Alert archive / Nebraska / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 239, NWS Hastings, NE

July 17, 2005Hamilton County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 17, 2005, 8:40 PM CDT for Hamilton County, Nebraska. It was in force for 52 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
Jul 17, 2005, 8:40 PM CDT (01:40 UTC)
Expired
Jul 17, 2005, 9:32 PM CDT
In force
52 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Hamilton County, NE

The radar

The Grand Island radar (KUEX), 71 km from the middle of the area, began a volume at 01:44 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
Jul 17, 6:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.7 hours before the alert went out and 147 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, Omaha, NE at 00:00Z on 2005-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1191 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, Omaha, NE at 00:00Z on 2005-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
1191 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
2251 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.6

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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 1:46 PM CDT, 6 hours 54 minutes earlier.

Area forecast discussion, Jul 17, 1:46 PM CDT, 6 hours 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
146 PM CDT SUN JUL 17 2005

.SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT. BIG QUESTION FOR THIS
PERIOD IS CHANCES FOR RAIN TONIGHT.  GOOD PUSH BEHIND COLD FRONT
ACROSS NORTHERN NEBRASKA WITH DECENT PRESSURE RISES AND DEW POINTS
DROPPING INTO THE MID 40S.  THE FRONT HAS MADE IT TO A KLXN-KODX
LINE BY 18Z AND SHOULD CONTINUE TO PUSH SOUTHEASTWARD.  GOOD
MOISTURE FLOW AND TEMPS WELL INTO THE 90S AHEAD OF THE FRONT BUT CAP
HAS GOOD HOLD FOR NOW WITH H7 TEMPS 14+C.  GETTING A FEW RETURNS ON
AREA RADARS FROM THE MID CLOUD BAND ACROSS THE AREA.  CAP WILL
CONTINUE TO WEAKEN AS THE DAY WEARS ON AND SHOULD ALLOW FOR STORMS
TO DEVELOP ALONG THE FRONT.  CURRENT FORECAST HAS GOOD HANDLE ON
THIS WITH BEST CHANCES FOR STORM GENERALLY SOUTH OF I-80.  WILL
CONTINUE WITH THIS.  FRONT WILL CONTINUE TO PUSH SOUTH TONIGHT AND
ONLY A FEW LINGERING SHOWERS POSSIBLE IN FAR SOUTHERN ZONES ON
MONDAY MORNING.  ALL AREAS DRY BY 15Z.  COOLER AIRMASS WILL REMAIN
IN PLACE AND UNDER PTCLDY SKIES...TEMPS TO HOLD IN THE 80S.

QUESTION IS TIMING AND AMOUNT OF RETURN WARM AIR ADVECTION MONDAY
NIGHT INTO TUESDAY NIGHT.  FEEL FRONT WILL REMAIN TO OUR SOUTH AND
WILL LIMIT RETURN FLOW TO OUR SOUTH AND WEST.  WILL DROP MENTION OF
PRECIP FOR THEN.  GOOD SOUTHERLY FLOW STARTS IN ON TUESDAY AND LOW
LEVEL JET GETS TO GOING TUESDAY NIGHT.  MODELS SHOW WEAK MID LEVEL
WAVE COMING THROUGH TUESDAY NIGHT.  THIS ALONG WITH THE WWA COULD
BRING A CHANCE FOR LATE NIGHT STORMS. SINCE MODELS INDICATED THIS
FOR MONDAY NIGHT AND HAVE BACKED OFF OF IT...WILL NOT MENTION POPS
AT THIS TIME AND SEE HOW THINGS PLAY OUT WITH MOVEMENT OF TODAYS
FRONT.  OTHERWISE...STILL A MILD DAY ON TUESDAY WITH WARM UP AHEAD.

.LONG TERM...THE UPPER LEVEL RIDGE IS EXPECTED TO BUILD AND DOMINATE
THE WEATHER THROUGH MUCH OF THE EXTENDED.  THIS SHOULD MAKE MOST OF
THE PERIOD HOT AND DRY...HOWEVER THE GFS HAS AND NAM BOTH TRY TO
BRING A FRONT INTO THE CENTRAL PLAINS ON WEDNESDAY.  HOW FAR SOUTH
THE FRONT WILL ACTUALLY MAKE IT IS STILL IN QUESTION...AND HAVE
DECIDED TO NOT ADD A CHANCE OF THUNDERSTORMS YET.  EVEN IF IT DOES
MANAGE TO PUSH INTO THE FORECAST AREA...IT WILL HAVE TO OVERCOME A
STRONG CAP WITH H7 TEMPS OF 15-17C.  THE GFS BRINGS ANOTHER FRONT
INTO THE CENTRAL PLAINS TOWARDS THE END OF THE PERIOD.  THE
ECMWF...DGEX AND HPC DEPICTIONS KEEP THE BOUNDARY TO THE NORTH AND
WEST OF THE FORECAST AREA ON SUNDAY...SO WILL AGAIN KEEP IT DRY AND
FOLLOW THE SLOWER SOLUTIONS.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.

&&

KISNER/KING
Hazardous weather outlook, Jul 17, 7:09 PM CDT, 1 hour 31 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
709 PM CDT SUN JUL 17 2005

KSZ005-006-NEZ039>041-046>049-060>064-072>077-082>087-181200-
ADAMS NE-BUFFALO NE-CLAY NE-DAWSON NE-FILLMORE NE-FRANKLIN NE-
FURNAS NE-GOSPER NE-GREELEY NE-HALL NE-HAMILTON NE-HARLAN NE-
HOWARD NE-KEARNEY NE-MERRICK NE-NANCE NE-NUCKOLLS NE-PHELPS NE-
PHILLIPS KS-POLK NE-SHERMAN NE-SMITH KS-THAYER NE-VALLEY NE-
WEBSTER NE-YORK NE-
INCLUDING THE CITIES OF...GRAND ISLAND...HASTINGS...HOLDREGE...
KEARNEY...LEXINGTON...PHILLIPSBURG AND YORK
709 PM CDT SUN JUL 17 2005

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

.DAY ONE...TONIGHT

THERE IS A RISK OF SEVERE THUNDERSTORMS THIS EVENING AS A COLD FRONT
MOVES ACROSS THE OUTLOOK AREA. THE MAIN THREATS ARE EXPECTED TO BE
HAIL UP TO THE SIZE OF GOLFBALLS...GUSTY WINDS IN EXCESS OF 60
MPH AND BRIEF HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED TONIGHT.

&&

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

KSZ007-017>019-181200-
JEWELL KS-MITCHELL KS-OSBORNE KS-ROOKS KS-
709 PM CDT SUN JUL 17 2005

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

.DAY ONE...TONIGHT

THERE IS A RISK OF SEVERE THUNDERSTORMS THIS EVENING AS A COLD FRONT
MOVES THROUGH NORTH CENTRAL KANSAS. THE MAIN THREATS ARE EXPECTED TO
BE HAIL UP TO THE SIZE OF GOLFBALLS...GUSTY WINDS IN EXCESS OF 60
MPH AND BRIEF HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS WILL REMAIN POSSIBLE EARLY MONDAY MORNING...HOWEVER AT
THIS TIME THE RISK OF SEVERE WEATHER APPEARS TO BE LOW.  DEADLY
LIGHTNING IS STILL POSSIBLE IN ANY THUNDERSTORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED LATER THIS EVENING AND TONIGHT.

&&

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

LEWIS

In the hours before

Special weather statement, Jul 17, 6:58 PM CDT, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
658 PM CDT SUN JUL 17 2005

KSZ005>007-017>019-NEZ041-047>049-061>064-073>077-083>087-180500-
JEWELL KS-MITCHELL KS-OSBORNE KS-PHILLIPS KS-ROOKS KS-
SMITH KS-ADAMS NE-BUFFALO NE-CLAY NE-FILLMORE NE-
FRANKLIN NE-HALL NE-HAMILTON NE-HARLAN NE-HOWARD NE-
KEARNEY NE-MERRICK NE-NANCE NE-NUCKOLLS NE-PHELPS NE-
POLK NE-THAYER NE-WEBSTER NE-YORK NE-

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 642
UNTIL MIDNIGHT CDT MONDAY MORNING FOR THE FOLLOWING AREAS

IN NORTH CENTRAL KANSAS THIS WATCH INCLUDES 6 COUNTIES

JEWELL                MITCHELL              OSBORNE
PHILLIPS              ROOKS                 SMITH

IN CENTRAL NEBRASKA THIS WATCH INCLUDES 3 COUNTIES

HOWARD                MERRICK               NANCE

IN EAST CENTRAL NEBRASKA THIS WATCH INCLUDES 2 COUNTIES

POLK                  YORK

IN SOUTH CENTRAL NEBRASKA THIS WATCH INCLUDES 13 COUNTIES

ADAMS                 BUFFALO               CLAY
FILLMORE              FRANKLIN              HALL
HAMILTON              HARLAN                KEARNEY
NUCKOLLS              PHELPS                THAYER
WEBSTER

INCLUDING THE CITIES OF GRAND ISLAND...HASTINGS...HOLDREGE...
KEARNEY...PHILLIPSBURG AND YORK.
Local storm report, Jul 17, 7:57 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
757 PM CDT SUN JUL 17 2005

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

0641 PM     HAIL             BLADEN                  40.32N 98.60W
07/17/2005  0.25 INCH        WEBSTER            NE   LAW ENFORCEMENT

&&

KING
Local storm report, Jul 17, 8:36 PM CDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:27 PM CDTSevere Thunderstorm WarningGIDClay46 min
Jul 17, 8:31 PM CDTSevere Thunderstorm WarningGIDMerrick59 min
Jul 17, 8:36 PM CDTSevere Thunderstorm WarningGIDNuckolls35 min
Jul 17, 9:08 PM CDTSevere Thunderstorm WarningGIDGosper39 min
Jul 17, 9:20 PM CDTSevere Thunderstorm WarningGIDBuffalo55 min
Jul 17, 9:37 PM CDTSevere Thunderstorm WarningGIDFurnas23 min
Jul 17, 10:10 PM CDTSevere Thunderstorm WarningGIDAdams36 min
Jul 17, 10:12 PM CDTSevere Thunderstorm WarningGIDKearney18 min
Jul 17, 10:15 PM CDTSevere Thunderstorm WarningGIDHarlan30 min
Jul 17, 10:54 PM CDTSevere Thunderstorm WarningGIDPolk20 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2005Every severe thunderstorm warning in 2005

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.