Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 350, NWS Hastings, NE

July 15, 20084 counties in Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 15, 2008, 6:16 PM CDT for 4 counties in Nebraska. It was in force for 46 hr. 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 15, 2008, 6:16 PM CDT (23:16 UTC)
Expired: Jul 17, 2008, 4:15 PM CDT
In force: 46 hr
Issued by: NWS Hastings, NE
Area: Storm-based polygon

Counties Greeley County, NE, Hall County, NE, Howard County, NE, Valley County, NE

The radar

The Grand Island radar (KUEX), 111 km from the middle of the area, began a volume at 23:18 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.

Issued	Product	Office	Lasted
Jul 15, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.3 hours before the alert went out and 166 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: 1303 J/kg
Mixed-layer CIN: -324 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

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 15, 2:09 PM CDT, 4 hours 7 minutes earlier.

Area forecast discussion, Jul 15, 2:09 PM CDT, 4 hours 7 minutes before

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Hazardous weather outlook, Jul 15, 4:35 PM CDT, 1 hour 41 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HASTINGS NE
435 PM CDT TUE JUL 15 2008

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
161200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
435 PM CDT TUE JUL 15 2008

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

.DAY ONE...TONIGHT.

SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THE EVENING
AND INTO TONIGHT...ESPECIALLY ALONG AND NORTH OF INTERSTATE 80 IN
NEBRASKA. THE MAIN HAZARDS FROM THE STORMS WILL BE DAMAGING WINDS
OF 60 MPH...QUARTER SIZE HAIL AND LOCALLY HEAVY RAINFALL OF 1 TO 2
INCHES WHICH MAY CAUSE FLOODING PROBLEMS.

SOUTH OF INTERSTATE 80 AND IN NORTH CENTRAL KANSAS...ISOLATED TO
SCATTERED THUNDERSTORMS ARE POSSIBLE THROUGH TONIGHT BUT SEVERE
WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS WILL RETURN IN EARNEST TO THE FORECAST AREA THURSDAY
AND FRIDAY AS A COLD FRONT SLIDES SOUTHEAST INTO THE REGION. THIS
FRONT WILL LIKELY TRIGGER SEVERE THUNDERSTORMS BY THURSDAY
EVENING...AFTER WHICH THE STORMS WILL ORGANIZE AND MOVE SOUTHEAST
THROUGH THE NIGHT THURSDAY. LARGE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH ARE EXPECTED BY THURSDAY EVENING...AND THEN
THROUGH THE NIGHT. WIDESPREAD RAINFALL IS LIKELY AS WELL...WITH
MANY LOCATIONS LIKELY RECEIVING 1 TO 2 INCHES OF RAIN. AS MUCH AS
3 INCHES OF RAIN IS POSSIBLE...WHICH MAY CAUSE FLASH FLOODING
PROBLEMS.

THE RISK FOR THUNDERSTORMS WILL CONTINUE FRIDAY AS THE FRONT SAGS
ITS WAY THROUGH THE REGION. THERE MAY SOME STRONG TO SEVERE
THUNDERSTORMS FRIDAY AFTERNOON AND EVENING. THERE IS ALSO A CHANCE
FOR THUNDERSTORMS SATURDAY AND SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING ALONG AND NORTH OF
INTERSTATE 80...PRIMARILY FOR REPORTS OF HIGH WIND. SPOTTER
ORGANIZATIONS SHOULD BE ALERT TO THE POTENTIAL FOR SEVERE WEATHER
THURSDAY....BY CONTINUING TO MONITOR THE WEATHER CLOSELY THE NEXT
COUPLE OF DAYS.

&&

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

In the hours before

Local storm report, Jul 15, 4:20 PM CDT, 1 hour 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
420 PM CDT TUE JUL 15 2008

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

0900 PM     HAIL             GILTNER                 40.77N 98.15W
07/11/2008  E1.00 INCH       HAMILTON           NE   PUBLIC

&&

KING

Special weather statement, Jul 15, 5:56 PM CDT, 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
556 PM CDT TUE JUL 15 2008

NEZ040-152345-
GREELEY-
556 PM CDT TUE JUL 15 2008

...THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR...

  NORTHERN GREELEY COUNTY IN CENTRAL NEBRASKA

AT 552 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
SEVERE THUNDERSTORM 8 MILES NORTH OF ERICSON...OR 24 MILES NORTHEAST
OF ORD...AND MOVING SOUTHEAST AT 25 MPH.

* THE THUNDERSTORM WILL BE NEAR...
  SPALDING BY 640 PM CDT

QUARTER SIZE HAIL IS EXPECTED WITH THIS STORM.

PEOPLE IN NORTHERN GREELEY COUNTY...SHOULD MONITOR THE WEATHER
SITUATION CLOSELY. A WARNING MAY BE NEEDED IF THE STORMS MOVE INTO
THE AREA. BE READY TO SEEK SHELTER IF SEVERE WEATHER THREATENS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 7:02 PM CDT	Severe Thunderstorm Warning	GID	Dawson, Gosper	58 min
Jul 14, 7:48 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Dawson, Gosper, Kearney, Phelps, Sherman and 1 more	42 min
Jul 14, 8:29 PM CDT	Severe Thunderstorm Warning	GID	Adams, Buffalo, Hall, Howard, Kearney, Phelps and 1 more	30 min
Jul 14, 11:54 PM CDT	Areal Flood Advisory	GID	Dawson	4 hr
Jul 15, 12:41 AM CDT	Severe Thunderstorm Warning	GID	Dawson, Gosper	49 min
Jul 15, 3:45 AM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Nance, Polk, York	60 min
Jul 15, 4:51 AM CDT	High Wind Warning	GID	Fillmore, Polk, York	93 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008 Every severe thunderstorm warning in 2008

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.