Severe Weather Assignment – Jordan Roebuck
Weather report via Storm Prediction Center:
(http://www.spc.noaa.gov/products/watch/ww0102.html)
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 102
NWS STORM PREDICTION CENTER NORMAN OK
440 PM EDT FRI MAR 23 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST ILLINOIS
NORTHWEST AND CENTRAL INDIANA
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 440 PM UNTIL
1000 PM EDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES NORTHWEST
OF DANVILLE ILLINOIS TO 20 MILES NORTHEAST OF INDIANAPOLIS
INDIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 101...
DISCUSSION...STRONG/SEVERE STORMS ARE MOVING NEWD TOWARD NERN IL AND
WEST CENTRAL IN AT THIS TIME...ON THE LEADING EDGE OF DYNAMIC
FORCING ASSOCIATED WITH A COLD UPPER LOW MOVING EWD OVER ERN MO.
SATELLITE IMAGERY INDICATES AN ARC OF CLEARING IN ADVANCE OF THE
STORMS WHICH IS ALLOWING HEATING/DESTABILIZATION TO OCCUR IN THE
DOWNSTREAM ENVIRONMENT. POTENTIAL FOR LARGE HAIL AND DAMAGING WIND
GUSTS WILL CONTINUE WITH THESE STORMS INTO THE EVENING HOURS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM
MOTION VECTOR 21035.
...WEISS
Hazard
Likelihood
Tornadoes
Low
EF2+ Tornadoes
Very Low
Severe Wind
Moderate
65 kt+ Wind
Low
Severe Hail
Moderate
2"+ Hail
Low
Hazard
Likelihood
Tornadoes
Low
EF2+ Tornadoes
Very Low
Severe Wind
Moderate
65 kt+ Wind
Low
Severe Hail
Moderate
2"+ Hail
Low
Hazard
Likelihood
Tornadoes
Low
EF2+ Tornadoes
Very Low
Severe Wind
Moderate
65 kt+ Wind
Low
Severe Hail
Moderate
2"+ Hail
Low
Hazard
Likelihood
Tornadoes
Low
EF2+ Tornadoes
Very Low
Severe Wind
Moderate
65 kt+ Wind
Low
Severe Hail
Moderate
2"+ Hail
Low
Severe Weather Watch #102:
Satellite Image: (via noaa.gov)
Reflection:
Basically what the SPC Watch is indicating is that there is going to be a severe thunderstorm for the
regions of Northwest Illinois and Northwest/central Indiana. It will start approximately in the afternoon
on Friday, March 23rd, and may last until 10:00 pm tonight.
Severe weather watches and websites such as these can really give us a more insight and information
about incoming storms in our area. Sometimes the news isn’t always up-to-date or accurate, so we have
to rely on other sources, such as these live satellite images and alerts. I usually don’t know about a
storm until it’s right up above me or it starts raining, but I am going to utilize these services that are
available to us people now, to see when big storms are going to hit. This is also useful in planning
vacations or trips to places where you are not certain about the weather conditions. This is very helpful
in knowing what to pack, what to wear, etc.