENING AND
TONIGHT. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...HOWEVER A FEW
STORMS MAY BECOME STRONG AND PRODUCE DIME SIZE HAIL AND 50 MPH
WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE FOR THUNDERSTORMS TUESDAY NIGHT ACROSS THE
OUTLOOK AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

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

NEZ063-064-076-077-086-087-231200-
HAMILTON-YORK-CLAY-FILLMORE-NUCKOLLS-THAYER-
305 PM CDT FRI JUN 22 2007

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

.DAY ONE...THIS EVENING AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED THIS EVENING
ALONG A FRONTAL BOUNDARY. SEVERE THUNDERSTORMS ARE POSSIBLE...WITH
HAIL THE SIZE OF QUARTERS AND 60 MPH WINDS THE PRIMARY HAZARDS.

THE INTENSITY OF THE THUNDERSTORMS WILL DIMINISH AFTER SUNSET.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY NIGHT ACROSS THE
OUTLOOK AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING.

&&

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

In the hours before

Special weather statement, Jun 22, 7:29 PM CDT, 57 minutes before
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Special weather statement, Jun 22, 7:43 PM CDT, 43 minutes before
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Special weather statement, Jun 22, 8:00 PM CDT, 26 minutes before
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Local storm report, Jun 22, 8:04 PM CDT, 22 minutes before
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Local storm report, Jun 22, 8:06 PM CDT, 20 minutes before
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Special weather statement, Jun 22, 8:19 PM CDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 7:18 PM CDTSevere Thunderstorm WarningGIDClay42 min
Jun 22, 9:36 PM CDTSevere Thunderstorm WarningGIDClay, Nuckolls54 min
Jun 22, 9:52 PM CDTSevere Thunderstorm WarningGIDNuckolls38 min
Jun 22, 11:33 PM CDTSevere Thunderstorm WarningGIDWebster27 min
Jun 23, 12:33 AM CDTSevere Thunderstorm WarningGIDFranklin27 min
Jun 22, 11:31 PM CDTSevere Thunderstorm WarningGIDJewell29 min
Jun 23, 2:02 AM CDTSevere Thunderstorm WarningGIDRooks58 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2007Every severe thunderstorm warning in 2007

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.