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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

 
 
Event Summary

As an upper-level disturbance approached from the west, supercell thunderstorms erupted ahead of the dryline during the afternoon and evening hours of April 30, 2012.  Most of the thunderstorms affected the southern Texas Panhandle, producing several reports of very large hail.  In fact, golfball to tennis ball size hail was common with the most severe storms, but the largest hailstone reported fell just north of Lelia Lake in Donley County and had a diameter of 3 inches.  An EF-0 tornado also occurred 7 miles south of Wellington around 8:30 p.m., making it the second tornado of the year in the Amarillo forecast area.  As the supercells moved over the same areas, they produced very heavy rain, which resulted in flash flooding in Wellington and Hedley.  If you have any hail pictures that you would like to share, please e-mail us at sr-ama.webmaster@noaa.gov or share them with us on Facebook.

 
April 30 Storm Reports Storm Total Precipitation
April 30 Severe Weather Reports Storm Total Precipitation
 
RADAR IMAGES
 
STORM IMAGES
 
2-3 inch hail at Lelia Lake. (Courtesy of Wesley Luginbyhl) Supercell approaching Clarendon. (Courtesy Chris Adkins) Funnel cloud near Hedley. (Courtesy Erik Fox)
Clarendon, TX hail. (Courtesy Britton Hall) Hail 4 miles northeast of Clarendon. (Courtesy of Jeremy and Felicia Powell) Hail 3 miles north of Hedley. (Courtesy of Blain and Tanya)
 
Tornado 7 miles south of Wellington. (Courtesy of Brian Morganti) Tornado 7 miles south of Wellington. (Courtesy of Brian Morganti)  
 
STORM REPORTS
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
1124 PM CDT WED MAY 02 2012

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

0514 PM     HAIL             AMARILLO                35.20N 101.82W
04/30/2012  E0.88 INCH       POTTER             TX   EMERGENCY MNGR

0519 PM     HAIL             7 SW AMARILLO           35.13N 101.91W
04/30/2012  E0.75 INCH       RANDALL            TX   PUBLIC

0520 PM     HAIL             8 S AMARILLO            35.09N 101.82W
04/30/2012  E0.88 INCH       RANDALL            TX   TRAINED SPOTTER

0521 PM     HAIL             6 SW AMARILLO           35.14N 101.91W
04/30/2012  E1.00 INCH       RANDALL            TX   NWS EMPLOYEE

0524 PM     HAIL             6 SW AMARILLO           35.14N 101.91W
04/30/2012  E1.00 INCH       RANDALL            TX   NWS EMPLOYEE

0525 PM     HAIL             AMARILLO                35.20N 101.82W
04/30/2012  E1.00 INCH       POTTER             TX   AMATEUR RADIO

0526 PM     HAIL             7 SW AMARILLO           35.13N 101.91W
04/30/2012  E1.50 INCH       RANDALL            TX   PUBLIC

0529 PM     HAIL             10 SW AMARILLO          35.10N 101.94W
04/30/2012  E1.00 INCH       RANDALL            TX   STORM CHASER

0533 PM     HAIL             6 WSW AMARILLO          35.18N 101.93W
04/30/2012  E0.88 INCH       RANDALL            TX   NWS EMPLOYEE

0533 PM     HAIL             6 SW AMARILLO           35.14N 101.89W
04/30/2012  E1.00 INCH       RANDALL            TX   TRAINED SPOTTER

0535 PM     HAIL             6 WSW AMARILLO          35.17N 101.92W
04/30/2012  E1.00 INCH       RANDALL            TX   TRAINED SPOTTER

0535 PM     HAIL             10 SW AMARILLO          35.10N 101.94W
04/30/2012  E1.25 INCH       RANDALL            TX   STORM CHASER

0545 PM     HAIL             5 S AMARILLO            35.13N 101.82W
04/30/2012  E1.50 INCH       RANDALL            TX   STORM CHASER

0555 PM     HAIL             5 SSW AMARILLO          35.14N 101.85W
04/30/2012  E1.75 INCH       RANDALL            TX   PUBLIC

0620 PM     HAIL             LAKE MCCLELLAN          35.22N 100.87W
04/30/2012  E1.00 INCH       GRAY               TX   STORM CHASER

0634 PM     HAIL             CLAUDE                  35.11N 101.36W
04/30/2012  E1.50 INCH       ARMSTRONG          TX   PUBLIC

0635 PM     HAIL             3 SE CLAUDE             35.08N 101.32W
04/30/2012  E1.25 INCH       ARMSTRONG          TX   STORM CHASER

0636 PM     HAIL             2 W CLAUDE              35.11N 101.40W
04/30/2012  E1.75 INCH       ARMSTRONG          TX   TRAINED SPOTTER

0636 PM     HAIL             CLAUDE                  35.11N 101.36W
04/30/2012  E0.88 INCH       ARMSTRONG          TX   NWS EMPLOYEE

0638 PM     HAIL             CLAUDE                  35.11N 101.36W
04/30/2012  E1.75 INCH       ARMSTRONG          TX   TRAINED SPOTTER

0638 PM     HAIL             CLAUDE                  35.11N 101.36W
04/30/2012  E1.75 INCH       ARMSTRONG          TX   LAW ENFORCEMENT

0641 PM     HAIL             CLAUDE                  35.11N 101.36W
04/30/2012  E1.50 INCH       ARMSTRONG          TX   STORM CHASER

0646 PM     HAIL             2 N HOWARDWICK          35.06N 100.91W
04/30/2012  E1.00 INCH       DONLEY             TX   PUBLIC

0648 PM     HAIL             6 N HOWARDWICK          35.12N 100.91W
04/30/2012  E1.25 INCH       DONLEY             TX   BROADCAST MEDIA

            QUARTER TO HALF DOLLAR SIZE HAIL REPORTED.

0649 PM     HAIL             CLARENDON               34.94N 100.89W
04/30/2012  E1.75 INCH       DONLEY             TX   LAW ENFORCEMENT

0654 PM     HAIL             3 SE CLAUDE             35.08N 101.32W
04/30/2012  M1.00 INCH       ARMSTRONG          TX   STORM CHASER

0655 PM     HAIL             5 S CLARENDON           34.86N 100.89W
04/30/2012  E1.75 INCH       DONLEY             TX   STORM CHASER

0655 PM     HAIL             4 S CLARENDON           34.88N 100.89W
04/30/2012  E1.50 INCH       DONLEY             TX   STORM CHASER

0658 PM     HAIL             CLARENDON               34.94N 100.89W
04/30/2012  E1.75 INCH       DONLEY             TX   TRAINED SPOTTER

0658 PM     HAIL             CLARENDON               34.93N 100.89W
04/30/2012  E1.75 INCH       DONLEY             TX   CO-OP OBSERVER

            WITH 0.21 INCHES OF RAIN

0700 PM     HAIL             2 N LELIA LAKE          34.93N 100.77W
04/30/2012  M3.00 INCH       DONLEY             TX   TRAINED SPOTTER

            LARGEST HAIL STONE MEASURED 2.5 INCHES BY 3.5 INCHES.

0700 PM     HAIL             9 SSW WASHBURN          35.06N 101.63W
04/30/2012  E0.88 INCH       RANDALL            TX   PUBLIC

0705 PM     HAIL             9 SSE WASHBURN          35.06N 101.51W
04/30/2012  E0.88 INCH       ARMSTRONG          TX   PUBLIC

0709 PM     HAIL             3 E CLARENDON           34.94N 100.84W
04/30/2012  E2.50 INCH       DONLEY             TX   LAW ENFORCEMENT

0714 PM     HAIL             SE LELIA LAKE           34.90N 100.77W
04/30/2012  E2.00 INCH       DONLEY             TX   STORM CHASER

0720 PM     HAIL             5 E CLAUDE              35.11N 101.27W
04/30/2012  E1.00 INCH       ARMSTRONG          TX   AMATEUR RADIO

0726 PM     HAIL             1 W GOODNIGHT           35.03N 101.20W
04/30/2012  E1.75 INCH       ARMSTRONG          TX   STORM CHASER

0730 PM     HAIL             7 N HOWARDWICK          35.14N 100.91W
04/30/2012  E1.25 INCH       DONLEY             TX   PUBLIC

0730 PM     HAIL             LELIA LAKE              34.90N 100.77W
04/30/2012  E2.50 INCH       DONLEY             TX   PUBLIC

0740 PM     HAIL             6 E GOODNIGHT           35.03N 101.08W
04/30/2012  E1.00 INCH       DONLEY             TX   AMATEUR RADIO

0745 PM     TSTM WND GST     1 ENE MCLEAN            35.24N 100.57W
04/30/2012  M59 MPH          GRAY               TX   MESONET

0749 PM     HAIL             3 NNE HEDLEY            34.91N 100.64W
04/30/2012  E2.75 INCH       DONLEY             TX   TRAINED SPOTTER

            BASEBALL SIZE HAIL FELL FOR FIVE MINUTES. MULTIPLE
            VEHICLE WINDSHIELDS AND WINDOWS SMASHED ACCORDING TO
            THIS REPORT.

0755 PM     HAIL             10 NW CLARENDON         35.04N 101.02W
04/30/2012  E2.00 INCH       DONLEY             TX   BROADCAST MEDIA

            THIS HAIL FELL IN ASHTOLA.

0756 PM     HAIL             4 W CLARENDON           34.94N 100.96W
04/30/2012  E2.50 INCH       DONLEY             TX   BROADCAST MEDIA

0757 PM     HAIL             1 NW CLARENDON          34.95N 100.90W
04/30/2012  E2.50 INCH       DONLEY             TX   STORM CHASER

0757 PM     HAIL             CLARENDON               34.94N 100.89W
04/30/2012  E1.75 INCH       DONLEY             TX   BROADCAST MEDIA

0806 PM     HAIL             CLARENDON               34.94N 100.89W
04/30/2012  E1.50 INCH       DONLEY             TX   STORM CHASER

0812 PM     HAIL             HOWARDWICK              35.04N 100.91W
04/30/2012  E1.75 INCH       DONLEY             TX   TRAINED SPOTTER

0820 PM     HAIL             5 NE CLARENDON          34.99N 100.83W
04/30/2012  E1.75 INCH       DONLEY             TX   TRAINED SPOTTER

0830 PM     HAIL             6 N HOWARDWICK          35.12N 100.91W
04/30/2012  E1.25 INCH       DONLEY             TX   PUBLIC

0830 PM     TORNADO          7 S WELLINGTON          34.75N 100.21W
04/30/2012                   COLLINGSWORTH      TX   STORM CHASER

            PRELIMINARY INFORMATION. TORNADO BEGAN 7.25 MILES SOUTH
            OF WELLINGTON AND TRAVELED 1.25 MILES. PATH WIDTH WAS
            150 YARDS. TORNADO BEGAN AT 0830 PM AND ENDED AT 0833
            PM. TORNADO HAS BEEN PRELIMINARILY RATED AS EF-0 WITH
            MAXIMUM WIND SPEEDS AROUND 75 MPH. NO DAMAGE OR INJURIES
            WERE REPORTED.

0832 PM     TSTM WND GST     WELLINGTON              34.85N 100.21W
04/30/2012  E63 MPH          COLLINGSWORTH      TX   LAW ENFORCEMENT

            ESTIMATED 60 TO 65 MPH WINDS

0834 PM     HAIL             WELLINGTON              34.85N 100.21W
04/30/2012  E1.75 INCH       COLLINGSWORTH      TX   TRAINED SPOTTER

0849 PM     HAIL             WELLINGTON              34.85N 100.21W
04/30/2012  E1.75 INCH       COLLINGSWORTH      TX   TRAINED SPOTTER

0850 PM     HAIL             WELLINGTON              34.85N 100.21W
04/30/2012  E1.75 INCH       COLLINGSWORTH      TX   LAW ENFORCEMENT

0850 PM     TSTM WND GST     WELLINGTON              34.85N 100.21W
04/30/2012  E60 MPH          COLLINGSWORTH      TX   LAW ENFORCEMENT

0850 PM     HAIL             WELLINGTON              34.85N 100.21W
04/30/2012  E1.75 INCH       COLLINGSWORTH      TX   COUNTY OFFICIAL

            SOME STREET FLOODING REPORTED AS WELL

0900 PM     HAIL             LELIA LAKE              34.90N 100.77W
04/30/2012  E1.75 INCH       DONLEY             TX   PUBLIC

0911 PM     FLASH FLOOD      WELLINGTON              34.85N 100.21W
04/30/2012                   COLLINGSWORTH      TX   STORM CHASER

            CITY STREET FLOODED UNDER 8 IN OF WATER

0928 PM     FLASH FLOOD      WELLINGTON              34.85N 100.21W
04/30/2012                   COLLINGSWORTH      TX   LAW ENFORCEMENT

            NUMEROUS HOUSES...BUILDINGS AND ROADS FLOODED. HIGHWAY
            62 FLOODED BETWEEN DODSON AND HOLLIS.

1000 PM     HAIL             1 S DODSON              34.75N 100.02W
04/30/2012  E1.00 INCH       COLLINGSWORTH      TX   PUBLIC

            MOSTLY NICKEL TO QUARTER SIZE