Alert archive / Nebraska / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 79, NWS Hastings, NE

May 23, 2006Adams County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 23, 2006, 6:29 PM CDT for Adams County, Nebraska. It was in force for 61 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 23, 2006, 6:29 PM CDT (23:29 UTC)
Expired
May 23, 2006, 7:30 PM CDT
In force
61 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Adams County, NE

The radar

The Grand Island radar (KUEX), 23 km from the middle of the area, began a volume at 23:31 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
May 23, 3:30 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.5 hours before the alert went out and 189 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 12:00Z on 2006-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2006-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -95 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2285 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-95 m²/s²
0-3 km storm-relative helicity
-4 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 May 23, 2:25 PM CDT, 4 hours 4 minutes earlier.

Area forecast discussion, May 23, 2:25 PM CDT, 4 hours 4 minutes before
AREA FORECAST DISCUSSION...CORRECTED TYPOS
NATIONAL WEATHER SERVICE HASTINGS NE
225 PM CDT TUE MAY 23 2006

.SHORT TERM...MAIN PROBLEM IN THE SHORT TERM IS CHANCES OF SEVERE
THUNDERSTORMS TONIGHT. AFTERNOON SURFACE ANALYSIS PLACES A SURFACE
TROUGH ACROSS WESTERN SOUTH DAKOTA THROUGH WESTERN NEBRASKA INTO
WESTERN KANSAS. WATER VAPOR IMAGERY SHOWS A NICE SPIN/UPPER LOW
OVER NORTHEAST WYOMING...AND THE LATEST RADAR MOSAIC SHOWS
THUNDERSTORMS DEVELOPING OVER WESTERN NEBRASKA NEAR THE SURFACE
BOUNDARY.

12Z NAM/GFS ARE IN RELATIVE AGREEMENT WITH THE SCENARIO FOR
TONIGHT. THE UPPER LOW WILL LIFT ACROSS THE DAKOTAS THIS EVENING
WHICH WILL HELP SHOVE THE SURFACE BOUNDARY INTO THE WESTERN
PORTIONS OF THE FORECAST AREA LATE THIS AFTERNOON. INSTABILITY
WILL NOT BE A PROBLEM WITH SURFACE DEWPOINTS IN THE MID 50S TO MID
60S AND SBCAPE VALUES UP TO 2500 J/KG. DEEP LAYER SHEAR (0-6 KM)
APPEARS SUFFICIENT FOR SUPERCELLS WITH VALUES APPROACHING 45 KTS.
THERE WILL BE A COUPLE OF LIMITING FACTORS FOR TORNADOES WITH WEAK
LOW LEVEL (0-1KM) SHEAR AND HIGH LCL/LFC HEIGHTS...SO THE MAIN
THREATS WILL BE DAMAGING WINDS WITH INVERTED-V SOUNDINGS AND LARGE
HAIL. IT SHOULD TAKE FAIRLY IMPRESSIVE CORES TO DEVELOP 1 INCH
HAIL TODAY WITH FREEZING LEVELS OF 13KFT AGL.

THE DRY AIR COMES IN RELATIVELY RAPIDLY THIS EVENING WITH STORMS
ENDING FROM WEST TO EAST. HAVE ONLY THE EAST WITH A POP STILL
AFTER MIDNIGHT...BUT THAT TOO SHOULD COME TO AN END BY EARLY
WEDNESDAY MORNING.

AFTER TONIGHT...IT AGAIN LOOKS MAINLY DRY THROUGH 12Z FRIDAY. THE
UPPER LOW MOVES INTO MINNESOTA ON WEDNESDAY WHICH COULD BRING SOME
WRAP AROUND SHOWERS TO MAINLY EASTERN NEBRASKA...SO WILL KEEP THE
FORECAST AREA DRY. WILL ALSO HAVE TO WATCH CONVECTION OVER THE
HIGH PLAINS THURSDAY NIGHT...HOWEVER THINK THAT THIS WILL MAINLY
STAY WEST AND SOUTH OF THE CWA SO WILL NOT ADD POPS YET.

.LONG TERM...12Z FRIDAY THROUGH TUESDAY. MAIN CONCERN IN THE LONG
TERM IS HOW WARM TEMPS WILL GET THIS WEEKEND...ALONG WITH SOME
MINIMAL PRECIPITATION CHANCES.

A WEAK UPPER LEVEL SHORTWAVE RIDGE MOVES ACROSS THE CENTRAL PLAINS
ON FRIDAY WHILE A SURFACE TROUGH DEEPENS IN THE LEE OF THE ROCKIES.
BOTH THE NAM AND GFS ARE HINTING AT AN MCS POSSIBLY BRUSHING THE FAR
SOUTHERN CWA EARLY FRIDAY MORNING. HAVE OPTED TO LEAVE OUT POPS FOR
NOW AS HIGH PLAINS CONVECTION HAS STRUGGLED LATELY TO MAKE IT THIS
FAR EAST. ALSO GIVEN STEERING FLOW...IT COULD EASILY MISS US TO THE
SOUTH. THUS WILL HOLD OFF FOR NOW AND CONTINUE TO MONITOR IN LATER
FORECAST PACKAGES. WITH SOUTHERLY WINDS AT LOW LEVELS AND BUILDING
HEIGHTS ALOFT...FRIDAY CONTINUES TO LOOK WARM WITH HIGHS IN THE
LOWER TO MID 90S LIKELY. THE LLJ KICKS IN FRIDAY NIGHT...AND HAVE
ADDED SLIGHT CHANCE POPS ACROSS THE FAR EASTERN CWA WHERE LOW-LEVEL
JET IS POKING INTO.

SOUTHWEST FLOW ALOFT SPREADS ACROSS THE REGION ON SATURDAY AS A
TROUGH MOVES ACROSS THE INTERMOUNTAIN WEST. THE LEE SURFACE TROUGH
REMAINS IN PLACE...CONTINUING TO DRIVE SOUTHERLY WINDS. WITH STRONG
WAA...850MB TEMPS SOAR INTO THE UPPER 20S TO NEAR 30. SATURDAY LOOKS
TO BE THE WARMEST DAY OF THE PERIOD. THE LEE TROUGH PULLS EAST INTO
THE EASTERN HIGH PLAINS ON SUNDAY. LOOKS LIKE ANOTHER WARM DAY WITH
SOUTHERLY SURFACE WINDS CONTINUING AND SOUTHWEST FLOW ALOFT. WITH
THE SURFACE BOUNDARY LINGERING IN THE AREA SUNDAY INTO MONDAY AND
SOME MOISTURE AND RESULTING INSTABILITY FROM DAYTIME HEATING...THERE
IS A SMALL POTENTIAL FOR CONVECTION. FOR NOW HAVE DECIDED TO KEEP
POPS CONFINED TO THE MONDAY AFTERNOON AND MONDAY NIGHT PERIOD WHEN
THE MODELS ARE IN DECENT CONSENSUS OF DROPPING THE BOUNDARY FARTHER
SOUTH INTO THE CWA. TEMPS ON TUESDAY SHOULD BE SLIGHTLY COOLER
ESPECIALLY ACROSS THE NORTH PER BOUNDARY SLIDING SOUTH LATE DAY
MONDAY...HOWEVER HIGHS STILL LOOK WELL ABOVE AVERAGE.

&&

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

CK/KB
Hazardous weather outlook, May 23, 3:34 PM CDT, 2 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HASTINGS NE
334 PM CDT TUE MAY 23 2006

NEZ039>041-046>049-241200-
VALLEY-GREELEY-NANCE-SHERMAN-HOWARD-MERRICK-POLK-
334 PM CDT TUE MAY 23 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NEBRASKA GENERALLY ALONG AND NORTH OF HIGHWAY 92.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO THE
EVENING. THE PRIMARY SEVERE WEATHER THREATS WILL BE DAMAGING
WINDS AND HAIL UP TO THE SIZE OF GOLFBALLS. AN
ISOLATED...BRIEF TORNADO IS ALSO POSSIBLE. A TORNADO WATCH IS IN
EFFECT UNTIL 9 PM THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A CHANCE OF THUNDERSTORMS ACROSS PORTIONS OF THE OUTLOOK
AREA FRIDAY NIGHT...AND THEN AGAIN MONDAY INTO MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THROUGH 9 PM.

&&

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

KSZ005>007-017>019-NEZ060>064-072>077-082>087-241200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-DAWSON-BUFFALO-HALL-
HAMILTON-YORK-GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-
HARLAN-FRANKLIN-WEBSTER-NUCKOLLS-THAYER-
334 PM CDT TUE MAY 23 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
NEBRASKA AND NORTH CENTRAL KANSAS...GENERALLY SOUTH OF HIGHWAY
92.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS WILL DEVELOP ACROSS THE OUTLOOK AREA LATE THIS
AFTERNOON...AND THEN SPREAD EAST THIS EVENING. SOME OF THE
THUNDERSTORMS WILL BECOME SEVERE WITH THE MAIN THREATS EXPECTED TO
BE DAMAGING WINDS AND HAIL UP TO THE SIZE OF GOLFBALLS. A SEVERE
THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A CHANCE OF THUNDERSTORMS ACROSS PORTIONS OF THE OUTLOOK
AREA FRIDAY NIGHT...AND THEN AGAIN MONDAY INTO MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THROUGH 9 PM.

&&

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

In the hours before

Local storm report, May 23, 5:46 PM CDT, 43 minutes before
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Special weather statement, May 23, 5:46 PM CDT, 43 minutes before
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Local storm report, May 23, 6:04 PM CDT, 25 minutes before
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Special weather statement, May 23, 6:09 PM CDT, 20 minutes before
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Special weather statement, May 23, 6:12 PM CDT, 17 minutes before
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Special weather statement, May 23, 6:16 PM CDT, 13 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 5:29 PM CDTSevere Thunderstorm WarningGIDSherman47 min
May 23, 5:47 PM CDTSevere Thunderstorm WarningGIDHoward43 min
May 23, 6:27 PM CDTSevere Thunderstorm WarningGIDHall63 min
May 23, 6:37 PM CDTSevere Thunderstorm WarningGIDHoward29 min
May 23, 6:51 PM CDTSevere Thunderstorm WarningGIDMerrick, Nance39 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2006Every severe thunderstorm warning in 2006

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.