Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 228, NWS Hastings, NE

August 22, 2002Kearney County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 22, 2002, 1:49 AM CDT for Kearney County, Nebraska. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 22, 2002, 1:49 AM CDT (06:49 UTC)
Expired
Aug 22, 2002, 2:30 AM CDT
In force
41 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Kearney County, NE

The radar

The Grand Island radar (KUEX), 54 km from the middle of the area, began a volume at 06:49 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.

What was reported inside it

TimeReportWhereRemark
Aug 22, 1:55 AM CDTHail 1Axtell, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 00:00Z, 6.8 hours before the alert went out and 149 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 2002-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 508 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 2002-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
508 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
2396 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

637 
WUUS53 KGID 220649
SVRGRI
NEC099-220730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
149 AM CDT THU AUG 22 2002

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KEARNEY COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 230 AM CDT

* AT 144 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES WEST OF AXTELL...OR ABOUT 7 MILES EAST
  OF HOLDREGE...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  AXTELL AT 155 AM CDT
  MINDEN AT 210 AM CDT
  NORMAN AT 215 AM CDT

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

DAMAGING THUNDERSTORM WINDS IN EXCESS OF 60 MPH AND LARGE HAIL THE 
SIZE OF QUARTERS ARE LIKELY.

LAT...LON 4056 9916 4036 9917 4047 9876 4069 9886

NNNN

09

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 21, 2:05 PM CDT, 11 hours 44 minutes earlier.

Area forecast discussion, Aug 21, 2:05 PM CDT, 11 hours 44 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
205 PM CDT WED AUG 21 2002

...FORECAST CONCERN TO BE CHANCE OF RAIN NEXT COUPLE OF DAYS...

EXTENSIVE CLOUD DECK ACROSS MUCH OF THE CWA KEPT TEMPERATURES FROM
RISING EARLIER BUT WARMUP OCCURRING QUICKLY ACCORDING TO 18Z
OBSERVATIONS. LOW PRESSURE STILL SITTING OVER SOUTHERN SDAK BETWEEN
PIR AND SFD. TROUGH EXTENDS SOUTH TO NEAR BBW TO BETWEEN HLC AND
MCK AND CONTINUES SOUTH. DEWPOINTS DROP TO THE MID 50S TO THE WEST
OF THE TROUGH AND MID 40S AROUND CDR. MEANWHILE 70 DEWPOINT LINE HAS
A WESTERN EXTENT OF ODX TO JYR TO NEAR RSL WITH THE BEST MOISTURE
POOLING WHERE NE/IA/KS/MO MEET.

UPPER AIR ANALYSIS AT 12Z SHOWED NEXT SHORTWAVE APPROACHING FROM
WEST AND WAS JUST EAST OF DEN AND ABQ AT 700 MB. 17Z PROFILER
NETWORK AT THAT LEVEL PUT THE WAVE THROUGH MBW AND PLT ALTHOUGH
WINDS WERE LIGHT.  ALSO HAD A 700 WARM LAYER...13 TO 15C...IN PLACE
FROM DDC TO LBF.  PLENTY OF MOISTURE IN PLACE OVER CWA AT ALL
SIGNIFICANT LEVELS. 14C 850 DEWPOINT AREA ALSO EXTENDED FROM WEST
OF LBF TO DDC AND THEN NORTH AND EAST FROM THERE.

MESO ETA WANTING TO DROP SURFACE LOW TO NEAR BBW BY 18Z HASNT
MATERIALIZED AS NOTED ABOVE. SURFACE TROUGH HAS MOVED A LITTLE EAST
TODAY. IF IT WOULD BLAST THROUGH CWA IT WOULD END THE RAIN CHANCE
QUICKLY BUT DO NOT EXPECT THAT TO HAPPEN WITH SOUTHWEST FLOW ALOFT.
QUESTION THEN BECOMES LOCATION OF BOUNDARY NEXT 48 HOURS. WITH SOME
MOVEMENT CURRENTLY AND APPROACHING WAVE...THINK IT SHOULD CONTINUE
INTO THE CWA OVERNIGHT. EXPECT THUNDERSTORMS OF SCATTERED NATURE
EARLY AND THEN MAY BE A LITTLE MORE WIDESPREAD OVERNIGHT. BETTER
PARAMETERS SEEM TO BE EAST OF CWA AS FAR AS WIDESPREAD RAIN GOES.
PRECIPITABLE WATER LOOKS TO RANGE FROM 1.4 IN WESTERN CWA TO 2 IN
EASTERN NEB. WARM ADVECTION DID NOT LOOK THAT IMPRESSIVE OVER CWA
ACCORDING TO MESOETA TEMP ADVECTION AND ISENTROPIC CHARTS. ALSO WE
APPEAR TO BE IN RIGHT ENTRANCE REGION OF JET BUT IT IS NOT THAT
STRONG ACCORDING TO PROFILERS AND AGAIN WOULD HAVE MORE OF AN
AFFECT TO OUR NORTHEAST. TIME/HEIGHT SERIES OF OMEGA SHOWED VERY
WEAK LIFT OVERALL BEARING OUT WEAK LOW LEVEL WARM ADVECTION AND WEAK
UPPER FORCING.

OVERALL PLAN TO KEEP NIGHTTIME POPS GOING NEXT TWO OR THREE NIGHTS
WITH SURFACE BOUNDARY AND EMBEDDED SHORTWAVES RIDING THROUGH.
PLAN ON KEEPING EXTENDED DRY FOR NOW ALTHOUGH NEXT SURFACE SYSTEM
DUE IN TUES NIGHT OR WED MAY WARRANT POPS WITH LATER ISSUANCES.

.GID...NONE.

EWALD

In the hours before

Local storm report, Aug 21, 9:42 PM CDT, 4 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
942 PM CDT WED AUG 21 2002

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

0845 PM    EDGAR                     NE   .75 INCH HAIL
08/21/02   CLAY                           REPORTED BY EMERGENCY
                                          MANAGEMENT.
Local storm report, Aug 21, 11:30 PM CDT, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1130 PM CDT WED AUG 21 2002

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

0925 PM    EDGAR                     NE   WIND DAMAGE
08/21/02   CLAY                           SEVERAL LARGE TREE
                                          LIMBS DOWNED. REPORTED
                                          BY LAW ENFORCEMENT
                                          OFFICIAL.

0930 PM    ONG                       NE   WIND DAMAGE
08/21/02   CLAY                           SEVERAL LARGE TREE
                                          LIMBS DOWNED. REPORTED
                                          BY LAW ENFORCEMENT
                                          OFFICIAL.

0930 PM    ONG                       NE   1 INCH HAIL
08/21/02   CLAY                           REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 1:38 AM CDTSevere Thunderstorm WarningGIDPhelps52 min
Aug 22, 5:52 PM CDTSevere Thunderstorm WarningGIDDawson53 min
Aug 22, 6:25 PM CDTSevere Thunderstorm WarningGIDGosper65 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.