Alert archive / Alaska / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 1, NWS Fairbanks, AK

May 31, 2004

NWS Fairbanks, AK issued this severe thunderstorm warning at May 31, 2004, 3:44 PM AKDT. It was in force for 20 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 31, 2004, 3:44 PM AKDT (23:44 UTC)
Expired
Jun 1, 2004, 11:40 AM AKDT
In force
20 hr
Issued by
NWS Fairbanks, AK
Area
Counties, with a storm outline in the text

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Fairbanks, (PFAI), launched 12:00Z, 11.7 hours before the alert went out and 2 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-pSkew-T log-p diagram, Fairbanks, at 12:00Z on 2004-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fairbanks, at 12:00Z on 2004-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
5 J/kg
Mixed-layer CIN
-237 J/kg
Mixed-layer LCL
2008 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUAK59 PAFG 312344
SVRAFG

AKZ222-010045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
340 PM ADT MON MAY 31 2004

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MIDDLE TANANA VALLEY INCLUDING FAIRBANKS - FORT WAINWRIGHT -
  ESTER - CHENA HOT SPRINGS ROAD - PARKS HIGHWAY FAIRBANKS TO NEAR
NENANA - RICHARDSON HIGHWAY FAIRBANKS TO NEAR SALCHA - STEESE
HIGHWAY FAIRBANKS TO S AREA OF ALASKA THIS INCLUDES THE CITIES
OF...FOX...FAIRBANKS...FORT WAINWRIGHT

* UNTIL 440 PM ADT

* AT 340 PM ADT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR FOX...OR
ABOUT OVER FOX...AND MOVING SOUTHWEST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FAIRGROUNDS...DOWNTOWN FAIRBANKS...COLLEGE...CHENA RIDGE AND
BIRCH HILL.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.

LAT...LON 6481 14811 6468 14777 6487 14730 6501 14766

$$

CS

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 May 31, 9:30 AM AKDT, 6 hours 14 minutes earlier.

Area forecast discussion, May 31, 9:30 AM AKDT, 6 hours 14 minutes before
NORTH ALASKA FORECAST DISCUSSION
230 PM ADT MON MAY 31 2004

.DISCUSSION...

.ALOFT...LOW PRESSURES WILL CONTINUE MOVING EASTWARD NEAR 54 NORTH
DURING FOR THE REST OF THE WEEK. THIS WILL KEEP SYSTEMS TO THE
SOUTH OF NORTHERN ALASKA. ON FRI NIGHT THE GFS190 HAS A LOW
PRESSURE CENTERED NEAR 80N/180W WITH A TROUGH ADVANCING EAST OF
WRANGEL ISLAND. THE POSITION OF THE LOW IS MUCH FURTHER NORTH THAN
WAS FORECAST BY YESTERDAYS MODEL RUN.

.SURFACE...THE THERMAL TROUGH OVER THE TANANA VALLEY WILL ADVANCE
WEST AND NORTH OVER THE NEXT COUPLE OF DAYS. ON WED AFTERNOON IT
COULD BE AS FAR WEST AS NORTON SOUND AND KOTZEBUE SOUND AND NORTH
OVER THE BROOKS RANGE TO THE EASTERN UPPER YUKON VALLEY. AT THAT
TIME A RIDGE WILL BE BUILDING WEST OVER THE ALASKA RANGE. THE
RIDGE COULD SPREAD OVER THE INTERIOR WED NIGHT AND THU.

.NORTH SLOPE...THERE WILL BE LITTLE IN THE WAY OF PRECIPITATION IN
THE FORESEABLE FUTURE. EAST WINDS WILL CONTINUE THROUGH WED. A
BUILDING RIDGE OVER THE INTERIOR WED NIGHT AND THU WILL CHANGE
WINDS TO A WESTERLY DIRECTION. AREAS OF FOG WILL CONTINUE IN THE
ONSHORE FLOW.

.WEST COAST...THUNDERSTORM COVERAGE WILL INCREASE DURING THE NEXT
TWO DAYS AS A THERMAL TROUGH DEEPENS OVER THE AREA. A RIDGE
BUILDING WESTWARD ON THU WILL DIMINISH THE CHANCES OF
THUNDERSTORMS SOMEWHAT. WINDS WILL BE RATHER LIGHT AND CONTROLLED
MAINLY BY DIURNAL HEATING.

.INTERIOR...THE THERMAL TROUGH WILL WEAKEN THU AS A RIDGE BUILDS
OVER NORTHERN ALASKA FROM THE EAST. THIS SHOULD GIVE SOME
TEMPORARY RELIEF FROM THE STRENGTH OF THUNDERSTORMS BEFORE THE
THERMAL TROUGH DEEPENS AGAIN OVER THE SOUTHERN INTERIOR ON FRI.

.HYDRO...NO SIGNIFICANT ISSUES.

.FIRE WEATHER...NO SIGNIFICANT ISSUES EXCEPT FOR WET
THUNDERSTORMS.

.AFG...WATCH/WARNING/ADVISORIES...
PUBLIC...DENSE FOG ADVISORY ZONE 213 SAINT LAWRENCE ISLAND AND THE
            BERING STRAIT.
MARINE...NONE.

DA MAY 04

In the hours before

Special weather statement, May 31, 9:50 AM AKDT, 5 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FAIRBANKS AK
250 PM ADT MON MAY 31 2004

AKZ220>224-010000-
YUKON FLATS AND SURROUNDING UPLANDS-CENTRAL INTERIOR-MIDDLE TANANA
VALLEY-DELTANA AND TANANA FLATS-
INCLUDING...FORT YUKON...VENETIE...CENTRAL...CIRCLE...STEVENS
VILLAGE...BEAVER...CHALKYITSIK...BIRCH CREEK...CIRCLE HOT
SPRINGS...EAGLE SUMMIT...TWELVEMILE SUMMIT...NENANA...ANDERSON...
TANANA...MINTO...MANLEY HOT SPRINGS...RAMPART...LAKE MINCHUMINA...
LIVENGOOD...FAIRBANKS...FORT WAINWRIGHT...EIELSON AFB...ESTER...
NORTH POLE...MOOSE CREEK...TWO RIVERS...FOX...CHATANIKA...CHENA
HOT SPRINGS...SOURDOUGH CAMP..SALCHA...DELTA JUNCTION...FORT
GREELY...HARDING/BIRCH LAKE...DRY CREEK...DOT LAKE...HEALY LAKE
250 PM ADT MON MAY 31 2004

THUNDERSTORMS HAVE DEVELOPED IN THE AREA AGAIN THIS AFTERNOON.

WEATHER RADAR INDICATES THAT A FEW OF THE STORMS CONTAIN HAIL
AND GUSTY WINDS.

AT 250 PM THE STRONGEST STORMS WERE NORTH OF TWO RIVERS...EAST
OF LIVENGOOD AND NORTHEAST OF MANLEY HOT SPRINGS.

STRONG STORMS MAY MOVE INTO THE URBAN FAIRBANKS AREA AFTER 330 PM.

RT MAY 04
Special weather statement, May 31, 10:40 AM AKDT, 5 hours 4 minutes before
AKZ222-010045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
340 PM ADT MON MAY 31 2004

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MIDDLE TANANA VALLEY INCLUDING FAIRBANKS - FORT WAINWRIGHT -
  ESTER - CHENA HOT SPRINGS ROAD - PARKS HIGHWAY FAIRBANKS TO NEAR
NENANA - RICHARDSON HIGHWAY FAIRBANKS TO NEAR SALCHA - STEESE
HIGHWAY FAIRBANKS TO S AREA OF ALASKA THIS INCLUDES THE CITIES
OF...FOX...FAIRBANKS...FORT WAINWRIGHT

* UNTIL 440 PM ADT

* AT 340 PM ADT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR FOX...OR
ABOUT OVER FOX...AND MOVING SOUTHWEST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FAIRGROUNDS...DOWNTOWN FAIRBANKS...COLLEGE...CHENA RIDGE AND
BIRCH HILL.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.

LAT...LON 6481 14811 6468 14777 6487 14730 6501 14766

CS
Special weather statement, May 31, 11:25 AM AKDT, 4 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FAIRBANKS AK
425 PM ADT MON MAY 31 2004

AKZ222-010145-
MIDDLE TANANA VALLEY-
INCLUDING...FAIRBANKS...FORT WAINWRIGHT...EIELSON AFB...ESTER...
NORTH POLE...MOOSE CREEK...TWO RIVERS...FOX...CHATANIKA...CHENA
HOT SPRINGS...SOURDOUGH CAMP
425 PM ADT MON MAY 31 2004

...SEVERE THUNDERSTORM WARNING ENDED..

THE SEVERE THUNDERSTORM HAS MOVED WEST OF THE MIDDLE TANANA
VALLEY.

CS MAY 04
Local storm report, May 31, 12:46 PM AKDT, 2 hours 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FAIRBANKS AK
546 PM ADT MON MAY 31 2004

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

0400 PM     TSTM WND DMG     4 W FAIRBANKS           64.81N 147.99W
05/31/2004                                      AK   FIRE DEPT/RESCUE

            POWER LINES REPORTED BLOWN DOWN BY STRONG THUNDERSTORM
            WINDS ON CHENA RIDGE ROAD NEAR THE LANGFORD RD. DRIVE
            INTERSECTION.

&&

CS
Local storm report, May 31, 1:32 PM AKDT, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FAIRBANKS AK
632 PM ADT MON MAY 31 2004

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

0400 PM     TSTM WND DMG     FAIRBANKS               64.81N 147.86W
05/31/2004                                      AK   UTILITY COMPANY

            NUMEROUS POWER LINES DOWN ACROSS THE CITY DUE TO STRONG
            THUNDERSTORM WINDS.

&&

CS

Nearby

Severe Thunderstorm Warnings in Alaska, 2004Every severe thunderstorm warning in 2004

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.