Jun 4, 2015 0100 UTC Day 1 Convective Outlook
Updated: Thu Jun 4 01:05:06 UTC 2015 (20150604 0100Z Day 1 shapefile | 20150604 0100Z Day 1 KML)
Probabilistic to Categorical Outlook Conversion Table
Categorical Graphic
20150604 0100 UTC Day 1 Outlook Graphic
Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
ENHANCED 86,482 4,246,726 Denver, CO...Aurora, CO...Lakewood, CO...Fort Collins, CO...Thornton, CO...
SLIGHT 104,295 3,061,723 Omaha, NE...Colorado Springs, CO...Lincoln, NE...Topeka, KS...St. Joseph, MO...
MARGINAL 261,086 10,353,011 Jacksonville, FL...Kansas City, MO...Wichita, KS...Salt Lake City, UT...Overland Park, KS...
Probabilistic Tornado Graphic
20150604 0100 UTC Day 1 Tornado Probabilities Graphic
Probability of a tornado within 25 miles of a point.
Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point.
Day 1 Tornado Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
10 % 15,801 3,060,619 Denver, CO...Aurora, CO...Lakewood, CO...Fort Collins, CO...Thornton, CO...
5 % 93,022 1,611,782 Salina, KS...Manhattan, KS...Castle Rock, CO...Ken Caryl, CO...Kearney, NE...
2 % 52,562 2,478,458 Omaha, NE...Colorado Springs, CO...Lincoln, NE...Topeka, KS...St. Joseph, MO...
Probabilistic Damaging Wind Graphic
20150604 0100 UTC Day 1 Damaging Wind Probabilities Graphic
Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point.
Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point.
Day 1 Wind Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
30 % 48,605 628,732 Manhattan, KS...Grand Island, NE...Kearney, NE...North Platte, NE...Hastings, NE...
15 % 142,340 6,705,147 Denver, CO...Omaha, NE...Colorado Springs, CO...Aurora, CO...Lincoln, NE...
5 % 261,158 10,371,917 Jacksonville, FL...Kansas City, MO...Wichita, KS...Salt Lake City, UT...Overland Park, KS...
Probabilistic Large Hail Graphic
20150604 0100 UTC Day 1 Large Hail Probabilities Graphic
Probability of hail 1" or larger within 25 miles of a point.
Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point.
Day 1 Hail Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SIG SEVERE 54,931 3,975,052 Denver, CO...Aurora, CO...Lakewood, CO...Fort Collins, CO...Thornton, CO...
30 % 65,935 3,995,547 Denver, CO...Aurora, CO...Lakewood, CO...Fort Collins, CO...Thornton, CO...
15 % 124,974 3,337,703 Omaha, NE...Colorado Springs, CO...Lincoln, NE...Topeka, KS...St. Joseph, MO...
5 % 150,334 5,813,331 Kansas City, MO...Wichita, KS...Overland Park, KS...Kansas City, KS...Olathe, KS...
   SPC AC 040105

   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0805 PM CDT WED JUN 03 2015

   VALID 040100Z - 041200Z

   ...THERE IS AN ENH RISK OF SVR TSTMS FROM SERN WY AND NERN CO ESEWD
   ACROSS SRN NEB/NRN KS...

   ...THERE IS A SLGT RISK OF SVR TSTMS FROM WY/CO ESEWD TO THE MID MO
   VALLEY...

   ...THERE IS A MRGL RISK OF SVR TSTMS FROM PORTIONS OF THE
   INTERMOUNTAIN W EWD ACROSS THE MID MO VALLEY...

   ...THERE IS A MRGL RISK OF SVR TSTMS OVER PORTIONS OF THE SERN
   STATES...

   ...SUMMARY...
   SEVERE STORMS WITH VERY LARGE HAIL AND A FEW TORNADOES WILL CONTINUE
   OVER PARTS OF COLORADO AND WYOMING AND INTO SOUTHERN NEBRASKA AND
   PARTS OF KANSAS THIS EVENING.  OTHER MORE ISOLATED SEVERE STORMS
   WILL BE POSSIBLE TONIGHT OVER SURROUNDING LOCATIONS FROM THE CENTRAL
   HIGH PLAINS TO THE MIDDLE MISSOURI VALLEY.  FINALLY...A STRONG STORM
   OR TWO MAY PERSIST FOR ANOTHER HOUR OR TWO OVER PARTS OF THE
   SOUTHEAST.

   ...CENTRAL AND NRN HIGH PLAINS INTO THE KS/NEB VICINITY...
   STORMS CONTINUE TO INCREASE ACROSS PORTIONS OF S CENTRAL MT SEWD
   ACROSS WY INTO NERN CO...WHILE OTHER STRONG/SEVERE STORMS CONTINUE
   TO EVOLVE OVER THE CENTRAL KS VICINITY.  WITH LOW-LEVEL SELYS ACROSS
   THE CENTRAL/NRN HIGH PLAINS BENEATH MODERATE MID-LEVEL SWLYS...SHEAR
   SUPPORTIVE OF SUPERCELLS -- AND ASSOCIATED SEVERE RISK -- REMAINS IN
   PLACE.  WITH AMPLE CAPE ALSO NOTED...RISK FOR HAIL AND DAMAGING
   WINDS ALONG WITH A COUPLE OF TORNADOES WILL CONTINUE WELL INTO THE
   EVENING ACROSS THIS REGION -- WHERE TORNADO WATCH 251 REMAINS IN
   EFFECT.

   FARTHER E/SE INTO THE KS VICINITY...ISOLATED SUPERCELLS ARE ONGOING
   INVOF VARIOUS LOW-LEVEL BOUNDARIES EVIDENT IN SURFACE ANALYSIS AND
   VISIBLE SATELLITE LOOP.  WHILE WEAKER SHEAR IS EVIDENT ACROSS THIS
   REGION AS COMPARED TO AREAS FARTHER W...A MORE STRONGLY UNSTABLE
   AIRMASS IN PLACE /MIXED-LAYER CAPE IN THE 2000 TO 3000 J/KG RANGE/
   WILL SUPPORT A CONTINUED INCREASE IN CONVECTION.  EVENTUAL UPSCALE
   GROWTH INTO AN MCS MAY OCCUR LATER THIS EVENING...PERHAPS AS STORMS
   DEVELOPING OVER THE HIGH PLAINS SPREAD ESEWD AND MERGE WITH ONGOING
   KS STORMS.  AS A RESULT...HAIL/ISOLATED TORNADO RISK COULD
   TRANSITION TO INCLUDE A SOMEWHAT MORE WIDESPREAD RISK FOR DAMAGING
   WINDS.

   ..GOSS.. 06/04/2015

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