Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 132, NWS Hastings, NE

July 22, 2000Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 22, 2000, 6:43 PM CDT for Dawson County, Nebraska. It was in force for 47 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 22, 2000, 6:43 PM CDT (23:43 UTC)
Expired: Jul 22, 2000, 7:30 PM CDT
In force: 47 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Dawson County, NE

The radar

The Grand Island radar (KUEX), 131 km from the middle of the area, began a volume at 23:45 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

Time	Report	Where
Jul 22, 7:01 PM CDT	Hail 1.75	Cozad, NE
Jul 22, 7:07 PM CDT	Hail 0.75	Lexington, NE
Jul 22, 7:31 PM CDT	Hail 1	Darr, 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.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.7 hours before the alert went out and 293 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1354 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 22, 2:00 PM CDT, 4 hours 43 minutes earlier.

Area forecast discussion, Jul 22, 2:00 PM CDT, 4 hours 43 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
200 PM CDT SAT JUL 22 2000

...TSRA CHCS REMAIN MAIN CONCERN...ALTHO NOT AS MUCH AS PAST WEEK...

12Z UAA HAD UPPER RIDGE AMPLIFYING THRU HI PLAINS IN RESPONSE TO
FAIRLY LARGE LO PUSHING INTO THE NW US. WV SVRL IMPRESSIVE SHORT
WAVES THRU PLAINS IN NW FLOW...ONE TO EXIT CWA THIS AFTN IS MCV
FROM LAST NIGHTS CONVECTION...ANOTHER DROPPING INTN NRN SD ATT MAY
BE A PLAYER IN OUR WX TONIGHT. H85 MOISTURE IS POOLED FROM THE HI
PLAINS INTO NRN TX AND ON INTO THE GULF COAST STATES. HWVR...SOME
POCKETS OF 10C DWPTS STILL FOUND IN CNTRL/NRN PLAINS. AT THE SFC...
HI PRES IS CENTERED TO OUR NE W/ WK FRONT DRAPED FROM CNTRL SD THRU
CNTRL NEB INTO ERN KS/MO. TONGUE OF 60-65F DWPTS SHOWS UP ON MORNING
ANALYSIS ALONG THIS FRONT THRU CWA.

MAIN QUESTION TONIGHT IS WHETHER SUBSIDENCE IN BEHIND EXITING MCV
WILL SQUELCH CONVECTION THAT FORMS IN ADVANCE OF DKTS VORT AS IT
DROPS DOWN ALONG THAT FRONT. W/ PLENTY OF SUN CNTRL SD INTO NC NEB
EXPECT ACTIVITY TO FIRE THIS AFTN AND DROP NEARLY STRAIGHT SOUTH
AGAIN. WL MONITOR SAT/RADAR TRENDS UP TO ISSUANCE...BUT INITIAL
THOUGHT IS TO LEAVE CURRENT 20/30 POPS RUNNING...ALTHO I/M NOT SURE
WHO HAS THE BEST SHOT YET.

OTHERWISE...LOWS HAVE BEEN CONSISTENTLY IN THE M50S/L60S THE PAST
SVRL NIGHTS & SEE NO REASON TO DEVIATE FROM GUIDANCE WHICH SUGGESTS
THE SAME TONIGHT. W/ RIDGE GRADUALLY BUILDING EAST...WX REGIME TO
CHANGE AS CANADIAN SFC HI SHIFT EAST AND DECENT SOUTHERLY FLOW
BRINGS HIGHS CLOSE TO NORMAL SUMMERTIME VALUES. H85 TEMPS SUPPORT
MID 80S TO 90ISH IN SW AREAS WHICH IS MORE OR LESS IN LINE W/ GUID.

AVN/NGM BOTH BRING QPF BACK LATE SUN NIGHT INTO MONDAY AS THEY ARE
FASTER THAN ETA IN BRINGING STRONG WV OUT OVER TOP OF RIDGE. ETA
HOLDS OFF FOR A LATE MON/MON NIGHT EVENT. FOR NOW...WILL GO W/ SCT
POPS ON MON. TOMR NIGHT TO BE MORE MILD AS SOUTHERLY FLOW CONTS TO
FEED IN WARMER AIR...GENERALLY IN THE 60S. WL RANGE MON IN THE 80S
W/ ANTICIPATED MIX OF SUN/CLDS.

WL CONT TSRA CHCS INTO TUE EXTENDED AS FRONT TO BE DRAPED THRU AREA
AFTER MON/MONDAY NIGHT SYS. PAST THAT...ITS A CRAP SHOOT. MRF SETS
FRONT UP IN DKTS...BUT DOESN/T BUILD UPPER RIDGE IN ALL THAT STRONG.
CONSENSUS OF MEDIUM RANGE MDLS SEEMS TO PUT AREA IN PRETTY DECENT
PLACE...RELATIVE TO UPPER HI...TO SEE MCS ACTIVITY. WL FOLLOW OAX
AND LBFS LEAD FROM OVERNIGHT EXTENDED PACKAGE AND KEEP CHCS IN THRU
EXTENDED. TEMPS TO BE PRETTY CLOSE TO SEASONAL W/ HIGHS NEAR 90
AND LOWS IN THE 60S.

.GID...NONE.

DEG

In the hours before

Local storm report, Jul 22, 5:25 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
525 PM CDT SAT JUL 22 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....
j
0518 PM    3 SE SPALDING             NE    1 INCH HAIL
07/22/00   GREELEY

Special weather statement, Jul 22, 5:37 PM CDT, 1 hour 6 minutes before

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-230330-

SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS
...UPDATED...
NATIONAL WEATHER SERVICE HASTINGS NE
537 PM CDT SAT JUL 22 2000

...SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS EVENING ACROSS
PARTS OF SOUTH CENTRAL NEBRASKA...

NUMEROUS THUNDERSTORMS WILL MOVE FROM NORTHERN NEBRASKA SOUTH INTO
CENTRAL AND SOUTH CENTRAL NEBRASKA THIS EVENING.  SOME OF THESE
STORMS HAVE ALREADY BEEN SEVERE...AND PRODUCED LARGE HAIL DURING THE
LATE AFTERNOON HOURS.

THIS TREND IS EXPECTED TO CONTINUE THROUGH MIDNIGHT...WITH A FEW
SEVERE THUNDERSTORMS TRACKING FROM NORTH TO SOUTH.  LARGE HAIL WILL
BE THE MAIN THREAT FROM THESE STORMS...HOWEVER DAMAGING WINDS MAY
ALSO OCCUR.  ALTHOUGH THE ENVIRONMENT IS NOT IDEAL FOR
TORNADOES...SPOTTERS SHOULD ALSO BE ON THE LOOKOUT FOR SIGNS OF
ROTATION IN THE STORMS...SUCH AS ROTATING WALL CLOUDS...FUNNEL CLOUDS
AND TORNADOES.

DDN

Local storm report, Jul 22, 6:34 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
634 PM CDT SAT JUL 22 2000

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 7:00 PM CDT	Severe Thunderstorm Warning	GID	Valley	60 min
Jul 21, 7:37 PM CDT	Tornado Warning	GID	Valley	38 min
Jul 21, 8:02 PM CDT	Severe Thunderstorm Warning	GID	Sherman	58 min
Jul 21, 8:32 PM CDT	Severe Thunderstorm Warning	GID	Buffalo	58 min
Jul 21, 9:15 PM CDT	Severe Thunderstorm Warning	GID	Hall	45 min
Jul 21, 9:41 PM CDT	Severe Thunderstorm Warning	GID	Adams	49 min
Jul 21, 10:30 PM CDT	Severe Thunderstorm Warning	GID	Furnas	45 min
Jul 22, 5:04 PM CDT	Severe Thunderstorm Warning	GID	Greeley	41 min
Jul 22, 5:50 PM CDT	Severe Thunderstorm Warning	GID	Dawson	55 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000 Every severe thunderstorm warning in 2000

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.