Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 240, NWS Hastings, NE

August 26, 2002Buffalo County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 26, 2002, 11:40 AM CDT for Buffalo County, Nebraska. It was in force for 50 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
Aug 26, 2002, 11:40 AM CDT (16:40 UTC)
Expired
Aug 26, 2002, 12:30 PM CDT
In force
50 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Buffalo County, NE

The radar

The Grand Island radar (KUEX), 76 km from the middle of the area, began a volume at 16:41 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 12:00Z, 4.7 hours before the alert went out and 142 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 2002-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1929 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 12:00Z on 2002-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
1929 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
1191 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

980 
WUUS53 KGID 261640
SVRGRI
NEC019-261730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1139 AM CDT MON AUG 26 2002

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BUFFALO COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 1230 PM CDT

* AT 1136 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES NORTH OF RAVENNA...OR ABOUT 32 MILES
  NORTH OF KEARNEY...MOVING SOUTH AT 25 MPH.

SOME LOCATIONS IN THE PATH OF THIS SEVERE STORM INCLUDE RAVENNA...
POOLE...RIVERDALE AND GIBBON.

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

THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING WIND GUSTS GREATER 
THAN 60 MPH AND LARGE HAIL THE SIZE OF DIMES.

LAT...LON 4102 9874 4104 9922 4068 9924 4070 9873

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 Aug 26, 2:10 AM CDT, 9 hours 30 minutes earlier.

Area forecast discussion, Aug 26, 2:10 AM CDT, 9 hours 30 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
210 AM CDT MON AUG 26 2002

MAIN FORECAST CHALLENGE THIS TIME IS WHEN/WHERE/IF THUNDERSTORMS
WILL CROSS GID CWA.

00Z UA ANALYSES HAD NEB ON NORTHEASTERN EDGE OF SW U.S. RIDGING. SFC
ANALYSIS HAS EXTREMELY WEAK GRADIENT WITH WEAK RIDGING FROM OH
VALLEY TO SE COLORADO.

MODELS IN GENERAL AGREEMENT LEAVING WEAK SFC PATTERN ACROSS NEB/KS.
WITH NO BOUNDARIES AND NO NOCTURNAL LOW LEVEL JET, WILL NEED UPPER
LEVEL DYNAMICS TO PRODUCE LIFT. UPPER LOW EXPECTED TO DEVELOP OVER
WESTERN STATES AND TURN FLOW TOWARD THE WSW INTO NEB. SWRN STATES
RIDGE REMAINS IN PLACE, THOUGH. SO TIMING OF FEATURES APPEARS
DIFFICULT.

TONIGHT LOOKS LIKE A REPEAT OF SUN NIGHT WITH TSTMS STAYING WELL N
OF GID CWA. WITH UPPER FLOW SHIFTING A LITTLE SOUTHWEST AND SOME
WEAK DIFFLUENCE OVER GID CWA, WILL CARRY MINOR POPS TUE NIGHT AND
WED NIGHT.

EXTENDED MODELS SEND NO MAJOR FEATURES ACROSS THE CENTRAL STATES
THURSDAY THROUGH SUNDAY. ONE MINOR WAVE SHOWN ON CANADIAN AND MRF
MAY BE ENOUGH TO PRODUCE SOME TSTMS FRIDAY.

TSTMS CANNOT BE RULED OUT ENTIRELY ANY DAY...ESPECIALLY DURING
THE NIGHTTIME HOURS.

.GID...NONE.

SCHURR

In the hours before

Special weather statement, Aug 26, 6:52 AM CDT, 4 hours 48 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-271200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
652 AM CDT MON AUG 26 2002

...SPOTTER ACTIVATION SHOULD NOT BE REQUIRED TODAY OR TONIGHT...

SCATTERED THUNDERSTORMS WILL MOVE SOUTH ACROSS CENTRAL NEBRASKA
THIS MORNING...AND AFFECT AREAS GENERALLY NORTH OF INTERSTATE 80.
HAIL TO ONE INCH IN DIAMETER IS THE PRIMARY CONCERN FROM THE
STORMS...ALTHOUGH WIND GUSTS TO 40 MPH IS ALSO POSSIBLE.  WIDESPREAD
SEVERE WEATHER IS NOT EXPECTED...THEREFORE SPOTTERS SHOULD NOT BE
NEEDED.

THUNDERSTORMS WILL MOVE OUT OF CENTRAL NEBRASKA BY THIS AFTERNOON...
AND WEAK HIGH PRESSURE AT THE SURFACE AND ALOFT IS FORECAST TO HOLD
STEADY ACROSS NEBRASKA AND KANSAS.  IT SHOULD PREVENT THUNDERSTORMS
FROM DEVELOPING OVER SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS
INTO TONIGHT.

THE ATMOSPHERE WILL GRADUALLY BECOME MORE FAVORABLE FOR PRODUCING
ADDITIONAL STORMS AS THE WEEK PROGRESSES.

CMF
Local storm report, Aug 26, 9:06 AM CDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
906 AM CDT MON AUG 26 2002

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

0817 AM    8 NE FULLERTON            NE   1 INCH HAIL
08/26/02   NANCE                          REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
Special weather statement, Aug 26, 11:04 AM CDT, 36 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-271200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
1104 AM CDT MON AUG 26 2002

...SPOTTER ACTIVATION SHOULD NOT BE REQUIRED TODAY OR TONIGHT...

WEAK HIGH PRESSURE AT THE SURFACE AND ALOFT IS EXPECTED TO HOLD
STEADY ACROSS NEBRASKA AND KANSAS.  IT SHOULD PREVENT THUNDERSTORMS
FROM DEVELOPING OVER SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS
THROUGH THE OVERNIGHT HOURS.

DEE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 8:06 AM CDTSevere Thunderstorm WarningGIDNance39 min
Aug 26, 8:25 AM CDTSevere Thunderstorm WarningGIDMerrick65 min
Aug 26, 9:24 AM CDTSevere Thunderstorm WarningGIDHoward66 min
Aug 26, 11:28 AM CDTSevere Thunderstorm WarningGIDSherman32 min
Aug 26, 11:54 AM CDTSevere Thunderstorm WarningGIDHall51 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm warning in 2002

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.