Alert archive / Alaska / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 2, NWS Fairbanks, AK

June 3, 2010

NWS Fairbanks, AK issued this severe thunderstorm warning at Jun 3, 2010, 5:15 PM AKDT. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 3, 2010, 5:15 PM AKDT (01:15 UTC)
Expired: Jun 3, 2010, 5:45 PM AKDT
In force: 30 min
Issued by: NWS Fairbanks, AK
Area: Storm-based polygon

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 Fairbanks, AK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 3, 1:49 PM AKDT, 3 hours 26 minutes earlier.

Area forecast discussion, Jun 3, 1:49 PM AKDT, 3 hours 26 minutes before

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
149 PM AKDT THU JUN 3 2010

.DISCUSSION...500MB PATTERN HAS A RIDGE EXTENDING FROM CENTRAL
CANADA UP TO THE MACKENZIE DELTA AND THEN TO THE ALASKAN SIDE OF
THE ARCTIC OCEAN. TWO CLOSED 500MB LOWS ARE LEANING UP AGAINST
THIS RIDGE. ONE CLOSED LOW ALOFT IS CENTERED OVER THE CHUKOTSK
PENINSULA...THE OTHER IS SPINNING AWAY OVER THE GULF OF ALASKA.
DOWN AT THE SURFACE THE IMPORTANT FEATURES ARE THE 1027MB HIGH
CENTERED OVER THE ARCTIC OCEAN AND THE THERMAL TROUGH IN THE
INTERIOR. NUMEROUS SHORT WAVE FEATURES WILL RIDE AROUND THESE HIGH
AND LOW CENTERS...BUT EXPECT NO GREAT TO CHANGE IN THE OVERALL
ORIENTATION ALOFT FOR THE NEXT FEW DAYS. NUMERICAL MODELS HAVE
BEEN INCONSISTENT IN THEIR HANDLING OF THESE SHORT WAVES...
ESPECIALLY THE EASTERLY WAVES OVER THE INTERIOR. ECMWF APPEARED TO
HAVE HAD BEST HANDLE ON A SHORT WAVE OVER THE SOUTHEAST INTERIOR
THIS MORNING.

NORTH SLOPE...SEA LEVEL PRESSURE CONTRAST BETWEEN THE SURFACE HIGH
OFFSHORE AND THE THERMAL TROUGH OVER THE INTERIOR IS SOMEWHAT
STRONGER THAN NORMAL...RESULTING IN EASTERLY WINDS THAT ARE
RESPECTABLY STRONG FOR THIS TIME OF YEAR. WINDS HAVE BEEN
STRONGEST IN THE EASTERN ARCTIC...ACCORDINGLY WILL ISSUE GALE
WARNINGS FOR MARINE AREAS 240 AND 245. ALSO WILL MENTION WIND
GUSTS TO 40 MPH FOR PUBLIC ZONES 203 AND 204. PRESSURE GRADIENT
WILL RELAX GRADUALLY FRIDAY AND INTO THE WEEKEND.

WEST COAST...MAINLY QUIET WITH NO SIGNIFICANT LOW PRESSURE CENTERS
IN THE BERING SEA FOR THE NEXT SEVERAL DAYS. MINOR BOUT OF
MIXED PHASE PRECIP IN COASTAL NORTHWEST CORNER TONIGHT WITH
TEMPERATURES HOVERING AROUND FREEZING. INLAND ZONES WILL BE
SOMEWHAT CONVECTIVE IN THE AFTERNOONS AND EVENINGS.

INTERIOR...CONVECTION IS THE ISSUE FOR NEXT COUPLE DAYS. THERMAL
TROUGH IS IN THE SOUTHERN INTERIOR TODAY TO PROVIDE A DYNAMIC
FOCUS FOR CONVECTION...BUT INDICATORS OF INSTABILITY SUCH AS
LIFTED INDEX AND VERTICAL TOTALS SHOW CONVECTIVE POTENTIAL IS
WIDESPREAD ACROSS THE INTERIOR. THERMAL TROUGH EDGES NORTHWARD AND
WEAKENS OVER NEXT 48 HOURS...RESULT IS A MORE DIFFUSE PATTERN WITH
INDISTINCT TRIGGERS FOR EACH DAYS CONVECTION.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.FIRE WEATHER...MOISTURE CONTENT OF AIR MASS IN THE INTERIOR IS
HIGH ENOUGH TO KEEP AFTERNOON MIN RH LEVELS FROM DROPPING TO RED
FLAG LEVELS TODAY OR FRIDAY. EASTERLY FLOW ALOFT WILL KEEP
CONVECTIVE STORMS MOVING ALONG AND LIMIT PRECIP POTENTIAL FOR ANY
INDIVIDUAL SPOT ON THE GROUND. HOWEVER...DO NOT CONSIDER THAT
POTENTIAL FOR DRY LIGHTNING IS PARTICULARLY HIGH DUE TO
RESPECTABLE MOISTURE CONTENT OF THE AIR MASS. DEW POINTS IN FAIRBANKS
AREA HAVE REACHED INTO THE LOW 50S TODAY.

&&

.HYDROLOGY...BREAKUP IS WINDING DOWN ON THE NORTH SLOPE. RIVER
LEVELS HAVE COME DOWN AT THE COLVILLE RIVER DELTA AS INFLUENCE OF
SNOW MELT IS WANING. ACCORDINGLY...HAVE CANCELLED THE FLOOD
ADVISORY FOR ZONE 203 AT THE COLVILLE DELTA.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
SMALL CRAFT ADVISORY FOR PKZ225-PKZ230.

GALE WARNING FOR PKZ240-PKZ245.

BRISK WIND ADVISORY FOR PKZ235-PKZ240-PKZ245.
&&

ES JUN 10

In the hours before

Special weather statement, Jun 3, 3:29 PM AKDT, 1 hour 46 minutes before

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Nearby

Severe Thunderstorm Warnings in Alaska, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.